| 1 | ! Copyright (c) 2009, Centre National de la Recherche Scientifique |
|---|
| 2 | ! All rights reserved. |
|---|
| 3 | ! $Revision: 88 $, $Date: 2013-11-13 15:08:38 +0100 (mer. 13 nov. 2013) $ |
|---|
| 4 | ! $URL: http://cfmip-obs-sim.googlecode.com/svn/stable/v1.4.0/actsim/lmd_ipsl_stats.F90 $ |
|---|
| 5 | ! |
|---|
| 6 | ! Redistribution and use in source and binary forms, with or without modification, are permitted |
|---|
| 7 | ! provided that the following conditions are met: |
|---|
| 8 | ! |
|---|
| 9 | ! * Redistributions of source code must retain the above copyright notice, this list |
|---|
| 10 | ! of conditions and the following disclaimer. |
|---|
| 11 | ! * Redistributions in binary form must reproduce the above copyright notice, this list |
|---|
| 12 | ! of conditions and the following disclaimer in the documentation and/or other materials |
|---|
| 13 | ! provided with the distribution. |
|---|
| 14 | ! * Neither the name of the LMD/IPSL/CNRS/UPMC nor the names of its |
|---|
| 15 | ! contributors may be used to endorse or promote products derived from this software without |
|---|
| 16 | ! specific prior written permission. |
|---|
| 17 | ! |
|---|
| 18 | ! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR |
|---|
| 19 | ! IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
|---|
| 20 | ! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
|---|
| 21 | ! CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
|---|
| 22 | ! DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|---|
| 23 | ! DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
|---|
| 24 | ! IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
|---|
| 25 | ! OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|---|
| 26 | |
|---|
| 27 | |
|---|
| 28 | !------------------------------------------------------------------------------------ |
|---|
| 29 | ! Authors: Sandrine Bony and Helene Chepfer (LMD/IPSL, CNRS, UPMC, France). |
|---|
| 30 | !------------------------------------------------------------------------------------ |
|---|
| 31 | MODULE MOD_LMD_IPSL_STATS |
|---|
| 32 | USE MOD_LLNL_STATS |
|---|
| 33 | IMPLICIT NONE |
|---|
| 34 | |
|---|
| 35 | CONTAINS |
|---|
| 36 | SUBROUTINE diag_lidar(npoints,ncol,llm,max_bin,nrefl & |
|---|
| 37 | ,tmp,pnorm,pnorm_perp,pmol,refl,land,pplay,undef,ok_lidar_cfad & |
|---|
| 38 | ,cfad2,srbval,ncat,lidarcld,lidarcldphase,cldlayer,cldlayerphase & |
|---|
| 39 | ,lidarcldtmp,parasolrefl) |
|---|
| 40 | ! |
|---|
| 41 | ! ----------------------------------------------------------------------------------- |
|---|
| 42 | ! Lidar outputs : |
|---|
| 43 | ! |
|---|
| 44 | ! Diagnose cloud fraction (3D cloud fraction + low/middle/high/total cloud fraction) |
|---|
| 45 | ! and phase cloud fraction (3D, low/mid/high/total and 3D temperature) |
|---|
| 46 | ! from the lidar signals (ATB, ATBperp and molecular ATB) computed from model outputs |
|---|
| 47 | ! + |
|---|
| 48 | ! Compute CFADs of lidar scattering ratio SR and of depolarization index |
|---|
| 49 | ! |
|---|
| 50 | ! Authors: Sandrine Bony and Helene Chepfer (LMD/IPSL, CNRS, UPMC, France). |
|---|
| 51 | ! |
|---|
| 52 | ! December 2008, S. Bony, H. Chepfer and J-L. Dufresne : |
|---|
| 53 | ! - change of the cloud detection threshold S_cld from 3 to 5, for better |
|---|
| 54 | ! with both day and night observations. The optical thinest clouds are missed. |
|---|
| 55 | ! - remove of the detection of the first fully attenuated layer encountered from above. |
|---|
| 56 | ! December 2008, A. Bodas-Salcedo: |
|---|
| 57 | ! - Dimensions of pmol reduced to (npoints,llm) |
|---|
| 58 | ! August 2009, A. Bodas-Salcedo: |
|---|
| 59 | ! - Warning message regarding PARASOL being valid only over ocean deleted. |
|---|
| 60 | ! February 2010, A. Bodas-Salcedo: |
|---|
| 61 | ! - Undef passed into cosp_cfad_sr |
|---|
| 62 | ! June 2010, T. Yokohata, T. Nishimura and K. Ogochi |
|---|
| 63 | ! Optimisation of COSP_CFAD_SR |
|---|
| 64 | ! |
|---|
| 65 | ! January 2013, G. Cesana, H. Chepfer: |
|---|
| 66 | ! - Add the perpendicular component of the backscattered signal (pnorm_perp) in the arguments |
|---|
| 67 | ! - Add the temperature (tmp) in the arguments |
|---|
| 68 | ! - Add the 3D Phase cloud fraction (lidarcldphase) in the arguments |
|---|
| 69 | ! - Add the Phase low mid high cloud fraction (cldlayerphase) in the arguments |
|---|
| 70 | ! - Add the 3D Phase cloud fraction as a function of temperature (lidarcldtmp) in the arguments |
|---|
| 71 | ! - Modification of the phase diagnosis within the COSP_CLDFRAC routine to integrate the phase |
|---|
| 72 | ! diagnosis (3D, low/mid/high, 3D temperature) |
|---|
| 73 | ! Reference: Cesana G. and H. Chepfer (2013): Evaluation of the cloud water phase |
|---|
| 74 | ! in a climate model using CALIPSO-GOCCP, J. Geophys. Res., doi: 10.1002/jgrd.50376 |
|---|
| 75 | ! |
|---|
| 76 | ! ------------------------------------------------------------------------------------ |
|---|
| 77 | |
|---|
| 78 | ! c inputs : |
|---|
| 79 | integer npoints |
|---|
| 80 | integer ncol |
|---|
| 81 | integer llm |
|---|
| 82 | integer max_bin ! nb of bins for SR CFADs |
|---|
| 83 | integer ncat ! nb of cloud layer types (low,mid,high,total) |
|---|
| 84 | integer nrefl ! nb of solar zenith angles for parasol reflectances |
|---|
| 85 | |
|---|
| 86 | real undef ! undefined value |
|---|
| 87 | real pnorm(npoints,ncol,llm) ! lidar ATB |
|---|
| 88 | real pmol(npoints,llm) ! molecular ATB |
|---|
| 89 | real land(npoints) ! Landmask [0 - Ocean, 1 - Land] |
|---|
| 90 | real pplay(npoints,llm) ! pressure on model levels (Pa) |
|---|
| 91 | logical ok_lidar_cfad ! true if lidar CFAD diagnostics need to be computed |
|---|
| 92 | real refl(npoints,ncol,nrefl) ! subgrid parasol reflectance ! parasol |
|---|
| 93 | real tmp(npoints,llm) ! temp at each levels |
|---|
| 94 | real pnorm_perp(npoints,ncol,llm) ! lidar perpendicular ATB |
|---|
| 95 | |
|---|
| 96 | ! c outputs : |
|---|
| 97 | real lidarcld(npoints,llm) ! 3D "lidar" cloud fraction |
|---|
| 98 | real sub(npoints,llm) ! 3D "lidar" indice |
|---|
| 99 | real cldlayer(npoints,ncat) ! "lidar" cloud layer fraction (low, mid, high, total) |
|---|
| 100 | |
|---|
| 101 | real cfad2(npoints,max_bin,llm) ! CFADs of SR |
|---|
| 102 | real srbval(max_bin) ! SR bins in CFADs |
|---|
| 103 | real parasolrefl(npoints,nrefl)! grid-averaged parasol reflectance |
|---|
| 104 | |
|---|
| 105 | ! c threshold for cloud detection : |
|---|
| 106 | real S_clr |
|---|
| 107 | parameter (S_clr = 1.2) |
|---|
| 108 | real S_cld |
|---|
| 109 | parameter (S_cld = 5.) ! Thresold for cloud detection |
|---|
| 110 | real S_att |
|---|
| 111 | parameter (S_att = 0.01) |
|---|
| 112 | |
|---|
| 113 | ! c local variables : |
|---|
| 114 | integer ic,k,i,j |
|---|
| 115 | real x3d(npoints,ncol,llm) |
|---|
| 116 | real x3d_c(npoints,llm),pnorm_c(npoints,llm) |
|---|
| 117 | real xmax |
|---|
| 118 | |
|---|
| 119 | ! Output variables |
|---|
| 120 | integer,parameter :: nphase = 6 ! nb of cloud layer phase types (ice,liquid,undefined,false ice,false liquid,Percent of ice) |
|---|
| 121 | real lidarcldphase(npoints,llm,nphase) ! 3D "lidar" phase cloud fraction |
|---|
| 122 | real lidarcldtmp(npoints,40,5) ! 3D "lidar" phase cloud fraction as a function of temp |
|---|
| 123 | real cldlayerphase(npoints,ncat,nphase) ! "lidar" phase low mid high cloud fraction |
|---|
| 124 | |
|---|
| 125 | ! SR detection threshold |
|---|
| 126 | real, parameter :: S_cld_att = 30. ! New threshold for undefine cloud phase detection |
|---|
| 127 | |
|---|
| 128 | |
|---|
| 129 | ! |
|---|
| 130 | ! c ------------------------------------------------------- |
|---|
| 131 | ! c 0- Initializations |
|---|
| 132 | ! c ------------------------------------------------------- |
|---|
| 133 | ! |
|---|
| 134 | ! Should be modified in future version |
|---|
| 135 | xmax=undef-1.0 |
|---|
| 136 | |
|---|
| 137 | ! c ------------------------------------------------------- |
|---|
| 138 | ! c 1- Lidar scattering ratio : |
|---|
| 139 | ! c ------------------------------------------------------- |
|---|
| 140 | |
|---|
| 141 | do ic = 1, ncol |
|---|
| 142 | pnorm_c = pnorm(:,ic,:) |
|---|
| 143 | where ((pnorm_c.lt.xmax) .and. (pmol.lt.xmax) .and. (pmol.gt. 0.0 )) |
|---|
| 144 | x3d_c = pnorm_c/pmol |
|---|
| 145 | elsewhere |
|---|
| 146 | x3d_c = undef |
|---|
| 147 | end where |
|---|
| 148 | x3d(:,ic,:) = x3d_c |
|---|
| 149 | enddo |
|---|
| 150 | |
|---|
| 151 | ! c ------------------------------------------------------- |
|---|
| 152 | ! c 2- Diagnose cloud fractions (3D, low, middle, high, total) |
|---|
| 153 | ! c from subgrid-scale lidar scattering ratios : |
|---|
| 154 | ! c ------------------------------------------------------- |
|---|
| 155 | |
|---|
| 156 | CALL COSP_CLDFRAC(npoints,ncol,llm,ncat,nphase, & |
|---|
| 157 | tmp,x3d,pnorm,pnorm_perp,pplay, S_att,S_cld,S_cld_att,undef,lidarcld, & |
|---|
| 158 | cldlayer,lidarcldphase,sub,cldlayerphase,lidarcldtmp) |
|---|
| 159 | |
|---|
| 160 | ! c ------------------------------------------------------- |
|---|
| 161 | ! c 3- CFADs |
|---|
| 162 | ! c ------------------------------------------------------- |
|---|
| 163 | if (ok_lidar_cfad) then |
|---|
| 164 | ! |
|---|
| 165 | ! c CFADs of subgrid-scale lidar scattering ratios : |
|---|
| 166 | ! c ------------------------------------------------------- |
|---|
| 167 | CALL COSP_CFAD_SR(npoints,ncol,llm,max_bin,undef, & |
|---|
| 168 | x3d, & |
|---|
| 169 | S_att,S_clr,xmax,cfad2,srbval) |
|---|
| 170 | |
|---|
| 171 | endif ! ok_lidar_cfad |
|---|
| 172 | ! c ------------------------------------------------------- |
|---|
| 173 | |
|---|
| 174 | ! c ------------------------------------------------------- |
|---|
| 175 | ! c 4- Compute grid-box averaged Parasol reflectances |
|---|
| 176 | ! c ------------------------------------------------------- |
|---|
| 177 | |
|---|
| 178 | parasolrefl(:,:) = 0.0 |
|---|
| 179 | |
|---|
| 180 | do k = 1, nrefl |
|---|
| 181 | do ic = 1, ncol |
|---|
| 182 | parasolrefl(:,k) = parasolrefl(:,k) + refl(:,ic,k) |
|---|
| 183 | enddo |
|---|
| 184 | enddo |
|---|
| 185 | |
|---|
| 186 | do k = 1, nrefl |
|---|
| 187 | parasolrefl(:,k) = parasolrefl(:,k) / float(ncol) |
|---|
| 188 | ! if land=1 -> parasolrefl=undef |
|---|
| 189 | ! if land=0 -> parasolrefl=parasolrefl |
|---|
| 190 | parasolrefl(:,k) = parasolrefl(:,k) * MAX(1.0-land(:),0.0) & |
|---|
| 191 | + (1.0 - MAX(1.0-land(:),0.0))*undef |
|---|
| 192 | enddo |
|---|
| 193 | |
|---|
| 194 | RETURN |
|---|
| 195 | END SUBROUTINE diag_lidar |
|---|
| 196 | |
|---|
| 197 | |
|---|
| 198 | !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 199 | !-------------------- FUNCTION COSP_CFAD_SR ------------------------ |
|---|
| 200 | ! Author: Sandrine Bony (LMD/IPSL, CNRS, Paris) |
|---|
| 201 | !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 202 | SUBROUTINE COSP_CFAD_SR(Npoints,Ncolumns,Nlevels,Nbins,undef, & |
|---|
| 203 | x,S_att,S_clr,xmax,cfad,srbval) |
|---|
| 204 | IMPLICIT NONE |
|---|
| 205 | |
|---|
| 206 | !--- Input arguments |
|---|
| 207 | ! Npoints: Number of horizontal points |
|---|
| 208 | ! Ncolumns: Number of subcolumns |
|---|
| 209 | ! Nlevels: Number of levels |
|---|
| 210 | ! Nbins: Number of x axis bins |
|---|
| 211 | ! xmax: maximum value allowed for x |
|---|
| 212 | ! S_att: Threshold for full attenuation |
|---|
| 213 | ! S_clr: Threshold for clear-sky layer |
|---|
| 214 | ! |
|---|
| 215 | !--- Input-Outout arguments |
|---|
| 216 | ! x: variable to process (Npoints,Ncolumns,Nlevels), mofified where saturation occurs |
|---|
| 217 | ! |
|---|
| 218 | ! -- Output arguments |
|---|
| 219 | ! srbval : values of the histogram bins |
|---|
| 220 | ! cfad: 2D histogram on each horizontal point |
|---|
| 221 | |
|---|
| 222 | ! Input arguments |
|---|
| 223 | integer Npoints,Ncolumns,Nlevels,Nbins |
|---|
| 224 | real xmax,S_att,S_clr,undef |
|---|
| 225 | ! Input-output arguments |
|---|
| 226 | real x(Npoints,Ncolumns,Nlevels) |
|---|
| 227 | ! Output : |
|---|
| 228 | real cfad(Npoints,Nbins,Nlevels) |
|---|
| 229 | real srbval(Nbins) |
|---|
| 230 | ! Local variables |
|---|
| 231 | integer i, j, k, ib |
|---|
| 232 | real srbval_ext(0:Nbins) |
|---|
| 233 | |
|---|
| 234 | ! c ------------------------------------------------------- |
|---|
| 235 | ! c 0- Initializations |
|---|
| 236 | ! c ------------------------------------------------------- |
|---|
| 237 | if ( Nbins .lt. 6) return |
|---|
| 238 | |
|---|
| 239 | srbval(1) = S_att |
|---|
| 240 | srbval(2) = S_clr |
|---|
| 241 | srbval(3) = 3.0 |
|---|
| 242 | srbval(4) = 5.0 |
|---|
| 243 | srbval(5) = 7.0 |
|---|
| 244 | srbval(6) = 10.0 |
|---|
| 245 | do i = 7, MIN(10,Nbins) |
|---|
| 246 | srbval(i) = srbval(i-1) + 5.0 |
|---|
| 247 | enddo |
|---|
| 248 | DO i = 11, MIN(13,Nbins) |
|---|
| 249 | srbval(i) = srbval(i-1) + 10.0 |
|---|
| 250 | enddo |
|---|
| 251 | srbval(MIN(14,Nbins)) = 80.0 |
|---|
| 252 | srbval(Nbins) = xmax |
|---|
| 253 | cfad(:,:,:) = 0.0 |
|---|
| 254 | |
|---|
| 255 | srbval_ext(1:Nbins) = srbval |
|---|
| 256 | srbval_ext(0) = -1.0 |
|---|
| 257 | ! c ------------------------------------------------------- |
|---|
| 258 | ! c c- Compute CFAD |
|---|
| 259 | ! c ------------------------------------------------------- |
|---|
| 260 | do j = 1, Nlevels |
|---|
| 261 | do ib = 1, Nbins |
|---|
| 262 | do k = 1, Ncolumns |
|---|
| 263 | do i = 1, Npoints |
|---|
| 264 | if (x(i,k,j) /= undef) then |
|---|
| 265 | if ((x(i,k,j).gt.srbval_ext(ib-1)).and.(x(i,k,j).le.srbval_ext(ib))) & |
|---|
| 266 | cfad(i,ib,j) = cfad(i,ib,j) + 1.0 |
|---|
| 267 | else |
|---|
| 268 | cfad(i,ib,j) = undef |
|---|
| 269 | endif |
|---|
| 270 | enddo |
|---|
| 271 | enddo |
|---|
| 272 | enddo |
|---|
| 273 | enddo |
|---|
| 274 | |
|---|
| 275 | where (cfad .ne. undef) cfad = cfad / float(Ncolumns) |
|---|
| 276 | |
|---|
| 277 | ! c ------------------------------------------------------- |
|---|
| 278 | RETURN |
|---|
| 279 | END SUBROUTINE COSP_CFAD_SR |
|---|
| 280 | |
|---|
| 281 | |
|---|
| 282 | !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 283 | !-------------------- SUBROUTINE COSP_CLDFRAC ------------------- |
|---|
| 284 | ! c Purpose: Cloud fraction diagnosed from lidar measurements |
|---|
| 285 | !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 286 | SUBROUTINE COSP_CLDFRAC(Npoints,Ncolumns,Nlevels,Ncat,Nphase, & |
|---|
| 287 | tmp,x,ATB,ATBperp,pplay,S_att,S_cld,S_cld_att,undef,lidarcld, & |
|---|
| 288 | cldlayer,lidarcldphase,nsub,cldlayerphase,lidarcldtemp) |
|---|
| 289 | |
|---|
| 290 | |
|---|
| 291 | IMPLICIT NONE |
|---|
| 292 | ! Input arguments |
|---|
| 293 | integer Npoints,Ncolumns,Nlevels,Ncat |
|---|
| 294 | real x(Npoints,Ncolumns,Nlevels) |
|---|
| 295 | |
|---|
| 296 | |
|---|
| 297 | ! Local parameters |
|---|
| 298 | integer nphase ! nb of cloud layer phase types |
|---|
| 299 | ! (ice,liquid,undefined,false ice,false liquid,Percent of ice) |
|---|
| 300 | integer,parameter :: Ntemp=40 ! indice of the temperature vector |
|---|
| 301 | integer ip, k, iz, ic, ncol, nlev, i, itemp ! loop indice |
|---|
| 302 | real S_cld_att ! New threshold for undefine cloud phase detection (SR=30) |
|---|
| 303 | integer toplvlsat ! level of the first cloud with SR>30 |
|---|
| 304 | real alpha50, beta50, gamma50, delta50, epsilon50, zeta50 ! Polynomial Coef of the phase |
|---|
| 305 | ! discrimination line |
|---|
| 306 | |
|---|
| 307 | ! Input variables |
|---|
| 308 | real tmp(Npoints,Nlevels) ! temperature |
|---|
| 309 | real ATB(Npoints,Ncolumns,Nlevels) ! 3D Attenuated backscatter |
|---|
| 310 | real ATBperp(Npoints,Ncolumns,Nlevels) ! 3D perpendicular attenuated backscatter |
|---|
| 311 | real pplay(Npoints,Nlevels) |
|---|
| 312 | real S_att,S_cld |
|---|
| 313 | real undef |
|---|
| 314 | |
|---|
| 315 | ! Output variables |
|---|
| 316 | real lidarcldtemp(Npoints,Ntemp,5) ! 3D Temperature 1=tot,2=ice,3=liq,4=undef,5=ice/ice+liq |
|---|
| 317 | real tempmod(Ntemp+1) ! temperature bins |
|---|
| 318 | real lidarcldphase(Npoints,Nlevels,Nphase) ! 3D cloud phase fraction |
|---|
| 319 | real cldlayerphase(Npoints,Ncat,Nphase) ! low, middle, high, total cloud fractions for ice liquid and undefine phase |
|---|
| 320 | real lidarcld(Npoints,Nlevels) ! 3D cloud fraction |
|---|
| 321 | real cldlayer(Npoints,Ncat) ! low, middle, high, total cloud fractions |
|---|
| 322 | |
|---|
| 323 | ! Local variables |
|---|
| 324 | real tmpi(Npoints,Ncolumns,Nlevels) ! temperature of ice cld |
|---|
| 325 | real tmpl(Npoints,Ncolumns,Nlevels) ! temperature of liquid cld |
|---|
| 326 | real tmpu(Npoints,Ncolumns,Nlevels) ! temperature of undef cld |
|---|
| 327 | |
|---|
| 328 | real checktemp, ATBperp_tmp ! temporary variable |
|---|
| 329 | real checkcldlayerphase, checkcldlayerphase2 ! temporary variable |
|---|
| 330 | real sumlidarcldtemp(Npoints,Ntemp) ! temporary variable |
|---|
| 331 | |
|---|
| 332 | real cldlayphase(Npoints,Ncolumns,Ncat,Nphase) ! subgrided low mid high phase cloud fraction |
|---|
| 333 | real cldlayerphasetmp(Npoints,Ncat) ! temporary variable |
|---|
| 334 | real cldlayerphasesum(Npoints,Ncat) ! temporary variable |
|---|
| 335 | real lidarcldtempind(Npoints,Ntemp) ! 3D Temperature indice |
|---|
| 336 | real lidarcldphasetmp(Npoints,Nlevels) ! 3D sum of ice and liquid cloud occurences |
|---|
| 337 | |
|---|
| 338 | |
|---|
| 339 | ! Local variables |
|---|
| 340 | real p1 |
|---|
| 341 | real cldy(Npoints,Ncolumns,Nlevels) |
|---|
| 342 | real srok(Npoints,Ncolumns,Nlevels) |
|---|
| 343 | real cldlay(Npoints,Ncolumns,Ncat) |
|---|
| 344 | real nsublay(Npoints,Ncolumns,Ncat), nsublayer(Npoints,Ncat) |
|---|
| 345 | real nsub(Npoints,Nlevels) |
|---|
| 346 | |
|---|
| 347 | #ifdef SYS_SX |
|---|
| 348 | real cldlay1(Npoints,Ncolumns) |
|---|
| 349 | real cldlay2(Npoints,Ncolumns) |
|---|
| 350 | real cldlay3(Npoints,Ncolumns) |
|---|
| 351 | real nsublay1(Npoints,Ncolumns) |
|---|
| 352 | real nsublay2(Npoints,Ncolumns) |
|---|
| 353 | real nsublay3(Npoints,Ncolumns) |
|---|
| 354 | #endif |
|---|
| 355 | |
|---|
| 356 | |
|---|
| 357 | |
|---|
| 358 | |
|---|
| 359 | ! --------------------------------------------------------------- |
|---|
| 360 | ! 1- initialization |
|---|
| 361 | ! --------------------------------------------------------------- |
|---|
| 362 | |
|---|
| 363 | if ( Ncat .ne. 4 ) then |
|---|
| 364 | print *,'Error in lmd_ipsl_stats.cosp_cldfrac, Ncat must be 4, not',Ncat |
|---|
| 365 | stop |
|---|
| 366 | endif |
|---|
| 367 | |
|---|
| 368 | lidarcld = 0.0 |
|---|
| 369 | nsub = 0.0 |
|---|
| 370 | cldlay = 0.0 |
|---|
| 371 | nsublay = 0.0 |
|---|
| 372 | |
|---|
| 373 | ATBperp_tmp = 0. |
|---|
| 374 | lidarcldphase(:,:,:) = 0. |
|---|
| 375 | cldlayphase(:,:,:,:) = 0. |
|---|
| 376 | cldlayerphase(:,:,:) = 0. |
|---|
| 377 | tmpi(:,:,:) = 0. |
|---|
| 378 | tmpl(:,:,:) = 0. |
|---|
| 379 | tmpu(:,:,:) = 0. |
|---|
| 380 | cldlayerphasesum(:,:) = 0. |
|---|
| 381 | lidarcldtemp(:,:,:) = 0. |
|---|
| 382 | lidarcldtempind(:,:) = 0. |
|---|
| 383 | sumlidarcldtemp(:,:) = 0. |
|---|
| 384 | toplvlsat=0 |
|---|
| 385 | lidarcldphasetmp(:,:) = 0. |
|---|
| 386 | |
|---|
| 387 | ! temperature bins |
|---|
| 388 | tempmod=(/-273.15,-90.,-87.,-84.,-81.,-78.,-75.,-72.,-69.,-66.,-63.,-60.,-57., & |
|---|
| 389 | -54.,-51.,-48.,-45.,-42.,-39.,-36.,-33.,-30.,-27.,-24.,-21.,-18., & |
|---|
| 390 | -15.,-12.,-9.,-6.,-3.,0.,3.,6.,9.,12.,15.,18.,21.,24.,200. /) |
|---|
| 391 | |
|---|
| 392 | ! convert C to K |
|---|
| 393 | tempmod=tempmod+273.15 |
|---|
| 394 | |
|---|
| 395 | ! Polynomial coefficient of the phase discrimination line used to separate liquid from ice |
|---|
| 396 | ! (Cesana and Chepfer, JGR, 2013) |
|---|
| 397 | ! ATBperp = ATB^5*alpha50 + ATB^4*beta50 + ATB^3*gamma50 + ATB^2*delta50 + ATB*epsilon50 + zeta50 |
|---|
| 398 | alpha50 = 9.0322e+15 |
|---|
| 399 | beta50 = -2.1358e+12 |
|---|
| 400 | gamma50 = 173.3963e06 |
|---|
| 401 | delta50 = -3.9514e03 |
|---|
| 402 | epsilon50 = 0.2559 |
|---|
| 403 | zeta50 = -9.4776e-07 |
|---|
| 404 | |
|---|
| 405 | |
|---|
| 406 | ! --------------------------------------------------------------- |
|---|
| 407 | ! 2- Cloud detection |
|---|
| 408 | ! --------------------------------------------------------------- |
|---|
| 409 | |
|---|
| 410 | do k = 1, Nlevels |
|---|
| 411 | |
|---|
| 412 | ! cloud detection at subgrid-scale: |
|---|
| 413 | where ( (x(:,:,k).gt.S_cld) .and. (x(:,:,k).ne. undef) ) |
|---|
| 414 | cldy(:,:,k)=1.0 |
|---|
| 415 | elsewhere |
|---|
| 416 | cldy(:,:,k)=0.0 |
|---|
| 417 | endwhere |
|---|
| 418 | |
|---|
| 419 | ! number of usefull sub-columns: |
|---|
| 420 | where ( (x(:,:,k).gt.S_att) .and. (x(:,:,k).ne. undef) ) |
|---|
| 421 | srok(:,:,k)=1.0 |
|---|
| 422 | elsewhere |
|---|
| 423 | srok(:,:,k)=0.0 |
|---|
| 424 | endwhere |
|---|
| 425 | |
|---|
| 426 | enddo ! k |
|---|
| 427 | |
|---|
| 428 | |
|---|
| 429 | ! --------------------------------------------------------------- |
|---|
| 430 | ! 3- grid-box 3D cloud fraction and layered cloud fractions (ISCCP pressure |
|---|
| 431 | ! categories) : |
|---|
| 432 | ! --------------------------------------------------------------- |
|---|
| 433 | lidarcld = 0.0 |
|---|
| 434 | nsub = 0.0 |
|---|
| 435 | #ifdef SYS_SX |
|---|
| 436 | !! XXX: Use cldlay[1-3] and nsublay[1-3] to avoid bank-conflicts. |
|---|
| 437 | cldlay1 = 0.0 |
|---|
| 438 | cldlay2 = 0.0 |
|---|
| 439 | cldlay3 = 0.0 |
|---|
| 440 | cldlay(:,:,4) = 0.0 !! XXX: Ncat == 4 |
|---|
| 441 | nsublay1 = 0.0 |
|---|
| 442 | nsublay2 = 0.0 |
|---|
| 443 | nsublay3 = 0.0 |
|---|
| 444 | nsublay(:,:,4) = 0.0 |
|---|
| 445 | |
|---|
| 446 | do k = Nlevels, 1, -1 |
|---|
| 447 | do ic = 1, Ncolumns |
|---|
| 448 | do ip = 1, Npoints |
|---|
| 449 | |
|---|
| 450 | if(srok(ip,ic,k).gt.0.)then |
|---|
| 451 | ! Computation of the cloud fraction as a function of the temperature |
|---|
| 452 | ! instead of height, for ice,liquid and all clouds |
|---|
| 453 | do itemp=1,Ntemp |
|---|
| 454 | if( (tmp(ip,k).ge.tempmod(itemp)).and.(tmp(ip,k).lt.tempmod(itemp+1)) )then |
|---|
| 455 | lidarcldtempind(ip,itemp)=lidarcldtempind(ip,itemp)+1. |
|---|
| 456 | endif |
|---|
| 457 | enddo |
|---|
| 458 | endif |
|---|
| 459 | |
|---|
| 460 | if (cldy(ip,ic,k).eq.1.) then |
|---|
| 461 | do itemp=1,Ntemp |
|---|
| 462 | if( (tmp(ip,k).ge.tempmod(itemp)).and.(tmp(ip,k).lt.tempmod(itemp+1)) )then |
|---|
| 463 | lidarcldtemp(ip,itemp,1)=lidarcldtemp(ip,itemp,1)+1. |
|---|
| 464 | endif |
|---|
| 465 | enddo |
|---|
| 466 | endif |
|---|
| 467 | |
|---|
| 468 | p1 = pplay(ip,k) |
|---|
| 469 | |
|---|
| 470 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high clouds |
|---|
| 471 | cldlay3(ip,ic) = MAX(cldlay3(ip,ic), cldy(ip,ic,k)) |
|---|
| 472 | nsublay3(ip,ic) = MAX(nsublay3(ip,ic), srok(ip,ic,k)) |
|---|
| 473 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid clouds |
|---|
| 474 | cldlay2(ip,ic) = MAX(cldlay2(ip,ic), cldy(ip,ic,k)) |
|---|
| 475 | nsublay2(ip,ic) = MAX(nsublay2(ip,ic), srok(ip,ic,k)) |
|---|
| 476 | else |
|---|
| 477 | cldlay1(ip,ic) = MAX(cldlay1(ip,ic), cldy(ip,ic,k)) |
|---|
| 478 | nsublay1(ip,ic) = MAX(nsublay1(ip,ic), srok(ip,ic,k)) |
|---|
| 479 | endif |
|---|
| 480 | |
|---|
| 481 | cldlay(ip,ic,4) = MAX(cldlay(ip,ic,4), cldy(ip,ic,k)) |
|---|
| 482 | lidarcld(ip,k)=lidarcld(ip,k) + cldy(ip,ic,k) |
|---|
| 483 | nsublay(ip,ic,4) = MAX(nsublay(ip,ic,4),srok(ip,ic,k)) |
|---|
| 484 | nsub(ip,k)=nsub(ip,k) + srok(ip,ic,k) |
|---|
| 485 | enddo |
|---|
| 486 | enddo |
|---|
| 487 | enddo |
|---|
| 488 | cldlay(:,:,1) = cldlay1 |
|---|
| 489 | cldlay(:,:,2) = cldlay2 |
|---|
| 490 | cldlay(:,:,3) = cldlay3 |
|---|
| 491 | nsublay(:,:,1) = nsublay1 |
|---|
| 492 | nsublay(:,:,2) = nsublay2 |
|---|
| 493 | nsublay(:,:,3) = nsublay3 |
|---|
| 494 | #else |
|---|
| 495 | cldlay = 0.0 |
|---|
| 496 | nsublay = 0.0 |
|---|
| 497 | do k = Nlevels, 1, -1 |
|---|
| 498 | do ic = 1, Ncolumns |
|---|
| 499 | do ip = 1, Npoints |
|---|
| 500 | |
|---|
| 501 | ! Computation of the cloud fraction as a function of the temperature |
|---|
| 502 | ! instead of height, for ice,liquid and all clouds |
|---|
| 503 | if(srok(ip,ic,k).gt.0.)then |
|---|
| 504 | do itemp=1,Ntemp |
|---|
| 505 | if( (tmp(ip,k).ge.tempmod(itemp)).and.(tmp(ip,k).lt.tempmod(itemp+1)) )then |
|---|
| 506 | lidarcldtempind(ip,itemp)=lidarcldtempind(ip,itemp)+1. |
|---|
| 507 | endif |
|---|
| 508 | enddo |
|---|
| 509 | endif |
|---|
| 510 | |
|---|
| 511 | if(cldy(ip,ic,k).eq.1.)then |
|---|
| 512 | do itemp=1,Ntemp |
|---|
| 513 | if( (tmp(ip,k).ge.tempmod(itemp)).and.(tmp(ip,k).lt.tempmod(itemp+1)) )then |
|---|
| 514 | lidarcldtemp(ip,itemp,1)=lidarcldtemp(ip,itemp,1)+1. |
|---|
| 515 | endif |
|---|
| 516 | enddo |
|---|
| 517 | endif |
|---|
| 518 | ! |
|---|
| 519 | |
|---|
| 520 | iz=1 |
|---|
| 521 | p1 = pplay(ip,k) |
|---|
| 522 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high clouds |
|---|
| 523 | iz=3 |
|---|
| 524 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid clouds |
|---|
| 525 | iz=2 |
|---|
| 526 | endif |
|---|
| 527 | |
|---|
| 528 | cldlay(ip,ic,iz) = MAX(cldlay(ip,ic,iz),cldy(ip,ic,k)) |
|---|
| 529 | cldlay(ip,ic,4) = MAX(cldlay(ip,ic,4),cldy(ip,ic,k)) |
|---|
| 530 | lidarcld(ip,k)=lidarcld(ip,k) + cldy(ip,ic,k) |
|---|
| 531 | |
|---|
| 532 | nsublay(ip,ic,iz) = MAX(nsublay(ip,ic,iz),srok(ip,ic,k)) |
|---|
| 533 | nsublay(ip,ic,4) = MAX(nsublay(ip,ic,4),srok(ip,ic,k)) |
|---|
| 534 | nsub(ip,k)=nsub(ip,k) + srok(ip,ic,k) |
|---|
| 535 | |
|---|
| 536 | enddo |
|---|
| 537 | enddo |
|---|
| 538 | enddo |
|---|
| 539 | #endif |
|---|
| 540 | |
|---|
| 541 | |
|---|
| 542 | ! -- grid-box 3D cloud fraction |
|---|
| 543 | |
|---|
| 544 | where ( nsub(:,:).gt.0.0 ) |
|---|
| 545 | lidarcld(:,:) = lidarcld(:,:)/nsub(:,:) |
|---|
| 546 | elsewhere |
|---|
| 547 | lidarcld(:,:) = undef |
|---|
| 548 | endwhere |
|---|
| 549 | |
|---|
| 550 | ! -- layered cloud fractions |
|---|
| 551 | |
|---|
| 552 | cldlayer = 0.0 |
|---|
| 553 | nsublayer = 0.0 |
|---|
| 554 | |
|---|
| 555 | do iz = 1, Ncat |
|---|
| 556 | do ic = 1, Ncolumns |
|---|
| 557 | |
|---|
| 558 | cldlayer(:,iz)=cldlayer(:,iz) + cldlay(:,ic,iz) |
|---|
| 559 | nsublayer(:,iz)=nsublayer(:,iz) + nsublay(:,ic,iz) |
|---|
| 560 | |
|---|
| 561 | enddo |
|---|
| 562 | enddo |
|---|
| 563 | where ( nsublayer(:,:).gt.0.0 ) |
|---|
| 564 | cldlayer(:,:) = cldlayer(:,:)/nsublayer(:,:) |
|---|
| 565 | elsewhere |
|---|
| 566 | cldlayer(:,:) = undef |
|---|
| 567 | endwhere |
|---|
| 568 | |
|---|
| 569 | ! --------------------------------------------------------------- |
|---|
| 570 | ! 4- grid-box 3D cloud Phase : |
|---|
| 571 | ! --------------------------------------------------------------- |
|---|
| 572 | ! --------------------------------------------------------------- |
|---|
| 573 | ! 4.1 - For Cloudy pixels with 8.16km < z < 19.2km |
|---|
| 574 | ! --------------------------------------------------------------- |
|---|
| 575 | do ncol=1,Ncolumns |
|---|
| 576 | do i=1,Npoints |
|---|
| 577 | |
|---|
| 578 | do nlev=Nlevels,18,-1 ! from 19.2km until 8.16km |
|---|
| 579 | p1 = pplay(i,nlev) |
|---|
| 580 | |
|---|
| 581 | |
|---|
| 582 | ! Avoid zero values |
|---|
| 583 | if( (cldy(i,ncol,nlev).eq.1.) .and. (ATBperp(i,ncol,nlev).gt.0.) )then |
|---|
| 584 | ! Computation of the ATBperp along the phase discrimination line |
|---|
| 585 | ATBperp_tmp = (ATB(i,ncol,nlev)**5)*alpha50 + (ATB(i,ncol,nlev)**4)*beta50 + & |
|---|
| 586 | (ATB(i,ncol,nlev)**3)*gamma50 + (ATB(i,ncol,nlev)**2)*delta50 + & |
|---|
| 587 | ATB(i,ncol,nlev)*epsilon50 + zeta50 |
|---|
| 588 | |
|---|
| 589 | !____________________________________________________________________________________________________ |
|---|
| 590 | ! |
|---|
| 591 | !4.1.a Ice: ATBperp above the phase discrimination line |
|---|
| 592 | !____________________________________________________________________________________________________ |
|---|
| 593 | ! |
|---|
| 594 | if( (ATBperp(i,ncol,nlev)-ATBperp_tmp).ge.0. )then ! Ice clouds |
|---|
| 595 | ! ICE with temperature above 273,15°K = Liquid (false ice) |
|---|
| 596 | if(tmp(i,nlev).gt.273.15)then ! Temperature above 273,15 K |
|---|
| 597 | ! Liquid: False ice corrected by the temperature to Liquid |
|---|
| 598 | lidarcldphase(i,nlev,2)=lidarcldphase(i,nlev,2)+1. ! false ice detection ==> added to Liquid |
|---|
| 599 | tmpl(i,ncol,nlev)=tmp(i,nlev) |
|---|
| 600 | lidarcldphase(i,nlev,5)=lidarcldphase(i,nlev,5)+1. ! keep the information "temperature criterium used" |
|---|
| 601 | ! to classify the phase cloud |
|---|
| 602 | cldlayphase(i,ncol,4,2) = 1. ! tot cloud |
|---|
| 603 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 604 | cldlayphase(i,ncol,3,2) = 1. |
|---|
| 605 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 606 | cldlayphase(i,ncol,2,2) = 1. |
|---|
| 607 | else ! low cloud |
|---|
| 608 | cldlayphase(i,ncol,1,2) = 1. |
|---|
| 609 | endif |
|---|
| 610 | cldlayphase(i,ncol,4,5) = 1. ! tot cloud |
|---|
| 611 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 612 | cldlayphase(i,ncol,3,5) = 1. |
|---|
| 613 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 614 | cldlayphase(i,ncol,2,5) = 1. |
|---|
| 615 | else ! low cloud |
|---|
| 616 | cldlayphase(i,ncol,1,5) = 1. |
|---|
| 617 | endif |
|---|
| 618 | |
|---|
| 619 | else |
|---|
| 620 | ! ICE with temperature below 273,15°K |
|---|
| 621 | lidarcldphase(i,nlev,1)=lidarcldphase(i,nlev,1)+1. |
|---|
| 622 | tmpi(i,ncol,nlev)=tmp(i,nlev) |
|---|
| 623 | cldlayphase(i,ncol,4,1) = 1. ! tot cloud |
|---|
| 624 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 625 | cldlayphase(i,ncol,3,1) = 1. |
|---|
| 626 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 627 | cldlayphase(i,ncol,2,1) = 1. |
|---|
| 628 | else ! low cloud |
|---|
| 629 | cldlayphase(i,ncol,1,1) = 1. |
|---|
| 630 | endif |
|---|
| 631 | |
|---|
| 632 | endif |
|---|
| 633 | |
|---|
| 634 | !____________________________________________________________________________________________________ |
|---|
| 635 | ! |
|---|
| 636 | ! 4.1.b Liquid: ATBperp below the phase discrimination line |
|---|
| 637 | !____________________________________________________________________________________________________ |
|---|
| 638 | ! |
|---|
| 639 | else ! Liquid clouds |
|---|
| 640 | ! Liquid with temperature above 231,15°K |
|---|
| 641 | if(tmp(i,nlev).gt.231.15)then |
|---|
| 642 | lidarcldphase(i,nlev,2)=lidarcldphase(i,nlev,2)+1. |
|---|
| 643 | tmpl(i,ncol,nlev)=tmp(i,nlev) |
|---|
| 644 | cldlayphase(i,ncol,4,2) = 1. ! tot cloud |
|---|
| 645 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 646 | cldlayphase(i,ncol,3,2) = 1. |
|---|
| 647 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 648 | cldlayphase(i,ncol,2,2) = 1. |
|---|
| 649 | else ! low cloud |
|---|
| 650 | cldlayphase(i,ncol,1,2) = 1. |
|---|
| 651 | endif |
|---|
| 652 | |
|---|
| 653 | else |
|---|
| 654 | ! Liquid with temperature below 231,15°K = Ice (false liquid) |
|---|
| 655 | tmpi(i,ncol,nlev)=tmp(i,nlev) |
|---|
| 656 | lidarcldphase(i,nlev,1)=lidarcldphase(i,nlev,1)+1. ! false liquid detection ==> added to ice |
|---|
| 657 | lidarcldphase(i,nlev,4)=lidarcldphase(i,nlev,4)+1. ! keep the information "temperature criterium used" |
|---|
| 658 | ! to classify the phase cloud |
|---|
| 659 | cldlayphase(i,ncol,4,4) = 1. ! tot cloud |
|---|
| 660 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 661 | cldlayphase(i,ncol,3,4) = 1. |
|---|
| 662 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 663 | cldlayphase(i,ncol,2,4) = 1. |
|---|
| 664 | else ! low cloud |
|---|
| 665 | cldlayphase(i,ncol,1,4) = 1. |
|---|
| 666 | endif |
|---|
| 667 | cldlayphase(i,ncol,4,1) = 1. ! tot cloud |
|---|
| 668 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 669 | cldlayphase(i,ncol,3,1) = 1. |
|---|
| 670 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 671 | cldlayphase(i,ncol,2,1) = 1. |
|---|
| 672 | else ! low cloud |
|---|
| 673 | cldlayphase(i,ncol,1,1) = 1. |
|---|
| 674 | endif |
|---|
| 675 | |
|---|
| 676 | endif |
|---|
| 677 | |
|---|
| 678 | endif ! end of discrimination condition |
|---|
| 679 | endif ! end of cloud condition |
|---|
| 680 | enddo ! end of altitude loop |
|---|
| 681 | |
|---|
| 682 | |
|---|
| 683 | |
|---|
| 684 | ! --------------------------------------------------------------- |
|---|
| 685 | ! 4.2 - For Cloudy pixels with 0km < z < 8.16km |
|---|
| 686 | ! --------------------------------------------------------------- |
|---|
| 687 | |
|---|
| 688 | toplvlsat=0 |
|---|
| 689 | do nlev=17,1,-1 ! from 8.16km until 0km |
|---|
| 690 | p1 = pplay(i,nlev) |
|---|
| 691 | |
|---|
| 692 | if( (cldy(i,ncol,nlev).eq.1.) .and. (ATBperp(i,ncol,nlev).gt.0.) )then |
|---|
| 693 | ! Phase discrimination line : ATBperp = ATB^5*alpha50 + ATB^4*beta50 + ATB^3*gamma50 + ATB^2*delta50 |
|---|
| 694 | ! + ATB*epsilon50 + zeta50 |
|---|
| 695 | ! Computation of the ATBperp of the phase discrimination line |
|---|
| 696 | ATBperp_tmp = (ATB(i,ncol,nlev)**5)*alpha50 + (ATB(i,ncol,nlev)**4)*beta50 + & |
|---|
| 697 | (ATB(i,ncol,nlev)**3)*gamma50 + (ATB(i,ncol,nlev)**2)*delta50 + & |
|---|
| 698 | ATB(i,ncol,nlev)*epsilon50 + zeta50 |
|---|
| 699 | !____________________________________________________________________________________________________ |
|---|
| 700 | ! |
|---|
| 701 | ! 4.2.a Ice: ATBperp above the phase discrimination line |
|---|
| 702 | !____________________________________________________________________________________________________ |
|---|
| 703 | ! |
|---|
| 704 | ! ICE with temperature above 273,15°K = Liquid (false ice) |
|---|
| 705 | if( (ATBperp(i,ncol,nlev)-ATBperp_tmp).ge.0. )then ! Ice clouds |
|---|
| 706 | if(tmp(i,nlev).gt.273.15)then |
|---|
| 707 | lidarcldphase(i,nlev,2)=lidarcldphase(i,nlev,2)+1. ! false ice ==> liq |
|---|
| 708 | tmpl(i,ncol,nlev)=tmp(i,nlev) |
|---|
| 709 | lidarcldphase(i,nlev,5)=lidarcldphase(i,nlev,5)+1. |
|---|
| 710 | |
|---|
| 711 | cldlayphase(i,ncol,4,2) = 1. ! tot cloud |
|---|
| 712 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 713 | cldlayphase(i,ncol,3,2) = 1. |
|---|
| 714 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 715 | cldlayphase(i,ncol,2,2) = 1. |
|---|
| 716 | else ! low cloud |
|---|
| 717 | cldlayphase(i,ncol,1,2) = 1. |
|---|
| 718 | endif |
|---|
| 719 | |
|---|
| 720 | cldlayphase(i,ncol,4,5) = 1. ! tot cloud |
|---|
| 721 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 722 | cldlayphase(i,ncol,3,5) = 1. |
|---|
| 723 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 724 | cldlayphase(i,ncol,2,5) = 1. |
|---|
| 725 | else ! low cloud |
|---|
| 726 | cldlayphase(i,ncol,1,5) = 1. |
|---|
| 727 | endif |
|---|
| 728 | |
|---|
| 729 | else |
|---|
| 730 | ! ICE with temperature below 273,15°K |
|---|
| 731 | lidarcldphase(i,nlev,1)=lidarcldphase(i,nlev,1)+1. |
|---|
| 732 | tmpi(i,ncol,nlev)=tmp(i,nlev) |
|---|
| 733 | |
|---|
| 734 | cldlayphase(i,ncol,4,1) = 1. ! tot cloud |
|---|
| 735 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 736 | cldlayphase(i,ncol,3,1) = 1. |
|---|
| 737 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 738 | cldlayphase(i,ncol,2,1) = 1. |
|---|
| 739 | else ! low cloud |
|---|
| 740 | cldlayphase(i,ncol,1,1) = 1. |
|---|
| 741 | endif |
|---|
| 742 | |
|---|
| 743 | endif |
|---|
| 744 | |
|---|
| 745 | !____________________________________________________________________________________________________ |
|---|
| 746 | ! |
|---|
| 747 | ! 4.2.b Liquid: ATBperp below the phase discrimination line |
|---|
| 748 | !____________________________________________________________________________________________________ |
|---|
| 749 | ! |
|---|
| 750 | else |
|---|
| 751 | ! Liquid with temperature above 231,15°K |
|---|
| 752 | if(tmp(i,nlev).gt.231.15)then |
|---|
| 753 | lidarcldphase(i,nlev,2)=lidarcldphase(i,nlev,2)+1. |
|---|
| 754 | tmpl(i,ncol,nlev)=tmp(i,nlev) |
|---|
| 755 | |
|---|
| 756 | cldlayphase(i,ncol,4,2) = 1. ! tot cloud |
|---|
| 757 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 758 | cldlayphase(i,ncol,3,2) = 1. |
|---|
| 759 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 760 | cldlayphase(i,ncol,2,2) = 1. |
|---|
| 761 | else ! low cloud |
|---|
| 762 | cldlayphase(i,ncol,1,2) = 1. |
|---|
| 763 | endif |
|---|
| 764 | |
|---|
| 765 | else |
|---|
| 766 | ! Liquid with temperature below 231,15°K = Ice (false liquid) |
|---|
| 767 | tmpi(i,ncol,nlev)=tmp(i,nlev) |
|---|
| 768 | lidarcldphase(i,nlev,1)=lidarcldphase(i,nlev,1)+1. ! false liq ==> ice |
|---|
| 769 | lidarcldphase(i,nlev,4)=lidarcldphase(i,nlev,4)+1. ! false liq ==> ice |
|---|
| 770 | |
|---|
| 771 | cldlayphase(i,ncol,4,4) = 1. ! tot cloud |
|---|
| 772 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 773 | cldlayphase(i,ncol,3,4) = 1. |
|---|
| 774 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 775 | cldlayphase(i,ncol,2,4) = 1. |
|---|
| 776 | else ! low cloud |
|---|
| 777 | cldlayphase(i,ncol,1,4) = 1. |
|---|
| 778 | endif |
|---|
| 779 | |
|---|
| 780 | cldlayphase(i,ncol,4,1) = 1. ! tot cloud |
|---|
| 781 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 782 | cldlayphase(i,ncol,3,1) = 1. |
|---|
| 783 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 784 | cldlayphase(i,ncol,2,1) = 1. |
|---|
| 785 | else ! low cloud |
|---|
| 786 | cldlayphase(i,ncol,1,1) = 1. |
|---|
| 787 | endif |
|---|
| 788 | |
|---|
| 789 | endif |
|---|
| 790 | endif ! end of discrimination condition |
|---|
| 791 | |
|---|
| 792 | toplvlsat=0 |
|---|
| 793 | |
|---|
| 794 | ! Find the level of the highest cloud with SR>30 |
|---|
| 795 | if(x(i,ncol,nlev).gt.S_cld_att)then ! SR > 30. |
|---|
| 796 | toplvlsat=nlev-1 |
|---|
| 797 | goto 99 |
|---|
| 798 | endif |
|---|
| 799 | |
|---|
| 800 | endif ! end of cloud condition |
|---|
| 801 | enddo ! end of altitude loop |
|---|
| 802 | |
|---|
| 803 | 99 continue |
|---|
| 804 | |
|---|
| 805 | !____________________________________________________________________________________________________ |
|---|
| 806 | ! |
|---|
| 807 | ! Undefined phase: For a cloud located below another cloud with SR>30 |
|---|
| 808 | ! see Cesana and Chepfer 2013 Sect.III.2 |
|---|
| 809 | !____________________________________________________________________________________________________ |
|---|
| 810 | ! |
|---|
| 811 | if(toplvlsat.ne.0)then |
|---|
| 812 | do nlev=toplvlsat,1,-1 |
|---|
| 813 | p1 = pplay(i,nlev) |
|---|
| 814 | if(cldy(i,ncol,nlev).eq.1.)then |
|---|
| 815 | lidarcldphase(i,nlev,3)=lidarcldphase(i,nlev,3)+1. |
|---|
| 816 | tmpu(i,ncol,nlev)=tmp(i,nlev) |
|---|
| 817 | |
|---|
| 818 | cldlayphase(i,ncol,4,3) = 1. ! tot cloud |
|---|
| 819 | if ( p1.gt.0. .and. p1.lt.(440.*100.)) then ! high cloud |
|---|
| 820 | cldlayphase(i,ncol,3,3) = 1. |
|---|
| 821 | else if(p1.ge.(440.*100.) .and. p1.lt.(680.*100.)) then ! mid cloud |
|---|
| 822 | cldlayphase(i,ncol,2,3) = 1. |
|---|
| 823 | else ! low cloud |
|---|
| 824 | cldlayphase(i,ncol,1,3) = 1. |
|---|
| 825 | endif |
|---|
| 826 | |
|---|
| 827 | endif |
|---|
| 828 | enddo |
|---|
| 829 | endif |
|---|
| 830 | |
|---|
| 831 | toplvlsat=0 |
|---|
| 832 | |
|---|
| 833 | enddo |
|---|
| 834 | enddo |
|---|
| 835 | |
|---|
| 836 | |
|---|
| 837 | |
|---|
| 838 | !____________________________________________________________________________________________________ |
|---|
| 839 | ! |
|---|
| 840 | ! Computation of final cloud phase diagnosis |
|---|
| 841 | !____________________________________________________________________________________________________ |
|---|
| 842 | ! |
|---|
| 843 | |
|---|
| 844 | ! Compute the Ice percentage in cloud = ice/(ice+liq) as a function |
|---|
| 845 | ! of the occurrences |
|---|
| 846 | lidarcldphasetmp(:,:)=lidarcldphase(:,:,1)+lidarcldphase(:,:,2); |
|---|
| 847 | WHERE (lidarcldphasetmp(:,:).gt. 0.) |
|---|
| 848 | lidarcldphase(:,:,6)=lidarcldphase(:,:,1)/lidarcldphasetmp(:,:) |
|---|
| 849 | ELSEWHERE |
|---|
| 850 | lidarcldphase(:,:,6) = undef |
|---|
| 851 | ENDWHERE |
|---|
| 852 | |
|---|
| 853 | ! Compute Phase 3D Cloud Fraction |
|---|
| 854 | WHERE ( nsub(:,:).gt.0.0 ) |
|---|
| 855 | lidarcldphase(:,:,1)=lidarcldphase(:,:,1)/nsub(:,:) |
|---|
| 856 | lidarcldphase(:,:,2)=lidarcldphase(:,:,2)/nsub(:,:) |
|---|
| 857 | lidarcldphase(:,:,3)=lidarcldphase(:,:,3)/nsub(:,:) |
|---|
| 858 | lidarcldphase(:,:,4)=lidarcldphase(:,:,4)/nsub(:,:) |
|---|
| 859 | lidarcldphase(:,:,5)=lidarcldphase(:,:,5)/nsub(:,:) |
|---|
| 860 | ELSEWHERE |
|---|
| 861 | lidarcldphase(:,:,1) = undef |
|---|
| 862 | lidarcldphase(:,:,2) = undef |
|---|
| 863 | lidarcldphase(:,:,3) = undef |
|---|
| 864 | lidarcldphase(:,:,4) = undef |
|---|
| 865 | lidarcldphase(:,:,5) = undef |
|---|
| 866 | ENDWHERE |
|---|
| 867 | |
|---|
| 868 | |
|---|
| 869 | ! Compute Phase low mid high cloud fractions |
|---|
| 870 | do iz = 1, Ncat |
|---|
| 871 | do i=1,Nphase-3 |
|---|
| 872 | do ic = 1, Ncolumns |
|---|
| 873 | cldlayerphase(:,iz,i)=cldlayerphase(:,iz,i) + cldlayphase(:,ic,iz,i) |
|---|
| 874 | cldlayerphasesum(:,iz)=cldlayerphasesum(:,iz)+cldlayphase(:,ic,iz,i) |
|---|
| 875 | enddo |
|---|
| 876 | enddo |
|---|
| 877 | enddo |
|---|
| 878 | |
|---|
| 879 | do iz = 1, Ncat |
|---|
| 880 | do i=4,5 |
|---|
| 881 | do ic = 1, Ncolumns |
|---|
| 882 | cldlayerphase(:,iz,i)=cldlayerphase(:,iz,i) + cldlayphase(:,ic,iz,i) |
|---|
| 883 | enddo |
|---|
| 884 | enddo |
|---|
| 885 | enddo |
|---|
| 886 | |
|---|
| 887 | ! Compute the Ice percentage in cloud = ice/(ice+liq) |
|---|
| 888 | cldlayerphasetmp(:,:)=cldlayerphase(:,:,1)+cldlayerphase(:,:,2) |
|---|
| 889 | WHERE (cldlayerphasetmp(:,:).gt. 0.) |
|---|
| 890 | cldlayerphase(:,:,6)=cldlayerphase(:,:,1)/cldlayerphasetmp(:,:) |
|---|
| 891 | ELSEWHERE |
|---|
| 892 | cldlayerphase(:,:,6) = undef |
|---|
| 893 | ENDWHERE |
|---|
| 894 | |
|---|
| 895 | do i=1,Nphase-1 |
|---|
| 896 | WHERE ( cldlayerphasesum(:,:).gt.0.0 ) |
|---|
| 897 | cldlayerphase(:,:,i) = (cldlayerphase(:,:,i)/cldlayerphasesum(:,:)) * cldlayer(:,:) |
|---|
| 898 | ENDWHERE |
|---|
| 899 | enddo |
|---|
| 900 | |
|---|
| 901 | |
|---|
| 902 | do i=1,Npoints |
|---|
| 903 | do iz=1,Ncat |
|---|
| 904 | checkcldlayerphase=0. |
|---|
| 905 | checkcldlayerphase2=0. |
|---|
| 906 | |
|---|
| 907 | if (cldlayerphasesum(i,iz).gt.0.0 )then |
|---|
| 908 | do ic=1,Nphase-3 |
|---|
| 909 | checkcldlayerphase=checkcldlayerphase+cldlayerphase(i,iz,ic) |
|---|
| 910 | enddo |
|---|
| 911 | checkcldlayerphase2=cldlayer(i,iz)-checkcldlayerphase |
|---|
| 912 | if( (checkcldlayerphase2.gt.0.01).or.(checkcldlayerphase2.lt.-0.01) ) print *, checkcldlayerphase,cldlayer(i,iz) |
|---|
| 913 | |
|---|
| 914 | endif |
|---|
| 915 | |
|---|
| 916 | enddo |
|---|
| 917 | enddo |
|---|
| 918 | |
|---|
| 919 | do i=1,Nphase-1 |
|---|
| 920 | WHERE ( nsublayer(:,:).eq.0.0 ) |
|---|
| 921 | cldlayerphase(:,:,i) = undef |
|---|
| 922 | ENDWHERE |
|---|
| 923 | enddo |
|---|
| 924 | |
|---|
| 925 | |
|---|
| 926 | |
|---|
| 927 | ! Compute Phase 3D as a function of temperature |
|---|
| 928 | do nlev=1,Nlevels |
|---|
| 929 | do ncol=1,Ncolumns |
|---|
| 930 | do i=1,Npoints |
|---|
| 931 | do itemp=1,Ntemp |
|---|
| 932 | if(tmpi(i,ncol,nlev).gt.0.)then |
|---|
| 933 | if( (tmpi(i,ncol,nlev).ge.tempmod(itemp)).and.(tmpi(i,ncol,nlev).lt.tempmod(itemp+1)) )then |
|---|
| 934 | lidarcldtemp(i,itemp,2)=lidarcldtemp(i,itemp,2)+1. |
|---|
| 935 | endif |
|---|
| 936 | elseif(tmpl(i,ncol,nlev).gt.0.)then |
|---|
| 937 | if( (tmpl(i,ncol,nlev).ge.tempmod(itemp)).and.(tmpl(i,ncol,nlev).lt.tempmod(itemp+1)) )then |
|---|
| 938 | lidarcldtemp(i,itemp,3)=lidarcldtemp(i,itemp,3)+1. |
|---|
| 939 | endif |
|---|
| 940 | elseif(tmpu(i,ncol,nlev).gt.0.)then |
|---|
| 941 | if( (tmpu(i,ncol,nlev).ge.tempmod(itemp)).and.(tmpu(i,ncol,nlev).lt.tempmod(itemp+1)) )then |
|---|
| 942 | lidarcldtemp(i,itemp,4)=lidarcldtemp(i,itemp,4)+1. |
|---|
| 943 | endif |
|---|
| 944 | endif |
|---|
| 945 | enddo |
|---|
| 946 | enddo |
|---|
| 947 | enddo |
|---|
| 948 | enddo |
|---|
| 949 | |
|---|
| 950 | ! Check temperature cloud fraction |
|---|
| 951 | do i=1,Npoints |
|---|
| 952 | do itemp=1,Ntemp |
|---|
| 953 | checktemp=lidarcldtemp(i,itemp,2)+lidarcldtemp(i,itemp,3)+lidarcldtemp(i,itemp,4) |
|---|
| 954 | |
|---|
| 955 | if(checktemp.NE.lidarcldtemp(i,itemp,1))then |
|---|
| 956 | print *, i,itemp |
|---|
| 957 | print *, lidarcldtemp(i,itemp,1:4) |
|---|
| 958 | endif |
|---|
| 959 | |
|---|
| 960 | enddo |
|---|
| 961 | enddo |
|---|
| 962 | |
|---|
| 963 | ! Compute the Ice percentage in cloud = ice/(ice+liq) |
|---|
| 964 | ! sumlidarcldtemp=sum(lidarcldtemp(:,:,2:3),3) |
|---|
| 965 | sumlidarcldtemp(:,:)=lidarcldtemp(:,:,2)+lidarcldtemp(:,:,3) |
|---|
| 966 | |
|---|
| 967 | WHERE(sumlidarcldtemp(:,:)>0.) |
|---|
| 968 | lidarcldtemp(:,:,5)=lidarcldtemp(:,:,2)/sumlidarcldtemp(:,:) |
|---|
| 969 | ELSEWHERE |
|---|
| 970 | lidarcldtemp(:,:,5)=undef |
|---|
| 971 | ENDWHERE |
|---|
| 972 | |
|---|
| 973 | do i=1,4 |
|---|
| 974 | WHERE(lidarcldtempind(:,:).gt.0.) |
|---|
| 975 | lidarcldtemp(:,:,i) = lidarcldtemp(:,:,i)/lidarcldtempind(:,:) |
|---|
| 976 | ELSEWHERE |
|---|
| 977 | lidarcldtemp(:,:,i) = undef |
|---|
| 978 | ENDWHERE |
|---|
| 979 | enddo |
|---|
| 980 | |
|---|
| 981 | RETURN |
|---|
| 982 | END SUBROUTINE COSP_CLDFRAC |
|---|
| 983 | ! --------------------------------------------------------------- |
|---|
| 984 | |
|---|
| 985 | |
|---|
| 986 | END MODULE MOD_LMD_IPSL_STATS |
|---|
