Daymet: Annual Climate Summaries on a 1-km Grid for North America, Version 4 R1

Description

This dataset provides annual climate summaries derived from Daymet Version 4 R1 daily data at a 1 km x 1 km spatial resolution for five Daymet variables: minimum and maximum temperature, precipitation, vapor pressure, and snow water equivalent. Annual averages are provided for minimum and maximum temperature, vapor pressure, and snow water equivalent, and annual totals are provided for the precipitation variable. Each data file is provided as a single year by variable and covers the same period of record as the Daymet V4 R1 daily data. The annual climatology files are derived from the larger datasets of daily weather parameters produced on a 1 km x 1 km grid for North America (including Canada, the United States, and Mexico), Hawaii, and Puerto Rico. Separate annual files are provided for the land areas of continental North America, Hawaii, and Puerto Rico. Data are distributed in standardized Climate and Forecast (CF)-compliant netCDF (*.nc) and Cloud Optimized GeoTIFF (*.tif) file formats. In Version 4 R1, all 2020 and 2021 files (60 total) 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 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F2130
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/DAYMET/guides/Daymet_Annual_V4R1.html
34 Daymet V4 annual climatologies for 2019 for maximum and minimum temperature, precipitation, and vapor pressure. https://daac.ornl.gov/DAYMET/guides/Daymet_Annual_V4R1_Fig1.png
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/daacdata/daymet/Daymet_Annual_V4R1/
33 Daymet: Annual Climate Summaries on a 1-km Grid for North America, Version 4 R1: Daymet_Annual_V4R1.pdf https://data.ornldaac.earthdata.nasa.gov/public/daymet/Daymet_Annual_V4R1/comp/Daymet_Annual_V4R1.pdf
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/2130
21 USE SERVICE API https://opendap.earthdata.nasa.gov/
21 Project site https://daymet.ornl.gov
21 Web Coverage Service for this collection. https://webmap.ornl.gov/wcsdown/dataset.jsp?ds_id=2130
21 The THREDDS location for this Collection. https://thredds.daac.ornl.gov/thredds/catalog/ornldaac/2130/catalog.html

Tags

  • atmospheric-radiation
  • precipitation
  • atmospheric-water-vapor
  • atmosphere
  • atmospheric-temperature
  • earth-science

Topics

Categories