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  2. ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 1991-2011

This data set provides the location and extent of surface water (open water not including vegetated wetlands) for the entire Boreal and Tundra regions of North America for three epochs, centered on 1991, 2001, and 2011. Each of the products were generated with at least three years of ice-free Landsat imagery. The data are at 30-m resolution and were derived from time series of Landsat 4 and 5 Thematic Mapper (TM) data and Landsat 7 Enhanced Thematic Mapper (ETM+) covering all of Alaska and all provinces of Canada. The overall goal was to generate a map of the nominal extent of water for a given epoch, where nominal is neither the maximum nor the minimum but rather a representative extent for that time period.

Carroll, M.L., M.R. Wooten, C. Dimiceli, R.A. Sohlberg, and J.R.G. Townshend. 2016. ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 1991-2011. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1324

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This data set contains 6 data granules
Granule Name Variables Metadata Preview Image
    ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 1991 water coverage Projection: Canada Albers Equal Area Conic (ABoVE WGS84)
Spatial Extent: N: 4640000, S: 320000, E: 919980, W: -3400020
Start DateTime: 1991-01
End DateTime: 1991-12
ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 1991
 
    ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 1991, Quality Flags quality flag Projection: Canada Albers Equal Area Conic (ABoVE WGS84)
Spatial Extent: N: 4640000, S: 320000, E: 919980, W: -3400020
Start DateTime: 1991-01
End DateTime: 1991-12
ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 1991, Quality Flags
 
    ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 2001 water coverage Projection: Canada Albers Equal Area Conic (ABoVE WGS84)
Spatial Extent: N: 4640000, S: 320000, E: 919980, W: -3400020
Start DateTime: 2001-01
End DateTime: 2001-12
ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 2001
 
    ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 2001, Quality Flags quality flag Projection: Canada Albers Equal Area Conic (ABoVE WGS84)
Spatial Extent: N: 4640000, S: 320000, E: 919980, W: -3400020
Start DateTime: 2001-01
End DateTime: 2001-12
ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 2001, Quality Flags
 
    ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 2011 water coverage Projection: Canada Albers Equal Area Conic (ABoVE WGS84)
Spatial Extent: N: 4640000, S: 320000, E: 919980, W: -3400020
Start DateTime: 2011-01
End DateTime: 2011-12
ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 2011
 
    ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 2011, Quality Flags quality flag Projection: Canada Albers Equal Area Conic (ABoVE WGS84)
Spatial Extent: N: 4640000, S: 320000, E: 919980, W: -3400020
Start DateTime: 2011-01
End DateTime: 2011-12
ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 2011, Quality Flags