Ecology Program: Understanding sources and sinks of
nutrients and sediment in the upper
is a large-watershed-scale model designed to allow planners and other
stakeholders to explore scenarios for reducing N fluxes from the landscape. We
have been funded by the US EPA STAR program and NOAAs CHRP program to develop
ReNuMa, a "descendent" of the GWLF model of Haith and Shoemaker
(1987). This lumped parameter model has been an excellent predictor of
freshwater discharge for the Hudson River and its tributaries on a fine
temporal scale, and a good predictor of inputs of sediment and organic carbon
on a monthly to seasonal time scale (Howarth et al. 1991; Swaney et al. 1996).
GWLF has also been used to estimate nutrient loads into the Delaware River
(Haith and Shoemaker 1987), the Tar-Pamlico estuary (Dodd and Tippett 1994),
Genealogy of the GWLF family of models (modified from Swaney et al., in prep).
ERF 2003 Poster detailing ReNuMa
ASLO 2005 poster about ReNuMa
applied to watersheds in the northeastern
ReNuMa as applied to upper Susquehanna River watershed (Under Construction)
Support for development of ReNuMa has been provided by:
Current work is being supported by NOAA award NA05NOS478120 from the NOAA Center for Sponsored Coastal Ocean Research, Coastal Hypoxia Research Program, to D. Scavia, G. Helfand, R. Howarth, R. Alexander and D. Breitberg.
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