​List of Parameters

The following three tables list the parameters available for Climate, Forecast, and Observation, respectively.

​Climate

Code	Description	Unit
global_horizontal_irradiance	Global horizontal irradiance	W/m**2
global_horizontal_irradiance_with_shading	Global horizontal irradiance with shading taken into account	W/m**2
direct_horizontal_irradiance	Direct horizontal irradiance	W/m**2
direct_horizontal_irradiance_with_shading	Direct horizontal irradiance with shading taken into account	W/m**2
diffuse_horizontal_irradiance	Diffuse horizontal irradiance	W/m**2
diffuse_horizontal_irradiance_with_shading	Diffuse horizontal irradiance with shading taken into account	W/m**2
direct_normal_irradiance	Direct normal irradiance	W/m**2
direct_normal_irradiance_with_shading	Direct normal irradiance with shading taken into account	W/m**2
global_tilted_irradiance	Global tilted irradiance	W/m**2
global_tilted_irradiance_with_shading	Global tilted irradiance with shading taken into account	W/m**2
direct_tilted_irradiance	Direct tilted irradiance	W/m**2
direct_tilted_irradiance_with_shading	Direct tilted irradiance with shading taken into account	W/m**2
diffuse_tilted_irradiance	Diffuse tilted irradiance	W/m**2
diffuse_tilted_irradiance_with_shading	Diffuse tilted irradiance with shading taken into account	W/m**2
pv_production	Power output per kWp installed	Wh/kWp
pv_production_with_shading	Power output per kWp installed, with shading taken into account	Wh/kWp
global_clear_sky_irradiance	Global horizontal clear sky irradiance	W/m**2
direct_horizontal_clear_sky_irradiance	Direct horizontal clear sky irradiance	W/m**2
diffuse_clear_sky_irradiance	Diffuse horizontal clear sky irradiance	W/m**2
direct_normal_clear_sky_irradiance	Direct normal clear sky irradiance	W/m**2
precipitation	Amount of precipitation during a time interval	mm
temperature	Air temperature, 2 m above ground.	°C
dew_point_temperature	Dew point temperature, 2 m above ground.	°C
snow_depth	Snow depth	mm
global_extraterrestrial_irradiance	Extraterrestrial irradiance	W/m**2
global_extraterrestrial_normal_irradiance	Extraterrestrial normal irradiance	W/m**2
downwelling_longwave_irradiance	Downwelling longwave irradiance	W/m**2
upwelling_longwave_irradiance	Upwelling longwave irradiance	W/m**2
vertical_longwave_irradiance	Vertical longwave irradiance	W/m**2
photo_active_irradiance	Photosynthetically active irradiance	W/m**2
radiation_balance	Radiation balance	W/m**2
global_illuminance	Global illuminance	lux
direct_illuminance	Direct illuminance	lux
diffuse_illuminance	Diffuse illuminance	lux
linke_turbidity_factor	Linke turbidity factor	1
aerosol_optical_depth	Aerosol optical depth	1
cloud_cover	Total cloud coverage	okta
albedo	Albedo	1
surface_temperature	Surface temperature	°C
sky_temperature	Sky temperature	°C
wet_bulb_temperature	Wet bulb temperature, 2 m above ground	°C
mixing_ratio	Mixing ratio of water vapour in the air	g/kg
relative_humidity	Relative humidity, 2 m above ground	%
precipitable_water	Precipitable water	mm
driving_rain	Driving rain	mm/(h*m^2)
pressure	Mean sea level pressure	hPa
wind_speed	Wind speed, 10 m above ground	m/s
wind_direction	Wind direction, 10 m above ground. 0° = north wind, 90° = easterly wind, 180° = southerly wind, 270° = westerly wind.	°
solar_elevation	Solar elevation angle	°
solar_azimuth	Solar azimuth angle	°

​Forecast

Code	Description	Unit
global_horizontal_irradiance	Global horizontal irradiance	W/m**2
global_horizontal_irradiance_with_shading	Global horizontal irradiance with shading taken into account	W/m**2
direct_horizontal_irradiance	Direct horizontal irradiance	W/m**2
direct_horizontal_irradiance_with_shading	Direct horizontal irradiance with shading taken into account	W/m**2
diffuse_horizontal_irradiance	Diffuse horizontal irradiance	W/m**2
diffuse_horizontal_irradiance_with_shading	Diffuse horizontal irradiance with shading taken into account	W/m**2
direct_normal_irradiance	Direct normal irradiance	W/m**2
direct_normal_irradiance_with_shading	Direct normal irradiance with shading taken into account	W/m**2
global_tilted_irradiance	Global tilted irradiance	W/m**2
global_tilted_irradiance_with_shading	Global tilted irradiance with shading taken into account	W/m**2
direct_tilted_irradiance	Direct tilted irradiance	W/m**2
direct_tilted_irradiance_with_shading	Direct tilted irradiance with shading taken into account	W/m**2
diffuse_tilted_irradiance	Diffuse tilted irradiance	W/m**2
diffuse_tilted_irradiance_with_shading	Diffuse tilted irradiance with shading taken into account	W/m**2
pv_production	Power output per kWp installed	Wh/kWp
pv_production_with_shading	Power output per kWp installed, with shading taken into account	Wh/kWp
global_clear_sky_irradiance	Global horizontal clear sky irradiance	W/m**2
precipitation	Amount of precipitation during a time interval	mm
temperature	Air temperature, 2 m above ground.	°C
dew_point_temperature	Dew point temperature, 2 m above ground.	°C
snow_depth	Snow depth	mm
cloud_cover	Total cloud coverage	okta
relative_humidity	Relative humidity, 2 m above ground	%
pressure	Mean sea level pressure	hPa
wind_speed	Wind speed, 10 m above ground	m/s
wind_direction	Wind direction, 10 m above ground. 0° = north wind, 90° = easterly wind, 180° = southerly wind, 270° = westerly wind.	°
wind_gusts	Wind gusts, 10 m above ground	m/s
weather_symbol	Weather symbol code 1-15. 1: sunny, 2: light coverage, 3: strong coverage, 4: completely covered, 5: heat thunderstorms, 6: heavy precipitation, 7: snow fall, 8: fog, 9: sleet, 10: rain shower, 11: light precipitation, 12: snow shower, 13: front thunderstorms, 14: low stratus, 15: sleet shower.	1

​Observation

Code	Description	Unit
global_horizontal_irradiance	Global horizontal irradiance	W/m**2
global_horizontal_irradiance_with_shading	Global horizontal irradiance with shading taken into account	W/m**2
direct_horizontal_irradiance	Direct horizontal irradiance	W/m**2
direct_horizontal_irradiance_with_shading	Direct horizontal irradiance with shading taken into account	W/m**2
diffuse_horizontal_irradiance	Diffuse horizontal irradiance	W/m**2
diffuse_horizontal_irradiance_with_shading	Diffuse horizontal irradiance with shading taken into account	W/m**2
direct_normal_irradiance	Direct normal irradiance	W/m**2
direct_normal_irradiance_with_shading	Direct normal irradiance with shading taken into account	W/m**2
global_tilted_irradiance	Global tilted irradiance	W/m**2
global_tilted_irradiance_with_shading	Global tilted irradiance with shading taken into account	W/m**2
direct_tilted_irradiance	Direct tilted irradiance	W/m**2
direct_tilted_irradiance_with_shading	Direct tilted irradiance with shading taken into account	W/m**2
diffuse_tilted_irradiance	Diffuse tilted irradiance	W/m**2
diffuse_tilted_irradiance_with_shading	Diffuse tilted irradiance with shading taken into account	W/m**2
pv_production	Power output per kWp installed	Wh/kWp
pv_production_with_shading	Power output per kWp installed, with shading taken into account	Wh/kWp
global_clear_sky_irradiance	Global horizontal clear sky irradiance	W/m**2
temperature	Air temperature, 2 m above ground.	°C
snow_depth	Snow depth	mm

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