Download 205:Tree Savanna Mixed Cool

1) Descriptive Title: Potential Vegetation for an Average Historical Climate (1961-1990) as
Simulated by the MAPSS model.
2) Credits: Ronald. P. Neilson. USDA Forest Service / PNW Research Station.
3) Citation: Neilson R.P. 1995. A Model for Predicting Continental-Scale Vegetation
Destribution and Water Balance. Ecological Applications 5 (2): 362-385.
4) Description: MAPSS (Mapped Atmosphere-Plant-Soil System) is a landscape to global
vegetation distribution model that was developed to simulate the potential biosphere
impacts and biosphere-atmosphere feedbacks from climatic change. Model output from
MAPSS has been used extensively in the Intergovernmental Panel on Climate Change's
(IPCC) regional and global assessments of climate change impacts on vegetation and in
several other projects. The climate data used to run MAPSS were created using the
PRISM (Parameter-elevation Regressions on Independent Slopes Model) climate
mapping system, developed by Dr. Christopher Daly, PRISM Climate Group director.
5) Tags: Potential Vegetation, MAPSS
6) Use constraints: None. But bear in mind that that neither the United States Government
nor any of its employees, makes any warranty, express or implied, including the
warranties of merchantability and fitness for a particular purpose, or assumes any legal
liability or responsibility for the accuracy, completeness, or usefulness of any
information, apparatus, product, or process disclosed, or represents that its use would not
infringe privately owned rights.
7) Spatial Resolution of Dataset: The bounding box for the region being simulated is
roughly: north: 49.0, south: 25.0, east: -67.0, west: -124.5. This map is projected using an
Albers Equal Area projection. Grid cells are 10 kilometers in size. Number of columns:
470, Number of Rows: 295; X position of the lower left corner (meters) -2400000; Y
position of lower left corner (meters): 250000. Gridcell size (meters): 10000. Projection
Parameters:
PROJECTION ALBERS
UNITS METERS
PARAMETERS
29 30 00 /* 1st standard parallel
45 30 00 /* 2nd standard parallel
-96 00 00 /* Central meridian
23 00 00 /* Latittude of projection's origin
0.0
/* False easting
0.0
/* False northing
8) Attribute description: Vegetation Codes:
100:Forest Deciduous Broadleaf
101:Forest Mixed Warm (DEB)
102:Forest Mixed Cool
105:Forest Evergreen Broadleaf Tropical
107:Forest Evergreen Needle Tiaga
108:Forest Mixed Warm (EN)
109:Forest Seasonal Tropical (ED)
110:Forest Savanna Dry Tropical (ED)
111:Forest Hardwood Cool
112:Forest Evergreen Needle Maritime
113:Forest Evergreen Needle Continental
200:Tree Savanna Deciduous Broadleaf
201:Tree Savanna Mixed Warm (DEB)
205:Tree Savanna Mixed Cool (EN)
206:Tree Savanna Mixed Warm (EN)
207:Tree Savanna Evergreen Needle Maritime
208:Tree Savanna Evergreen Needle Continental
209:Tree Savanna PJ Continental
210:Tree Savanna PJ Maritime
211:Tree Savanna PJ Xeric Continental
300:Chaparral
301:Open Shrubland No Grass
302:Shrub Savanna Deciduous Broadleaf
303:Shrub Savanna Mixed Warm (DEB)
305:Shrub Savanna Tropical (EB)
307:Shrub Savanna Mixed Cool (EN)
308:Shrub Savanna Evergreen Micro
309:Shrub Savanna Mixed Warm (EN)
310:Shrub Savanna SubTropical Mixed
311:Shrubland SubTropical Xeromorphic
312:Shrubland SubTropical Mediterranean
313:Shrubland Temperate Conifer
314:Shrubland Temperate Xeromorphic Conifer
404:Grassland Semi Desert
405:Grass Northern Mixed Tall C3
406:Grass Prairie Tall C4
407:Grass Northern Mixed Mid C3
408:Grass Southern Mixed Mid C4
409:Grass Dry Mixed Short C3
410:Grass Prairie Short C4
411:Grass Northern Tall C3
412:Grass Northern Mid C3
413:Grass Dry Short C3
414:Grass Tall C3
415:Grass Mid C3
416:Grass Short C3
417:Grass Tall C3/C4
418:Grass Mid C3/C4
419:Grass Short C3/C4
420:Grass Tall C4
421:Grass Mid C4
422:Grass Short C4
423:Grass Semi-desert C3
424:Grass Semi-desert C3/C4
425:Grass Semi-desert C4
500:Desert Boreal
501:Desert Temperate
502:Desert Subtropical
503:Desert Tropical
504:Desert Extreme
600:Taiga/Tundra
601:Tundra
602:Ice
9)
Contact Information: Ray Drapek, [email protected].
10) Time period represented by dataset: This is potential vegetation based on an equilibrium
model running over an average climate for the years 1961-1990.