1 | !!---------------------------------------------------------------------- |
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2 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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3 | !! $Id$ |
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4 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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5 | !!---------------------------------------------------------------------- |
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6 | |
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7 | SUBROUTINE obs_level_search( kgrd, pgrddep, kobs, pobsdep, kobsk ) |
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8 | !!---------------------------------------------------------------------- |
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9 | !! *** ROUTINE obs_level_search *** |
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10 | !! |
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11 | !! ** Purpose : Search levels to find matching level to observed depth |
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12 | !! |
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13 | !! ** Method : Straightforward search |
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14 | !! |
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15 | !! ** Action : Will return level associated with T-point below the obs |
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16 | !! depth, except when observation is in the top box will |
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17 | !! return level 2. Also, if obs depth greater than depth |
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18 | !! of last wet T-point (kpk-1) will return level kpk. |
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19 | !! |
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20 | !! History : |
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21 | !! ! 2001-11 (N. Daget, A. Weaver) |
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22 | !! ! 2006-03 (A. Weaver) NEMOVAR migration. |
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23 | !! ! 2006-05 (K. Mogensen) Moved to to separate routine. |
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24 | !! ! 2006-10 (A. Weaver) Cleanup |
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25 | !! ! 2008-10 (K. Mogensen) Remove assumptions on grid. |
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26 | !!---------------------------------------------------------------------- |
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27 | |
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28 | !! * Arguments |
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29 | INTEGER, INTENT(IN) :: kgrd ! Number of gridpoints |
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30 | REAL(KIND=wp), DIMENSION(kgrd), INTENT(INOUT) :: & |
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31 | & pgrddep ! Depths of gridpoints |
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32 | INTEGER, INTENT(IN) :: & |
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33 | & kobs ! Number of observations |
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34 | REAL(KIND=wp), DIMENSION(kobs), INTENT(INOUT) :: & |
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35 | & pobsdep ! Depths of observations |
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36 | INTEGER ,DIMENSION(kobs), INTENT(OUT) :: & |
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37 | & kobsk ! Level indices of observations |
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38 | |
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39 | !! * Local declarations |
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40 | INTEGER :: ji |
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41 | INTEGER :: jk |
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42 | |
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43 | !------------------------------------------------------------------------ |
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44 | ! Search levels for each observations to find matching level |
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45 | !------------------------------------------------------------------------ |
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46 | DO ji = 1, kobs |
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47 | kobsk(ji) = 1 |
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48 | depk: DO jk = 2, kgrd-1 |
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49 | IF ( pgrddep(jk) > pobsdep(ji) ) EXIT depk |
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50 | END DO depk |
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51 | kobsk(ji) = jk |
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52 | END DO |
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53 | |
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54 | END SUBROUTINE obs_level_search |
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