AIFS Hindcasts
Technical specifications are available in a technical specifications document here.
Hindcasts Details
Hindcasts are global with a grid of 721×1440
Hindcasts are from
2023-01-02to2024-12-27Hindcasts are run 4 times a day at 00, 06, 12, 18 UTC
Hindcasts are chunked as
(time: 1, prediction_timedelta: 81, lat: 120, lon: 240)Forecasts are 6 hourly from days 0 to 20
Exposed Variables
AIR_TEMPERATURE_AT_HEIGHT_LEVEL_2M
Air temperature at 2m
K
WIND_SPEED_AT_HEIGHT_LEVEL_10M
Horizontal wind speed at 10m
m s⁻¹
WIND_DIRECTION_AT_HEIGHT_LEVEL_10M
Horizontal wind direction at 10m
Degrees true
WIND_SPEED_AT_HEIGHT_LEVEL_100M
Horizontal wind speed at 100m
m s⁻¹
WIND_DIRECTION_AT_HEIGHT_LEVEL_100M
Horizontal wind direction at 100m
Degrees true
AIR_PRESSURE_AT_MEAN_SEA_LEVEL
Mean Sea-level Pressure
Pa
GEOPOTENTIAL_AT_PRESSURE_LEVEL_50000PA
Geopotential
m² s⁻²
SURFACE_DOWNWELLING_SHORTWAVE_FLUX_SUM_6H
Surface solar downward irradiance
J m⁻²
SURFACE_DOWNWELLING_SHORTWAVE_FLUX_SUM_1H
Surface thermal downward irradiance
J m⁻²
HIGH_TYPE_CLOUD_AREA_FRACTION
Cloud fraction in high levels of troposphere
range between [0,1]
MEDIUM_TYPE_CLOUD_AREA_FRACTION
Cloud fraction in medium levels of troposphere
range between [0,1]
LOW_TYPE_CLOUD_AREA_FRACTION
Cloud fraction in low levels of troposphere
range between [0,1]
CLOUD_AREA_FRACTION_AT_ENTIRE_ATMOSPHERE
Cloud fraction
range between [0,1]
Additional Variables on Request.
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