According to BAMS paper, temperature tendency by physics, non-physics, and radiation (GRIB Table 2 #215-217) are available as reanalysis products. Where are they?
[6/19/96] Since GRIB ID 215 through 217 can be computed from other heatings in reanalysis grb3D diagnostic file, they are not provided. • How are vertical diffusion parameters (GRIB Table 2 #246-248) calculated? [6/19/96] They are picked up and accumulated in the forecast model as they are computed every time step. The vertical diffusion coefficients are the function of the Richardson number, and the formulation is based on Miyakoda and Sirutis (1986). Unfortunately it is not easy to obtain this paper. If you need more details, please contact Kanamitsu. • Does reanalysis GRIB data files follow a fixed record/order pattern? [6/19/96] No. There is no definite structure in data record/order in reanalysis GRIB data files. User should select a GRIB record according to its Product Definition Section. • How is the tropopause level calculated in the reanalysis? [6/19/96] The model level analyses are used to calculate tropopause data. (A post processor is used). The procedure at NCEP looks for
