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Verify quality of solar & meteo measurements
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Data parameters

Meteorological parameters

GHI Global horizontal irradiation kWh/m2  
DIF Diffuse horizontal irradiation kWh/m2  
DNI Direct normal irradiation kWh/m2  
GTI Global tilted irradiation kWh/m2  
TEMP Air temperature at 2 meters °C / °F  
PVOUT PV cSi yield kWh Calculated photovoltaic electricity (AC) delivered by the total installed capacity of a PV system.
WS Wind speed m/s at 10 m above ground m/s  
WD Wind direction at 10 m above ground °  
WG Wind guts at 10 m above ground m/s  
RH Relative humidity at 2m above ground %  
AP Atmospheric pressure hPa  
PWAT Precipitable water kg/m2 Precipitable water is the depth of water vapour in a column of the atmosphere, if all the water in that column were precipitated as rain. It indicates the amount of moisture above ground.
PREC Precipitation (rainfall) mm  
SDWE Snow depth water equivalent mm  


Additional parameters

ELE Elevation m Elevation above sea level
SE Solar elevation °  
SA Solar azimuth °  


Temporal resolution

Primary data 10/15-minute step (depending on satellite mission and region)
Aggregated data hourly, daily, monthly, yearly

Geographical and temporal coverage

Solargis NOWCAST NWP FORECAST coverage map v202402a