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dc.contributor.authorPotter, ERen
dc.contributor.authorOrr, Aen
dc.contributor.authorWillis, Ianen
dc.contributor.authorBannister, Den
dc.contributor.authorWagnon, Pen
dc.date.accessioned2020-12-08T00:31:01Z
dc.date.available2020-12-08T00:31:01Z
dc.date.issued2021-03-01en
dc.identifier.issn1530-261X
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/314847
dc.description.abstractMany of the glaciers in the Nepalese Himalaya are partially covered in a layerof loose rock known as debris cover. In the Dudh Koshi River Basin, Nepal,approximately 25% of glaciers are debris-covered. Debris-covered glaciers havebeen shown to have a substantial impact on near-surface meteorological vari-ables and the surface energy balance, in comparison to clean-ice glaciers. TheWeather Research and Forecasting (WRF) model is often used for high-resolution weather and climate modelling, however representation of debris-covered glaciers is not included in the standard land cover and soil categories.Here we include a simple representation of thick debris-covered glaciers in theWRF model, and investigate the impact on the near-surface atmosphere overthe Dudh Koshi River Basin for July 2013. Inclusion of this new category isfound to improve the model representation of near-surface temperature andrelative humidity, in comparison with a simulation using the default categoryof clean-ice glaciers, when compared to observations. The addition of the newdebris-cover category in the model warms the near-surface air over the debris-covered portion of the glacier, and the wind continues further up the valley,compared to the simulation using clean-ice. This has consequent effects onwater vapour and column-integrated total water path, over both the portions ofthe glacier with and without debris cover. Correctly simulating meteorologicalvariables such as these is vital for accurate precipitation forecasts overglacierized regions, and therefore estimating future glacier melt and river run-off in the Himalaya. These results highlight the need for debris cover to be included in high-resolution regional climate models over debris-covered glaciers.
dc.description.sponsorshipNERC
dc.publisherWiley
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleMeteorological impacts of a novel debris-covered glacier category in a regional climate model across a Himalayan catchmenten
dc.typeArticle
prism.issueIdentifier3en
prism.publicationDate2021en
prism.publicationNameAtmospheric Science Lettersen
prism.volume22en
dc.identifier.doi10.17863/CAM.61953
dcterms.dateAccepted2020-11-09en
rioxxterms.versionofrecord10.1002/asl.1018en
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2021-03-01en
dc.contributor.orcidPotter, ER [0000-0001-5273-1292]
dc.contributor.orcidWillis, Ian [0000-0002-0750-7088]
dc.identifier.eissn1530-261X
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idNERC (NE/L002507/1)


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International