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constantes_var.f90

Last change on this file was 8462, checked in by josefine.ghattas, 4 months ago
The Moyano function describing the soil moisture effect on OM decomposition is added. It has been developed by Elodie Salmon in another branch and integrated in ORCHIDEE_2_2 by Bertrad Guenet. This commit corresponds to a corrected version of [8418].
Property svn:keywords set to `Date Revision`
File size: 64.4 KB

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1	! =================================================================================================================================
2	! MODULE : constantes_var
3	!
4	! CONTACT : orchidee-help _at_ listes.ipsl.fr
5	!
6	! LICENCE : IPSL (2006)
7	! This software is governed by the CeCILL licence see ORCHIDEE/ORCHIDEE_CeCILL.LIC
8	!
9	!>\BRIEF constantes_var module contains most constantes like pi, Earth radius, etc...
10	!! and all externalized parameters except pft-dependent constants.
11	!!
12	!!\n DESCRIPTION: This module contains most constantes and the externalized parameters of ORCHIDEE which
13	!! are not pft-dependent.\n
14	!! In this module, you can set the flag diag_qsat in order to detect the pixel where the
15	!! temperature is out of range (look qsatcalc and dev_qsatcalc in qsat_moisture.f90).\n
16	!! The Earth radius is approximated by the Equatorial radius.The Earth's equatorial radius a,
17	!! or semi-major axis, is the distance from its center to the equator and equals 6,378.1370 km.
18	!! The equatorial radius is often used to compare Earth with other planets.\n
19	!! The meridional mean is well approximated by the semicubic mean of the two axe yielding
20	!! 6367.4491 km or less accurately by the quadratic mean of the two axes about 6,367.454 km
21	!! or even just the mean of the two axes about 6,367.445 km.\n
22	!! This module is already USE in module constantes. Therefor no need to USE it seperatly except
23	!! if the subroutines in module constantes are not needed.\n
24	!!
25	!! RECENT CHANGE(S):
26	!!
27	!! REFERENCE(S) :
28	!! - Louis, Jean-Francois (1979), A parametric model of vertical eddy fluxes in the atmosphere.
29	!! Boundary Layer Meteorology, 187-202.\n
30	!!
31	!! SVN :
32	!! $HeadURL: $
33	!! $Date$
34	!! $Revision$
35	!! \n
36	!_ ================================================================================================================================
37
38	MODULE constantes_var
39
40	USE defprec
41
42	IMPLICIT NONE
43	!-
44
45	!-----------------------!
46	! ORCHIDEE CONSTANTS !
47	!-----------------------!
48
49	!
50	! FLAGS
51	!
52	LOGICAL :: river_routing !! activate river routing
53	!$OMP THREADPRIVATE(river_routing)
54	LOGICAL, SAVE :: ok_nudge_mc !! Activate nudging of soil moisture
55	!$OMP THREADPRIVATE(ok_nudge_mc)
56	LOGICAL, SAVE :: ok_nudge_snow!! Activate nudging of snow variables
57	!$OMP THREADPRIVATE(ok_nudge_snow)
58	LOGICAL, SAVE :: nudge_interpol_with_xios !! Activate reading and interpolation with XIOS for nudging fields
59	!$OMP THREADPRIVATE(nudge_interpol_with_xios)
60	LOGICAL :: do_floodplains !! activate flood plains
61	!$OMP THREADPRIVATE(do_floodplains)
62	LOGICAL :: do_irrigation !! activate computation of irrigation flux
63	!$OMP THREADPRIVATE(do_irrigation)
64	LOGICAL :: ok_sechiba !! activate physic of the model
65	!$OMP THREADPRIVATE(ok_sechiba)
66	LOGICAL :: ok_stomate !! activate carbon cycle
67	!$OMP THREADPRIVATE(ok_stomate)
68	LOGICAL :: ok_dgvm !! activate dynamic vegetation
69	!$OMP THREADPRIVATE(ok_dgvm)
70	LOGICAL :: do_wood_harvest !! activate wood harvest
71	!$OMP THREADPRIVATE(do_wood_harvest)
72	LOGICAL :: ok_pheno !! activate the calculation of lai using stomate rather than a prescription
73	!$OMP THREADPRIVATE(ok_pheno)
74	LOGICAL :: ok_bvoc !! activate biogenic volatile organic coumpounds
75	!$OMP THREADPRIVATE(ok_bvoc)
76	LOGICAL :: ok_leafage !! activate leafage
77	!$OMP THREADPRIVATE(ok_leafage)
78	LOGICAL :: ok_radcanopy !! use canopy radiative transfer model
79	!$OMP THREADPRIVATE(ok_radcanopy)
80	LOGICAL :: ok_multilayer !! use canopy radiative transfer model with multi-layers
81	!$OMP THREADPRIVATE(ok_multilayer)
82	LOGICAL :: ok_pulse_NOx !! calculate NOx emissions with pulse
83	!$OMP THREADPRIVATE(ok_pulse_NOx)
84	LOGICAL :: ok_bbgfertil_NOx !! calculate NOx emissions with bbg fertilizing effect
85	!$OMP THREADPRIVATE(ok_bbgfertil_NOx)
86	LOGICAL :: ok_cropsfertil_NOx !! calculate NOx emissions with fertilizers use
87	!$OMP THREADPRIVATE(ok_cropsfertil_NOx)
88
89	LOGICAL :: ok_co2bvoc_poss !! CO2 inhibition on isoprene activated following Possell et al. (2005) model
90	!$OMP THREADPRIVATE(ok_co2bvoc_poss)
91	LOGICAL :: ok_co2bvoc_wilk !! CO2 inhibition on isoprene activated following Wilkinson et al. (2006) model
92	!$OMP THREADPRIVATE(ok_co2bvoc_wilk)
93
94	LOGICAL, SAVE :: OFF_LINE_MODE = .FALSE. !! ORCHIDEE detects if it is coupled with a GCM or
95	!! just use with one driver in OFF-LINE. (true/false)
96	!$OMP THREADPRIVATE(OFF_LINE_MODE)
97	LOGICAL, SAVE :: impose_param = .TRUE. !! Flag impos_param : read all the parameters in the run.def file
98	!$OMP THREADPRIVATE(impose_param)
99	CHARACTER(LEN=80), SAVE :: restname_in = 'NONE' !! Input Restart files name for Sechiba component
100	!$OMP THREADPRIVATE(restname_in)
101	CHARACTER(LEN=80), SAVE :: restname_out = 'sechiba_rest_out.nc' !! Output Restart files name for Sechiba component
102	!$OMP THREADPRIVATE(restname_out)
103	CHARACTER(LEN=80), SAVE :: stom_restname_in = 'NONE' !! Input Restart files name for Stomate component
104	!$OMP THREADPRIVATE(stom_restname_in)
105	CHARACTER(LEN=80), SAVE :: stom_restname_out = 'stomate_rest_out.nc' !! Output Restart files name for Stomate component
106	!$OMP THREADPRIVATE(stom_restname_out)
107	INTEGER, SAVE :: printlev=2 !! Standard level for text output [0, 1, 2, 3]
108	!$OMP THREADPRIVATE(printlev)
109
110	!
111	! TIME
112	!
113	INTEGER(i_std), PARAMETER :: spring_days_max = 40 !! Maximum number of days during which we watch for possible spring frost damage
114	!
115	! SPECIAL VALUES
116	!
117	INTEGER(i_std), PARAMETER :: undef_int = 999999999 !! undef integer for integer arrays (unitless)
118	!-
119	REAL(r_std), SAVE :: val_exp = 999999. !! Specific value if no restart value (unitless)
120	!$OMP THREADPRIVATE(val_exp)
121	REAL(r_std), PARAMETER :: undef = -9999. !! Special value for stomate (unitless)
122
123	REAL(r_std), PARAMETER :: min_sechiba = 1.E-8_r_std !! Epsilon to detect a near zero floating point (unitless)
124	REAL(r_std), PARAMETER :: undef_sechiba = 1.E+20_r_std !! The undef value used in SECHIBA (unitless)
125
126	REAL(r_std), PARAMETER :: min_stomate = 1.E-8_r_std !! Epsilon to detect a near zero floating point (unitless)
127	REAL(r_std), PARAMETER :: large_value = 1.E33_r_std !! some large value (for stomate) (unitless)
128
129	REAL(r_std), SAVE :: alpha_nudge_mc !! Nudging constant for soil moisture
130	!$OMP THREADPRIVATE(alpha_nudge_mc)
131	REAL(r_std), SAVE :: alpha_nudge_snow !! Nudging constant for snow variables
132	!$OMP THREADPRIVATE(alpha_nudge_snow)
133
134	!
135	! DIMENSIONING AND INDICES PARAMETERS
136	!
137	INTEGER(i_std), PARAMETER :: ibare_sechiba = 1 !! Index for bare soil in Sechiba (unitless)
138	INTEGER(i_std), PARAMETER :: ivis = 1 !! index for albedo in visible range (unitless)
139	INTEGER(i_std), PARAMETER :: inir = 2 !! index for albeod i near-infrared range (unitless)
140	INTEGER(i_std), PARAMETER :: nnobio = 1 !! Number of other surface types: land ice (lakes,cities, ...) (unitless)
141	INTEGER(i_std), PARAMETER :: iice = 1 !! Index for land ice (see nnobio) (unitless)
142	!-
143	!! Soil
144	INTEGER(i_std), PARAMETER :: classnb = 9 !! Levels of soil colour classification (unitless)
145	!-
146	INTEGER(i_std), PARAMETER :: nleafages = 4 !! leaf age discretisation ( 1 = no discretisation )(unitless)
147	!-
148	!! litter fractions: indices (unitless)
149	INTEGER(i_std), PARAMETER :: ileaf = 1 !! Index for leaf compartment (unitless)
150	INTEGER(i_std), PARAMETER :: isapabove = 2 !! Index for sapwood above compartment (unitless)
151	INTEGER(i_std), PARAMETER :: isapbelow = 3 !! Index for sapwood below compartment (unitless)
152	INTEGER(i_std), PARAMETER :: iheartabove = 4 !! Index for heartwood above compartment (unitless)
153	INTEGER(i_std), PARAMETER :: iheartbelow = 5 !! Index for heartwood below compartment (unitless)
154	INTEGER(i_std), PARAMETER :: iroot = 6 !! Index for roots compartment (unitless)
155	INTEGER(i_std), PARAMETER :: ifruit = 7 !! Index for fruits compartment (unitless)
156	INTEGER(i_std), PARAMETER :: icarbres = 8 !! Index for reserve compartment (unitless)
157	INTEGER(i_std), PARAMETER :: nparts = 8 !! Number of biomass compartments (unitless)
158	!-
159	!! indices for assimilation parameters
160	INTEGER(i_std), PARAMETER :: ivcmax = 1 !! Index for vcmax (assimilation parameters) (unitless)
161	INTEGER(i_std), PARAMETER :: npco2 = 1 !! Number of assimilation parameters (unitless)
162	!-
163	!! trees and litter: indices for the parts of heart-
164	!! and sapwood above and below the ground
165	INTEGER(i_std), PARAMETER :: iabove = 1 !! Index for above part (unitless)
166	INTEGER(i_std), PARAMETER :: ibelow = 2 !! Index for below part (unitless)
167	INTEGER(i_std), PARAMETER :: nlevs = 2 !! Number of levels for trees and litter (unitless)
168	!-
169	!! litter: indices for metabolic and structural part
170	INTEGER(i_std), PARAMETER :: imetabolic = 1 !! Index for metabolic litter (unitless)
171	INTEGER(i_std), PARAMETER :: istructural = 2 !! Index for structural litter (unitless)
172	INTEGER(i_std), PARAMETER :: nlitt = 2 !! Number of levels for litter compartments (unitless)
173	!-
174	!! carbon pools: indices
175	INTEGER(i_std), PARAMETER :: iactive = 1 !! Index for active carbon pool (unitless)
176	INTEGER(i_std), PARAMETER :: islow = 2 !! Index for slow carbon pool (unitless)
177	INTEGER(i_std), PARAMETER :: ipassive = 3 !! Index for passive carbon pool (unitless)
178	INTEGER(i_std), PARAMETER :: ncarb = 3 !! Number of soil carbon pools (unitless)
179	!-
180	!! For isotopes and nitrogen
181	INTEGER(i_std), PARAMETER :: nelements = 1 !! Number of isotopes considered
182	INTEGER(i_std), PARAMETER :: icarbon = 1 !! Index for carbon
183	!
184	!! Indices used for analytical spin-up
185	INTEGER(i_std), PARAMETER :: nbpools = 7 !! Total number of carbon pools (unitless)
186	INTEGER(i_std), PARAMETER :: istructural_above = 1 !! Index for structural litter above (unitless)
187	INTEGER(i_std), PARAMETER :: istructural_below = 2 !! Index for structural litter below (unitless)
188	INTEGER(i_std), PARAMETER :: imetabolic_above = 3 !! Index for metabolic litter above (unitless)
189	INTEGER(i_std), PARAMETER :: imetabolic_below = 4 !! Index for metabolic litter below (unitless)
190	INTEGER(i_std), PARAMETER :: iactive_pool = 5 !! Index for active carbon pool (unitless)
191	INTEGER(i_std), PARAMETER :: islow_pool = 6 !! Index for slow carbon pool (unitless)
192	INTEGER(i_std), PARAMETER :: ipassive_pool = 7 !! Index for passive carbon pool (unitless)
193	!
194	!! Indicies used for output variables on Landuse tiles defined according to LUMIP project
195	!! Note that ORCHIDEE do not represent pasture and urban land. Therefor the variables will have
196	!! val_exp as missing value for these tiles.
197	INTEGER(i_std), PARAMETER :: nlut=4 !! Total number of landuse tiles according to LUMIP
198	INTEGER(i_std), PARAMETER :: id_psl=1 !! Index for primary and secondary land
199	INTEGER(i_std), PARAMETER :: id_crp=2 !! Index for crop land
200	INTEGER(i_std), PARAMETER :: id_pst=3 !! Index for pasture land
201	INTEGER(i_std), PARAMETER :: id_urb=4 !! Index for urban land
202
203
204	!
205	! NUMERICAL AND PHYSICS CONSTANTS
206	!
207	!
208
209	!-
210	! 1. Mathematical and numerical constants
211	!-
212	REAL(r_std), PARAMETER :: pi = 3.141592653589793238 !! pi souce : http://mathworld.wolfram.com/Pi.html (unitless)
213	REAL(r_std), PARAMETER :: euler = 2.71828182845904523 !! e source : http://mathworld.wolfram.com/e.html (unitless)
214	REAL(r_std), PARAMETER :: zero = 0._r_std !! Numerical constant set to 0 (unitless)
215	REAL(r_std), PARAMETER :: undemi = 0.5_r_std !! Numerical constant set to 1/2 (unitless)
216	REAL(r_std), PARAMETER :: un = 1._r_std !! Numerical constant set to 1 (unitless)
217	REAL(r_std), PARAMETER :: moins_un = -1._r_std !! Numerical constant set to -1 (unitless)
218	REAL(r_std), PARAMETER :: deux = 2._r_std !! Numerical constant set to 2 (unitless)
219	REAL(r_std), PARAMETER :: trois = 3._r_std !! Numerical constant set to 3 (unitless)
220	REAL(r_std), PARAMETER :: quatre = 4._r_std !! Numerical constant set to 4 (unitless)
221	REAL(r_std), PARAMETER :: cinq = 5._r_std !![DISPENSABLE] Numerical constant set to 5 (unitless)
222	REAL(r_std), PARAMETER :: six = 6._r_std !![DISPENSABLE] Numerical constant set to 6 (unitless)
223	REAL(r_std), PARAMETER :: huit = 8._r_std !! Numerical constant set to 8 (unitless)
224	REAL(r_std), PARAMETER :: mille = 1000._r_std !! Numerical constant set to 1000 (unitless)
225
226	!-
227	! 2 . Physics
228	!-
229	#ifndef OASIS
230	REAL(r_std), PARAMETER :: R_Earth = 6378000. !! Radius of the Earth : Earth radius ~= Equatorial radius (m)
231	#else
232	REAL(r_std), PARAMETER :: R_Earth = 6370000. !! When coupled through OASIS it is with WRF. We have to use another Earth radius
233	#endif
234	REAL(r_std), PARAMETER :: mincos = 0.0001 !! Minimum cosine value used for interpolation (unitless)
235	REAL(r_std), PARAMETER :: pb_std = 1013. !! standard pressure (hPa)
236	REAL(r_std), PARAMETER :: ZeroCelsius = 273.15 !! 0 degre Celsius in degre Kelvin (K)
237	REAL(r_std), PARAMETER :: tp_00 = 273.15 !! 0 degre Celsius in degre Kelvin (K)
238	REAL(r_std), PARAMETER :: chalsu0 = 2.8345E06 !! Latent heat of sublimation (J.kg^{-1})
239	REAL(r_std), PARAMETER :: chalev0 = 2.5008E06 !! Latent heat of evaporation (J.kg^{-1})
240	REAL(r_std), PARAMETER :: chalfu0 = chalsu0-chalev0 !! Latent heat of fusion (J.kg^{-1})
241	REAL(r_std), PARAMETER :: c_stefan = 5.6697E-8 !! Stefan-Boltzman constant (W.m^{-2}.K^{-4})
242	REAL(r_std), PARAMETER :: cp_air = 1004.675 !! Specific heat of dry air (J.kg^{-1}.K^{-1})
243	REAL(r_std), PARAMETER :: cte_molr = 287.05 !! Specific constant of dry air (kg.mol^{-1})
244	REAL(r_std), PARAMETER :: kappa = cte_molr/cp_air !! Kappa : ratio between specific constant and specific heat
245	!! of dry air (unitless)
246	REAL(r_std), PARAMETER :: msmlr_air = 28.964E-03 !! Molecular weight of dry air (kg.mol^{-1})
247	REAL(r_std), PARAMETER :: msmlr_h2o = 18.02E-03 !! Molecular weight of water vapor (kg.mol^{-1})
248	REAL(r_std), PARAMETER :: cp_h2o = & !! Specific heat of water vapor (J.kg^{-1}.K^{-1})
249	& cp_air(quatremsmlr_air)/( 3.5_r_std*msmlr_h2o)
250	REAL(r_std), PARAMETER :: cte_molr_h2o = cte_molr/quatre !! Specific constant of water vapor (J.kg^{-1}.K^{-1})
251	REAL(r_std), PARAMETER :: retv = msmlr_air/msmlr_h2o-un !! Ratio between molecular weight of dry air and water
252	!! vapor minus 1(unitless)
253	REAL(r_std), PARAMETER :: rvtmp2 = cp_h2o/cp_air-un !! Ratio between specific heat of water vapor and dry air
254	!! minus 1 (unitless)
255	REAL(r_std), PARAMETER :: cepdu2 = (0.1_r_std)**2 !! Squared wind shear (m^2.s^{-2})
256	REAL(r_std), PARAMETER :: ct_karman = 0.41_r_std !! Van Karmann Constant (unitless)
257	REAL(r_std), PARAMETER :: cte_grav = 9.80665_r_std !! Acceleration of the gravity (m.s^{-2})
258	REAL(r_std), PARAMETER :: pa_par_hpa = 100._r_std !! Transform pascal into hectopascal (unitless)
259	REAL(r_std), PARAMETER :: RR = 8.314 !! Ideal gas constant (J.mol^{-1}.K^{-1})
260	REAL(r_std), PARAMETER :: Sct = 1370. !! Solar constant (W.m^{-2})
261
262
263	INTEGER(i_std), SAVE :: testpft = 6
264	!$OMP THREADPRIVATE(testpft)
265	!-
266	! 3. Climatic constants
267	!-
268	!! Constantes of the Louis scheme
269	REAL(r_std), SAVE :: cb = 5._r_std !! Constant of the Louis scheme (unitless);
270	!! reference to Louis (1979)
271	!$OMP THREADPRIVATE(cb)
272	REAL(r_std), SAVE :: cc = 5._r_std !! Constant of the Louis scheme (unitless);
273	!! reference to Louis (1979)
274	!$OMP THREADPRIVATE(cc)
275	REAL(r_std), SAVE :: cd = 5._r_std !! Constant of the Louis scheme (unitless);
276	!! reference to Louis (1979)
277	!$OMP THREADPRIVATE(cd)
278	REAL(r_std), SAVE :: rayt_cste = 125. !! Constant in the computation of surface resistance (W.m^{-2})
279	!$OMP THREADPRIVATE(rayt_cste)
280	REAL(r_std), SAVE :: defc_plus = 23.E-3 !! Constant in the computation of surface resistance (K.W^{-1})
281	!$OMP THREADPRIVATE(defc_plus)
282	REAL(r_std), SAVE :: defc_mult = 1.5 !! Constant in the computation of surface resistance (K.W^{-1})
283	!$OMP THREADPRIVATE(defc_mult)
284
285	!-
286	! 4. Soil thermodynamics constants
287	!-
288	! Look at constantes_soil.f90
289
290
291	!
292	! OPTIONAL PARTS OF THE MODEL
293	!
294	LOGICAL,PARAMETER :: diag_qsat = .TRUE. !! One of the most frequent problems is a temperature out of range
295	!! we provide here a way to catch that in the calling procedure.
296	!! (from Jan Polcher)(true/false)
297	LOGICAL, SAVE :: almaoutput =.FALSE. !! Selects the type of output for the model.(true/false)
298	!! Value is read from run.def in intersurf_history
299	!$OMP THREADPRIVATE(almaoutput)
300
301	!
302	! DIVERSE
303	!
304	CHARACTER(LEN=100), SAVE :: stomate_forcing_name='NONE' !! NV080800 Name of STOMATE forcing file (unitless)
305	! Compatibility with Nicolas Viovy driver.
306	!$OMP THREADPRIVATE(stomate_forcing_name)
307	CHARACTER(LEN=100), SAVE :: stomate_Cforcing_name='NONE' !! NV080800 Name of soil forcing file (unitless)
308	! Compatibility with Nicolas Viovy driver.
309	!$OMP THREADPRIVATE(stomate_Cforcing_name)
310	INTEGER(i_std), SAVE :: forcing_id !! Index of the forcing file (unitless)
311	!$OMP THREADPRIVATE(forcing_id)
312	LOGICAL, SAVE :: allow_forcing_write=.TRUE. !! Allow writing of stomate_forcing file.
313	!! This variable will be set to false for teststomate.
314	!$OMP THREADPRIVATE(allow_forcing_write)
315
316
317
318	!------------------------!
319	! SECHIBA PARAMETERS !
320	!------------------------!
321
322
323	!
324	! GLOBAL PARAMETERS
325	!
326	REAL(r_std), SAVE :: min_wind = 0.1 !! The minimum wind (m.s^{-1})
327	!$OMP THREADPRIVATE(min_wind)
328	REAL(r_std), PARAMETER :: min_qc = 1.e-4 !! The minimum value for qc (qc=drag*wind) used in coupled(enerbil) and forced mode (enerbil and diffuco)
329	REAL(r_std), SAVE :: snowcri = 1.5 !! Sets the amount above which only sublimation occures (kg.m^{-2})
330	!$OMP THREADPRIVATE(snowcri)
331
332
333	!
334	! FLAGS ACTIVATING SUB-MODELS
335	!
336	LOGICAL, SAVE :: treat_expansion = .FALSE. !! Do we treat PFT expansion across a grid point after introduction? (true/false)
337	!$OMP THREADPRIVATE(treat_expansion)
338	LOGICAL, SAVE :: ok_herbivores = .FALSE. !! flag to activate herbivores (true/false)
339	!$OMP THREADPRIVATE(ok_herbivores)
340	LOGICAL, SAVE :: harvest_agri = .TRUE. !! flag to harvest aboveground biomass from agricultural PFTs)(true/false)
341	!$OMP THREADPRIVATE(harvest_agri)
342	LOGICAL, SAVE :: lpj_gap_const_mort !! constant moratlity (true/false). Default value depend on OK_DGVM.
343	!$OMP THREADPRIVATE(lpj_gap_const_mort)
344	LOGICAL, SAVE :: disable_fire = .TRUE. !! flag that disable fire (true/false)
345	!$OMP THREADPRIVATE(disable_fire)
346	LOGICAL, SAVE :: spinup_analytic = .FALSE. !! Flag to activate analytical resolution for spinup (true/false)
347	!$OMP THREADPRIVATE(spinup_analytic)
348
349	!
350	! CONFIGURATION VEGETATION
351	!
352	LOGICAL, SAVE :: agriculture = .TRUE. !! allow agricultural PFTs (true/false)
353	!$OMP THREADPRIVATE(agriculture)
354	LOGICAL, SAVE :: impveg = .FALSE. !! Impose vegetation ? (true/false)
355	!$OMP THREADPRIVATE(impveg)
356	LOGICAL, SAVE :: impsoilt = .FALSE. !! Impose soil ? (true/false)
357	!$OMP THREADPRIVATE(impsoilt)
358	LOGICAL, SAVE :: impslope = .FALSE. !! Impose reinf_slope ? (true/false)
359	!$OMP THREADPRIVATE(impslope)
360	LOGICAL, SAVE :: do_now_stomate_lcchange = .FALSE. !! Time to call lcchange in stomate_lpj
361	!$OMP THREADPRIVATE(do_now_stomate_lcchange)
362	LOGICAL, SAVE :: do_now_stomate_woodharvest = .FALSE. !! Time to call woodharvest in stomate_lpj
363	!$OMP THREADPRIVATE(do_now_stomate_woodharvest)
364	LOGICAL, SAVE :: done_stomate_lcchange = .FALSE. !! If true, call lcchange in stomate_lpj has just been done.
365	!$OMP THREADPRIVATE(done_stomate_lcchange)
366	LOGICAL, SAVE :: read_lai = .FALSE. !! Flag to read a map of LAI if STOMATE is not activated (true/false)
367	!$OMP THREADPRIVATE(read_lai)
368	LOGICAL, SAVE :: veget_reinit = .TRUE. !! To change LAND USE file in a run. (true/false)
369	!$OMP THREADPRIVATE(veget_reinit)
370	LOGICAL, SAVE :: vegetmap_reset = .FALSE.!! Reset the vegetation map and reset carbon related variables
371	!$OMP THREADPRIVATE(vegetmap_reset)
372	INTEGER(i_std) , SAVE :: veget_update !! Update frequency in years for landuse (nb of years)
373	!$OMP THREADPRIVATE(veget_update)
374	!
375	! PARAMETERS USED BY BOTH HYDROLOGY MODELS
376	!
377	REAL(r_std), SAVE :: max_snow_age = 50._r_std !! Maximum period of snow aging (days)
378	!$OMP THREADPRIVATE(max_snow_age)
379	REAL(r_std), SAVE :: snow_trans = 0.2_r_std !! Transformation time constant for snow (m), reduced from the value 0.3 (04/07/2016)
380	!$OMP THREADPRIVATE(snow_trans)
381	REAL(r_std), SAVE :: sneige !! Lower limit of snow amount (kg.m^{-2})
382	!$OMP THREADPRIVATE(sneige)
383	REAL(r_std), SAVE :: maxmass_snow = 3000. !! The maximum mass of snow (kg.m^{-2})
384	!$OMP THREADPRIVATE(maxmass_snow)
385
386	!! Heat capacity
387	REAL(r_std), PARAMETER :: rho_water = 1000. !! Density of water (kg/m3)
388	REAL(r_std), PARAMETER :: rho_ice = 920. !! Density of ice (kg/m3)
389	REAL(r_std), PARAMETER :: rho_soil = 2700. !! Density of soil particles (kg/m3), value from Peters-Lidard et al. 1998
390
391	!! Thermal conductivities
392	REAL(r_std), PARAMETER :: cond_water = 0.6 !! Thermal conductivity of liquid water (W/m/K)
393	REAL(r_std), PARAMETER :: cond_ice = 2.2 !! Thermal conductivity of ice (W/m/K)
394	REAL(r_std), PARAMETER :: cond_solid = 2.32 !! Thermal conductivity of mineral soil particles (W/m/K)
395
396	!! Time constant of long-term soil humidity (s)
397	REAL(r_std), PARAMETER :: lhf = 0.3336*1.E6 !! Latent heat of fusion (J/kg)
398
399	INTEGER(i_std), PARAMETER :: nsnow=3 !! Number of levels in the snow for explicit snow scheme
400	REAL(r_std), PARAMETER :: XMD = 28.9644E-3
401	REAL(r_std), PARAMETER :: XBOLTZ = 1.380658E-23
402	REAL(r_std), PARAMETER :: XAVOGADRO = 6.0221367E+23
403	REAL(r_std), PARAMETER :: XRD = XAVOGADRO * XBOLTZ / XMD
404	REAL(r_std), PARAMETER :: XCPD = 7.* XRD /2.
405	REAL(r_std), PARAMETER :: phigeoth = 0.057 ! 0. DKtest
406	REAL(r_std), PARAMETER :: thick_min_snow = .01
407
408	!! The maximum snow density and water holding characterisicts
409	REAL(r_std), SAVE :: xrhosmax = 750. ! (kg m-3)
410	!$OMP THREADPRIVATE(xrhosmax)
411	REAL(r_std), SAVE :: xwsnowholdmax1 = 0.03 ! (-)
412	!$OMP THREADPRIVATE(xwsnowholdmax1)
413	REAL(r_std), SAVE :: xwsnowholdmax2 = 0.10 ! (-)
414	!$OMP THREADPRIVATE(xwsnowholdmax2)
415	REAL(r_std), SAVE :: xsnowrhohold = 200.0 ! (kg/m3)
416	!$OMP THREADPRIVATE(xsnowrhohold)
417	REAL(r_std), SAVE :: xrhosmin = 50.
418	!$OMP THREADPRIVATE(xrhosmin)
419	REAL(r_std), PARAMETER :: xci = 2.106e+3
420	REAL(r_std), PARAMETER :: xrv = 6.0221367e+23 * 1.380658e-23 /18.0153e-3
421
422	!! ISBA-ES Critical snow depth at which snow grid thicknesses constant
423	REAL(r_std), PARAMETER :: xsnowcritd = 0.03 ! (m)
424
425	!! The threshold of snow depth used for preventing numerical problem in thermal calculations
426	REAL(r_std), PARAMETER :: snowcritd_thermal = 0.01 ! (m)
427
428	!! ISBA-ES CROCUS (Pahaut 1976): snowfall density coefficients:
429	REAL(r_std), PARAMETER :: snowfall_a_sn = 109.0 !! (kg/m3)
430	REAL(r_std), PARAMETER :: snowfall_b_sn = 6.0 !! (kg/m3/K)
431	REAL(r_std), PARAMETER :: snowfall_c_sn = 26.0 !! [kg/(m7/2 s1/2)]
432
433	REAL(r_std), PARAMETER :: dgrain_new_max= 2.0e-4!! (m) : Maximum grain size of new snowfall
434
435	!! Used in explicitsnow to prevent numerical problems as snow becomes vanishingly thin.
436	REAL(r_std), PARAMETER :: psnowdzmin = .0001 ! m
437	REAL(r_std), PARAMETER :: xsnowdmin = .000001 ! m
438
439	REAL(r_std), PARAMETER :: ph2o = 1000. !! Water density [kg/m3]
440
441	! ISBA-ES Thermal conductivity coefficients from Anderson (1976):
442	! see Boone, Meteo-France/CNRM Note de Centre No. 70 (2002)
443	REAL(r_std), SAVE :: ZSNOWTHRMCOND1 = 0.02 ! [W/m/K]
444	!$OMP THREADPRIVATE(ZSNOWTHRMCOND1)
445	REAL(r_std), SAVE :: ZSNOWTHRMCOND2 = 2.5E-6 ! [W m5/(kg2 K)]
446	!$OMP THREADPRIVATE(ZSNOWTHRMCOND2)
447
448	! ISBA-ES Thermal conductivity: Implicit vapor diffn effects
449	! (sig only for new snow OR high altitudes)
450	! from Sun et al. (1999): based on data from Jordan (1991)
451	! see Boone, Meteo-France/CNRM Note de Centre No. 70 (2002)
452	!
453	REAL(r_std), SAVE :: ZSNOWTHRMCOND_AVAP = -0.06023 ! (W/m/K)
454	!$OMP THREADPRIVATE(ZSNOWTHRMCOND_AVAP)
455	REAL(r_std), SAVE :: ZSNOWTHRMCOND_BVAP = -2.5425 ! (W/m)
456	!$OMP THREADPRIVATE(ZSNOWTHRMCOND_BVAP)
457	REAL(r_std), SAVE :: ZSNOWTHRMCOND_CVAP = -289.99 ! (K)
458	!$OMP THREADPRIVATE(ZSNOWTHRMCOND_CVAP)
459
460	REAL(r_std),SAVE :: xansmax = 0.85 !! Maxmimum snow albedo
461	!$OMP THREADPRIVATE(xansmax)
462	REAL(r_std),SAVE :: xansmin = 0.50 !! Miniumum snow albedo
463	!$OMP THREADPRIVATE(xansmin)
464	REAL(r_std),SAVE :: xans_todry = 0.008 !! Albedo decay rate for dry snow
465	!$OMP THREADPRIVATE(xans_todry)
466	REAL(r_std),SAVE :: xans_t = 0.240 !! Albedo decay rate for wet snow
467	!$OMP THREADPRIVATE(xans_t)
468
469	! ISBA-ES Thermal conductivity coefficients from Anderson (1976):
470	! see Boone, Meteo-France/CNRM Note de Centre No. 70 (2002)
471	REAL(r_std), PARAMETER :: XP00 = 1.E5
472
473	! ISBA-ES Thermal conductivity: Implicit vapor diffn effects
474	! (sig only for new snow OR high altitudes)
475	! from Sun et al. (1999): based on data from Jordan (1991)
476	! see Boone, Meteo-France/CNRM Note de Centre No. 70 (2002)
477	!
478	REAL(r_std), SAVE :: ZSNOWCMPCT_RHOD = 150.0 !! (kg/m3)
479	!$OMP THREADPRIVATE(ZSNOWCMPCT_RHOD)
480	REAL(r_std), SAVE :: ZSNOWCMPCT_ACM = 2.8e-6 !! (1/s
481	!$OMP THREADPRIVATE(ZSNOWCMPCT_ACM)
482	REAL(r_std), SAVE :: ZSNOWCMPCT_BCM = 0.04 !! (1/K)
483	!$OMP THREADPRIVATE(ZSNOWCMPCT_BCM)
484	REAL(r_std), SAVE :: ZSNOWCMPCT_CCM = 460. !! (m3/kg)
485	!$OMP THREADPRIVATE(ZSNOWCMPCT_CCM)
486	REAL(r_std), SAVE :: ZSNOWCMPCT_V0 = 3.7e7 !! (Pa/s)
487	!$OMP THREADPRIVATE(ZSNOWCMPCT_V0)
488	REAL(r_std), SAVE :: ZSNOWCMPCT_VT = 0.081 !! (1/K)
489	!$OMP THREADPRIVATE(ZSNOWCMPCT_VT)
490	REAL(r_std), SAVE :: ZSNOWCMPCT_VR = 0.018 !! (m3/kg)
491	!$OMP THREADPRIVATE(ZSNOWCMPCT_VR)
492
493	!
494	! BVOC : Biogenic activity for each age class
495	!
496	REAL(r_std), SAVE, DIMENSION(nleafages) :: iso_activity = (/0.5, 1.5, 1.5, 0.5/) !! Biogenic activity for each
497	!! age class : isoprene (unitless)
498	!$OMP THREADPRIVATE(iso_activity)
499	REAL(r_std), SAVE, DIMENSION(nleafages) :: methanol_activity = (/1., 1., 0.5, 0.5/) !! Biogenic activity for each
500	!! age class : methanol (unnitless)
501	!$OMP THREADPRIVATE(methanol_activity)
502
503
504	!
505	! Parameters for irrigation scheme
506	!
507	REAL(r_std), SAVE :: irrig_dosmax = 3. !! The maximum irrigation water injected per hour (kg.m^{-2}/hour)
508	!$OMP THREADPRIVATE(irrig_dosmax)
509	REAL(r_std), SAVE :: cum_dh_thr = 0.64 !! Cumulated nroot threshoold to define root zone, and calculate water deficit for irrigation (-)
510	!$OMP THREADPRIVATE(cum_dh_thr)
511	LOGICAL, SAVE :: irrigated_soiltile = .FALSE. !! Do we introduce a new soil tile for irrigated croplands? (true/false)
512	!$OMP THREADPRIVATE(irrigated_soiltile)
513	LOGICAL, SAVE :: old_irrig_scheme = .FALSE. !! Do we run with the old irrigation scheme? (true/false) , add to compatiblity
514	!$OMP THREADPRIVATE(old_irrig_scheme)
515	INTEGER, SAVE :: irrig_st = 3 !! Which is the soil tile with irrigation flux
516	!$OMP THREADPRIVATE(irrig_st)
517	REAL(r_std), SAVE, DIMENSION(3) :: avail_reserve = (/0.9,0.9,0.9/) !! Available water from routing reservoirs, to withdraw for irrigation
518	!! IMPORTANT: As the routing model uses 3 reservoirs, dimension is set to 3
519	!! IMPORTANT: Order of available water must be in this order: streamflow, fast, and slow reservoir
520	!$OMP THREADPRIVATE(avail_reserve)
521	REAL(r_std), SAVE :: beta_irrig = 0.9 !! Threshold multiplier of Target SM to calculate root deficit(unitless)
522	!$OMP THREADPRIVATE(beta_irrig)
523	REAL(r_std), SAVE :: lai_irrig_min = 0.1 !! Minimum LAI to trigger irrigation (kg.m^{-2}/hour)
524	!$OMP THREADPRIVATE(lai_irrig_min)
525	LOGICAL, SAVE :: irrig_map_dynamic_flag = .FALSE. !! Do we use a dynamic irrig map?
526	!$OMP THREADPRIVATE(irrig_map_dynamic_flag)
527	LOGICAL, SAVE :: select_source_irrig = .FALSE. !! Do we use the new priorization scheme, based on maps of equipped area with surface water?
528	!$OMP THREADPRIVATE(select_source_irrig)
529	LOGICAL, SAVE :: Reinfiltr_IrrigField = .FALSE. !! Do we reinfiltrate all runoff from crop soil tile?O
530	!$OMP THREADPRIVATE(Reinfiltr_IrrigField)
531	REAL, SAVE :: reinf_slope_cropParam = 0.8 !! Externalized for irrigated cropland, when Reinfiltr_IrrigField=.TRUE.
532	!! Max value of reinf_slope in irrig_st
533	!$OMP THREADPRIVATE(reinf_slope_cropParam)
534	REAL, SAVE :: a_stream_adduction = 0.05 !! Externalized for available volume to adduction
535	!$OMP THREADPRIVATE(a_stream_adduction)
536
537
538
539	!
540	! condveg.f90
541	!
542
543	! 1. Scalar
544
545	! 1.1 Flags used inside the module
546
547	LOGICAL, SAVE :: alb_bare_model = .FALSE. !! Switch for choosing values of bare soil
548	!! albedo (see header of subroutine)
549	!! (true/false)
550	!$OMP THREADPRIVATE(alb_bare_model)
551	LOGICAL, SAVE :: alb_bg_modis = .TRUE. !! Switch for choosing values of bare soil
552	!! albedo read from file
553	!! (true/false)
554	!$OMP THREADPRIVATE(alb_bg_modis)
555	LOGICAL, SAVE :: impaze = .FALSE. !! Switch for choosing surface parameters
556	!! (see header of subroutine).
557	!! (true/false)
558	!$OMP THREADPRIVATE(impaze)
559	LOGICAL, SAVE :: rough_dyn = .TRUE. !! Chooses between two methods to calculate the
560	!! the roughness height : static or dynamic (varying with LAI)
561	!! (true/false)
562	!$OMP THREADPRIVATE(rough_dyn)
563	LOGICAL, SAVE :: use_ratio_z0m_z0h = .FALSE. !! To impose a constant ratio as done in ROUGH_DYN=F
564	!$OMP THREADPRIVATE(use_ratio_z0m_z0h)
565
566	LOGICAL, SAVE :: new_watstress = .FALSE.
567	!$OMP THREADPRIVATE(new_watstress)
568
569	REAL(r_std), SAVE :: alpha_watstress = 1.
570	!$OMP THREADPRIVATE(alpha_watstress)
571
572	! 1.2 Others
573
574
575	REAL(r_std), SAVE :: height_displacement = 0.66 !! Factor to calculate the zero-plane displacement
576	!! height from vegetation height (m)
577	!$OMP THREADPRIVATE(height_displacement)
578	REAL(r_std), SAVE :: z0_bare = 0.01 !! bare soil roughness length (m)
579	!$OMP THREADPRIVATE(z0_bare)
580	REAL(r_std), SAVE :: z0_ice = 0.001 !! ice roughness length (m)
581	!$OMP THREADPRIVATE(z0_ice)
582	REAL(r_std), SAVE :: tcst_snowa = 10.0 !! Time constant of the albedo decay of snow (days), increased from the value 5.0 (04/07/2016)
583	!$OMP THREADPRIVATE(tcst_snowa)
584	REAL(r_std), SAVE :: snowcri_alb = 10. !! Critical value for computation of snow albedo (cm)
585	!$OMP THREADPRIVATE(snowcri_alb)
586	REAL(r_std), SAVE :: fixed_snow_albedo = undef_sechiba !! To choose a fixed snow albedo value (unitless)
587	!$OMP THREADPRIVATE(fixed_snow_albedo)
588	REAL(r_std), SAVE :: z0_scal = 0.15 !! Surface roughness height imposed (m)
589	!$OMP THREADPRIVATE(z0_scal)
590	REAL(r_std), SAVE :: roughheight_scal = zero !! Effective roughness Height depending on zero-plane
591	!! displacement height (m) (imposed)
592	!$OMP THREADPRIVATE(roughheight_scal)
593	REAL(r_std), SAVE :: emis_scal = 1.0 !! Surface emissivity imposed (unitless)
594	!$OMP THREADPRIVATE(emis_scal)
595
596	REAL(r_std), SAVE :: c1 = 0.32 !! Constant used in the formulation of the ratio of
597	!$OMP THREADPRIVATE(c1) !! friction velocity to the wind speed at the canopy top
598	!! see Ershadi et al. (2015) for more info
599	REAL(r_std), SAVE :: c2 = 0.264 !! Constant used in the formulation of the ratio of
600	!$OMP THREADPRIVATE(c2) !! friction velocity to the wind speed at the canopy top
601	!! see Ershadi et al. (2015) for more info
602	REAL(r_std), SAVE :: c3 = 15.1 !! Constant used in the formulation of the ratio of
603	!$OMP THREADPRIVATE(c3) !! friction velocity to the wind speed at the canopy top
604	!! see Ershadi et al. (2015) for more info
605	REAL(r_std), SAVE :: Cdrag_foliage = 0.2 !! Drag coefficient of the foliage
606	!$OMP THREADPRIVATE(Cdrag_foliage) !! See Ershadi et al. (2015) and Su et. al (2001) for more info
607	REAL(r_std), SAVE :: Ct = 0.01 !! Heat transfer coefficient of the leaf
608	!$OMP THREADPRIVATE(Ct) !! See Ershadi et al. (2015) and Su et. al (2001) for more info
609	REAL(r_std), SAVE :: Prandtl = 0.71 !! Prandtl number used in the calculation of Ct_star
610	!$OMP THREADPRIVATE(Prandtl) !! See Su et. al (2001) for more info
611
612
613
614	! 2. Arrays
615
616	REAL(r_std), SAVE, DIMENSION(2) :: alb_deadleaf = (/ .12, .35/) !! albedo of dead leaves, VIS+NIR (unitless)
617	!$OMP THREADPRIVATE(alb_deadleaf)
618	REAL(r_std), SAVE, DIMENSION(2) :: alb_ice = (/ .60, .20/) !! albedo of ice, VIS+NIR (unitless)
619	!$OMP THREADPRIVATE(alb_ice)
620	REAL(r_std), SAVE, DIMENSION(2) :: albedo_scal = (/ 0.25, 0.25 /) !! Albedo values for visible and near-infrared
621	!! used imposed (unitless)
622	!$OMP THREADPRIVATE(albedo_scal)
623	REAL(r_std) , SAVE, DIMENSION(classnb) :: vis_dry = (/0.24,&
624	&0.22, 0.20, 0.18, 0.16, 0.14, 0.12, 0.10, 0.27/) !! Soil albedo values to soil colour classification:
625	!! dry soil albedo values in visible range
626	!$OMP THREADPRIVATE(vis_dry)
627	REAL(r_std), SAVE, DIMENSION(classnb) :: nir_dry = (/0.48,&
628	&0.44, 0.40, 0.36, 0.32, 0.28, 0.24, 0.20, 0.55/) !! Soil albedo values to soil colour classification:
629	!! dry soil albedo values in near-infrared range
630	!$OMP THREADPRIVATE(nir_dry)
631	REAL(r_std), SAVE, DIMENSION(classnb) :: vis_wet = (/0.12,&
632	&0.11, 0.10, 0.09, 0.08, 0.07, 0.06, 0.05, 0.15/) !! Soil albedo values to soil colour classification:
633	!! wet soil albedo values in visible range
634	!$OMP THREADPRIVATE(vis_wet)
635	REAL(r_std), SAVE, DIMENSION(classnb) :: nir_wet = (/0.24,&
636	&0.22, 0.20, 0.18, 0.16, 0.14, 0.12, 0.10, 0.31/) !! Soil albedo values to soil colour classification:
637	!! wet soil albedo values in near-infrared range
638	!$OMP THREADPRIVATE(nir_wet)
639	REAL(r_std), SAVE, DIMENSION(classnb) :: albsoil_vis = (/ &
640	&0.18, 0.16, 0.16, 0.15, 0.12, 0.105, 0.09, 0.075, 0.25/) !! Soil albedo values to soil colour classification:
641	!! Averaged of wet and dry soil albedo values
642	!! in visible and near-infrared range
643	!$OMP THREADPRIVATE(albsoil_vis)
644	REAL(r_std), SAVE, DIMENSION(classnb) :: albsoil_nir = (/ &
645	&0.36, 0.34, 0.34, 0.33, 0.30, 0.25, 0.20, 0.15, 0.45/) !! Soil albedo values to soil colour classification:
646	!! Averaged of wet and dry soil albedo values
647	!! in visible and near-infrared range
648	!$OMP THREADPRIVATE(albsoil_nir)
649
650	!
651	! diffuco.f90
652	!
653
654	! 0. Constants
655
656	REAL(r_std), PARAMETER :: Tetens_1 = 0.622 !! Ratio between molecular weight of water vapor and molecular weight
657	!! of dry air (unitless)
658	REAL(r_std), PARAMETER :: Tetens_2 = 0.378 !!
659	REAL(r_std), PARAMETER :: ratio_H2O_to_CO2 = 1.6 !! Ratio of water vapor diffusivity to the CO2 diffusivity (unitless)
660	REAL(r_std), PARAMETER :: mol_to_m_1 = 0.0244 !!
661	REAL(r_std), PARAMETER :: RG_to_PAR = 0.5 !!
662	REAL(r_std), PARAMETER :: W_to_mol = 4.6 !! W_to_mmol * RG_to_PAR = 2.3
663
664	! 1. Scalar
665
666	INTEGER(i_std), SAVE :: nlai = 20 !! Number of LAI levels (unitless)
667	!$OMP THREADPRIVATE(nlai)
668	LOGICAL, SAVE :: ldq_cdrag_from_gcm = .FALSE. !! Set to .TRUE. if you want q_cdrag coming from GCM
669	!$OMP THREADPRIVATE(ldq_cdrag_from_gcm)
670	REAL(r_std), SAVE :: laimax = 12. !! Maximal LAI used for splitting LAI into N layers (m^2.m^{-2})
671	!$OMP THREADPRIVATE(laimax)
672	LOGICAL, SAVE :: downregulation_co2 = .TRUE. !! Set to .TRUE. if you want CO2 downregulation version used for CMIP6 6.1.0-6.1.10
673	!$OMP THREADPRIVATE(downregulation_co2)
674	LOGICAL, SAVE :: downregulation_co2_new = .FALSE. !! Set to .TRUE. if you want CO2 downregulation version revised for CMIP6 6.1.11
675	!$OMP THREADPRIVATE(downregulation_co2_new)
676	REAL(r_std), SAVE :: downregulation_co2_baselevel = 380. !! CO2 base level (ppm)
677	!$OMP THREADPRIVATE(downregulation_co2_baselevel)
678	REAL(r_std), SAVE :: downregulation_co2_minimum = 280. !! CO2 value above which downregulation is taken into account
679	!$OMP THREADPRIVATE(downregulation_co2_minimum)
680
681	REAL(r_std), SAVE :: gb_ref = 1./25. !! Leaf bulk boundary layer resistance (s m-1)
682	!$OMP THREADPRIVATE(gb_ref)
683
684	! 3. Coefficients of equations
685
686	REAL(r_std), SAVE :: lai_level_depth = 0.15 !!
687	!$OMP THREADPRIVATE(lai_level_depth)
688	!
689	REAL(r_std), SAVE, DIMENSION(6) :: dew_veg_poly_coeff = & !! coefficients of the 5 degree polynomomial used
690	& (/ 0.887773, 0.205673, 0.110112, 0.014843, 0.000824, 0.000017 /) !! in the equation of coeff_dew_veg
691	!$OMP THREADPRIVATE(dew_veg_poly_coeff)
692	!
693	REAL(r_std), SAVE :: Oi=210000. !! Intercellular oxygen partial pressure (ubar)
694	!$OMP THREADPRIVATE(Oi)
695	!
696	! slowproc.f90
697	!
698
699	! 1. Scalar
700
701	INTEGER(i_std), SAVE :: veget_year_orig = 0 !! first year for landuse (number)
702	!$OMP THREADPRIVATE(veget_year_orig)
703
704	REAL(r_std), SAVE :: bulk_default = 1000.0 !! Default value for bulk density of soil (kg/m3)
705	!$OMP THREADPRIVATE(bulk_default)
706	REAL(r_std), SAVE :: min_vegfrac = 0.001 !! Minimal fraction of mesh a vegetation type can occupy (0-1, unitless)
707	!$OMP THREADPRIVATE(min_vegfrac)
708	REAL(r_std), SAVE :: frac_nobio_fixed_test_1 = 0.0 !! Value for frac_nobio for tests in 0-dim simulations (0-1, unitless)
709	!$OMP THREADPRIVATE(frac_nobio_fixed_test_1)
710
711	REAL(r_std), SAVE :: stempdiag_bid = 280. !! only needed for an initial LAI if there is no restart file
712	!$OMP THREADPRIVATE(stempdiag_bid)
713
714
715	!-----------------------------!
716	! STOMATE AND LPJ PARAMETERS !
717	!-----------------------------!
718
719
720	!
721	! lpj_constraints.f90
722	!
723
724	! 1. Scalar
725
726	REAL(r_std), SAVE :: too_long = 5. !! longest sustainable time without
727	!! regeneration (vernalization) (years)
728	!$OMP THREADPRIVATE(too_long)
729
730
731	!
732	! lpj_establish.f90
733	!
734
735	! 1. Scalar
736
737	REAL(r_std), SAVE :: estab_max_tree = 0.12 !! Maximum tree establishment rate (ind/m2/dt_stomate)
738	!$OMP THREADPRIVATE(estab_max_tree)
739	REAL(r_std), SAVE :: estab_max_grass = 0.12 !! Maximum grass establishment rate (ind/m2/dt_stomate)
740	!$OMP THREADPRIVATE(estab_max_grass)
741
742	! 3. Coefficients of equations
743
744	REAL(r_std), SAVE :: establish_scal_fact = 5. !!
745	!$OMP THREADPRIVATE(establish_scal_fact)
746	REAL(r_std), SAVE :: max_tree_coverage = 0.98 !! (0-1, unitless)
747	!$OMP THREADPRIVATE(max_tree_coverage)
748	REAL(r_std), SAVE :: ind_0_estab = 0.2 !! = ind_0 * 10.
749	!$OMP THREADPRIVATE(ind_0_estab)
750
751
752	!
753	! lpj_fire.f90
754	!
755
756	! 1. Scalar
757
758	REAL(r_std), SAVE :: tau_fire = 30. !! Time scale for memory of the fire index (days).
759	!$OMP THREADPRIVATE(tau_fire)
760	REAL(r_std), SAVE :: litter_crit = 200. !! Critical litter quantity for fire
761	!! below which iginitions extinguish
762	!! @tex $(gC m^{-2})$ @endtex
763	!$OMP THREADPRIVATE(litter_crit)
764	REAL(r_std), SAVE :: fire_resist_struct = 0.5 !!
765	!$OMP THREADPRIVATE(fire_resist_struct)
766	! 2. Arrays
767
768	REAL(r_std), SAVE, DIMENSION(nparts) :: co2frac = & !! The fraction of the different biomass
769	& (/ .95, .95, 0., 0.3, 0., 0., .95, .95 /) !! compartments emitted to the atmosphere
770	!$OMP THREADPRIVATE(co2frac) !! when burned (unitless, 0-1)
771
772	! 3. Coefficients of equations
773
774	REAL(r_std), SAVE, DIMENSION(3) :: bcfrac_coeff = (/ .3, 1.3, 88.2 /) !! (unitless)
775	!$OMP THREADPRIVATE(bcfrac_coeff)
776	REAL(r_std), SAVE, DIMENSION(4) :: firefrac_coeff = (/ 0.45, 0.8, 0.6, 0.13 /) !! (unitless)
777	!$OMP THREADPRIVATE(firefrac_coeff)
778
779	!
780	! lpj_gap.f90
781	!
782
783	! 1. Scalar
784
785	REAL(r_std), SAVE :: ref_greff = 0.035 !! Asymptotic maximum mortality rate
786	!! @tex $(year^{-1})$ @endtex
787	!$OMP THREADPRIVATE(ref_greff)
788
789	!
790	! lpj_light.f90
791	!
792
793	! 1. Scalar
794
795	LOGICAL, SAVE :: annual_increase = .TRUE. !! for diagnosis of fpc increase, compare today's fpc to last year's maximum (T) or
796	!! to fpc of last time step (F)? (true/false)
797	!$OMP THREADPRIVATE(annual_increase)
798	REAL(r_std), SAVE :: min_cover = 0.05 !! For trees, minimum fraction of crown area occupied
799	!! (due to its branches etc.) (0-1, unitless)
800	!! This means that only a small fraction of its crown area
801	!! can be invaded by other trees.
802	!$OMP THREADPRIVATE(min_cover)
803	!
804	! lpj_pftinout.f90
805	!
806
807	! 1. Scalar
808
809	REAL(r_std), SAVE :: min_avail = 0.01 !! minimum availability
810	!$OMP THREADPRIVATE(min_avail)
811	REAL(r_std), SAVE :: ind_0 = 0.02 !! initial density of individuals
812	!$OMP THREADPRIVATE(ind_0)
813	! 3. Coefficients of equations
814
815	REAL(r_std), SAVE :: RIP_time_min = 1.25 !! test whether the PFT has been eliminated lately (years)
816	!$OMP THREADPRIVATE(RIP_time_min)
817	REAL(r_std), SAVE :: npp_longterm_init = 10. !! Initialisation value for npp_longterm (gC.m^{-2}.year^{-1})
818	!$OMP THREADPRIVATE(npp_longterm_init)
819	REAL(r_std), SAVE :: everywhere_init = 0.05 !!
820	!$OMP THREADPRIVATE(everywhere_init)
821
822
823	!
824	! stomate_alloc.f90
825	!
826
827	! 0. Constants
828
829	REAL(r_std), PARAMETER :: max_possible_lai = 10. !! (m^2.m^{-2})
830	REAL(r_std), PARAMETER :: Nlim_Q10 = 10. !!
831
832	! 1. Scalar
833
834	LOGICAL, SAVE :: ok_minres = .TRUE. !! [DISPENSABLE] Do we try to reach a minimum reservoir even if
835	!! we are severely stressed? (true/false)
836	!$OMP THREADPRIVATE(ok_minres)
837	REAL(r_std), SAVE :: reserve_time_tree = 30. !! Maximum number of days during which
838	!! carbohydrate reserve may be used for
839	!! trees (days)
840	!$OMP THREADPRIVATE(reserve_time_tree)
841	REAL(r_std), SAVE :: reserve_time_grass = 20. !! Maximum number of days during which
842	!! carbohydrate reserve may be used for
843	!! grasses (days)
844	!$OMP THREADPRIVATE(reserve_time_grass)
845
846	REAL(r_std), SAVE :: f_fruit = 0.1 !! Default fruit allocation (0-1, unitless)
847	!$OMP THREADPRIVATE(f_fruit)
848	REAL(r_std), SAVE :: alloc_sap_above_grass = 1.0 !! fraction of sapwood allocation above ground
849	!! for grass (0-1, unitless)
850	!$OMP THREADPRIVATE(alloc_sap_above_grass)
851	REAL(r_std), SAVE :: min_LtoLSR = 0.2 !! Prescribed lower bounds for leaf
852	!! allocation (0-1, unitless)
853	!$OMP THREADPRIVATE(min_LtoLSR)
854	REAL(r_std), SAVE :: max_LtoLSR = 0.5 !! Prescribed upper bounds for leaf
855	!! allocation (0-1, unitless)
856	!$OMP THREADPRIVATE(max_LtoLSR)
857	REAL(r_std), SAVE :: z_nitrogen = 0.2 !! Curvature of the root profile (m)
858	!$OMP THREADPRIVATE(z_nitrogen)
859
860	! 3. Coefficients of equations
861
862	REAL(r_std), SAVE :: Nlim_tref = 25. !! (C)
863	!$OMP THREADPRIVATE(Nlim_tref)
864
865
866	!
867	! stomate_data.f90
868	!
869
870	! 1. Scalar
871
872	! 1.1 Parameters for the pipe model
873
874	REAL(r_std), SAVE :: pipe_tune1 = 100.0 !! crown area = pipe_tune1. stem diameter**(1.6) (Reinicke's theory) (unitless)
875	!$OMP THREADPRIVATE(pipe_tune1)
876	REAL(r_std), SAVE :: pipe_tune2 = 40.0 !! height=pipe_tune2 * diameter**pipe_tune3 (unitless)
877	!$OMP THREADPRIVATE(pipe_tune2)
878	REAL(r_std), SAVE :: pipe_tune3 = 0.5 !! height=pipe_tune2 * diameter**pipe_tune3 (unitless)
879	!$OMP THREADPRIVATE(pipe_tune3)
880	REAL(r_std), SAVE :: pipe_tune4 = 0.3 !! needed for stem diameter (unitless)
881	!$OMP THREADPRIVATE(pipe_tune4)
882	REAL(r_std), SAVE :: pipe_density = 2.e5 !! Density
883	!$OMP THREADPRIVATE(pipe_density)
884	REAL(r_std), SAVE :: pipe_k1 = 8.e3 !! one more SAVE
885	!$OMP THREADPRIVATE(pipe_k1)
886	REAL(r_std), SAVE :: pipe_tune_exp_coeff = 1.6 !! pipe tune exponential coeff (unitless)
887	!$OMP THREADPRIVATE(pipe_tune_exp_coeff)
888
889	! 1.2 climatic parameters
890
891	REAL(r_std), SAVE :: precip_crit = 100. !! minimum precip, in (mm/year)
892	!$OMP THREADPRIVATE(precip_crit)
893	REAL(r_std), SAVE :: gdd_crit_estab = 150. !! minimum gdd for establishment of saplings
894	!$OMP THREADPRIVATE(gdd_crit_estab)
895	REAL(r_std), SAVE :: fpc_crit = 0.95 !! critical fpc, needed for light competition and establishment (0-1, unitless)
896	!$OMP THREADPRIVATE(fpc_crit)
897
898	! 1.3 sapling characteristics
899
900	REAL(r_std), SAVE :: alpha_grass = 0.5 !! alpha coefficient for grasses (unitless)
901	!$OMP THREADPRIVATE(alpha_grass)
902	REAL(r_std), SAVE :: alpha_tree = 1. !! alpha coefficient for trees (unitless)
903	!$OMP THREADPRIVATE(alpha_tree)
904	REAL(r_std), SAVE :: mass_ratio_heart_sap = 3. !! mass ratio (heartwood+sapwood)/sapwood (unitless)
905	!$OMP THREADPRIVATE(mass_ratio_heart_sap)
906
907	! 1.4 time scales for phenology and other processes (in days)
908
909	REAL(r_std), SAVE :: tau_hum_month = 20. !! (days)
910	!$OMP THREADPRIVATE(tau_hum_month)
911	REAL(r_std), SAVE :: tau_hum_week = 7. !! (days)
912	!$OMP THREADPRIVATE(tau_hum_week)
913	REAL(r_std), SAVE :: tau_t2m_month = 20. !! (days)
914	!$OMP THREADPRIVATE(tau_t2m_month)
915	REAL(r_std), SAVE :: tau_t2m_week = 7. !! (days)
916	!$OMP THREADPRIVATE(tau_t2m_week)
917	REAL(r_std), SAVE :: tau_tsoil_month = 20. !! (days)
918	!$OMP THREADPRIVATE(tau_tsoil_month)
919	REAL(r_std), SAVE :: tau_soilhum_month = 20. !! (days)
920	!$OMP THREADPRIVATE(tau_soilhum_month)
921	REAL(r_std), SAVE :: tau_gpp_week = 7. !! (days)
922	!$OMP THREADPRIVATE(tau_gpp_week)
923	REAL(r_std), SAVE :: tau_gdd = 40. !! (days)
924	!$OMP THREADPRIVATE(tau_gdd)
925	REAL(r_std), SAVE :: tau_ngd = 50. !! (days)
926	!$OMP THREADPRIVATE(tau_ngd)
927	REAL(r_std), SAVE :: coeff_tau_longterm = 3. !! (unitless)
928	!$OMP THREADPRIVATE(coeff_tau_longterm)
929	REAL(r_std), SAVE :: tau_longterm_max !! (days)
930	!$OMP THREADPRIVATE(tau_longterm_max)
931
932	! 3. Coefficients of equations
933
934	REAL(r_std), SAVE :: bm_sapl_carbres = 5. !!
935	!$OMP THREADPRIVATE(bm_sapl_carbres)
936	REAL(r_std), SAVE :: bm_sapl_sapabove = 0.5 !!
937	!$OMP THREADPRIVATE(bm_sapl_sapabove)
938	REAL(r_std), SAVE :: bm_sapl_heartabove = 2. !!
939	!$OMP THREADPRIVATE(bm_sapl_heartabove)
940	REAL(r_std), SAVE :: bm_sapl_heartbelow = 2. !!
941	!$OMP THREADPRIVATE(bm_sapl_heartbelow)
942	REAL(r_std), SAVE :: init_sapl_mass_leaf_nat = 0.1 !!
943	!$OMP THREADPRIVATE(init_sapl_mass_leaf_nat)
944	REAL(r_std), SAVE :: init_sapl_mass_leaf_agri = 1. !!
945	!$OMP THREADPRIVATE(init_sapl_mass_leaf_agri)
946	REAL(r_std), SAVE :: init_sapl_mass_carbres = 5. !!
947	!$OMP THREADPRIVATE(init_sapl_mass_carbres)
948	REAL(r_std), SAVE :: init_sapl_mass_root = 0.1 !!
949	!$OMP THREADPRIVATE(init_sapl_mass_root)
950	REAL(r_std), SAVE :: init_sapl_mass_fruit = 0.3 !!
951	!$OMP THREADPRIVATE(init_sapl_mass_fruit)
952	REAL(r_std), SAVE :: cn_sapl_init = 0.5 !!
953	!$OMP THREADPRIVATE(cn_sapl_init)
954	REAL(r_std), SAVE :: migrate_tree = 10.*1.E3 !!
955	!$OMP THREADPRIVATE(migrate_tree)
956	REAL(r_std), SAVE :: migrate_grass = 10.*1.E3 !!
957	!$OMP THREADPRIVATE(migrate_grass)
958	REAL(r_std), SAVE :: lai_initmin_tree = 0.3 !!
959	!$OMP THREADPRIVATE(lai_initmin_tree)
960	REAL(r_std), SAVE :: lai_initmin_grass = 0.1 !!
961	!$OMP THREADPRIVATE(lai_initmin_grass)
962	REAL(r_std), SAVE, DIMENSION(2) :: dia_coeff = (/ 4., 0.5 /) !!
963	!$OMP THREADPRIVATE(dia_coeff)
964	REAL(r_std), SAVE, DIMENSION(2) :: maxdia_coeff =(/ 100., 0.01/) !!
965	!$OMP THREADPRIVATE(maxdia_coeff)
966	REAL(r_std), SAVE, DIMENSION(4) :: bm_sapl_leaf = (/ 4., 4., 0.8, 5./) !!
967	!$OMP THREADPRIVATE(bm_sapl_leaf)
968
969
970
971	!
972	! stomate_litter.f90
973	!
974
975	! 0. Constants
976
977	REAL(r_std), PARAMETER :: Q10 = 10. !!
978
979	! 1. Scalar
980
981	REAL(r_std), SAVE :: z_decomp = 0.2 !! Maximum depth for soil decomposer's activity (m)
982	!$OMP THREADPRIVATE(z_decomp)
983
984	! 2. Arrays
985
986	REAL(r_std), SAVE :: frac_soil_struct_aa = 0.55 !! corresponding to frac_soil(istructural,iactive,iabove)
987	!$OMP THREADPRIVATE(frac_soil_struct_aa)
988	REAL(r_std), SAVE :: frac_soil_struct_ab = 0.45 !! corresponding to frac_soil(istructural,iactive,ibelow)
989	!$OMP THREADPRIVATE(frac_soil_struct_ab)
990	REAL(r_std), SAVE :: frac_soil_struct_sa = 0.7 !! corresponding to frac_soil(istructural,islow,iabove)
991	!$OMP THREADPRIVATE(frac_soil_struct_sa)
992	REAL(r_std), SAVE :: frac_soil_struct_sb = 0.7 !! corresponding to frac_soil(istructural,islow,ibelow)
993	!$OMP THREADPRIVATE(frac_soil_struct_sb)
994	REAL(r_std), SAVE :: frac_soil_metab_aa = 0.45 !! corresponding to frac_soil(imetabolic,iactive,iabove)
995	!$OMP THREADPRIVATE(frac_soil_metab_aa)
996	REAL(r_std), SAVE :: frac_soil_metab_ab = 0.45 !! corresponding to frac_soil(imetabolic,iactive,ibelow)
997	!$OMP THREADPRIVATE(frac_soil_metab_ab)
998	REAL(r_std), SAVE, DIMENSION(nparts) :: CN = & !! C/N ratio of each plant pool (0-100, unitless)
999	& (/ 40., 40., 40., 40., 40., 40., 40., 40. /)
1000	!$OMP THREADPRIVATE(CN)
1001	REAL(r_std), SAVE, DIMENSION(nparts) :: LC = & !! Lignin/C ratio of different plant parts (0,22-0,35, unitless)
1002	& (/ 0.22, 0.35, 0.35, 0.35, 0.35, 0.22, 0.22, 0.22 /)
1003	!$OMP THREADPRIVATE(LC)
1004
1005	! 3. Coefficients of equations
1006
1007	REAL(r_std), SAVE :: metabolic_ref_frac = 0.85 !! used by litter and soilcarbon (0-1, unitless)
1008	!$OMP THREADPRIVATE(metabolic_ref_frac)
1009	REAL(r_std), SAVE :: metabolic_LN_ratio = 0.018 !! (0-1, unitless)
1010	!$OMP THREADPRIVATE(metabolic_LN_ratio)
1011	REAL(r_std), SAVE :: tau_metabolic = 0.066 !!
1012	!$OMP THREADPRIVATE(tau_metabolic)
1013	REAL(r_std), SAVE :: tau_struct = 0.245 !!
1014	!$OMP THREADPRIVATE(tau_struct)
1015	REAL(r_std), SAVE :: soil_Q10 = 0.69 !!= ln 2
1016	!$OMP THREADPRIVATE(soil_Q10)
1017	REAL(r_std), SAVE :: tsoil_ref = 30. !!
1018	!$OMP THREADPRIVATE(tsoil_ref)
1019	REAL(r_std), SAVE :: litter_struct_coef = 3. !!
1020	!$OMP THREADPRIVATE(litter_struct_coef)
1021	REAL(r_std), SAVE, DIMENSION(3) :: moist_coeff = (/ 1.1, 2.4, 0.29 /) !!
1022	!$OMP THREADPRIVATE(moist_coeff)
1023	REAL(r_std), SAVE :: moistcont_min = 0.25 !! minimum soil wetness to limit the heterotrophic respiration
1024	!$OMP THREADPRIVATE(moistcont_min)
1025
1026	! 4. Moyano et la. 2012 Biogeosciences
1027
1028	LOGICAL, SAVE :: ok_moyano_soilhumsat = .FALSE. !! Use soilhumSAT and Moyano formulation for control_moist
1029	!$OMP THREADPRIVATE(ok_moyano_soilhumsat)
1030	LOGICAL, SAVE :: ok_orga = .TRUE. !! Do we use also the equation designed for organic soils by Moyano et al.
1031	!! for control_moist
1032	!$OMP THREADPRIVATE(ok_orga)
1033	REAL(r_std), SAVE :: beta1 = -0.26 !! 1st(Beta1*M) term of Moyano' PRSR model 2
1034	!! for fraction of saturation Beta1= [-0.28,-0.24]
1035	!$OMP THREADPRIVATE(beta1)
1036	REAL(r_std), SAVE :: beta2 = 0.32 !! 2nd(Beta2*M^2) term of Moyano' PRSR model 2
1037	!! for fraction of saturation Beta2= [0.28,0.36]
1038	!$OMP THREADPRIVATE(beta2)
1039	REAL(r_std), SAVE :: beta3 = -0.15 !! 3rd(Beta3*M^3) term of Moyano' PRSR model 2
1040	!! for fraction of saturation Beta3= [-0.18,-0.12]
1041	!$OMP THREADPRIVATE(beta3)
1042	REAL(r_std), SAVE :: beta1_orga = -0.67 !! 1st(Beta1*M) term of Moyano' PRSR model 3
1043	!! for fraction of saturation Beta1= [-0.65,-0.69]
1044	!$OMP THREADPRIVATE(beta1_orga)
1045	REAL(r_std), SAVE :: beta2_orga = 1.08 !! 2nd(Beta2*M^2) term of Moyano' PRSR model 3
1046	!! for fraction of saturation Beta2= [1.03,1.13]
1047	!$OMP THREADPRIVATE(beta2_orga)
1048	REAL(r_std), SAVE :: beta3_orga = -0.57 !! 3rd(Beta3*M^3) term of Moyano' PRSR model 3
1049	!! for fraction of saturation Beta3= [-0.54,-0.60]
1050	!$OMP THREADPRIVATE(beta3_orga)
1051	REAL(r_std), SAVE :: beta4 = 0.08 !! 4th(Beta4*clay) term of Moyano' PRSR model 2
1052	!! for fraction of saturation Beta4= [0.07,0.09]
1053	!$OMP THREADPRIVATE(beta4)
1054	REAL(r_std), SAVE :: beta5 = -0.09 !! 5th(Beta5Mclay) term of Moyano' PRSR model 2
1055	!! for fraction of saturation Beta5= [-0.10,-0.08]
1056	!$OMP THREADPRIVATE(beta5)
1057	REAL(r_std), SAVE :: beta6 = 0.57 !! 6th(Beta6*SOC) term of Moyano' PRSR model 2
1058	!! for fraction of saturation Beta6= [0.53,0.61]
1059	!$OMP THREADPRIVATE(beta6)
1060	REAL(r_std), SAVE :: intercept = 1.059 !! intercept term of Moyano' PRSR model 2
1061	!! for fraction of saturation intercept= [1.056,1.062]
1062	!$OMP THREADPRIVATE(intercept)
1063	REAL(r_std), SAVE :: intercept_orga = 1.134 !! intercept term of Moyano' PRSR model 3
1064	!! for fraction of saturation intercept= [1.131,1.137]
1065	!$OMP THREADPRIVATE(intercept_orga)
1066	REAL(r_std), SAVE :: SRo = 1.0 !! Initial respiration value (SR0) arbitrary defined at 1.0
1067	!$OMP THREADPRIVATE(SRo)
1068	REAL(r_std), SAVE :: moistcontSAT_min = 0.0 !! minimum soil wetness to limit the heterotrophic respiration
1069	!$OMP THREADPRIVATE(moistcontSAT_min)
1070	REAL(r_std), SAVE :: soilheight = 0.10 !! soil height in meter to converte totalSOC
1071	!! from gC/m2soil to gC/gsoil [0.10, 0.20, 0.30, 0.50, 1m]
1072	!$OMP THREADPRIVATE(soilheight)
1073	REAL(r_std), SAVE :: Cini_Moyano = 1000_r_std !!Initial carbon content for Moyano equation (kgC/m3)
1074	!$OMP THREADPRIVATE(Cini_Moyano)
1075	REAL(r_std), SAVE :: Litterini_Moyano = 1000_r_std !!Initial litter carbon content for Moyano equation (kgC/m3)
1076	!$OMP THREADPRIVATE(Litterini_Moyano)
1077	REAL(r_std), SAVE :: min_carbon_moyano = 0.01 !! Minimum carbon concentration in the database
1078	!! used by Moyano et al (gC/gSoil)
1079	!$OMP THREADPRIVATE(min_carbon_moyano)
1080	REAL(r_std), SAVE :: max_carbon_moyano = 0.35 !! Maximum carbon concentration in the database
1081	!! used by Moyano et al (gC/gSoil)
1082	!$OMP THREADPRIVATE(max_carbon_moyano)
1083	REAL(r_std), SAVE :: limit_carbon_orga = 0.06 !! Minimum carbon concentration in the database
1084	!! for organic soil used by Moyano et al (gC/gSoil)
1085	!$OMP THREADPRIVATE(limit_carbon_orga)
1086	REAL(r_std), SAVE :: min_clay_moyano = 0.03 !! Minimum clay fraction in the database used by Moyano et al (unitless)
1087	!$OMP THREADPRIVATE(min_clay_moyano)
1088	REAL(r_std), SAVE :: max_clay_moyano = 0.58 !! Maximum clay fraction in the database used by Moyano et al (unitless)
1089	!$OMP THREADPRIVATE(max_clay_moyano)
1090	!
1091	! stomate_lpj.f90
1092	!
1093
1094	! 1. Scalar
1095
1096	REAL(r_std), SAVE :: frac_turnover_daily = 0.55 !! (0-1, unitless)
1097	!$OMP THREADPRIVATE(frac_turnover_daily)
1098
1099
1100	!
1101	! stomate_npp.f90
1102	!
1103
1104	! 1. Scalar
1105
1106	REAL(r_std), SAVE :: tax_max = 0.8 !! Maximum fraction of allocatable biomass used
1107	!! for maintenance respiration (0-1, unitless)
1108	!$OMP THREADPRIVATE(tax_max)
1109
1110
1111	!
1112	! stomate_phenology.f90
1113	!
1114
1115	! 1. Scalar
1116
1117	REAL(r_std), SAVE :: min_growthinit_time = 300. !! minimum time since last beginning of a growing season (days)
1118	!$OMP THREADPRIVATE(min_growthinit_time)
1119	REAL(r_std), SAVE :: moiavail_always_tree = 1.0 !! moisture monthly availability above which moisture tendency doesn't matter
1120	!! - for trees (0-1, unitless)
1121	!$OMP THREADPRIVATE(moiavail_always_tree)
1122	REAL(r_std), SAVE :: moiavail_always_grass = 0.6 !! moisture monthly availability above which moisture tendency doesn't matter
1123	!! - for grass (0-1, unitless)
1124	!$OMP THREADPRIVATE(moiavail_always_grass)
1125	REAL(r_std), SAVE :: t_always !! monthly temp. above which temp. tendency doesn't matter
1126	!$OMP THREADPRIVATE(t_always)
1127	REAL(r_std), SAVE :: t_always_add = 10. !! monthly temp. above which temp. tendency doesn't matter (C)
1128	!$OMP THREADPRIVATE(t_always_add)
1129
1130	! 3. Coefficients of equations
1131
1132	REAL(r_std), SAVE :: gddncd_ref = 603. !!
1133	!$OMP THREADPRIVATE(gddncd_ref)
1134	REAL(r_std), SAVE :: gddncd_curve = 0.0091 !!
1135	!$OMP THREADPRIVATE(gddncd_curve)
1136	REAL(r_std), SAVE :: gddncd_offset = 64. !!
1137	!$OMP THREADPRIVATE(gddncd_offset)
1138
1139
1140	!
1141	! stomate_prescribe.f90
1142	!
1143
1144	! 3. Coefficients of equations
1145
1146	REAL(r_std), SAVE :: bm_sapl_rescale = 40. !!
1147	!$OMP THREADPRIVATE(bm_sapl_rescale)
1148
1149
1150	!
1151	! stomate_resp.f90
1152	!
1153
1154	! 3. Coefficients of equations
1155
1156	REAL(r_std), SAVE :: maint_resp_min_vmax = 0.3 !!
1157	!$OMP THREADPRIVATE(maint_resp_min_vmax)
1158	REAL(r_std), SAVE :: maint_resp_coeff = 1.4 !!
1159	!$OMP THREADPRIVATE(maint_resp_coeff)
1160
1161
1162	!
1163	! stomate_soilcarbon.f90
1164	!
1165
1166	! 2. Arrays
1167
1168	! 2.1 frac_carb_coefficients
1169
1170	REAL(r_std), SAVE :: frac_carb_ap = 0.004 !! from active pool: depends on clay content (0-1, unitless)
1171	!! corresponding to frac_carb(:,iactive,ipassive)
1172	!$OMP THREADPRIVATE(frac_carb_ap)
1173	REAL(r_std), SAVE :: frac_carb_sa = 0.42 !! from slow pool (0-1, unitless)
1174	!! corresponding to frac_carb(:,islow,iactive)
1175	!$OMP THREADPRIVATE(frac_carb_sa)
1176	REAL(r_std), SAVE :: frac_carb_sp = 0.03 !! from slow pool (0-1, unitless)
1177	!! corresponding to frac_carb(:,islow,ipassive)
1178	!$OMP THREADPRIVATE(frac_carb_sp)
1179	REAL(r_std), SAVE :: frac_carb_pa = 0.45 !! from passive pool (0-1, unitless)
1180	!! corresponding to frac_carb(:,ipassive,iactive)
1181	!$OMP THREADPRIVATE(frac_carb_pa)
1182	REAL(r_std), SAVE :: frac_carb_ps = 0.0 !! from passive pool (0-1, unitless)
1183	!! corresponding to frac_carb(:,ipassive,islow)
1184	!$OMP THREADPRIVATE(frac_carb_ps)
1185
1186	! 3. Coefficients of equations
1187
1188	REAL(r_std), SAVE :: active_to_pass_clay_frac = 0.68 !! (0-1, unitless)
1189	!$OMP THREADPRIVATE(active_to_pass_clay_frac)
1190	!! residence times in carbon pools (days)
1191	REAL(r_std), SAVE :: carbon_tau_iactive = 0.149 !! residence times in active pool (days)
1192	!$OMP THREADPRIVATE(carbon_tau_iactive)
1193	REAL(r_std), SAVE :: carbon_tau_islow = 7.0 !! residence times in slow pool (days)
1194	!$OMP THREADPRIVATE(carbon_tau_islow)
1195	REAL(r_std), SAVE :: carbon_tau_ipassive = 300. !! residence times in passive pool (days)
1196	!$OMP THREADPRIVATE(carbon_tau_ipassive)
1197	REAL(r_std), SAVE, DIMENSION(3) :: flux_tot_coeff = (/ 1.2, 1.4, .75/)
1198	!$OMP THREADPRIVATE(flux_tot_coeff)
1199
1200	!
1201	! stomate_turnover.f90
1202	!
1203
1204	! 3. Coefficients of equations
1205
1206	REAL(r_std), SAVE :: new_turnover_time_ref = 20. !!(days)
1207	!$OMP THREADPRIVATE(new_turnover_time_ref)
1208	REAL(r_std), SAVE :: leaf_age_crit_tref = 20. !! (C)
1209	!$OMP THREADPRIVATE(leaf_age_crit_tref)
1210	REAL(r_std), SAVE, DIMENSION(3) :: leaf_age_crit_coeff = (/ 1.5, 0.75, 10./) !! (unitless)
1211	!$OMP THREADPRIVATE(leaf_age_crit_coeff)
1212
1213
1214	!
1215	! stomate_vmax.f90
1216	!
1217
1218	! 1. Scalar
1219
1220	REAL(r_std), SAVE :: vmax_offset = 0.3 !! minimum leaf efficiency (unitless)
1221	!$OMP THREADPRIVATE(vmax_offset)
1222	REAL(r_std), SAVE :: leafage_firstmax = 0.03 !! relative leaf age at which efficiency
1223	!! reaches 1 (unitless)
1224	!$OMP THREADPRIVATE(leafage_firstmax)
1225	REAL(r_std), SAVE :: leafage_lastmax = 0.5 !! relative leaf age at which efficiency
1226	!! falls below 1 (unitless)
1227	!$OMP THREADPRIVATE(leafage_lastmax)
1228	REAL(r_std), SAVE :: leafage_old = 1. !! relative leaf age at which efficiency
1229	!! reaches its minimum (vmax_offset)
1230	!! (unitless)
1231	!$OMP THREADPRIVATE(leafage_old)
1232	!
1233	! stomate_season.f90
1234	!
1235
1236	! 1. Scalar
1237
1238	REAL(r_std), SAVE :: gppfrac_dormance = 0.2 !! report maximal GPP/GGP_max for dormance (0-1, unitless)
1239	!$OMP THREADPRIVATE(gppfrac_dormance)
1240	REAL(r_std), SAVE :: tau_climatology = 20. !! tau for "climatologic variables (years)
1241	!$OMP THREADPRIVATE(tau_climatology)
1242	REAL(r_std), SAVE :: hvc1 = 0.019 !! parameters for herbivore activity (unitless)
1243	!$OMP THREADPRIVATE(hvc1)
1244	REAL(r_std), SAVE :: hvc2 = 1.38 !! parameters for herbivore activity (unitless)
1245	!$OMP THREADPRIVATE(hvc2)
1246	REAL(r_std), SAVE :: leaf_frac_hvc = 0.33 !! leaf fraction (0-1, unitless)
1247	!$OMP THREADPRIVATE(leaf_frac_hvc)
1248	REAL(r_std), SAVE :: tlong_ref_max = 303.1 !! maximum reference long term temperature (K)
1249	!$OMP THREADPRIVATE(tlong_ref_max)
1250	REAL(r_std), SAVE :: tlong_ref_min = 253.1 !! minimum reference long term temperature (K)
1251	!$OMP THREADPRIVATE(tlong_ref_min)
1252
1253	! 3. Coefficients of equations
1254
1255	REAL(r_std), SAVE :: ncd_max_year = 3.
1256	!$OMP THREADPRIVATE(ncd_max_year)
1257	REAL(r_std), SAVE :: gdd_threshold = 5.
1258	!$OMP THREADPRIVATE(gdd_threshold)
1259	REAL(r_std), SAVE :: green_age_ever = 2.
1260	!$OMP THREADPRIVATE(green_age_ever)
1261	REAL(r_std), SAVE :: green_age_dec = 0.5
1262	!$OMP THREADPRIVATE(green_age_dec)
1263
1264	END MODULE constantes_var

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source: branches/ORCHIDEE_2_2/ORCHIDEE/src_parameters/constantes_var.f90

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