LBA Regional Hydrographic Data, 1-Degree, Release 2.2 (Cogley)

This subset of the Global Hydrographic data set (GGHYDRO) Release 2.2 for the study area of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) in South America (i.e., longitude 85 deg to 30 deg W, latitude 25 deg S to 10 deg N) is organized into 19 files containing terrain type, stream frequency counts, major drainage basins, main features of the cryosphere surface, and ice/water runoff per year for the entire Earth's surface at a spatial resolution of 1- degree longitude by 1-degree latitude. The data are provided in both ASCII GRID and binary image file formats.More information and selected thumbnails images can be found at: ftp://daac.ornl.gov/data/lba/surf_hydro_and_water_chem/gghydro/comp/README. Exposed land not covered by swamp, intermittent water bodies, glacier ice, sand dunes, saltmarsh or salt flats (LAND)2. Perennial freshwater lakes (FLAK)3. Swamp, marsh and other wetlands(SWMP)4. Saltwater, whether marine or terrestrial (SLTW)5. Intermittent water bodies (ILAK)6. Glacier ice, including shelf ice but excluding pack ice (GLAC)7. Sand dunes (DUNE)8. Saltmarsh (SMRS)9. Salt flats (SFLT)10. Land + Swamp + Sand dunes + Saltmarsh (DSRF)11. Perennial rivers (FRIV)12. Intermittent rivers (IRIV)13. Land mask (MS05)14. Major drainage basins (BAS1)15. Smaller drainage basins (BAS2)16. Main features of the cryosphere (CRYO)17. Surface runoff of water (kg/m2/yr) (RNOF)18. Estimated root-mean-square error of RNOF (%) (RNER)19. Runoff of ice ( kg/m2/yr ) (RICE)

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 18, 2026, 01:05 (UTC)
Created April 1, 2025, 16:51 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id e3aa2264-a58a-4135-a1b4-660653465ab1
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/676
license https://www.usa.gov/government-works
modified 2026-08-10T22:16:01Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash dc85c454fa228c94280d20704cecdd022dccc3f5e6dc07781e17727d850d5b15
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -85, "NorthBoundingCoordinate": 10, "EastBoundingCoordinate": -30, "SouthBoundingCoordinate": -25}]]
temporal 1970-01-01/1990-01-01
theme {"Earth Science"}