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Title

Characteristic Depths, Fluxes, and Timescales for Greenland's Tidewater Glacier Fjords From Subglacial Discharge-Driven Upwelling During Summer

Author
Corresponding AuthorSlater,D. A.
Publication Years
2022-05-28
DOI
Source Title
ISSN
0094-8276
EISSN
1944-8007
Volume49Issue:10
Abstract
Greenland's glacial fjords are a key bottleneck in the earth system, regulating exchange of heat, freshwater and nutrients between the ice sheet and ocean and hosting societally important fisheries. We combine recent bathymetric, atmospheric, and oceanographic data with a buoyant plume model to show that summer subglacial discharge from 136 tidewater glaciers, amounting to 0.02 Sv of freshwater, drives 0.6–1.6 Sv of upwelling. Bathymetric analysis suggests that this is sufficient to renew most major fjords within a single summer, and that these fjords provide a path to the continental shelf that is deeper than 200 m for two-thirds of the glaciers. Our study provides a first pan-Greenland inventory of tidewater glacier fjords and quantifies regional and ice sheet-wide upwelling fluxes. This analysis provides important context for site-specific studies and is a step toward implementing fjord-scale heat, freshwater and nutrient fluxes in large-scale ice sheet and climate models.
Keywords
URL[Source Record]
Indexed By
SCI ; EI
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Others
Funding Project
National Science Foundation[2020547];Natural Environment Research Council[NE/T011920/1];
WOS Accession No
WOS:000801847800001
EI Accession Number
20222312201538
EI Keywords
Bathymetry ; Climate models ; Digital storage ; Earth system models ; Ice ; Nutrients ; Water
ESI Classification Code
Meteorology:443 ; Oceanographic Techniques:471.3 ; Data Storage, Equipment and Techniques:722.1 ; Mathematics:921 ; Mechanical Variables Measurements:943.2
ESI Research Field
GEOSCIENCES
Scopus EID
2-s2.0-85131313206
Data Source
Scopus
Citation statistics
Cited Times [WOS]:2
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/406218
DepartmentDepartment of Ocean Science and Engineering
Affiliation
1.School of Geosciences,University of Edinburgh,Edinburgh,United Kingdom
2.School of Geography and Sustainable Development,University of St Andrews,St Andrews,United Kingdom
3.Scripps Institution of Oceanography,University of California San Diego,La Jolla,United States
4.Moss Landing Marine Laboratories,San José State University,San Jose,United States
5.Jet Propulsion Laboratory,California Institute of Technology,Pasadena,United States
6.Department of Applied Ocean Physics and Engineering,Woods Hole Oceanographic Institution,Falmouth,United States
7.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,China
8.Department of Earth Sciences,Dartmouth College,Hanover,United States
9.Department of Earth System Science,University of California Irvine,Irvine,United States
Recommended Citation
GB/T 7714
Slater,D. A.,Carroll,D.,Oliver,H.,et al. Characteristic Depths, Fluxes, and Timescales for Greenland's Tidewater Glacier Fjords From Subglacial Discharge-Driven Upwelling During Summer[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(10).
APA
Slater,D. A..,Carroll,D..,Oliver,H..,Hopwood,M. J..,Straneo,F..,...&Morlighem,M..(2022).Characteristic Depths, Fluxes, and Timescales for Greenland's Tidewater Glacier Fjords From Subglacial Discharge-Driven Upwelling During Summer.GEOPHYSICAL RESEARCH LETTERS,49(10).
MLA
Slater,D. A.,et al."Characteristic Depths, Fluxes, and Timescales for Greenland's Tidewater Glacier Fjords From Subglacial Discharge-Driven Upwelling During Summer".GEOPHYSICAL RESEARCH LETTERS 49.10(2022).
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