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.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 29, 2026, 02:14 (UTC)
Created April 1, 2025, 14:08 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id bfaa78fb-0918-4aad-af34-0c654b000e64
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/1324
license https://www.usa.gov/government-works
modified 2026-09-21T22:16:02Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 74ce14157171699d1299706ddd940475671c3fb02e7253c6302c631c787ae686
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -177.475, "NorthBoundingCoordinate": 82.3729, "EastBoundingCoordinate": -53.9393, "SouthBoundingCoordinate": 41.7039}]]
temporal 1990-01-01/2012-12-31
theme {"Earth Science"}