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Unified COVID-19 Dataset

Hydromet Data Structure

Column Type Unit Description
ID Character Geospatial ID, unique identifier
Date Date Date of data record
T Double °C Daily average near-surface air temperature
Tmax Double °C Daily maximum near-surface air temperature
Tmin Double °C Daily minimum near-surface air temperature
Td Double °C Daily average near-surface dew point temperature
Tdd Double °C Daily average near-surface dew point depression
RH Double % Daily average near-surface relative humidity
SH Double kg/kg Daily average near-surface specific humidity
MA Double % Daily average moisture availability (NLDAS)
RZSM Double kg/m2 Daily average root zone soil moisture content (NLDAS)
SM Double kg/m2 Daily average soil moisture content (NLDAS)
SM1 Double m3/m3 Daily average volumetric soil water layer 1 (ERA5)
SM2 Double m3/m3 Daily average volumetric soil water layer 2 (ERA5)
SM3 Double m3/m3 Daily average volumetric soil water layer 3 (ERA5)
SM4 Double m3/m3 Daily average volumetric soil water layer 4 (ERA5)
SP Double Pa Daily average surface pressure
SR Double J/m2 Daily average surface downward solar radiation (ERA5)
SRL Double W/m2 Daily average surface downward longwave radiation flux (NLDAS)
SRS Double W/m2 Daily average surface downward shortwave radiation flux (NLDAS)
LH Double J/m2 Daily average surface latent heat flux (ERA5)
LHF Double W/m2 Daily average surface latent heat flux (NLDAS)
PE Double m Daily average potential evaporation / latent heat flux (ERA5)
PEF Double W/m2 Daily average potential evaporation / latent heat flux (NLDAS)
P Double mm/day Daily total precipitation
U Double m/s Daily average 10-m above ground Zonal wind speed
V Double m/s Daily average 10-m above ground Meridional wind speed
HydrometSource Character Data source: ERA5, NLDAS ± CIESIN*
  • The hydromet data with _CIESIN suffix in HydrometSource are population-weighted using Gridded Population of the World (GPW), hosted by Center for International Earth Science Information Network (CIESIN).