C1.2 Main File Surface/Flux (_FLX_)
see also: Main File Atmosphere (_ATM_), Main File Soil (_SOI_)
4Overview all output files , Overview Main Files
This section describes the different data field stored in the main file for the surface and fluxes at the surface (..._FLX_...).
This file is only two-dimensional with a constant z=0.
The data stored in the .EDT files are in binary format and can be extracted using LEONARDO or XTract.
FIELD UNIT MEANING
z_topo m Absolute height of model ground surface (always 0 in recent version)
T Surface K Ground surface temperature
T Surface Diff K Difference of ground surface to reference surface
T Surface change K/h Change of ground surface temperature
q Surface g/kg Specific humidity of surface (availabe vapour)
uv above surface m/s Wind speed at the first grid level above ground surface
Sensible heat flux W/m² Sensible heat flux into the air (+: towards air)
Exchange coef. heat m²/s Exchange coefficient for heat between sruface and air
Latent heat flux W/m² Sensible heat flux into the air (+: towards air)
Soil heat flux W/m² Heat flux into soil (+: directed towards deeper layers)
Sw direct radiation W/m² Direct shortwave radiation reaching ground surface
Sw diffuse radiation W/m² Diffuse shortwave radiation reaching ground surface
Lambert factor 0..1 Value of Lambert's law for solar angle
Longwave radiation bud. W/m² Longwave radiation budget of ground surface
Longwave rad. from vegetation W/m² Longwave radiation received from vegetation layers above (see remark)
Longwave rad. from environment W/m² Longwave radiation received from buildings (see remark)
Water flux g/(m²s) Water flux from/to the ground surface
Sky-View Factor 0..1 Sky View factor for z=0 (buildings only counted)
Building height m Height of building top (0 if no building assigned)
Surface albedo 0..1 Albedo of ground surface (see remark)
Deposition speed mm/s Deposition flux of analysed pollutant component
Mass deposed µg/m² Mass deposed at ground surface in µg
(Version 24-Mar-06)