GRIDMET: University of Idaho Gridded Surface Meteorological Dataset

IDAHO_EPSCOR/GRIDMET
Dataset Availability
1979-01-01T00:00:00Z–2024-12-17T06:00:00Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("IDAHO_EPSCOR/GRIDMET")

Description

The Gridded Surface Meteorological dataset provides high spatial resolution (~4-km) daily surface fields of temperature, precipitation, winds, humidity and radiation across the contiguous United States from 1979. The dataset blends the high resolution spatial data from PRISM with the high temporal resolution data from the National Land Data Assimilation System (NLDAS) to produce spatially and temporally continuous fields that lend themselves to additional land surface modeling.

This dataset contains provisional products that are replaced with updated versions when the complete source data become available. Products can be distinguished by the value of the 'status' property. At first, assets are ingested with status='early'. After several days, they are replaced by assets with status='provisional'. After about 2 months, they are replaced by the final assets with status='permanent'.

Bands

Resolution
4638.3 meters

Bands

Name Units Min Max Description
pr mm, daily total 0* 690.44*

Precipitation amount
rmax % 1.05* 100*

Maximum relative humidity
rmin % 0* 100*

Minimum relative humidity
sph Mass fraction 0* 0.02*

Specific humididy
srad W/m^2 0* 455.61*

Surface downward shortwave radiation
th deg

Wind direction
tmmn K 225.54* 314.88*

Minimum temperature
tmmx K 233.08* 327.14*

Maximum temperature
vs m/s 0.14* 29.13*

Wind velocity at 10m
erc NFDRS fire danger index 0* 131.85*

Energy release component
eto mm 0* 17.27*

Daily grass reference evapotranspiration
bi NFDRS fire danger index 0* 214.2*

Burning index
fm100 % 0.28* 33.2*

100-hour dead fuel moisture
fm1000 % 0.36* 47.52*

1000-hour dead fuel moisture
etr mm 0* 27.02*

Daily alfalfa reference evapotranspiration
vpd kPa 0* 9.83*

Mean vapor pressure deficit
* estimated min or max value

Image Properties

Image Properties

Name Type Description
status STRING

'early', 'provisional', or 'permanent'

Terms of Use

Terms of Use

This work (METDATA, by John Abatzoglou) is in the public domain and is free of known copyright restrictions. Users should properly cite the source used in the creation of any reports and publications resulting from the use of this dataset and note the date when the data was acquired.

Citations

Citations:

  • Abatzoglou J. T., Development of gridded surface meteorological data for ecological applications and modelling, International Journal of Climatology. (2012) doi:10.1002/joc.3413

Explore with Earth Engine

Code Editor (JavaScript)

var dataset = ee.ImageCollection('IDAHO_EPSCOR/GRIDMET')
                  .filter(ee.Filter.date('2018-08-01', '2018-08-15'));
var maximumTemperature = dataset.select('tmmx');
var maximumTemperatureVis = {
  min: 290.0,
  max: 314.0,
  palette: ['d8d8d8', '4addff', '5affa3', 'f2ff89', 'ff725c'],
};
Map.setCenter(-115.356, 38.686, 5);
Map.addLayer(maximumTemperature, maximumTemperatureVis, 'Maximum Temperature');
Open in Code Editor
The Gridded Surface Meteorological dataset provides high spatial resolution (~4-km) daily surface fields of temperature, precipitation, winds, humidity and radiation across the contiguous United States from 1979. The dataset blends the high resolution spatial data from PRISM with the high temporal resolution data from the National Land Data Assimilation System …
IDAHO_EPSCOR/GRIDMET, climate,gridmet,humidity,merced,metdata,precipitation,radiation,temperature,wind
1979-01-01T00:00:00Z/2024-12-17T06:00:00Z
24.9 -124.9 49.6 -66.8
Google Earth Engine