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SURFEX v7.3
General documentation of Surfex
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SURFEX v7.3
General documentation of Surfex
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00001 !! ######################## 00002 MODULE MODE_DSLT_SURF 00003 !! ######################## 00004 !! 00005 ! 00006 USE YOMHOOK ,ONLY : LHOOK, DR_HOOK 00007 USE PARKIND1 ,ONLY : JPRB 00008 ! 00009 IMPLICIT NONE 00010 ! 00011 CONTAINS 00012 !! 00013 !! ############################################################ 00014 SUBROUTINE MASSFLUX2MOMENTFLUX( & 00015 PFLUX, & ! [kg/m2/s] for M3, zero for other] 00016 PRHODREF, & ! [kg/m3] air density 00017 PEMISRADIUS, & ! [um] emitted radius for the different modes 00018 PEMISSIG, & ! [-] emitted sigma for the different modes 00019 KMDE, & 00020 PCONVERTFACM0, & 00021 PCONVERTFACM6, & 00022 PCONVERTFACM3, & 00023 OVARSIG, & 00024 ORGFIX & 00025 ) 00026 !! ############################################################ 00027 !! 00028 !! PURPOSE 00029 !! ------- 00030 !! Transform emissions in mass (kg/m2/sec) to emissions of moments which have 00031 !! a bit strange units 00032 !! MESONH carries the following units during transport: 00033 !! M0=#/molec_{air} 00034 !! M3=molec_{dst}/molec_{air} 00035 !! M6=um6/molec_{air}*1.d6 00036 !! The surface model should have (for dust) 00037 !! M0=#/m3*[kg_{dst}/mole_{dst}/XAVOGADRO] 00038 !! M3=kg/m3 00039 !! M6=um6/m3 00040 !! 00041 !! REFERENCE 00042 !! --------- 00043 !! Tulet et al, ORILAM manuscript for transformation of modal parameters 00044 !! J. Geophys. Res., 110, D18201, doi:10.1029/2004JD005716 00045 !! 00046 !! AUTHOR 00047 !! ------ 00048 !! Alf Grini and Pierre TULET (CNRM/GMEI) 00049 !! 00050 !! MODIFICATIONS 00051 !! ------------- 00052 !! none 00053 !! 00054 !! EXTERNAL 00055 !! -------- 00056 !! None 00057 !! 00058 IMPLICIT NONE 00059 !! 00060 !------------------------------------------------------------------------------- 00061 ! 00062 !* 0. DECLARATIONS 00063 ! ------------ 00064 ! 00065 !* 0.1 declarations of arguments 00066 ! 00067 REAL, DIMENSION(:,:), INTENT(INOUT) :: PFLUX !In; kg/m2/s (index #2, #5, #8 etc) 00068 !Out: mole particles per mole air m/s *(MWdst/MWair*rhoair)(index #1) 00069 !Out: kg/m2/s (index #2) 00070 !Out: moles m6/moles air m/s *(MWdst/MWair*rhoair)(index #3) 00071 REAL, DIMENSION(:), INTENT(IN) :: PRHODREF !I [kg/m3] density of air 00072 REAL, DIMENSION(:), INTENT(IN) :: PEMISRADIUS !I [um] emitted radius 00073 REAL, DIMENSION(:), INTENT(IN) :: PEMISSIG !I [-] emitted sigma for the modes 00074 INTEGER, INTENT(IN) :: KMDE 00075 REAL, INTENT(IN) :: PCONVERTFACM0 00076 REAL, INTENT(IN) :: PCONVERTFACM6 00077 REAL, INTENT(IN) :: PCONVERTFACM3 00078 LOGICAL, INTENT(IN) :: OVARSIG 00079 LOGICAL, INTENT(IN) :: ORGFIX 00080 ! 00081 !* 0.2 declarations local variables 00082 ! 00083 REAL,DIMENSION(SIZE(PFLUX,1),3) :: ZFM !Intermediate variable to get moments 00084 ! 00085 INTEGER :: JMODE ! Counter for dust modes 00086 INTEGER :: JSV_IDX ! Counter for dust scalar variables 00087 REAL(KIND=JPRB) :: ZHOOK_HANDLE 00088 ! 00089 !------------------------------------------------------------------------------- 00090 ! 00091 !MESONH carries the following units during transport: 00092 !M0=#/molec_{air} 00093 !M3=molec_{dst}/molec_{air} 00094 !M6=um6/molec_{air}*1.d6 00095 00096 !The surface should get the following units 00097 !M0=#/m3*MW_DST/XAVOGADRO 00098 !M3=kg/m3 00099 !M6=um6/m3*1.d6 MW_DST/XAVOGADRO 00100 00101 !Emissions of dust are in kg/m2/sec for mode 3 at this point 00102 00103 !Factor which is needed so that all gains normal units when leaving ground paramn 00104 IF (LHOOK) CALL DR_HOOK('MODE_DSLT_SURF:MASSFLUX2MOMENTFLUX',0,ZHOOK_HANDLE) 00105 00106 !Initialize initermediate moments 00107 ZFM(:,:)=0. 00108 00109 DO JMODE=1,KMDE 00110 00111 !Make index which is 0 for first mode, 3 for second, 6 for third etc 00112 IF (OVARSIG) THEN 00113 JSV_IDX = (JMODE-1)*3 00114 ELSE IF (ORGFIX) THEN 00115 JSV_IDX = JMODE-2 00116 ELSE 00117 JSV_IDX = (JMODE-1)*2 00118 END IF 00119 00120 !IN THIS VERSION, MASS FLUX (kg/m2/sec) IS SENT IN INDEX #2, #5, #8 if 3 moments per mode 00121 !IF TWO MOMENTS PER MODE, MASS FLUX IS SENT AS INDEX #2, #4, #6 00122 00123 !Get flux of number in #/m2/sec from flux of mass in kg/m2/sec 00124 ZFM(:,1) = PFLUX(:,JSV_IDX+2) & ! kg_{dst}/m2/sec 00125 / PEMISRADIUS(JMODE)**3 & ! *um^{-3} ==> #/m2/sec*(m3/um3) 00126 * EXP(-4.5*(LOG(PEMISSIG(JMODE)))**2) & ! Take into account size distribution 00127 / PCONVERTFACM3 ! /(kg_{dst}/m^{3}_{dst)} ==> m^3_{dst}/m2/sec 00128 00129 00130 ! Get flux of moment 6 consistent with the other moments 00131 ZFM(:,3) = ZFM(:,1) & ! [#/m3] 00132 * (PEMISRADIUS(JMODE)**6) & ! *um6 ==> um6/m2/sec 00133 * EXP(18. *(LOG(PEMISSIG(JMODE)))**2) ! Take into account size distribution 00134 00135 !Get flux of Moment 0 in transport units 00136 IF (.NOT.ORGFIX) THEN 00137 PFLUX(:,JSV_IDX+1) = ZFM(:,1) & ! particles/m^2/sec 00138 * PCONVERTFACM0 ! ==> particles/m2/sec * kg_dst/m3_{air} 00139 END IF 00140 00141 ! Flux moment 6 00142 IF (OVARSIG) THEN 00143 PFLUX(:,JSV_IDX+3) = ZFM(:,3) & ! um^6/m^2/sec 00144 * PCONVERTFACM6 ! ==> 00145 ENDIF 00146 00147 !Multiply with molecular weights so that you get back the units described above when 00148 !when multiply with the opposite variable in ground_paramn.f90 00149 !PFLUX(:,JSV_IDX+1) = PFLUX(:,JSV_IDX+1) * 100.E-3 * PRHODREF(:) / ZMD !#_{aer}/molec_{air} m/s * kg_{aer}/m^3_{air} 00150 !IF (LVARSIG) PFLUX(:,JSV_IDX+3) = PFLUX(:,JSV_IDX+3) * 100.E-3 * PRHODREF(:) / ZMD !um^6_{aer}/molec_{air}*cm^3/m^3 m/s kg_{aer}/m^3_{air} 00151 ! 00152 ! 00153 ENDDO !Loop on modes 00154 ! 00155 IF (LHOOK) CALL DR_HOOK('MODE_DSLT_SURF:MASSFLUX2MOMENTFLUX',1,ZHOOK_HANDLE) 00156 ! 00157 END SUBROUTINE MASSFLUX2MOMENTFLUX 00158 00159 !********************************************************************** 00160 !********************************************************************** 00161 !********************************************************************** 00162 00163 SUBROUTINE DSLTMOMENT2SIZE( & 00164 PSVT, & !I [XX/m3] input scalar variables (moment of distribution) 00165 PRHODREF, & !I [kg/m3] density of air 00166 PEMISRADIUS, & ![um] emitted radius for the different modes 00167 PEMISSIG, & ![-] emitted sigma for the different modes 00168 KM0, & 00169 KM3, & 00170 KM6, & 00171 PCONVERTFACM0, & 00172 PCONVERTFACM6, & 00173 PCONVERTFACM3, & 00174 OVARSIG, & 00175 ORGFIX, & 00176 PSIG1D, & !O [-] standard deviation of aerosol distribution 00177 PRG1D, & !O [um] number median diameter of aerosol distribution 00178 PN1D, & !O [#/m3] number concentration of aerosols 00179 PMASS1D, & !O [kg/m3] mass concentration of aerosol 00180 PM1D & !O aerosols moments 0, 3 and 6 00181 ) 00182 !! ############################################################ 00183 !! 00184 !! PURPOSE 00185 !! ------- 00186 !! Translate the three moments M0, M3 and M6 given in ppp into 00187 !! Values which can be understood more easily (R, sigma, N, M) 00188 !! At this point, M3 is in kg/m3, M0 in #/m3*(kg_{dst}/mole), M6 in um6/m3*1.d6*(kg_{dst}/mole) 00189 !! 00190 !! All the moments have been transformed in MESONH (atmospheric model) so that the surface gets 00191 !! M0 [#/m3] *XMOLARWEIGHT_DST/XAVOGADRO 00192 !! M3 [kg/m3] 00193 !! M6 [um6/m3*1.d6] *XMOLARWEIGHT_DST/XAVOGADRO 00194 !! 00195 !! REFERENCE 00196 !! --------- 00197 !! Tulet et al, ORILAM manuscript for transformation of modal parameters 00198 !! J. Geophys. Res., 110, D18201, doi:10.1029/2004JD005716 00199 !! 00200 !! AUTHOR 00201 !! ------ 00202 !! Pierre TULET (LA) 00203 !! 00204 !! MODIFICATIONS 00205 !! ------------- 00206 !! Alf Grini (CNRM) 00207 !! 00208 !! EXTERNAL 00209 !! -------- 00210 !! None 00211 !! 00212 IMPLICIT NONE 00213 !! 00214 !------------------------------------------------------------------------------- 00215 ! 00216 !* 0. DECLARATIONS 00217 ! ------------ 00218 ! 00219 !* 0.1 declarations of arguments 00220 ! 00221 !INPUT 00222 REAL, DIMENSION(:,:), INTENT(IN) :: PSVT !I [ppp] moments in surface units 00223 REAL, DIMENSION(:), INTENT(IN) :: PRHODREF !I [kg/m3] density of air 00224 REAL, DIMENSION(:), INTENT(IN) :: PEMISSIG 00225 REAL, DIMENSION(:), INTENT(IN) :: PEMISRADIUS 00226 INTEGER,DIMENSION(:), INTENT(IN) :: KM0 ! [idx] index for Mode 0 in passed variables 00227 INTEGER,DIMENSION(:), INTENT(IN) :: KM3 ! [idx] indexes for Mode 3 in passed variables 00228 INTEGER,DIMENSION(:), INTENT(IN) :: KM6 ! [idx] indexes for Mode 6 in passed variables 00229 REAL, INTENT(IN) :: PCONVERTFACM0 00230 REAL, INTENT(IN) :: PCONVERTFACM6 00231 REAL, INTENT(IN) :: PCONVERTFACM3 00232 LOGICAL, INTENT(IN) :: OVARSIG 00233 LOGICAL, INTENT(IN) :: ORGFIX 00234 REAL, DIMENSION(:,:), OPTIONAL, INTENT(OUT) :: PSIG1D !O [-] standard deviation 00235 REAL, DIMENSION(:,:), OPTIONAL, INTENT(OUT) :: PRG1D !O [um] number median diameter 00236 REAL, DIMENSION(:,:), OPTIONAL, INTENT(OUT) :: PN1D !O [#/m3] number concentration 00237 REAL, DIMENSION(:,:), OPTIONAL, INTENT(OUT) :: PMASS1D !O [kg_{aer}/m3] mass concentration 00238 REAL, DIMENSION(:,:), OPTIONAL, INTENT(OUT) :: PM1D !O aerosols moments (MESONH units) 00239 ! 00240 !* 0.2 declarations local variables 00241 ! 00242 REAL,DIMENSION(SIZE(PSVT,1), SIZE(PSVT,2)) :: ZSV ! [dusts moment concentration] 00243 REAL,DIMENSION(SIZE(PSVT,1), SIZE(KM0)*3) :: ZM ! [moments] local array for moments 00244 REAL,DIMENSION(SIZE(PSVT,1)) :: ZSIGMA ! [-] standard deviation 00245 REAL,DIMENSION(SIZE(PSVT,1)) :: ZRG ! [um] number median diameter 00246 INTEGER :: JN, J0, J3, J6 ! [idx] loop counters 00247 REAL(KIND=JPRB) :: ZHOOK_HANDLE 00248 ! 00249 ! 1.1 initialisation 00250 ! 00251 !Get the conversion factors 00252 IF (LHOOK) CALL DR_HOOK('MODE_DSLT_SURF:DSLTMOMENT2SIZE',0,ZHOOK_HANDLE) 00253 ! 00254 !Get scalar variable indexes 00255 ! 00256 !Save the moments in a local array 00257 ZSV(:,:) = MAX(PSVT(:,:), 1E-80) 00258 ! 00259 DO JN=1,SIZE(KM0) 00260 00261 J0 = 1 + (JN-1)*3 00262 J3 = 2 + (JN-1)*3 00263 J6 = 3 + (JN-1)*3 00264 00265 !calculate moment 3 from total aerosol mass in kg/m3 ==> um3/m3 00266 ZM(:,J3) = ZSV(:,KM3(JN)) & ! kg_{aer}/m3_{air} 00267 / PCONVERTFACM3 ! ==> m3_{dst}/m3_{air} 00268 00269 IF (OVARSIG) THEN ! give M6 (case of variable standard deviation) 00270 00271 !Get number concentration (#/molec_{air}==>#/m3) 00272 ZM(:,J0) = ZSV(:,KM0(JN)) & ! #/m3air*M_{dst}/avogadro 00273 / PCONVERTFACM0 ! ==> #/m3 00274 00275 !Calculate moment 6 from the sent value 00276 ZM(:,J6) = ZSV(:,KM6(JN)) & ! um6/m3_{air}*(cm3/m3)*M_{dst}/Avogadro 00277 / PCONVERTFACM6 ! ==> um6/m3 00278 00279 !Get sigma (only if sigma is allowed to vary) 00280 !Get intermediate values for sigma M3^2/(M0*M6) (ORILAM paper, eqn 8) 00281 ZSIGMA(:) = ZM(:,J3)**2 / (ZM(:,J0)*ZM(:,J6)) 00282 !Limit the intermediate value, can not be larger than 1 00283 ZSIGMA(:) = MIN(1-1E-10,ZSIGMA(:)) 00284 !Limit the value for intermediate, can not be smaller than 0 00285 ZSIGMA(:) = MAX(1E-10,ZSIGMA(:)) 00286 !Calculate log(sigma) 00287 ZSIGMA(:) = LOG(ZSIGMA(:)) 00288 !Finally get the real sigma the negative sign is because of 00289 !The way the equation is written (M3^2/(M0*M6)) instead of (M0*M6)/M3^3 00290 ZSIGMA(:) = EXP(1./3.*SQRT(-ZSIGMA(:))) 00291 00292 ELSE IF (ORGFIX) THEN ! compute M6 from M3, Rg and SIGMA 00293 00294 !Get the emitted sigma for this mode 00295 ZSIGMA(:) = PEMISSIG(JN) 00296 00297 ZM(:,J0) = ZM(:,J3) / & 00298 ((PEMISRADIUS(KM3(JN))**3)*EXP(4.5 * LOG(ZSIGMA(:))**2)) 00299 00300 ELSE ! compute M6 from M0, M3 and SIGMA 00301 00302 !Get the emitted sigma for this mode 00303 ZSIGMA(:) = PEMISSIG(JN) 00304 00305 !Get number concentration (#/molec_{air}==>#/m3) 00306 ZM(:,J0) = ZSV(:,KM0(JN)) & ! #/m3air*M_{dst}/avogadro 00307 / PCONVERTFACM0 ! ==> #/m3 00308 00309 END IF 00310 00311 !Calculate moment 6 from this emitted sigma 00312 ZM(:,J6) = ZM(:,J0) * ((ZM(:,J3)/ZM(:,J0))**(1./3.) & 00313 * EXP(-(3./2.)*LOG(ZSIGMA(:))**2))**6 & 00314 * EXP(18.*LOG(ZSIGMA(:))**2) 00315 00316 !Get number median radius (eqn. 7 in Orilam manuscript) 00317 ZRG(:) = ((ZM(:,J3)**4) / (ZM(:,J6)*ZM(:,J0)**3)) ** (1./6.) 00318 00319 !Give the sigma-values to the passed array 00320 IF(PRESENT(PSIG1D)) PSIG1D(:,JN) = ZSIGMA(:) 00321 00322 !Set the number concentrations in the passed array 00323 IF(PRESENT(PN1D)) PN1D(:,JN) = ZM(:,J0) 00324 00325 !Get the number median radius 00326 IF(PRESENT(PRG1D)) PRG1D(:,JN)= ZRG(:) 00327 00328 IF(PRESENT(PMASS1D))THEN 00329 PMASS1D(:,JN)= ZM(:,J0) &!#/m^3_{air} 00330 * PCONVERTFACM3 & 00331 * ZRG(:)**3 * EXP(4.5*(LOG(ZSIGMA(:)))**2) 00332 ENDIF 00333 00334 END DO !Loop on modes 00335 00336 IF(PRESENT(PM1D)) PM1D(:,:) = ZM(:,:) 00337 00338 IF (LHOOK) CALL DR_HOOK('MODE_DST_SURF:DUSTMOMENT2SIZE',1,ZHOOK_HANDLE) 00339 ! 00340 ! 00341 END SUBROUTINE DSLTMOMENT2SIZE 00342 00343 00344 END MODULE MODE_DSLT_SURF
1.8.0
