Improved ice loss estimate of the northwestern Greenland Ice Sheet

Research output: Contribution to journalJournal articleResearchpeer-review

Standard

Improved ice loss estimate of the northwestern Greenland Ice Sheet. / Kjeldsen, Kristian Kjellerup; Khan, Shfaqat Abbas; Wahr, John; Korsgaard, Niels Jákup; Kjær, Kurt H.; Bjørk, Anders Anker; Hurkmans, Ruud; van den Broeke, Michiel R.; Bamber, Jonathan L; van Angelen, Jan H.

In: Journal of Geophysical Research: Solid Earth, Vol. 118, No. 2, 11.02.2013, p. 698–708.

Research output: Contribution to journalJournal articleResearchpeer-review

Harvard

Kjeldsen, KK, Khan, SA, Wahr, J, Korsgaard, NJ, Kjær, KH, Bjørk, AA, Hurkmans, R, van den Broeke, MR, Bamber, JL & van Angelen, JH 2013, 'Improved ice loss estimate of the northwestern Greenland Ice Sheet', Journal of Geophysical Research: Solid Earth, vol. 118, no. 2, pp. 698–708. https://doi.org/10.1029/2012JB009684

APA

Kjeldsen, K. K., Khan, S. A., Wahr, J., Korsgaard, N. J., Kjær, K. H., Bjørk, A. A., ... van Angelen, J. H. (2013). Improved ice loss estimate of the northwestern Greenland Ice Sheet. Journal of Geophysical Research: Solid Earth, 118(2), 698–708. https://doi.org/10.1029/2012JB009684

Vancouver

Kjeldsen KK, Khan SA, Wahr J, Korsgaard NJ, Kjær KH, Bjørk AA et al. Improved ice loss estimate of the northwestern Greenland Ice Sheet. Journal of Geophysical Research: Solid Earth. 2013 Feb 11;118(2):698–708. https://doi.org/10.1029/2012JB009684

Author

Kjeldsen, Kristian Kjellerup ; Khan, Shfaqat Abbas ; Wahr, John ; Korsgaard, Niels Jákup ; Kjær, Kurt H. ; Bjørk, Anders Anker ; Hurkmans, Ruud ; van den Broeke, Michiel R. ; Bamber, Jonathan L ; van Angelen, Jan H. / Improved ice loss estimate of the northwestern Greenland Ice Sheet. In: Journal of Geophysical Research: Solid Earth. 2013 ; Vol. 118, No. 2. pp. 698–708.

Bibtex

@article{1a2d097e47ba42be8c3cca52482288cf,
title = "Improved ice loss estimate of the northwestern Greenland Ice Sheet",
abstract = "2003-2009 using Ice, Cloud and land Elevation Satellite (ICESat) laser altimeter data [Zwally et al., 2011]. Elevation changes are often reported to be largest near the frontal portion of outlet glaciers. To improve the volume change estimate, we supplement the ICESat data with altimeter surveys from NASA’s Airborne Topographic Mapper (ATM) from 2002-2010 [Krabill et al., 2011] and NASAs Land, Vegetation and Ice Sensor (LVIS) from 2010 [Blair and Hofton, 2010]. The airborne data are mainly concentrated along the ice margin and thus have a significant impact on the estimate of the volume change. Our results show that adding ATM and LVIS data to the ICESat data increases the catchment-wide estimate of ice volume loss by 11 percent, mainly due to an improved volume loss estimate along the ice sheet margin. Furthermore, our results show a significant acceleration in mass loss at elevations above 1200 m. Both the improved mass loss estimate along the ice sheet margin and the acceleration at higher elevations have implications for predictions of the elastic adjustment of the lithosphere caused by present-day ice mass changes. Our study shows that the use of ICESat data alone to predict elastic uplift rates biases the predicted rates by several millimeters per year at GPS locations along the north-western coast.",
author = "Kjeldsen, {Kristian Kjellerup} and Khan, {Shfaqat Abbas} and John Wahr and Korsgaard, {Niels J{\'a}kup} and Kj{\ae}r, {Kurt H.} and Bj{\o}rk, {Anders Anker} and Ruud Hurkmans and {van den Broeke}, {Michiel R.} and Bamber, {Jonathan L} and {van Angelen}, {Jan H.}",
year = "2013",
month = "2",
day = "11",
doi = "10.1029/2012JB009684",
language = "English",
volume = "118",
pages = "698–708",
journal = "Journal of Geophysical Research",
issn = "0148-0227",
publisher = "American Geophysical Union",
number = "2",

}

RIS

TY - JOUR

T1 - Improved ice loss estimate of the northwestern Greenland Ice Sheet

AU - Kjeldsen, Kristian Kjellerup

AU - Khan, Shfaqat Abbas

AU - Wahr, John

AU - Korsgaard, Niels Jákup

AU - Kjær, Kurt H.

AU - Bjørk, Anders Anker

AU - Hurkmans, Ruud

AU - van den Broeke, Michiel R.

AU - Bamber, Jonathan L

AU - van Angelen, Jan H.

PY - 2013/2/11

Y1 - 2013/2/11

N2 - 2003-2009 using Ice, Cloud and land Elevation Satellite (ICESat) laser altimeter data [Zwally et al., 2011]. Elevation changes are often reported to be largest near the frontal portion of outlet glaciers. To improve the volume change estimate, we supplement the ICESat data with altimeter surveys from NASA’s Airborne Topographic Mapper (ATM) from 2002-2010 [Krabill et al., 2011] and NASAs Land, Vegetation and Ice Sensor (LVIS) from 2010 [Blair and Hofton, 2010]. The airborne data are mainly concentrated along the ice margin and thus have a significant impact on the estimate of the volume change. Our results show that adding ATM and LVIS data to the ICESat data increases the catchment-wide estimate of ice volume loss by 11 percent, mainly due to an improved volume loss estimate along the ice sheet margin. Furthermore, our results show a significant acceleration in mass loss at elevations above 1200 m. Both the improved mass loss estimate along the ice sheet margin and the acceleration at higher elevations have implications for predictions of the elastic adjustment of the lithosphere caused by present-day ice mass changes. Our study shows that the use of ICESat data alone to predict elastic uplift rates biases the predicted rates by several millimeters per year at GPS locations along the north-western coast.

AB - 2003-2009 using Ice, Cloud and land Elevation Satellite (ICESat) laser altimeter data [Zwally et al., 2011]. Elevation changes are often reported to be largest near the frontal portion of outlet glaciers. To improve the volume change estimate, we supplement the ICESat data with altimeter surveys from NASA’s Airborne Topographic Mapper (ATM) from 2002-2010 [Krabill et al., 2011] and NASAs Land, Vegetation and Ice Sensor (LVIS) from 2010 [Blair and Hofton, 2010]. The airborne data are mainly concentrated along the ice margin and thus have a significant impact on the estimate of the volume change. Our results show that adding ATM and LVIS data to the ICESat data increases the catchment-wide estimate of ice volume loss by 11 percent, mainly due to an improved volume loss estimate along the ice sheet margin. Furthermore, our results show a significant acceleration in mass loss at elevations above 1200 m. Both the improved mass loss estimate along the ice sheet margin and the acceleration at higher elevations have implications for predictions of the elastic adjustment of the lithosphere caused by present-day ice mass changes. Our study shows that the use of ICESat data alone to predict elastic uplift rates biases the predicted rates by several millimeters per year at GPS locations along the north-western coast.

U2 - 10.1029/2012JB009684

DO - 10.1029/2012JB009684

M3 - Journal article

VL - 118

SP - 698

EP - 708

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

SN - 0148-0227

IS - 2

ER -

ID: 42036827