Precipitation Under PCM A2 Scenario
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This collection of layers includes summary statistics from input and output data used for simulation of vegetation response to climate change in California. The historical data layers represent the 30 year period from 1961 to 1990. Future data layers represent each four 20 year periods: 2010-2029, 2030-2049, 2060-2079, and 2080-2099. The simulations were performed using MC1 dynamic global vegetation model (DGVM), source code revision 152. The model was parameterized and evaluated by the DGVM research group at the US Forest Service Pacific Northwest Research Station, with support from the Western Wildland Environmental Threat Assessment Center. The model was parameterized to maximize concordance with maps of potential natural vegetation and seasonal patterns of vegetation production for the historical period (1895-2009). <br />  <br /> The input data representing historical climate spans 1895 to 2009, and were downscaled by Flint and Flint (2012) from 2.5 arc-minute resolution PRISM data (Daly et al 1994). The input data representing future climate comprise four climate projections, representing two SRES emissions scenarios A2 and B1 simulated by two general circulation models (GCMâs) PCM and GFDL. For details on the selection of the four climate projections, see Cayan et al (2008). PCMâs climate projections span years 2000 to 2009, and GFDLâs climate projections span years 2001 to 2100. The input climate data were originally downscaled to 270 m resolution by Flint and Flint (2012) but aggregated up to 30 arc-second resolution for MC1 simulation. All input and output data cover all of California and the major basins draining into it. <br />  <br /> //------------- HISTORICAL --------------- <br />  <br /> Layer: Historical_annual_ppt <br /> Units: mm H2O yr-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: Historical_annual_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: Historical_seasonal_ppt <br /> Units: mm H2O season-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: Historical_seasonal_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: Historical_annual_consumed <br /> MC1 Variable: CONSUMEDyr <br /> Units: g C m-2 y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station 2013 <br />  <br /> Layer: Historical_annual_runoff <br /> MC1 Variable: STREAMFLOWyr <br /> Units: mm H2O y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station 2013 <br />  <br /> Layer: Historical_annual_snow_max <br /> MC1 Variable: snow_max <br /> Units: mm H2O <br /> Citations: USDA Forest Service Pacific Northwest Research Station 2013 <br />  <br /> Layer: Historical_annual_vegtype <br /> MC1 Variable: VTYPEyr <br /> Units: see Table 1 below <br /> Citations: USDA Forest Service Pacific Northwest Research Station 2013 <br />  <br /> //------------- GFDL A2 ------------------ <br />  <br /> Layer: GFDL_A2_annual_ppt <br /> Units: mm H2O yr-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: GFDL_A2_annual_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: GFDL_A2_seasonal_ppt <br /> Units: mm H2O season-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: GFDL_A2_seasonal_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: GFDL_A2_annual_consumed <br /> MC1 Variable: CONSUMEDyr <br /> Units: g C m-2 y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: GFDL_A2_annual_runoff <br /> MC1 Variable: STREAMFLOWyr <br /> Units: mm H2O y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: GFDL_A2_annual_snow_max <br /> MC1 Variable: snow_max <br /> Units: mm H2O <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: GFDL_A2_annual_vegtype <br /> MC1 Variable: VTYPEyr <br /> Units: see Table 1 below <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> //------------- GFDL B1 ------------------ <br />  <br /> Layer: GFDL_B1_annual_ppt <br /> Units: mm H2O yr-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: GFDL_B1_annual_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: GFDL_B1_seasonal_ppt <br /> Units: mm H2O season-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: GFDL_B1_seasonal_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: GFDL_B1_annual_consumed <br /> MC1 Variable: CONSUMEDyr <br /> Units: g C m-2 y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: GFDL_B1_annual_runoff <br /> MC1 Variable: STREAMFLOWyr <br /> Units: mm H2O y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: GFDL_B1_annual_snow_max <br /> MC1 Variable: snow_max <br /> Units: mm H2O <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: GFDL_B1_annual_vegtype <br /> MC1 Variable: VTYPEyr <br /> Units: see Table 1 below <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> //------------- PCM A2 ------------------ <br />  <br /> Layer: PCM_A2_annual_ppt <br /> Units: mm H2O yr-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: PCM_A2_annual_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: PCM_A2_seasonal_ppt <br /> Units: mm H2O season-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: PCM_A2_seasonal_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: PCM_A2_annual_consumed <br /> MC1 Variable: CONSUMEDyr <br /> Units: g C m-2 y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: PCM_A2_annual_runoff <br /> MC1 Variable: STREAMFLOWyr <br /> Units: mm H2O y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: PCM_A2_annual_snow_max <br /> MC1 Variable: snow_max <br /> Units: mm H2O <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: PCM_A2_annual_vegtype <br /> MC1 Variable: VTYPEyr <br /> Units: see Table 1 below <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> //------------- PCM B1 ------------------ <br />  <br /> Layer: PCM_B1_annual_ppt <br /> Units: mm H2O yr-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: PCM_B1_annual_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: PCM_B1_seasonal_ppt <br /> Units: mm H2O season-1 <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: PCM_B1_seasonal_tmp <br /> Units: degrees Celsius <br /> Citations: Flint and Flint 2012 <br />  <br /> Layer: PCM_B1_annual_consumed <br /> MC1 Variable: CONSUMEDyr <br /> Units: g C m-2 y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: PCM_B1_annual_runoff <br /> MC1 Variable: STREAMFLOWyr <br /> Units: mm H2O y-1 <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: PCM_B1_annual_snow_max <br /> MC1 Variable: snow_max <br /> Units: mm H2O <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Layer: PCM_B1_annual_vegtype <br /> MC1 Variable: VTYPEyr <br /> Units: see Table 1 below <br /> Citations: USDA Forest Service Pacific Northwest Research Station <br />  <br /> Table 1. Vegetation Types <br />  <br /> Code    Type <br /> 1             Barren <br /> 2             Alpine <br /> 6             Subalpine <br /> 7             Maritime Needleleaf Forest <br /> 8             Temperate Needleleaf Forest <br /> 11          Temperate Warm Mixed Forest <br /> 12          Temperate Needleleaf Woodland <br /> 15          Temperate Warm Mixed Woodland <br /> 16          Temperate Shrubland <br /> 17          Temperate Grassland <br /> 18          Temperate Desert <br /> 21          Subtropical Evergreen Broadleaf Forest <br /> 22          Subtropical Mixed Forest <br /> 25          Subtropical Evergreen Broadleaf Woodland <br /> 26          Subtropical Mixed Woodland <br /> 27          Subtropical Shrubland <br /> 28          Subtropical Grassland <br /> 29          Subtropical Desert <br />  <br />  <br /> References: <br />  <br /> Cayan DR, Maurer EP, Dettinger MD, Tyree M, Hayhoe K (2008) Climate change scenarios for the California region. Climatic Change 87(Suppl 1):S21-S42. <br />  <br /> Daly, C., R.P. Neilson, and D.L. Phillips, 1994: A Statistical-Topographic Model for Mapping Climatological Precipitation over Mountanious Terrain. J. Appl. Meteor., 33, 140-158. <br />  <br /> Flint, Lorraine E., and Alan L. Flint. "Downscaling future climate scenarios to fine scales for hydrologic and ecological modeling and analysis." Ecological Processes 1.1 (2012): 1-15. <br />
Citation
Title
Precipitation Under PCM A2 Scenario
Original Data Basin Creation Date Date
2013-05-29
Original Data Basin Modified Date Date
2013-05-29
Topic Category:
geoscientificInformation
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Keywords
climate change
california
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Data Basin
revision Date
2018-06-27
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eng
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Geographic Bounding Box
westBoundLongitude
-124.5042
eastBoundLongitude
-113.6892
northBoundLatitude
43.5149
southBoundLatitude
32.301
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2014-05-23T15:35:31Z
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John B. Kim
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