Technical Report No. ? - DKRZ

DKRZ GRIB/EXTRA Format Module Documentation
IV. For description of soil temperatures see section 3.7.2
V. The planetary albedo (code 380 and 381, respectively for clear sky) equals zero, if the numerator is zero.
Calculate albedos only from temporal or eventually spatial mean fluxes. The global mean results
from the glogal mean of fluxes !
Note: For a description of method I and method II of calculating clear sky diagnostics and cloud forcing
refer to DKRZ Technical Report No. 6, The ECHAM3 Atmosphere Model, Appendix F.
T s
T Sn
T D3
T D4
T D5
T D
T DCL
surface temperature (interface to the atmosphere)
snow temperature
soil temperatures
Figure 1 Description of soil temperatures in the ECHAM model. 1
For detailed description of soil processes refer to DKRZ Technical Report No. 6, The
ECHAM3 Atmosphere Model, section 3.13 .
1. Note that the surface temperature T s is always the interface temperature to the atmosphere even in
snow coverded areas.
PAGE 3.3.7