Impact of projected 21st century climate change on basin hydrology and runoff in the Delaware River Basin, USA

A gridded hydrologic model was developed to assess the impact of projected climate change on future Delaware River Basin (DRB) hydrology. The DRB serves as a water supply resource to over 15 million people. Model evaluation statistics for both water year and monthly runoff projections indicate that...

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Autores principales:	Timothy W. Hawkins, Christopher J. Woltemade
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	climate change delaware river basin potential evapotranspiration runoff streamflow water supply Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/e23423673b4648948c1a3a337739f4a9
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spelling	oai:doaj.org-article:e23423673b4648948c1a3a337739f4a92021-11-05T18:40:44ZImpact of projected 21st century climate change on basin hydrology and runoff in the Delaware River Basin, USA2040-22442408-935410.2166/wcc.2019.140https://doaj.org/article/e23423673b4648948c1a3a337739f4a92021-02-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/1/60https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354A gridded hydrologic model was developed to assess the impact of projected climate change on future Delaware River Basin (DRB) hydrology. The DRB serves as a water supply resource to over 15 million people. Model evaluation statistics for both water year and monthly runoff projections indicate that the model is able to capture well the hydrologic conditions of the DRB. Basinwide, annual temperature is projected to increase from 2.0 to 5.5 °C by 2080–2099. Correspondingly, potential and actual evapotranspiration, precipitation, rainfall, and runoff are all projected to increase, while snowfall, snow water storage, snowmelt, and subsurface moisture are all projected to decrease. By 2080–2099, basinwide summer subsurface moisture is projected to decrease 7–18% due to increased evapotranspiration, while winter runoff is projected to increase 15–43% due to increased precipitation and snowmelt and a conversion of snowfall to rainfall. Significant spatial variability in future changes to hydrologic parameters exists across the DRB. Changes in the timing and amount of future runoff and other hydrologic conditions need to be considered for future water resource management.Timothy W. HawkinsChristopher J. WoltemadeIWA Publishingarticleclimate changedelaware river basinpotential evapotranspirationrunoffstreamflowwater supplyEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 1, Pp 60-81 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	climate change delaware river basin potential evapotranspiration runoff streamflow water supply Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	climate change delaware river basin potential evapotranspiration runoff streamflow water supply Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Timothy W. Hawkins Christopher J. Woltemade Impact of projected 21st century climate change on basin hydrology and runoff in the Delaware River Basin, USA
description	A gridded hydrologic model was developed to assess the impact of projected climate change on future Delaware River Basin (DRB) hydrology. The DRB serves as a water supply resource to over 15 million people. Model evaluation statistics for both water year and monthly runoff projections indicate that the model is able to capture well the hydrologic conditions of the DRB. Basinwide, annual temperature is projected to increase from 2.0 to 5.5 °C by 2080–2099. Correspondingly, potential and actual evapotranspiration, precipitation, rainfall, and runoff are all projected to increase, while snowfall, snow water storage, snowmelt, and subsurface moisture are all projected to decrease. By 2080–2099, basinwide summer subsurface moisture is projected to decrease 7–18% due to increased evapotranspiration, while winter runoff is projected to increase 15–43% due to increased precipitation and snowmelt and a conversion of snowfall to rainfall. Significant spatial variability in future changes to hydrologic parameters exists across the DRB. Changes in the timing and amount of future runoff and other hydrologic conditions need to be considered for future water resource management.
format	article
author	Timothy W. Hawkins Christopher J. Woltemade
author_facet	Timothy W. Hawkins Christopher J. Woltemade
author_sort	Timothy W. Hawkins
title	Impact of projected 21st century climate change on basin hydrology and runoff in the Delaware River Basin, USA
title_short	Impact of projected 21st century climate change on basin hydrology and runoff in the Delaware River Basin, USA
title_full	Impact of projected 21st century climate change on basin hydrology and runoff in the Delaware River Basin, USA
title_fullStr	Impact of projected 21st century climate change on basin hydrology and runoff in the Delaware River Basin, USA
title_full_unstemmed	Impact of projected 21st century climate change on basin hydrology and runoff in the Delaware River Basin, USA
title_sort	impact of projected 21st century climate change on basin hydrology and runoff in the delaware river basin, usa
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/e23423673b4648948c1a3a337739f4a9
work_keys_str_mv	AT timothywhawkins impactofprojected21stcenturyclimatechangeonbasinhydrologyandrunoffinthedelawareriverbasinusa AT christopherjwoltemade impactofprojected21stcenturyclimatechangeonbasinhydrologyandrunoffinthedelawareriverbasinusa
_version_	1718444134693339136

Impact of projected 21st century climate change on basin hydrology and runoff in the Delaware River Basin, USA

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