DSpace Repository

Integrated modular modeling of water and nutrients from point and nonpoint sources in the Patuxent River watershed

Show simple item record

dc.contributor.author Liu, Zhi-Jun en
dc.contributor.author Weller, Donald E. en
dc.contributor.author Jordan, Thomas E. en
dc.contributor.author Correll, David L. en
dc.contributor.author Boomer, K. B. en
dc.date.accessioned 2012-02-21T13:49:52Z
dc.date.available 2012-02-21T13:49:52Z
dc.date.issued 2008
dc.identifier.citation Liu, Zhi-Jun, Weller, Donald E., Jordan, Thomas E., Correll, David L., and Boomer, K. B. 2008. "<a href="https://repository.si.edu/handle/10088/17947">Integrated modular modeling of water and nutrients from point and nonpoint sources in the Patuxent River watershed</a>." <em>Journal of the American Water Resources Association</em>. 44:700&ndash;703. <a href="https://doi.org/10.1111/j.1752-1688.2008.00200.x">https://doi.org/10.1111/j.1752-1688.2008.00200.x</a> en
dc.identifier.uri http://hdl.handle.net/10088/17947
dc.description.abstract We present a simple modular landscape simulation model that is based on a watershed modeling framework in which different sets of processes occurring in a watershed can be simulated separately with different models. The model consists of three loosely coupled submodels: a rainfall-runoff model (TOPMODEL) for runoff generation in a subwatershed, a nutrient model for estimation of nutrients from nonpoint sources in a subwatershed, and a stream network model for integration of point and nonpoint sources in the routing process. The model performance was evaluated using monitoring data in the watershed of the Patuxent River, a tributary to the Chesapeake Bay in Maryland, from July 1997 through August 1999. Despite its simplicity, the landscape model predictions of streamflow, and sediment and nutrient loads were as good as or better than those of the Hydrological Simulation Program-Fortran model, one of the most widely used comprehensive watershed models. The landscape model was applied to predict discharges of water, sediment, silicate, organic carbon, nitrate, ammonium, organic nitrogen, total nitrogen, organic phosphorus, phosphate, and total phosphorus from the Patuxent watershed to its estuary. The predicted annual water discharge to the estuary was very close to the measured annual total in terms of percent errors for both years of the study period (=2%). The model predictions for loads of nutrients were also good (20-30%) or very good (&lt;20%) with exceptions of sediment (40%), phosphate (36%), and organic carbon (53%) for Year 1. en
dc.relation.ispartof Journal of the American Water Resources Association en
dc.title Integrated modular modeling of water and nutrients from point and nonpoint sources in the Patuxent River watershed en
dc.type Journal Article en
dc.identifier.srbnumber 78525
dc.identifier.doi 10.1111/j.1752-1688.2008.00200.x
rft.jtitle Journal of the American Water Resources Association
rft.volume 44
rft.spage 700
rft.epage 703
dc.description.SIUnit SERC en
dc.citation.spage 700
dc.citation.epage 703


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Browse

My Account

Statistics