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Title: Observed runoff, jokulhlaups and suspended sediment load from the Greenland ice at Kangerlussuaq, West Greenland, 2007 and 2008

Abstract

This study fills the gap in hydrologic measurements of runoff exiting a part of the Greenland Ice Sheet (GrIS), the Kangerlussuaq drainage area, West Greenland. The observations are of value for obtaining knowledge about the terrestrial freshwater and sediment output from part of the GrIS and the strip of land between the GrIS and the ocean, in the context of varying ice sheet surface melt and influx entering the ocean. High-resolution stage, discharge and suspended sediment load show a decrease in runoff of {approx} 25% and in sediment load of {approx} 40% from 2007 to 2008 in response to a decrease in the summer accumulated number of positive degree days. During the 2007 and 2008 runoff season, joekulhlaups are observed at Kangerlussuaq, drained from an ice-dammed lake at the margin of the GrIS.

Authors:
 [1];  [2]
  1. Los Alamos National Laboratory
  2. UNIV OF COPENHAGEN
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
971303
Report Number(s):
LA-UR-09-06174; LA-UR-09-6174
Journal ID: ISSN 0022-1430; JOGLAO; TRN: US201004%%65
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article
Journal Name:
Journal of Glaciology
Additional Journal Information:
Journal Name: Journal of Glaciology; Journal ID: ISSN 0022-1430
Country of Publication:
United States
Language:
English
Subject:
58; DEGREE DAYS; DRAINAGE; GREENLAND; LAKES; RUNOFF; SEDIMENTS

Citation Formats

Mernild, Sebastian Haugard, and Hasholt, Bent. Observed runoff, jokulhlaups and suspended sediment load from the Greenland ice at Kangerlussuaq, West Greenland, 2007 and 2008. United States: N. p., 2009. Web. doi:10.3189/002214309790152465.
Mernild, Sebastian Haugard, & Hasholt, Bent. Observed runoff, jokulhlaups and suspended sediment load from the Greenland ice at Kangerlussuaq, West Greenland, 2007 and 2008. United States. https://doi.org/10.3189/002214309790152465
Mernild, Sebastian Haugard, and Hasholt, Bent. 2009. "Observed runoff, jokulhlaups and suspended sediment load from the Greenland ice at Kangerlussuaq, West Greenland, 2007 and 2008". United States. https://doi.org/10.3189/002214309790152465. https://www.osti.gov/servlets/purl/971303.
@article{osti_971303,
title = {Observed runoff, jokulhlaups and suspended sediment load from the Greenland ice at Kangerlussuaq, West Greenland, 2007 and 2008},
author = {Mernild, Sebastian Haugard and Hasholt, Bent},
abstractNote = {This study fills the gap in hydrologic measurements of runoff exiting a part of the Greenland Ice Sheet (GrIS), the Kangerlussuaq drainage area, West Greenland. The observations are of value for obtaining knowledge about the terrestrial freshwater and sediment output from part of the GrIS and the strip of land between the GrIS and the ocean, in the context of varying ice sheet surface melt and influx entering the ocean. High-resolution stage, discharge and suspended sediment load show a decrease in runoff of {approx} 25% and in sediment load of {approx} 40% from 2007 to 2008 in response to a decrease in the summer accumulated number of positive degree days. During the 2007 and 2008 runoff season, joekulhlaups are observed at Kangerlussuaq, drained from an ice-dammed lake at the margin of the GrIS.},
doi = {10.3189/002214309790152465},
url = {https://www.osti.gov/biblio/971303}, journal = {Journal of Glaciology},
issn = {0022-1430},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {1}
}