ISLSCP II UNH/GRDC Composite Monthly Runoff

The University of New Hampshire (UNH)/Global Runoff Data Centre (GRDC) composite runoff data combines simulated water balance model runoff estimates derived from climate forcing with monitored river discharge. It can be viewed as a data assimilation applied in a water balance model context (conceptually similar to the commonly used 4DDA techniques used in meteorological modeling). Such a data assimilation scheme preserves the spatial specificity of the water balance calculations while constrained by the more accurate discharge measurement. There are 11 data files in this data set and 1 changemap file which shows the differences between the ISLSCP II land/water mask and the original data set.

Data and Resources

Field Value
accessLevel public
bureauCode {026:00}
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catalog_@id https://data.nasa.gov/data.json
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citation Fekete, B.M., C.J. Vorosmarty, F.G. Hall, G.J. Collatz, B.W. Meeson, S.O. Los, E.Brown De Colstoun, and D.R. Landis. 2011. ISLSCP II UNH/GRDC Composite Monthly Runoff. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/994
graphic-preview-description Browse Image
graphic-preview-file https://daac.ornl.gov/graphics/browse/sdat-tds/994_1_fit.png
identifier C179002929-ORNL_DAAC
issued 2011-02-25
landingPage https://doi.org/10.3334/ORNLDAAC/994
language {en-US}
metadata_type geospatial
modified 2019-04-15
programCode {026:001}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash e1d067b3ee9daec0cf614466064e4d881aaff364
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
temporal 1986-01-01T00:00:00Z/1995-12-31T23:59:59Z
theme {"ISLSCP II",geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • biosphere
  • ckan
  • earth-science
  • ecological-dynamics
  • ecosystems
  • geo
  • geoss
  • land-surface
  • national
  • north-america
  • topography
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer undefined
maintainer_email uso@daac.ornl.gov
metadata_created 2025-11-21T06:30:57.619859
metadata_modified 2025-11-21T06:30:57.619863
notes The University of New Hampshire (UNH)/Global Runoff Data Centre (GRDC) composite runoff data combines simulated water balance model runoff estimates derived from climate forcing with monitored river discharge. It can be viewed as a data assimilation applied in a water balance model context (conceptually similar to the commonly used 4DDA techniques used in meteorological modeling). Such a data assimilation scheme preserves the spatial specificity of the water balance calculations while constrained by the more accurate discharge measurement. There are 11 data files in this data set and 1 changemap file which shows the differences between the ISLSCP II land/water mask and the original data set.
num_resources 8
num_tags 14
title ISLSCP II UNH/GRDC Composite Monthly Runoff