- Dataset Availability
- 1980-01-01T00:00:00Z–2019-12-31T00:00:00Z
- Dataset Provider
- NASA ORNL DAAC at Oak Ridge National Laboratory
- Earth Engine Snippet
-
ee.ImageCollection("NASA/ORNL/DAYMET_V3")
- Tags
Description
Daymet V3 provides gridded estimates of daily weather parameters for United States, Mexico, Canada, Hawaii, and Puerto Rico. It is derived from selected meteorological station data and various supporting data sources.
Compared to the previous version, Daymet V3 uses an entirely new suite of inputs including:
NASA SRTM DEM version 2.1.
Land/Water Mask: MODIS 250
MOD44W_v2.NASA_ORNL_
Horizon files derived from the SRTM DEM.
Ground station weather inputs from several sources with QA/QC.
Documentation:
Bands
Resolution
1000 meters
Bands
Name | Units | Min | Max | Description |
---|---|---|---|---|
dayl |
seconds | 0* | 86400* | Duration of the daylight period. Based on the period of the day during which the sun is above a hypothetical flat horizon. |
prcp |
mm | 0* | 200* | Daily total precipitation, sum of all forms converted to water-equivalent. |
srad |
W/m^2 | 0* | 800* | Incident shortwave radiation flux density, taken as an average over the daylight period of the day. |
swe |
kg/m^2 | 0* | 1000* | Snow water equivalent, the amount of water contained within the snowpack. |
tmax |
°C | -50* | 50* | Daily maximum 2-meter air temperature. |
tmin |
°C | -50* | 50* | Daily minimum 2-meter air temperature. |
vp |
Pa | 0* | 10000* | Daily average partial pressure of water vapor. |
Terms of Use
Terms of Use
This dataset is in the public domain and is available without restriction on use and distribution. See NASA's Earth Science Data & Information Policy for additional information.
Citations
Thornton, P.E., M.M. Thornton, B.W. Mayer, Y. Wei, R. Devarakonda, R.S.Vose, and R.B. Cook. {YEAR}. Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version3. ORNL DAAC, Oak Ridge, Tennessee, USA
Other Citation Details - Thornton, P.E., M.M. Thornton, B.W. Mayer, Y. Wei, R. Devarakonda, R.S. Vose, and R.B. Cook. 2016. Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 3. ORNL DAAC, Oak Ridge, Tennessee, USA. doi:10.3334/ORNLDAAC/1328
DOIs
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee.ImageCollection('NASA/ORNL/DAYMET_V3') .filter(ee.Filter.date('2017-04-01', '2017-04-30')); var maximumTemperature = dataset.select('tmax'); var maximumTemperatureVis = { min: -40.0, max: 30.0, palette: ['1621A2', 'white', 'cyan', 'green', 'yellow', 'orange', 'red'], }; Map.setCenter(-110.21, 35.1, 4); Map.addLayer(maximumTemperature, maximumTemperatureVis, 'Maximum Temperature');