Projected Decadal Averages of Monthly Snowfall Equivalent 771m CMIP5/AR5

These files include downscaled projections of decadal average monthly snowfall (water) equivalent (SWE) in millimeters for each month of the decades from 2010-2019 to 2090-2099 at 771 x 771 m spatial resolution. Each file represents a decadal average monthly mean. Output is available for the NCAR-CCSM4, GFDL-CM3, GISS-E2-R, IPSL-CM5A-LR, and MRI-CGCM3 models and three emissions scenarios (RCP 4.5, RCP 6.0 and RCP 8.5).

SWE estimates were produced by multiplying snow-day fraction ("fs") by decadal average monthly precipitation ("Pr") such that

SWE = (fs * Pr) / 100

Snow-day fraction data used can be found here: http://ckan.snap.uaf.edu/dataset/projected-decadal-averages-of-monthly-snow-day-fraction-771m-cmip5-ar5

Precipitation data used can be found here: http://ckan.snap.uaf.edu/dataset/projected-monthly-and-derived-precipitation-products-771m-cmip5-ar5

* Note: In Littell et al. 2018: "SWE" is referred to as "SFE" and "fs" is referred to as "PSF"

Date (Creation): 2018-05-04

Edition: 1.0.0

Credit: Matthew Leonawicz

Credit: Michael Lindgren

Credit: Tom Kurkowski

Credit: John Walsh

Credit: Scott Rupp

Credit: Stephanie McAfee

Credit: Jeremy Littell

Status: On going

Point of contact

Scenarios Network for Alaska and Arctic Planning

Maintenance and update frequency: As needed

Keywords

snow
snow water equivalent
precipitation
projected
modeled
CMIP5

Keywords

Use constraints: License

Other constraints: https://creativecommons.org/licenses/by/4.0/

Spatial representation type: Grid

Distance: 771 m

Metadata language: eng

Character set: UTF8

Topic category

Climatology, meteorology, atmosphere

Begin date: 2010-01-01

End date: 2099-12-31

Unique resource identifier: EPSG:3338

Number of dimensions: 3

Dimension name: Time

Dimension name: Row

Dimension name: Column

Cell geometry: Area

Distribution format

OnLine resource: Projected Decadal Averages of Monthly Snowfall Equivalent 771m CMIP5/AR5 ( WWW:LINK-1.0-http--link )
URL to web-accessible folder containing downloads for this data set.

OnLine resource: McAfee et al., 2013: Statistically downscaled projections of snow/rain partitioning for Alaska ( WWW:LINK-1.0-http--link )
Detailed information on the construction of this data and its implications.

OnLine resource: Littell et al., 2018: Alaska Snowpack Response to Climate Change: Statewide Snowfall Equivalent and Snowpack Water Scenarios ( WWW:LINK-1.0-http--link )
Publication

OnLine resource: ScienceBase Catalog Record ( WWW:LINK-1.0-http--link )
ScienceBase Catalog Record: "Collection: Historical and Projected Estimates of Snow Fraction and and the Amount of Precipitation that Likely Falls as Snow Across Alaska"