Projected Monthly Precipitation - 1 km CMIP3/AR4

This set of files includes downscaled projections of monthly total precipitation (in millimeters, no unit conversion necessary) for each month of every year from January 2001 - December 2100 at 1x1 kilometer spatial resolution. Each file represents a single month in a given year. The original SNAP downscaled precipitation product at 2x2 kilometer spatial scale was resampled to a 1x1 kilometer spatial scale using a bilinear interpolation for input in the Integrated Ecosystem Model (IEM).

The spatial extent includes Alaska, the Yukon Territories, and Northern British Columbia.

Scenarios: B1, A1B, A2

Centers, Model Names, Versions, and Acronyms:

Canadian Centre for Climate Modelling and Analysis, General Circulation Model
version 3.1 - t47 (CCMA), cccma cgcm31

Max Planck Institute for Meteorology, European Centre Hamburg Model 5 (ECHAM5), mpi echam5

These files are bias corrected and downscaled via the delta method using PRISM 1961-1990 (2km Alaska and Western Canada data) as baseline climate. Absolute anomalies are utilized for temperature variables. Proportional anomalies are utilized for precipitation variables.

Data and Resources

Additional Info

Spatial resolution

1000 meters

Temporal extent

Start date: January 2001

End date: December 2100


The following people worked on producing this data set:

  • Matthew Leonawicz
  • Tom Kurkowski
  • John Walsh
  • Scott Rupp
  • Michael Lindgren
Field Value
Maintainer Tom Kurkowski
Version 1.0.0
access_constraints []
bbox-east-long -111.25894458118
bbox-north-lat 71.34142000000001
bbox-south-lat 51.3482
bbox-west-long -173.49206
coupled-resource []
credits ["Matthew Leonawicz", "Tom Kurkowski", "John Walsh", "Scott Rupp", "Michael Lindgren"]
dataset-reference-date [{"type": "creation", "value": "2011-11-30T01:00:00"}]
frequency-of-update asNeeded
graphic-preview-description thumbnail
graphic-preview-file IEM_monthly_precip_future_s.png
graphic-preview-type png
guid 815f24b8-c9a4-48db-9d8f-c3de1f78d9d7
licence []
license Creative Commons Attribution 4.0
metadata-date 2016-08-30T11:53:07
progress onGoing
responsible-party [{"name": "Scenarios Network for Alaska and Arctic Planning (SNAP)", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-173.49206, 51.3482], [-111.258944581, 51.3482], [-111.258944581, 71.34142], [-173.49206, 71.34142], [-173.49206, 51.3482]]]}
spatial-reference-system 3338
spatial-resolution 1000
spatial-resolution-units meters
spatial_harvester true
temporal-extent-begin 2001-01-15T00:00:00
temporal-extent-end 2100-12-15T11:00:00