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Description
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.
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Fekete, B. M., Vorosmarty, C. J., Hall, F. G., Collatz, G. J., Meeson, B. W., Los, S. O., Brown de Colstoun, E., & Landis, D. R. (2011). ISLSCP II UNH/GRDC Composite Monthly Runoff (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/994 Date Accessed: 2026-10-08
@article{fekete_vorosmarty_hall_collatz_meeson_los_brown de colstoun_landis_2011,
title={ISLSCP II UNH/GRDC Composite Monthly Runoff},
url={https://www.earthdata.nasa.gov/data/catalog/ornl-cloud-comp-runoff-monthly-xdeg-994-1},
DOI={10.3334/ORNLDAAC/994},
abstractNote={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.},
publisher={ORNL Distributed Active Archive Center},
author={Fekete, B.M. and Vorosmarty, C.J. and Hall, F.G. and Collatz, G.J. and Meeson, B.W. and Los, S.O. and Brown de Colstoun, E. and Landis, D.R.},
year={2011},
language={en},
}
Fekete, B. M., Vorosmarty, C. J., Hall, F. G., Collatz, G. J., Meeson, B. W., Los, S. O., Brown de Colstoun, E., & Landis, D. R. (2011). ISLSCP II UNH/GRDC Composite Monthly Runoff (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/994 Date Accessed: 2026-10-08
Fekete, B.M., et al. “ISLSCP II UNH/GRDC Composite Monthly Runoff.” With ORNL DAAC, Version 1, ORNL Distributed Active Archive Center, 1 Jan. 2011, https://doi.org/10.3334/ORNLDAAC/994. Date Accessed: 2026-10-08
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