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Dataset: CCSM3
Catalog: RegClim THREDDS Server
authorityusgs.gov
featureTypeGrid
idwna30sec_a2_CCSM3_annual
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Documentation
Keywords
Creators
Publishers
Geospatial Coverage
Time Coverage

Description:

  • summary: We have developed a set of downscaled monthly climate data (30-second grid) for the northwest US and southwest Canada. We used historical climate data from the University of East Anglia Climatic Research Unit's (CRU's) CRU CL 1.0 (New et al. 1999), CRU CL 2.0 (New et al. 2002), and CRU TS 2.1 (Mitchell and Jones 2005) data sets and Coupled Model Intercomparison Project phase 3 (CMIP3) future climate simulations (SRES A2 and A1B; Nakićenovic et al. 2000) from five coupled atmosphere-ocean general circulation models: CCSM3 (Collins et al. 2006), CGCM3.1(T47) (Scinocca et al. 2008), GISS-ER (Schmidt et al. 2006), MIROC3.2(medres) (K-1 Model Developers 2004), and UKMO-HadCM3 (Gordon et al. 2000). The downscaled climate data were used to calculate a set of bioclimatic variables (e.g., growing degree days) and also were used as input to LPJ (Sitch et al. 2003), a dynamic global vegetation model, to simulate historical (1901-2000) and potential future (2001-2099) biome changes for the study area. These climate, bioclimate, and biome data were developed for use in scientific research and as input data for various numerical models. They are based on estimates of historical climate and climate model simulations of future climate and thus they are projections, not predictions, of potential future climate, bioclimate, and biome changes.
  • reference: Shafer, S.L., Bartlein, P.J., Gray, E.M., and Pelltier, R.T., in review, Projected future vegetation changes for the northwest United States and southwest Canada at a fine spatial resolution using a dynamic global vegetation model: PLOS ONE.
  • reference: Shafer, S.L., and Bartlein, P.J., 2015, Statistically-downscaled monthly historical (1901-2000) CRU TS 2.1 and projected future (2001-2099) CMIP3 A2 and A1B simulated temperature, precipitation, and sunshine data on a 30-second grid of the northwest United States and southwest Canada, version 1.0: U.S. Geological Survey Data Release. http://dx.doi.org/10.5066/F7H70CWW
  • reference: Shafer, S.L., and Bartlein, P.J., 2015, Bioclimatic variables calculated from statistically-downscaled historical (1901-2000) CRU TS 2.1 climate data and projected future (2001-2099) CMIP3 A2 and A1B simulated climate data on a 30-second grid of the northwest United States and southwest Canada, version 1.0: U.S. Geological Survey Data Release. http://dx.doi.org/10.5066/F7CF9N51
  • reference: Shafer, S.L., and Bartlein, P.J., 2015, LPJ biomes (30-year mean) simulated using monthly historical (1901-2000) CRU TS 2.1 climate data and projected future (2001-2099) CMIP3 A2 and A1B simulated climate data on a 30-second grid of the northwest United States and southwest Canada, version 1.0: U.S. Geological Survey Data Release. http://dx.doi.org/10.5066/F73X84PH
  • rights: Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  • Information on the model used to create this dataset

Keywords:

  • : climate
  • : bioclimate
  • : biomes
  • : LPJ
  • : CMIP3

Creators:

Publishers:

GeospatialCoverage:

  • Longitude: -136.567 to -103.0 degrees_east
  • Latitude: 38.0 to 58.0 degrees_north

TimeCoverage:

  • Start: 2001-01-01
  • End: 2099-01-01
  • Duration: 98.000 years
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