Imaging · collection · 2022
Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 4 R1
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.3334/ornldaac/2129
This dataset provides Daymet Version 4 R1 data as gridded estimates of daily weather parameters for North America, Hawaii, and Puerto Rico.
Description
Daymet variables include the following parameters: minimum temperature, maximum temperature, precipitation, shortwave radiation, vapor pressure, snow water equivalent, and day length. The dataset covers the period from January 1, 1980, to December 31 (or December 30 in leap years) of the most recent full calendar year for the Continental North America and Hawaii spatial regions.
Data for Puerto Rico is available starting in 1950. Each subsequent year is processed individually at the close of a calendar year. Daymet variables are provided as individual files, by variable and year, at a 1 km x 1 km spatial resolution and a daily temporal resolution.
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Areas of Hawaii and Puerto Rico are available as files separate from the continental North America. Data are in a North America Lambert Conformal Conic projection and are distributed in a standardized Climate and Forecast (CF)-compliant netCDF file format. 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.
Links
Get the data
- Data set Landing Page DOI URL doi.org/10.3334/ornldaac/2129 ↗
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- OpenDAP URL opendap.earthdata.nasa.gov ↗
metadata API · download · from NASA CMR, data nasa gov
- ORNL DAAC Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/daymet/Daymet_Daily_V4R1/comp/Daymet_Daily_V4R1.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2532426483-ORNL_CLOUD.iso19115 ↗
download · from data nasa gov
- PNG daac.ornl.gov/DAYMET/guides/Daymet_Daily_V4R1_Fig1.png ↗
download · preview image · from data nasa gov, NASA CMR
- Resource daymet.ornl.gov ↗
download · project · from data nasa gov, NASA CMR
- search.earthdata.nasa.gov /search?q=Daymet_Daily_V4R1_2129&ac=true ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/daymet-daily-surface-weather-data-on-a-1-km-grid-for-n… ↗
landing page · from data nasa gov
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=972155f7-9e44-4451-8864-4ef6186d7… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2532426483-ORNL_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2532426483-ORNL_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- 24 Hour Precipitation Amount · Computer · Maximum/Minimum Temperature · MODELS · Shortwave Radiation · Snow Water Equivalent · Vapor Pressure
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 21 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2532426483-ORNL_CLOUD | 12 d ago | JSON v1 |
| NASA Data Portal | 972155f7-9e44-4451-8864-4ef6186d75ba | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:computer | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-radiation/shortwave-radiation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-temperature/surface-temperature/maximum-minimum-temperature | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-indicators/vapor-pressure | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/precipitation/precipitation-amount/24-hour-precipitation-amount | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/precipitation/snow-water-equivalent | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:models | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |