Marginal thinning in Northwest Greenland during 2002-2011

Publication: Research - peer-reviewConference abstract in journal – Annual report year: 2012

Standard

Marginal thinning in Northwest Greenland during 2002-2011. / Khan, Shfaqat Abbas; Kjær, K. H.; Wahr, J. M.; Bevis, M.; Korsgaard, N.; Bjørk, A. A.; Kjeldsen, K. K.; Timm, L. M.; Dam, T. v.

In: Geophysical Research Abstracts, Vol. 14, 2012, p. EGU2012-1852.

Publication: Research - peer-reviewConference abstract in journal – Annual report year: 2012

Harvard

Khan, SA, Kjær, KH, Wahr, JM, Bevis, M, Korsgaard, N, Bjørk, AA, Kjeldsen, KK, Timm, LM & Dam, TV 2012, 'Marginal thinning in Northwest Greenland during 2002-2011' Geophysical Research Abstracts, vol 14, pp. EGU2012-1852.

APA

Khan, S. A., Kjær, K. H., Wahr, J. M., Bevis, M., Korsgaard, N., Bjørk, A. A., Kjeldsen, K. K., Timm, L. M., & Dam, T. V. (2012). Marginal thinning in Northwest Greenland during 2002-2011. Geophysical Research Abstracts, 14, EGU2012-1852.

CBE

Khan SA, Kjær KH, Wahr JM, Bevis M, Korsgaard N, Bjørk AA, Kjeldsen KK, Timm LM, Dam TV. 2012. Marginal thinning in Northwest Greenland during 2002-2011. Geophysical Research Abstracts. 14:EGU2012-1852.

MLA

Vancouver

Khan SA, Kjær KH, Wahr JM, Bevis M, Korsgaard N, Bjørk AA et al. Marginal thinning in Northwest Greenland during 2002-2011. Geophysical Research Abstracts. 2012;14:EGU2012-1852.

Author

Khan, Shfaqat Abbas; Kjær, K. H.; Wahr, J. M.; Bevis, M.; Korsgaard, N.; Bjørk, A. A.; Kjeldsen, K. K.; Timm, L. M.; Dam, T. v. / Marginal thinning in Northwest Greenland during 2002-2011.

In: Geophysical Research Abstracts, Vol. 14, 2012, p. EGU2012-1852.

Publication: Research - peer-reviewConference abstract in journal – Annual report year: 2012

Bibtex

@article{ad020591711246fe98558ea360ec6ab8,
title = "Marginal thinning in Northwest Greenland during 2002-2011",
publisher = "Copernicus GmbH",
author = "Khan, {Shfaqat Abbas} and Kjær, {K. H.} and Wahr, {J. M.} and M. Bevis and N. Korsgaard and Bjørk, {A. A.} and Kjeldsen, {K. K.} and Timm, {L. M.} and Dam, {T. v.}",
year = "2012",
volume = "14",
pages = "EGU2012--1852",
journal = "Geophysical Research Abstracts",
issn = "1607-7962",

}

RIS

TY - ABST

T1 - Marginal thinning in Northwest Greenland during 2002-2011

A1 - Khan,Shfaqat Abbas

A1 - Kjær,K. H.

A1 - Wahr,J. M.

A1 - Bevis,M.

A1 - Korsgaard,N.

A1 - Bjørk,A. A.

A1 - Kjeldsen,K. K.

A1 - Timm,L. M.

A1 - Dam,T. v.

AU - Khan,Shfaqat Abbas

AU - Kjær,K. H.

AU - Wahr,J. M.

AU - Bevis,M.

AU - Korsgaard,N.

AU - Bjørk,A. A.

AU - Kjeldsen,K. K.

AU - Timm,L. M.

AU - Dam,T. v.

PB - Copernicus GmbH

PY - 2012

Y1 - 2012

N2 - Many glaciers along the southeast and northwest coast of Greenland have accelerated, increasing the Greenland ice sheet's (GrIS) contribution to global sea-level rise. Here, we map elevation changes in northwest Greenland during 2003-2009 using high-resolution Ice, Cloud and land Elevation Satellite (ICESat) laser altimeter data (Zwally, 2010) supplemented with altimeter surveys from NASA's Airborne Topographic Mapper (ATM) during 2002-2011 (Krabill, 2011). We use the measurements of elevation change to estimate catchment-wide ice volume loss (convert is to mass loss) and compare with independent measurements from GPS and the Gravity Recovery and Climate Experiment (GRACE) satellite gravity mission, launched in March, 2002. The GRACE results provide a direct measure of mass loss averaged over the entire northwest sector, while the GPS data are used to monitor crustal uplift caused by ice mass loss close to the sites. GPS data from a long term site at Thule Airbase show accelerated uplift starting in 2005 and a minor deceleration in 2009-2010. The deceleration is more dominant at GPS stations deployed in 2007 in northwest Greenland as part of the Greenland GPS Network (GNET). Independently, all three methods suggest increased ice loss in northwest Greenland starting in 2005 and a slowdown in 2009-2010.

AB - Many glaciers along the southeast and northwest coast of Greenland have accelerated, increasing the Greenland ice sheet's (GrIS) contribution to global sea-level rise. Here, we map elevation changes in northwest Greenland during 2003-2009 using high-resolution Ice, Cloud and land Elevation Satellite (ICESat) laser altimeter data (Zwally, 2010) supplemented with altimeter surveys from NASA's Airborne Topographic Mapper (ATM) during 2002-2011 (Krabill, 2011). We use the measurements of elevation change to estimate catchment-wide ice volume loss (convert is to mass loss) and compare with independent measurements from GPS and the Gravity Recovery and Climate Experiment (GRACE) satellite gravity mission, launched in March, 2002. The GRACE results provide a direct measure of mass loss averaged over the entire northwest sector, while the GPS data are used to monitor crustal uplift caused by ice mass loss close to the sites. GPS data from a long term site at Thule Airbase show accelerated uplift starting in 2005 and a minor deceleration in 2009-2010. The deceleration is more dominant at GPS stations deployed in 2007 in northwest Greenland as part of the Greenland GPS Network (GNET). Independently, all three methods suggest increased ice loss in northwest Greenland starting in 2005 and a slowdown in 2009-2010.

JO - Geophysical Research Abstracts

JF - Geophysical Research Abstracts

SN - 1607-7962

VL - 14

SP - EGU2012-1852

ER -