Changeset 3968 for trunk/LMDZ.GENERIC/changelog.txt

Timestamp:

Nov 20, 2025, 4:23:54 PM (5 days ago)

Author:

gmilcareck

Message:

Generic PCM:
Fix bug and incorrect data and cleanup calc_rayleigh.F90.

• [minor] Fix a very minor bug for reference pressure and temperature.

The same reference temperature and pressure was used for all gases
instead of use the one for each gas. But no impact on simulations is expected
because all gases have almost the same reference T/P.

• [major] Data for H2O and O2 refractive index was incorrect on the reference paper. It is now fixed.
• To remove singularities at wavenumber > 60000 cm-1 on some gases, we add extrapolated formula of refractive index at these wavenumbers. However, we keep the safety check strictboundrayleigh to remember that data is extrapolated after 60000 cm-1. So now, you can use rayleigh scattering at wavenumber > 60000 cm-1 but keep on mind that this is extrapolated data. Nobody knows what is going on at these wavenumbers (but Nobody is lost at sea with his crew).

GM

File:

• trunk/LMDZ.GENERIC/changelog.txt (modified) (1 diff)

trunk/LMDZ.GENERIC/changelog.txt

@@ -2129 +2129 @@
 Minor fix in start2archive: the dimension for albedoS (albedo recasted on the
 dynamics scalar grid) shoudld be ip1jmp1.
+
+== 20/11/2025 == GM
+Generic PCM:
+Fix bug and incorrect data and cleanup calc_rayleigh.F90.
+- [minor] Fix a very minor bug for reference pressure and temperature. 
+   The same reference temperature and pressure was used for all gases
+   instead of use the one for each gas. But no impact on simulations is expected
+   because all gases have almost the same reference T/P.
+- [major] Data for H2O and O2 refractive index was incorrect on the reference paper. 
+  It is now fixed.
+- To remove singularities at wavenumber > 60000 cm-1 on some gases, 
+  we add extrapolated formula of refractive index at these wavenumbers.
+  However, we keep the safety check strictboundrayleigh to remember that
+  data is extrapolated after 60000 cm-1.
+  So now, you can use rayleigh scattering at wavenumber > 60000 cm-1 but
+  keep on mind that this is extrapolated data. Nobody knows what is going on
+  at these wavenumbers (but Nobody is lost at sea with his crew).