f9831074-cd3f-4c06-8601-687bd2911b7e Scenarios Network for Alaska and Arctic Planning uaf-snap-data-tools@alaska.edu 2024-04-25T10:41:35 ISO 19115:2003/19139 1.0 3 0 0 EPSG:3338 Degree Days: Freezing Index, Thawing Index, Heating Degree Days, and Degree Days Below 0° F 2024-04-09 This dataset consists of four different variables: degree days below 65°F (or "heating degree days"), degree days below 0°F, degree days below 32°F (or "air freezing index"), and degree days above 32°F (or "air thawing index"). All were derived from the same set of nine statistically downscaled CMIP5 global climate model outputs driven by RCP 4.5 and RCP 8.5 emissions scenarios. A historical baseline (Daymet, 1980-2017) dataset is included for each variable. All data are in GeoTIFF format and have a spatial resolution of 12 km. Units are degree days Fahrenheit (°F⋅days). The model-scenario combinations are: - ACCESS1-3, RCP 4.5 - ACCESS1-3, RCP 8.5 - CanESM2, RCP 4.5 - CanESM2, RCP 8.5 - CCSM4, RCP 4.5 - CCSM4, RCP 8.5 - CSIRO-Mk3-6-0, RCP 4.5 - CSIRO-Mk3-6-0, RCP 8.5 - GFDL-ESM2M, RCP 4.5 - GFDL-ESM2M, RCP 8.5 - inmcm4, RCP 4.5 - inmcm4, RCP 8.5 - MIROC5, RCP 4.5 - MIROC5, RCP 8.5 - MPI-ESM-MR, RCP 4.5 - MPI-ESM-MR, RCP 8.5 - MRI-CGCM3, RCP 4.5 - MRI-CGCM3, RCP 8.5 The .zip files that are available for download are organized by variable. One .zip file has all the models and scenarios and years for that variable. Each GeoTIFF file has a naming convention like this: "ncar_12km_{model}_{scenario}_{variable}_{year}_Fdays.tif" Each GeoTIFF has a 12 km by 12 km pixel size, and is projected to EPSG:3338 (Alaska Albers). Charles Parr Josh Paul Kyle Redilla Scenarios Network for Alaska and Arctic Planning uaf-snap-data-tools@alaska.edu https://catalog.snap.uaf.edu/geonetwork/srv/api/records/f9831074-cd3f-4c06-8601-687bd2911b7e/attachments/degree_days_preview.png CMIP5 modeled projected historical temperature https://creativecommons.org/licenses/by/4.0/ 12 eng climatologyMeteorologyAtmosphere 1950-01-01 2099-12-31 -178.20 -130.00 51.20 71.40 GeoTIFF 1.0 WWW:LINK-1.0-http--link http://data.snap.uaf.edu/data/Base/AK_12km/degree_days/ WWW:LINK-1.0-http--link Degree Days: Freezing Index, Thawing Index, Heating Degree Days, and Degree Days Below 0 Fahrenheit Folder containing all data that is part of this data package. https://doi.org/10.1016/j.cliser.2022.100312 DOI New projections of 21st century climate and hydrology for Alaska and Hawaii Publication https://doi.org/10.5065/c3kn-2y77 DOI Mizukami, N., A. J. Newman, A. W. Wood, E. D. Gutmann, and J. J. Hamman, 2022: 21st century hydrologic projections for Alaska and Hawaii. Boulder, CO: UCAR/NCAR/RAL. Source Dataset