Daymet: Station-Level Inputs and Cross-Validation for North America, Version 4 R1

Description

This dataset reports the station-level daily weather observation data and the corresponding cross-validation results for three Daymet model parameters: minimum temperature (tmin), maximum temperature (tmax), and daily total precipitation (prcp) across continental North America (including Canada, the United States, and Mexico), Hawaii, and Puerto Rico. Each data file contains the daily observations and cross-validation results for one parameter for each modeled region and each year, that is, from 1980 to the current calendar year for stations across continental North America and Hawaii and from 1950 to the current year for Puerto Rico. Also included are corresponding station metadata files listing every surface weather station used in Daymet processing for each parameter, region, and year and containing the station name, station identification, latitude, and longitude. The data are provided in netCDF and text formats. In Version 4 R1, all 2020 and 2021 files were updated to improve predictions especially in high-latitude areas. It was found that input files used for deriving 2020 and 2021 data had, for a significant portion of Canadian weather stations, missing daily variable readings for the month of January. NCEI has corrected issues with the Environment Canada ingest feed which led to the missing readings. The revised 2020 and 2021 Daymet V4 R1 files were derived with new GHCNd inputs. Files outside of 2020 and 2021 have not changed from the previous V4 release.

Resources

Name Format Description Link
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/daacdata/daymet/Daymet_xval_V4R1/
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/daymet/Daymet_xval_V4R1/
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/2132
33 Daymet: Station-Level Inputs and Cross-Validation for North America, Version 4 R1: Daymet_xval_V4R1.pdf https://data.ornldaac.earthdata.nasa.gov/public/daymet/Daymet_xval_V4R1/comp/Daymet_xval_V4R1.pdf
21 Project site https://daymet.ornl.gov
21 The THREDDS location for this Collection. https://thredds.daac.ornl.gov/thredds/catalog/ornldaac/2132/catalog.html
21 USE SERVICE API https://opendap.earthdata.nasa.gov/
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F2132
34 Plot of daily maximum temperature observed vs predicted using Daymet's cross-validation protocol (left) for one station from the Daymet 2019 cross-validation dataset. The right plot shows those data plotted on a 1:1 line with an R2 of 98.9%. The station location (Southern Texas on the Gulf Coast) is shown in the inset. https://daac.ornl.gov/DAYMET/guides/Daymet_xval_V4R1_Fig1.png
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/DAYMET/guides/Daymet_xval_V4R1.html

Tags

  • precipitation
  • atmosphere
  • atmospheric-temperature
  • earth-science

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