gridMET

Datasets:

• gridMET (aka METDATA)

Description: 

GridMET is a dataset of daily high-spatial resolution (~4-km, 1/24th degree) surface meteorological data covering the contiguous US from 1979-yesterday. The data extend to cover southern British Columbia in our real time products. These data can provide important inputs for ecological, agricultural, and hydrological models and are data are updated daily.  gridMET is the preferred naming convention for these data; however, the data are also known as cited as METDATA.

GridMET blends spatial attributes of gridded climate data from PRISM with desirable temporal attributes (and additional variables) from regional reanalysis (NLDAS-2) using climatically aided interpolation. The resulting product is a spatially and temporally complete, high-resolution (1/24th degree ~4-km) gridded dataset of surface meteorological variables.

Organization: University of California Merced (UCM)

Website: gridMET Website

Google Earth Engine: 

• gridMET Info (IDAHO_EPSCOR/GRIDMET)

Spatial resolution: 4-km grid (1/24-deg)

Time Span: 1979 to Present (updated every day)

Variables:

• Minimum/Maximum Temperature
• Precipitation
• Minimum/Maximum Relative Humidity
• Specific Humidity
• Downward Shortwave Radiation (W/m^2)
  • Reflects average over all hours of the day.
  • To go from Watts/m^2 to MJ/(m^2day) you need to multiply the number of sec in a day: watts/meter² x 86400 s/day x 1 MJ/10^6 J = MJ/(meter²*day).
• Near Surface Wind Velocity
• ASCE Grass/Alfalfa Reference Evapotranspiration
• Energy Release Component(model-G)
• Burning Index (model-G)
• 100-hr & 1000-hr Fuel Moisture (model-G)

Terms of Use:

• CC BY 4.0

References:

• Abatzoglou J. T. "Development of gridded surface meteorological data for ecological applications and modelling". International Journal of Climatology. (2011) doi: 10.1002/joc.3413.(Abstract)