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Evidence of Meltwater Retention within the Greenland Ice Sheet

Descriptive

TypeOfResource
Text
TitleInfo
Title
Evidence of Meltwater Retention within the Greenland Ice Sheet
Name (type = personal)
NamePart (type = family)
Rennermalm
NamePart (type = given)
Asa K.
Affiliation
Geography, Rutgers University
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Smith
NamePart (type = given)
Laurence C.
Affiliation
Department of Geography, University of California Los Angeles
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Chu
NamePart (type = given)
V. W.
Affiliation
Department of Geography, University of California Los Angeles
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Box
NamePart (type = given)
J. E.
Affiliation
Geological Survey of Denmark and Greenland
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Forster
NamePart (type = given)
R. R.
Affiliation
Department of Geography, University of Utah
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Van den Broeke
NamePart (type = given)
M. R.
Affiliation
Institute for Marine and Atmospheric Research, Utrecht University
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Van As
NamePart (type = given)
D.
Affiliation
Geological Survey of Denmark and Greenland
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Moustafa
NamePart (type = given)
Samiah E.
Affiliation
Geography, Rutgers University
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (authority = RutgersOrg-Department); (type = corporate)
NamePart
Geography
Name (authority = RutgersOrg-School); (type = corporate)
NamePart
School of Arts and Sciences (SAS) (New Brunswick)
Genre (authority = NISO JAV)
Version of Record (VoR)
Genre (authority = RULIB-FS)
Article, Refereed
Note (type = peerReview)
Peer reviewed
OriginInfo
Publisher
European Geosciences Union
DateIssued (encoding = w3cdtf); (keyDate = yes); (qualifier = exact)
2013
Abstract (type = abstract)
Greenland ice sheet mass losses have increased in recent decades with more than half of these attributed to surface meltwater runoff. However, the magnitudes of englacial storage, firn retention, internal refreezing and other hydrologic processes that delay or reduce true water export to the global ocean remain less understood, partly due to a scarcity of in situ measurements. Here, ice sheet surface meltwater runoff and proglacial river discharge between 2008 and 2010 near Kangerlussuaq, southwestern Greenland were used to establish sub- and englacial meltwater storage for a small ice sheet watershed (36–64 km2). This watershed lacks significant potential meltwater storage in firn, surface lakes on the ice sheet and in the proglacial area, and receives limited proglacial precipitation. Thus, ice sheet surface runoff not accounted for by river discharge can reasonably be attributed to retention in sub- and englacial storage. Evidence for meltwater storage within the ice sheet includes (1) characteristic dampened daily river discharge amplitudes relative to ice sheet runoff; (2) three cold-season river discharge anomalies at times with limited ice sheet surface melt, demonstrating that meltwater may be retained up to 1–6 months; (3) annual ice sheet watershed runoff is not balanced by river discharge, and while near water budget closure is possible as much as 54% of melting season ice sheet runoff may not escape to downstream rivers; (4) even the large meltwater retention estimate (54%) is equivalent to less than 1% of the ice sheet volume, which suggests that storage in en- and subglacial cavities and till is plausible. While this study is the first to provide evidence for meltwater retention and delayed release within the Greenland ice sheet, more information is needed to establish how widespread this is along the Greenland ice sheet perimeter.
Language
LanguageTerm (authority = ISO 639-3:2007); (type = text)
English
PhysicalDescription
InternetMediaType
application/pdf
Extent
13 p.
Extension
DescriptiveEvent
Type
Citation
AssociatedObject
Type
Journal
Relationship
Has part
Name
The Cryosphere
Identifier (type = volume and issue)
7(5)
Reference (type = digital)
http://dx.doi.org/10.5194/tc-7-1433-2013
Detail
1433-1445
Extension
DescriptiveEvent
Type
Grant award
AssociatedEntity
Role
Funder
Name
National Aeronautics and Space Administration
AssociatedObject
Type
Grant number
Name
NNG05GN89G
Detail
NASA Cryosphere Program
Extension
DescriptiveEvent
Type
Grant award
AssociatedEntity
Role
Funder
Name
National Aeronautics and Space Administration
AssociatedObject
Type
Grant number
Name
NNX11AQ38G
Detail
NASA Cryosphere Program
Subject (authority = LCSH)
Topic
Ice sheets--Greenland
Subject (authority = LCSH)
Topic
Meltwater--Greenland
RelatedItem (type = host)
TitleInfo
Title
Rennermalm, Asa
Identifier (type = local)
rucore30121800001
Identifier (type = doi)
doi:10.7282/T3000094
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Rights

RightsDeclaration (AUTHORITY = FS); (ID = rulibRdec0004)
Copyright for scholarly resources published in RUcore is retained by the copyright holder. By virtue of its appearance in this open access medium, you are free to use this resource, with proper attribution, in educational and other non-commercial settings. Other uses, such as reproduction or republication, may require the permission of the copyright holder.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
RightsEvent
Type
Permission or license
AssociatedObject
Type
License
Name
Multiple author license v. 1
Detail
I hereby grant to Rutgers, The State University of New Jersey (Rutgers) the non-exclusive right to retain, reproduce, and distribute the deposited work (Work) in whole or in part, in and from its electronic format, without fee. This agreement does not represent a transfer of copyright to Rutgers.Rutgers may make and keep more than one copy of the Work for purposes of security, backup, preservation, and access and may migrate the Work to any medium or format for the purpose of preservation and access in the future. Rutgers will not make any alteration, other than as allowed by this agreement, to the Work.I represent and warrant to Rutgers that the Work is my original work. I also represent that the Work does not, to the best of my knowledge, infringe or violate any rights of others.I further represent and warrant that I have obtained all necessary rights to permit Rutgers to reproduce and distribute the Work and that any third-party owned content is clearly identified and acknowledged within the Work.By granting this license, I acknowledge that I have read and agreed to the terms of this agreement and all related RUcore and Rutgers policies.
RightsHolder (type = personal)
Name
FamilyName
Rennermalm
GivenName
Asa K.
Role
Copyright holder
RightsHolder (type = personal)
Name
FamilyName
Smith
GivenName
L. C.
Role
Copyright holder
RightsHolder (type = personal)
Name
FamilyName
Chu
GivenName
V. W.
Role
Copyright holder
RightsHolder (type = personal)
Name
FamilyName
Box
GivenName
J. E.
Role
Copyright holder
RightsHolder (type = personal)
Name
FamilyName
Forster
GivenName
R. R.
Role
Copyright holder
RightsHolder (type = personal)
Name
FamilyName
Van den Broeke
GivenName
M. R.
Role
Copyright holder
RightsHolder (type = personal)
Name
FamilyName
Van As
GivenName
D.
Role
Copyright holder
RightsHolder (type = personal)
Name
FamilyName
Moustafa
GivenName
Samiah E.
Role
Copyright holder
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Technical

RULTechMD (ID = TECHNICAL1)
ContentModel
Manuscript
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