Bedrock displacements in Greenland manifest ice mass variations, climate cycles and climate change

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dc.contributor.authorBevis, M.en
dc.contributor.authorWahr, J.en
dc.contributor.authorKhan, S. A.en
dc.contributor.authorMadsen, F. B.en
dc.contributor.authorBrown, A.en
dc.contributor.authorWillis, Michael J.en
dc.contributor.authorKendrick, E.en
dc.contributor.authorKnudsen, P.en
dc.contributor.authorBox, J. E.en
dc.contributor.authorVan Dam, T.en
dc.contributor.authorCaccamise, D. J.en
dc.contributor.authorJohns, B.en
dc.contributor.authorNylen, T.en
dc.contributor.authorAbbott, R.en
dc.contributor.authorWhite, S.en
dc.contributor.authorMiner, J.en
dc.contributor.authorForsberg, R.en
dc.contributor.authorZhou, H.en
dc.contributor.authorWang, J.en
dc.contributor.authorWilson, T.en
dc.contributor.authorBromwich, D.en
dc.contributor.authorFrancis, O.en
dc.date.accessioned2024-02-21T15:01:13Zen
dc.date.available2024-02-21T15:01:13Zen
dc.date.issued2012-07-11en
dc.description.abstractThe Greenland GPS Network (GNET) uses the Global Positioning System (GPS) to measure the displacement of bedrock exposed near the margins of the Greenland ice sheet. The entire network is uplifting in response to past and present-day changes in ice mass. Crustal displacement is largely accounted for by an annual oscillation superimposed on a sustained trend. The oscillation is driven by earth's elastic response to seasonal variations in ice mass and air mass (i.e., atmospheric pressure). Observed vertical velocities are higher and often much higher than predicted rates of postglacial rebound (PGR), implying that uplift is usually dominated by the solid earth's instantaneous elastic response to contemporary losses in ice mass rather than PGR. Superimposed on longer-term trends, an anomalous 'pulse' of uplift accumulated at many GNET stations during an approximate six-month period in 2010. This anomalous uplift is spatially correlated with the 2010 melting day anomaly.en
dc.description.versionPublished versionen
dc.format.extentPages 11944-11948en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1073/pnas.1204664109en
dc.identifier.eissn1091-6490en
dc.identifier.issn0027-8424en
dc.identifier.issue30en
dc.identifier.other1204664109 (PII)en
dc.identifier.pmid22786931en
dc.identifier.urihttps://hdl.handle.net/10919/118080en
dc.identifier.volume109en
dc.language.isoenen
dc.publisherProceedings of the National Academy of Sciencesen
dc.relation.urihttps://www.ncbi.nlm.nih.gov/pubmed/22786931en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.meshClimateen
dc.subject.meshSeasonsen
dc.subject.meshIce Coveren
dc.subject.meshElasticityen
dc.subject.meshGeographic Information Systemsen
dc.subject.meshGreenlanden
dc.subject.meshGeological Phenomenaen
dc.subject.meshClimate Changeen
dc.titleBedrock displacements in Greenland manifest ice mass variations, climate cycles and climate changeen
dc.title.serialProceedings of the National Academy of Sciences of the United States of Americaen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherJournal Articleen
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pubs.organisational-group/Virginia Tech/Scienceen
pubs.organisational-group/Virginia Tech/Science/Geosciencesen
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pubs.organisational-group/Virginia Tech/Science/COS T&R Facultyen

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