Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006
We present the results from two independent approaches for monitoring ice-sheet melt area over western Greenland. The microwave-based cross-polarization gradient ratio (XPGR) approach (Abdalati, W. and Steffen, K., 1995, Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E dat...
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ftunivnebraskali:oai:digitalcommons.unl.edu:usdoepub-1362 2023-11-12T04:17:45+01:00 Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006 McCabe, Matthew F. Chylek, Petr Dubey, Manvendra K. 2011-06-01T07:00:00Z application/pdf https://digitalcommons.unl.edu/usdoepub/363 https://digitalcommons.unl.edu/context/usdoepub/article/1362/viewcontent/McCabe_RSL_2011_Detecting_ice_sheet_melt.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/usdoepub/363 https://digitalcommons.unl.edu/context/usdoepub/article/1362/viewcontent/McCabe_RSL_2011_Detecting_ice_sheet_melt.pdf US Department of Energy Publications text 2011 ftunivnebraskali 2023-10-30T09:52:51Z We present the results from two independent approaches for monitoring ice-sheet melt area over western Greenland. The microwave-based cross-polarization gradient ratio (XPGR) approach (Abdalati, W. and Steffen, K., 1995, Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006. Geophysical Research Letter, 22, pp. 787–790) is compared with a newly developed technique that exploits reflectance characteristics of snow/ice using near-infrared and visible wavelengths, to assess the extent of ice-sheet melt area over the west coast of Greenland. Data from the moderate resolution imaging spectroradiometer (MODIS) sensor onboard the National Aeronautics and Space Administration’s (NASA) Earth Observing Satellite (EOS) Terra are analyzed through the years 2002–2006 to monitor melt area extent between May and September. Concurrently, the XPGR ratio is derived from advanced microwave scanning radiometer (AMSR-E) data to develop a comparative measure of melt area over the same period of investigation. Although the techniques represent fundamentally different physical approaches, good agreement is observed between these distinct melt area products. The enhanced spatial resolution that is achieved from the MODIS sensor offers additional insight into the melt response over the course of the summer melt period and highlights the advantage of synthesizing diverse sensors and retrieval algorithms for Earth observation. Text Greenland Ice Sheet University of Nebraska-Lincoln: DigitalCommons@UNL Greenland |
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University of Nebraska-Lincoln: DigitalCommons@UNL |
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We present the results from two independent approaches for monitoring ice-sheet melt area over western Greenland. The microwave-based cross-polarization gradient ratio (XPGR) approach (Abdalati, W. and Steffen, K., 1995, Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006. Geophysical Research Letter, 22, pp. 787–790) is compared with a newly developed technique that exploits reflectance characteristics of snow/ice using near-infrared and visible wavelengths, to assess the extent of ice-sheet melt area over the west coast of Greenland. Data from the moderate resolution imaging spectroradiometer (MODIS) sensor onboard the National Aeronautics and Space Administration’s (NASA) Earth Observing Satellite (EOS) Terra are analyzed through the years 2002–2006 to monitor melt area extent between May and September. Concurrently, the XPGR ratio is derived from advanced microwave scanning radiometer (AMSR-E) data to develop a comparative measure of melt area over the same period of investigation. Although the techniques represent fundamentally different physical approaches, good agreement is observed between these distinct melt area products. The enhanced spatial resolution that is achieved from the MODIS sensor offers additional insight into the melt response over the course of the summer melt period and highlights the advantage of synthesizing diverse sensors and retrieval algorithms for Earth observation. |
format |
Text |
author |
McCabe, Matthew F. Chylek, Petr Dubey, Manvendra K. |
spellingShingle |
McCabe, Matthew F. Chylek, Petr Dubey, Manvendra K. Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006 |
author_facet |
McCabe, Matthew F. Chylek, Petr Dubey, Manvendra K. |
author_sort |
McCabe, Matthew F. |
title |
Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006 |
title_short |
Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006 |
title_full |
Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006 |
title_fullStr |
Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006 |
title_full_unstemmed |
Detecting ice-sheet melt area over western Greenland using MODIS and AMSR-E data for the summer periods of 2002–2006 |
title_sort |
detecting ice-sheet melt area over western greenland using modis and amsr-e data for the summer periods of 2002–2006 |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2011 |
url |
https://digitalcommons.unl.edu/usdoepub/363 https://digitalcommons.unl.edu/context/usdoepub/article/1362/viewcontent/McCabe_RSL_2011_Detecting_ice_sheet_melt.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
US Department of Energy Publications |
op_relation |
https://digitalcommons.unl.edu/usdoepub/363 https://digitalcommons.unl.edu/context/usdoepub/article/1362/viewcontent/McCabe_RSL_2011_Detecting_ice_sheet_melt.pdf |
_version_ |
1782334539207540736 |