CRTM implementation: CRTM was implemented into NCEP GFS gridpoint statistical interpolation system (GSI)
CRTM developments (August 10, 2006): CRTM has an interface with SARTA. SARTA is a fast gas absorption model that works with the best accuracy with AIRS instrument. It also has trace gas absorption. Tangent linear and adjoint models are also developed for SARTA.