Default Flux Output Files - Image Driver¶
The primary output file type for the VIC Classic Driver is the flux file, which contains information about moisture and energy fluxes for each time step. The number of variables in this file depends on the values of FULL_ENERGY and FROZEN_SOIL in the global parameter file; when either FULL_ENERGY or FROZEN_SOIL are true, the file will contain the same number of variables as found in the PILPS-2C files for comparison purposes. Flux files are always written, regardless of the mode of operation. Flux file name is fluxes.**.nc
, where **
is determined by AGGFREQ variable specified in the global parameter file.
The default flux output file is in netCDF format, with the same data structure described in the image driver output format. the list of default flux variables are:
Variable Name | Dimension | Units | Description |
---|---|---|---|
OUT_PREC | [time, lat, lon] | mm | Precipitation for current record |
OUT_EVAP | [time, lat, lon] | mm | Evaporation for current record |
OUT_RUNOFF | [time, lat, lon] | mm | Runoff for current record |
OUT_BASEFLOW | [time, lat, lon] | mm | Baseflow for current record |
OUT_WDEW | [time, lat, lon] | mm | Canopy interception of liquid water |
OUT_SOIL_LIQ | [time, nlayer, lat, lon] | mm | Moisture content of each soil layer |
OUT_RAD_TEMP | [time, lat, lon] | K | Radiative temperature of the surface (NOTE: only output when FULL_ENERGY or FROZEN_SOIL is TRUE in the global parameter file) |
OUT_SWNET | [time, lat, lon] | W/m2 | Net shortwave radiation at the surface |
OUT_R_NET | [time, lat, lon] | W/m2 | Net radiation at the surface, includes long and shortwave radiation |
OUT_LATENT | [time, lat, lon] | W/m2 | Latent heat from the surface (NOTE: only output when FULL_ENERGY or FROZEN_SOIL is TRUE in the global parameter file) |
OUT_EVAP_CANOP | [time, lat, lon] | mm | Evaporation from canopy storage |
OUT_TRANSP_VEG | [time, lat, lon] | mm | Transpiration from the vegetation |
OUT_EVAP_BARE | [time, lat, lon] | mm | Evaporation from bare soil |
OUT_SUB_CANOP | [time, lat, lon] | mm | Sublimation from canopy interception |
OUT_SUB_SNOW | [time, lat, lon] | mm | Sublimation from ground snow pack |
OUT_SENSIBLE | [time, lat, lon] | W/m2 | Sensible heat flux from the surface (NOTE: only output when FULL_ENERGY or FROZEN_SOIL is TRUE in the global parameter file) |
OUT_GRND_FLUX | [time, lat, lon] | W/m2 | Ground heat flux plus heat storage in the top soil layer |
OUT_DELTAH | [time, lat, lon] | W/m2 | Rate of change in heat storage |
OUT_FUSION | [time, lat, lon] | W/m2 | Net energy used to melt/freeze soil moisture |
OUT_AERO_RESIST | [time, lat, lon] | s/m | Aerodynamic resistance |
OUT_SURF_TEMP | [time, lat, lon] | C | Surface temperature |
OUT_ALBEDO | [time, lat, lon] | fraction | Albedo of surface cover |
OUT_REL_HUMID | [time, lat, lon] | fraction | Relative humidity |
OUT_IN_LONG | [time, lat, lon] | W/m2 | Incoming longwave at ground surface (under vegetation) |
OUT_AIR_TEMP | [time, lat, lon] | C | Air temperature |
OUT_WIND | [time, lat, lon] | m/s | Near surface wind speed |