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  2. National and Regional Climate Adaptation Science Centers
  3. Alaska CASC
  4. FY 2021 Projects
  5. Identification of Regions in Alaska Susceptible to Landscape Deformation Due to “Climate Priming” of Permafrost Soils
  6. Approved DataSets
  7. Raster Climate Priming Index and supporting data for Alaska and Northwest Canada 1901-2100
  8. Raster Freezing and Thawing Degree-day Data for Alaska and Northwest Canada 1901-2100

Raster Freezing and Thawing Degree-day Data for Alaska and Northwest Canada 1901-2100

Dates

Publication Date
Start Date
1901
End Date
2100

Citation

Spicer, R.W. and Bolton, R.W., 2025, Raster Climate Priming Index and supporting data for Alaska and Northwest Canada 1901-2100: U.S. Geological Survey data release, https://doi.org/10.5066/P13QB93Y.

Summary

Annual freezing degree-day and thawing degree-day metrics for the state of Alaska and Northwest Canada. Degree-days were estimated using integration of a piecewise cubic hermite interpolating polynomial calculated from monthly data. Input monthly data from the Scenarios Network for Alaska + Arctic Planing, consisting of downscaled CRU TS 4.0 historic estimates of monthly temperature, were used for the period from 1901-2020, and downscaled CMIP5/AR5 projected estimates of monthly temperature were used from the period from 2006-2100. Thawing degree-days were calculated from 1901-2100, and freezing degree-days from 1901-2099.

Contacts

Point of Contact :
Rawser Spicer, International Arctic Research Center
Originator :
Rawser W. Spicer, W. Robert Bolton
Metadata Contact :
Climate Adaptation Science Centers
Publisher :
U.S. Geological Survey Data Release
Funding Agency :
Alaska CASC
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

Click on title to download individual files attached to this item.

CPI-degree-day-metadata-final.xml
Original FGDC Metadata
View 		13.26 KB application/fgdc+xml
1.45 GB application/x-gzip
1.44 GB application/x-gzip
1.73 GB application/x-gzip
1.44 GB application/x-gzip

Purpose

Annual freezing degree-day and thawing degree-day metrics were calculated to represent the annual winter and summer temperature. These metrics were used in our Climate Priming Index to find and represent seasons where the temperatures were above normal. For each year our index is calculated we look at the previous year's freezing degree-day and thawing degree-day metrics and the index year's thawing degree-day metrics. Data is provided for the historic period (1901-2020) based on CRU TS 4.0 data, and for three projected climate scenarios, based on CRU + CMIP5/AR5 data (2000-2100).

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Communities

  • Alaska CASC
  • National and Regional Climate Adaptation Science Centers

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