DESCRIPTION OF CHANGES:
Updated the way ICAR computes pressure on the internal grid. Previously, ICAR was selecting the nth forcing level for the nth ICAR level, then using the hydrostatic eqn to adjust pressure for the actual ICAR grid elevation. This was problematic when the forcing data had a very different number of levels. ICAR now searches for the closest level to read pressure from, and adjusts from that level based on the local temperature and humidity. This has greatly improved the correspondance between ICAR pressure, temperature, relative humidity, and the original GCM p,t,rh
TYPE: bug fix
KEYWORDS: pressure, vertical interpolation, forcing
SOURCE: Ethan Gutmann (NCAR)
DESCRIPTION OF CHANGES: Updated the way ICAR computes pressure on the internal grid. Previously, ICAR was selecting the nth forcing level for the nth ICAR level, then using the hydrostatic eqn to adjust pressure for the actual ICAR grid elevation. This was problematic when the forcing data had a very different number of levels. ICAR now searches for the closest level to read pressure from, and adjusts from that level based on the local temperature and humidity. This has greatly improved the correspondance between ICAR pressure, temperature, relative humidity, and the original GCM p,t,rh