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  2. LBA REGIONAL FRESHWATER WETLANDS, 1-DEGREE (STILLWELL-SOLLER ET AL.)

This data set consists of a subset of a 1-degree gridded global freshwater wetlands database (Stillwell-Soller et al. 1995). This subset was created for the study area of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) in South America (i.e., 10N to 25S, 30W to 85W). The data are in ASCII GRID format. The global freshwater wetlands database was assembled from two data sets: Aselman and Crutzen's (1989) wetlands data set and Klinger's political Alaska data set (pers. comm. to L. M. Stillwell-Soller, 1995). The aim of Stillwell-Soller's global data set was to provide an accurate, comprehensive and uniform set of files for convenient specification of wetlands in global climate models. The main source of data was Aselman and Crutzen's global maps of percent cover for a variety of wetlands categories at 2.5-degree latitude by 5-degree longitude resolution. There was some reorganization for seasonally varying categories. Aselman and Crutzen's data were interpolated to a standard 1-degree by 1-degree grid through bilinear interpolation. Their data were geographically complete except for the Alaskan region, for which Klinger's data set provided values. More information can be found at ftp://daac.ornl.gov/data/lba/land_use_land_cover_change/soller_wetlands/comp/soller_readme.pdf. LBA was a cooperative international research initiative led by Brazil. NASA was a lead sponsor for several experiments. LBA was designed to create the new knowledge needed to understand the climatological, ecological, biogeochemical, and hydrological functioning of Amazonia; the impact of land use change on these functions; and the interactions between Amazonia and the Earth system. More information about LBA can be found at http://www.daac.ornl.gov/LBA/misc_amazon.html.

Stillwell-Soller, L. M., L. F. Klinger, D. Pollard, and S. L. Thompson. 2003. LBA Regional Freshwater Wetlands, 1-Degree (Stillwell-Soller et al.). Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/674.

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This data set contains 51 data granules
Granule Name Variables Metadata Preview Image
    All floodplains discounting seasonality Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
All floodplains discounting seasonality
 
    April rice paddies Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
April rice paddies
 
    April seasonal floodplains Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
April seasonal floodplains
 
    April seasonal swamp/marsh Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
April seasonal swamp/marsh
 
    August rice paddies Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
August rice paddies
 
    August seasonal floodplains Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
August seasonal floodplains
 
    August seasonal swamp/marsh Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
August seasonal swamp/marsh
 
    Bog (Aselmand & Crutzen data) Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
Bog (Aselmand & Crutzen data)
 
    Bog (merged Aselmand & Crutzen & Klinger data) Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
Bog (merged Aselmand & Crutzen & Klinger data)
 
    December rice paddies Projection: WGS 84
Spatial Extent: N: 10, S: -25, E: -30, W: -85
Start DateTime: 1995-01-01
End DateTime: 1995-09-01
December rice paddies