| 1 | ;+ |
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| 2 | ; |
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| 3 | ; @file_comments |
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| 4 | ; compute the 3D e3t from e3t and e3t_ps |
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| 5 | ; |
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| 6 | ; @categories |
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| 7 | ; diagnostics |
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| 8 | ; |
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| 9 | ; @keyword e1 {default=0}{type=scalar: 0 or 1} |
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| 10 | ; activate to compute e1t * e3t instead of e3t |
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| 11 | ; note that of both keywords e1 and e2 are acticated we compute e1t * e2t * e3t instead of e3t |
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| 12 | ; |
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| 13 | ; @keyword e2 {default=0}{type=scalar: 0 or 1} |
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| 14 | ; activate to compute e2t * e3t instead of e3t |
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| 15 | ; note that of both keywords e1 and e2 are acticated we compute e1t * e2t * e3t instead of e3t |
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| 16 | ; |
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| 17 | ; @returns |
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| 18 | ; e3t |
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| 19 | ; |
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| 20 | ; @uses |
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| 21 | ; cm_4mesh.pro |
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| 22 | ; |
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| 23 | ; @history |
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| 24 | ; Sebastien Masson, Jan 2011 |
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| 25 | ; |
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| 26 | ; @version |
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| 27 | ; $Id$ |
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| 28 | ; |
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| 29 | ;- |
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| 30 | function e3t_3d, e1 = e1, e2 = e2, fstx = fstx, lstx = lstx, fsty = fsty, lsty = lsty |
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| 31 | ; |
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| 32 | compile_opt idl2, strictarrsubs |
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| 33 | ; |
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| 34 | @cm_4mesh |
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| 35 | ; |
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| 36 | IF n_elements(fstx) EQ 0 THEN fstx = firstxt |
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| 37 | IF n_elements(lstx) EQ 0 THEN lstx = lastxt |
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| 38 | IF n_elements(fsty) EQ 0 THEN fsty = firstyt |
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| 39 | IF n_elements(lsty) EQ 0 THEN lsty = lastyt |
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| 40 | nx = lstx - fstx + 1 |
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| 41 | ny = lsty - fsty + 1 |
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| 42 | ; |
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| 43 | CASE 1 OF |
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| 44 | keyword_set(e1) AND keyword_set(e2):arr2d = e1t[fstx:lstx, fsty:lsty] * e2t[fstx:lstx, fsty:lsty] |
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| 45 | keyword_set(e1) :arr2d = e1t[fstx:lstx, fsty:lsty] |
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| 46 | keyword_set(e2):arr2d = e2t[fstx:lstx, fsty:lsty] |
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| 47 | ELSE:arr2d = replicate(1., nx*ny) |
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| 48 | ENDCASE |
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| 49 | e3t3d = arr2d[*] # e3t[firstzt:lastzt] |
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| 50 | e3t3d = reform(e3t3d, nx, ny, nzt, /overwrite) |
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| 51 | ; |
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| 52 | IF keyword_set(key_partialstep) THEN BEGIN |
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| 53 | ; Change bottom values with e3t_ps |
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| 54 | ; level of the bottom of the ocean |
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| 55 | bottom = total(tmask[fstx:lstx, fsty:lsty, *], 3) |
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| 56 | bottom2 = long(temporary(bottom)) - firstzt |
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| 57 | bottom = bottom2 - 1L |
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| 58 | ok = where(bottom GE 0 AND bottom LT nzt) |
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| 59 | ok2 = where(bottom2 GE 0 AND bottom2 LT nzt) |
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| 60 | ; apply e3t_ps to e3t_3D at the bottom of the ocean |
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| 61 | IF ok[0] NE -1 THEN BEGIN |
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| 62 | ; the bottom of the ocean in 3D index is: |
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| 63 | bottom = (lindgen(nx*ny))[ok ] + nx*ny*(temporary(bottom ))[ok ] |
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| 64 | e3t3d[temporary(bottom )] = arr2d[ok ] * (e3t_ps[fstx:lstx, fsty:lsty])[ok ] |
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| 65 | ENDIF |
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| 66 | IF ok2[0] NE -1 THEN BEGIN |
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| 67 | bottom2 = (lindgen(nx*ny))[ok2] + nx*ny*(temporary(bottom2))[ok2] |
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| 68 | e3t3d[temporary(bottom2)] = arr2d[ok2] * (e3t_ps[fstx:lstx, fsty:lsty])[ok2] |
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| 69 | ENDIF |
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| 70 | ; |
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| 71 | ENDIF |
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| 72 | ; |
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| 73 | return, e3t3d |
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| 74 | END |
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| 75 | |
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