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PNW Data Archive: Future

The Climate Impacts Group has analyzed the climate response for the Pacific Northwest by downscaling the simulations generated by several global climate models. Principally, by applying 2 different downscaling methods, statistical and dynamical, the CIG has produced various climate projections for the PNW region. The CIG uses global models produced by the Intergovernmental Panel on Climate Change (IPCC) for regional analyses. The IPCC periodically updates the global climate models based on the latest research from climate centers worldwide. The CIG uses the most recent models released in IPCC reports, and therefore several ensembles of climate projections are available based on the different IPCC releases.

The CIG has widely applied statistically downscaled climate data to other related projects to determine the responses of various natural resources in the PNW to future climate projections. From each project, the CIG provides databases of internally consistent climate and hydrologic variables. These studies were developed to meet the needs of natural resource managers and support efforts to incorporate climate change scenarios into their operations and management plans. The datasets available on this page use global climate models from the 2007 IPCC AR4 report:

The CIG collaborates extensively with the UW Department of Atmospheric Sciences to develop state-of-the-the-art, high resolution regional climate models. These models are designed to capture the responses of climate to interactions and feedbacks between large-scale atmospheric conditions and mesoscale processes. The objective of regional climate modeling is to represent physical interactions in the climate system at various spatial scales in the PNW. More information about regional climate modeling and preliminary results can be accessed here.

 

Washington Climate Change Impacts Assessment

The projections listed in the table below were developed and used for the statewide assessment of climate change completed in 2009. These projections of temperature and precipitation are the downscaled climate data from 20 global climate models and two emissions scenarios released in the 2007 IPCC AR4 report. The 20th century simulations are also available from the page linked above.

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
Climatic Data
Precipitation Seasonal, Annual PNW region-wide average 2020s, 2040s, 2080s
Temperature Seasonal, Annual PNW region-wide average 2020s, 2040s, 2080s

Columbia Basin Climate Change Scenarios Project

This project provides a comprehensive suite of historical and 21st century hydroclimatological scenarios for the Columbia River basin and coastal drainages in OR and WA. Datasets are available as sub-basin averages for the 297 sites shown in Figure 1 and as gridded data at 1/16 degree spatial resolution. Monthly and daily time series are provided.

click image to enlarge

CBCCSP sites

Figure 1 The PNW area covered by the CBCCSP. Red dots indicate sites where observed data is available for calibrated ("bias-adjusted") sub-basin estimates. Yellow dots indicate sites where observed data is unavailable and sub-basin averages are uncalibrated (or "raw").

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
Climatic Data
Precipitation Daily, Monthly 1/16º, Sub-basin average 2020s, 2040s, 2080s
Temperature Daily, Monthly 1/16º, Sub-basin average 2020s, 2040s, 2080s
Hydrologic Data
Streamflow (raw) Daily, Monthly Sub-basin average 2020s, 2040s, 2080s
Streamflow (bias-adjusted) Daily, Monthly Sub-basin average 2020s, 2040s, 2080s
Combined flow Monthly Sub-basin average 2020s, 2040s, 2080s
Flood statistics Daily Sub-basin average 2020s, 2040s, 2080s
Low flow statistics Daily Sub-basin average 2020s, 2040s, 2080s
Streamflow Monthly Sub-basin average 2020s, 2040s, 2080s
Snow water equivalent Daily, Monthly 1/16º, Sub-basin average 2020s, 2040s, 2080s
Runoff Daily, Monthly 1/16º 2020s, 2040s, 2080s
Baseflow Daily, Monthly 1/16º 2020s, 2040s, 2080s
Snow depth Daily, Monthly 1/16º 2020s, 2040s, 2080s
Vegetative/Soil/Atmospheric Data
Evapotranspiration Daily, Monthly Sub-basin average 2020s, 2040s, 2080s
Potential Evapotranspiration (5 variables) Daily, Monthly 1/16º, Sub-basin average 2020s, 2040s, 2080s
Soil Moisture (3 variables) Daily, Monthly 1/16º, Sub-basin average 2020s, 2040s, 2080s
Outgoing longwave radiation Daily, Monthly 1/16º 2020s, 2040s, 2080s
Incoming shortwave radiation Daily, Monthly 1/16º 2020s, 2040s, 2080s
Relative humidity Daily, Monthly 1/16º 2020s, 2040s, 2080s
Vapor pressure deficit Daily, Monthly 1/16º 2020s, 2040s, 2080s

Regional Climate and Hydrologic Change in the Western US

This project provides consistent historical and future downscaled climate and hydrologic data and projections for four major basins in the western US - excluding those in California (Figure 2). The four major western basins include the Columbia River, the Upper Missouri River, the Colorado River and the Great Basin. To meet the needs of data users, the data have been summarized into daily and monthly summaries, aggregated into spatial subregions and formatted for time series and gridded (compatible with ArcGIS) analyses.

click image to enlarge

R1/R6 sites

Figure 2 The four major western basins covered in the Regional Climate and Hydrologic Change in the Western US.

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
Climatic Data
Precipitation Daily, Monthly 1/16º, 1/8º 2040s, 2080s *This project provides data for the Great Basin at the 1/8º spatial resolution only. All other basins are available at the 1/16º resolution.
Temperature Daily, Monthly 1/16º, 1/8º 2040s, 2080s
Hydrologic Data
Snow water equivalent Monthly 1/16º, 1/8º 2040s, 2080s
Runoff Monthly 1/16º, 1/8º 2040s, 2080s
Baseflow Monthly 1/16º, 1/8º 2040s, 2080s
Snow depth Monthly 1/16º, 1/8º 2040s, 2080s
Vegetative/Soil/Atmospheric Data
Evapotranspiration Monthly 1/16º, 1/8º 2040s, 2080s
Potential Evapotranspiration (5 variables) Monthly 1/16º, 1/8º 2040s, 2080s
Soil Moisture (3 layers) Monthly 1/16º, 1/8º 2040s, 2080s
Outgoing longwave radiation Monthly 1/16º, 1/8º 2040s, 2080s
Incoming shortwave radiation Monthly 1/16º, 1/8º 2040s, 2080s
Relative humidity Monthly 1/16º, 1/8º 2040s, 2080s
Vapor pressure deficit Monthly 1/16º, 1/8º 2040s, 2080s

For Assistance

If you need any assistance downloading or using this data, contact Todd Mitchell (mitchell@atmos.washington.edu).