Impacts of climate change on terrestrial hydrological components and crop water use in the Chesapeake Bay watershed

Simple item page
dc.contributor.authorModi, Parthkumar A.en
dc.contributor.authorFuka, Daniel R.en
dc.contributor.authorEaston, Zachary M.en
dc.date.accessioned2022-04-26T12:55:31Zen
dc.date.available2022-04-26T12:55:31Zen
dc.date.issued2021-06en
dc.description.abstractThis study assessed the impacts of climate change on terrestrial hydrological components and Crop Water Use (CWU) over the Chesapeake Bay watershed using a combination of Global Climate Models (GCMs) and a land surface model. To better understand the impacts of climate change on the hydrological cycle, long-term simulations of multiple earth system models from the Coupled Model Intercomparison Project (CMIP Phase 5) are statistically downscaled and bias-corrected using Multivariate Adaptive Constructed Analogs (MACA) scheme for use as model forcing. Precipitation indices from the twenty MACA-based GCMs are used to identify six best performing models. A mesoscale approach is developed, where CWU is estimated by accounting for the impacts of changing climate conditions and rising CO2 levels. Daily grid-based crop coefficients are derived from evapotranspiration data. The findings indicate a significant annual increase in precipitation (10 %) and temperature (+4.5 K) for the RCP 8.5 scenario towards the end of the 21st century. A significant reduction (13 % and 17 % respectively) in CWU is estimated for corn and soybeans, resulting from increased total precipitation and rising CO2 levels suppressing evapotranspiration. Our results indicate that even in a warmer regime, crop water use decreased due to rising CO2 concentrations due to climate change.en
dc.description.notesThis work was supported in part by the National Science Foundation (NSF) , Water, Sustainability, and Climate Program (grant number CBET-1360280)en
dc.description.sponsorshipNational Science Foundation (NSF)National Science Foundation (NSF) [CBET-1360280]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.ejrh.2021.100830en
dc.identifier.eissn2214-5818en
dc.identifier.other100830en
dc.identifier.urihttp://hdl.handle.net/10919/109745en
dc.identifier.volume35en
dc.language.isoenen
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectNoah-MPen
dc.subjectCrop water useen
dc.subjectMACAen
dc.subjectGlobal climate modelsen
dc.subjectClimate changeen
dc.titleImpacts of climate change on terrestrial hydrological components and crop water use in the Chesapeake Bay watersheden
dc.title.serialJournal of Hydrology-Regional Studiesen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1-s2.0-S2214581821000598-main.pdf
Size:
7.98 MB
Format:
Adobe Portable Document Format
Description:
Published version
Download

Collections

Scholarly Works, Biological Systems Engineering