Gridded Mean Monthly Temperature and Precipitation Data for Alaska, British Columbia, and Yukon
To aid in better understanding the temperature and precipitation data of the spatially variable climate of Alaska and Northwest Canada, this dataset was created via statistical downscaling methods so that hydrologists and other users would have access to gridded estimates (two km resolution) of cumulative precipitation and mean temperature for every month between 1961 and 2009 in Alaska, Yukon Territory, and British Columbia.
Dataset Citation
Cite this dataset when used as a source.
Dataset Identifiers
- NCEI DSI 9817_01
- gov.noaa.ncdc:C00780
ISO 19115-2 Metadata
gov.noaa.ncdc:C00780
Other Access |
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Distribution Formats |
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Customer Engagement Branch NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov |
Dataset Point of Contact | Kelly Redmond NCDC Regional Climate Director DRI > Desert Research Institute +1 775-674-7011 kelly.redmond@dri.edu |
Coverage Description | |
Time Period | 1961 to 2009 |
Spatial Reference System | urn:ogc:def:crs:EPSG::3338 |
Spatial Bounding Box Coordinates |
West: -180
East: -113
South: 49
North: 60
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Spatial Coverage Map |
General Documentation |
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Publication Dates |
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Not planned |
Purpose | Weather in Alaska and Western Canada is highly spatially variable, so the availability of a high resolution product is necessary for many purposes in many fields, including hydrology, nearshore oceanography, biology and other land management fields. To fill that need, Oregon State University created a gridded data set of monthly precipitation and temperature in Alaska, Yukon Territory, and British Columbia. |
Use Limitations |
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Cited Authors |
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Principal Investigators |
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Publishers |
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Theme keywords |
Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords |
Global Change Master Directory (GCMD) Data Center Keywords
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Platform keywords |
Global Change Master Directory (GCMD) Platform Keywords
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Instrument keywords |
Global Change Master Directory (GCMD) Instrument Keywords
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Place keywords |
Global Change Master Directory (GCMD) Location Keywords
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Data Resolution keywords |
Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
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Stratum keywords |
Global Change Master Directory (GCMD) Location Keywords
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Use Constraints | No constraint information available |
Other Constraints | None |
Fees |
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Lineage information for: dataset | |
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Lineage Statement | Grids were created by resampling PRISM monthly precipitation norms between 1971-2000 (for Alaska) and 1961-1990 (for British Columbia and Yukon) from a resolution of 771 m to a resolution of 2 km. The resampled climatic norm grids were then merged for each calendar month. Proportional anomalies, or the ratio between measured monthly precipitation and the PRISM monthly norm at that location, were calculated for precipitation for each month between 1/1961 and 12/2009 at the locations of Alaskan and Canadian weather which reported at least 36 months of data within the period. Absolute anomalies, or the difference between measured monthly precipitation and the PRISM monthly norm at that location, were calculated for temperature. Anomalies were interpolated over the entire grid extent using a splines with tension approach (tension = 0.8). Gridded monthly anomalies were then multiplied by or added to the PRISM norm (for precipitation and temperature respectively) to yield a 2 km gridded estimate of total monthly precipitation and temperature in the region for all months between 1/1961 and 12/2009. |
Processor |
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Processing Steps |
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Processing Environment | Files are in ascii grid format, with the grid size, bounding coordinates, resolution, and nodata value listed in the first six lines. Data can be uploaded into ArcGIS or viewed in any programming language. |
Source Datasets |
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Lineage information for: repository | |
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Processing Steps |
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Last Modified: 2023-06-23
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov