Convection Schemes


RASC1 vs RASC2

RASC1 : Detrained cloud water is calculated from the amount of evaporation at the top of convective cloud in original RAS.
RASC2 : Detrained cloud water is calculated from the amount of evaporation at the top of convective cloud in RAS version2 (RASV2). In RASV2, conversion of cloud water to convective rain in convection is parameterized as detailed.

RASC2 may be more expensive than RASC1.

Moorthi, S., and M.J. Suarez, 1992: Relaxed Arakawa-Schubert. A Parameterization of Moist Convection for General Circulation Models. Mon. Wea. Rev., 120, 978–1002.

[Thanks to Aki for this part]

Discussions

juliavm

compiling RSM with the modified Zhang McFarlane scheme

juliavm 18 March 2009 20:47:17

Hello,

I am trying to compile RSM on NCAR Bluefire machine with the ZM2 scheme. I am getting the error messages below during the compilation of "zm_conv_driver.f".

Thank you in advance for your help,

Julia


1501-510 Compilation successful for file zm_conv.f.
sed '/<paramodel.h>/{G;s/$/#undef MP/;}' zm_conv_driver.F | sed '/<define.h>/{G;s/$/#undef MP/;}' >TEMP.F
/usr/ccs/lib/cpp -P -I../.. -I../include TEMP.F >zm_conv_driver.i
sed '/^ *$/d' zm_conv_driver.i >zm_conv_driver.f ; rm zm_conv_driver.i TEMP.F
xlf95_r -O3 -qarch=auto -qstrict -qrealsize=8 -qnosave -qmaxmem=-1 -qfixed=132 -c zm_conv_driver.f
"zm_conv_driver.f", line 196.7: 1516-025 (S) Too few subscripts specified for array state%q.
"zm_conv_driver.f", line 196.32: 1516-025 (S) Too few subscripts specified for array state%q.
"zm_conv_driver.f", line 197.20: 1516-025 (S) Too few subscripts specified for array ptend%q.
"zm_conv_driver.f", line 235.24: 1516-025 (S) Too few subscripts specified for array state%q.
"zm_conv_driver.f", line 235.40: 1516-025 (S) Too few subscripts specified for array ptend%q.
    • zm_conv_driver === End of Compilation 1 ===
1501-511 Compilation failed for file zm_conv_driver.f.
make: The error code from the last command is 1.


Stop.
make: The error code from the last command is 8.


Stop.
make: The error code from the last command is 8.


Stop.

kei
kei 19 March 2009 06:12:26

Hi Julia,

This is a compiler dependent bug. Please amend 6 parts by adding third dimension to "q" variable as below. I also committed the fixed code to cvs server. Thanks for your report.

Kei

=

diff -r1.2 zm_conv_driver.F
205,206c205,206
< state%q(1:imx2,1:pver) = state%q(1:imx2,1:pver)
< 1 + ptend%q(1:imx2,1:pver) * dt2
---
  • state%q(1:imx2,1:pver,1) = state%q(1:imx2,1:pver,1)
  • 1 + ptend%q(1:imx2,1:pver,1) * dt2
247c247
< q1(i,k) = state%q(i,kk) + ptend%q(i,kk) * dt2
---
  • q1(i,k) = state%q(i,kk,1) + ptend%q(i,kk,1) * dt2
301c301
< $ ptend%s(i,k)*rcp,ptend%q(i,k)
---
  • $ ptend%s(i,k)*rcp,ptend%q(i,k,1)