Snow Grain Size Retrieval over the Polar Ice Sheets with the Ice, Cloud, and land Elevation Satellite (ICESat) Observations
Snow grain size is an important parameter for cryosphere studies. As a proof of concept, this paper presents an approach to retrieve this parameter over Greenland, East and West Antarctica ice sheets from surface reflectances observed with the Geoscience Laser Altimeter System (GLAS) onboard the Ice...
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ftpubmed:oai:pubmedcentral.nih.gov:5889940 2023-05-15T13:46:44+02:00 Snow Grain Size Retrieval over the Polar Ice Sheets with the Ice, Cloud, and land Elevation Satellite (ICESat) Observations Yang, Yuekui Marshak, Alexander Han, Mei Palm, Stephen P. Harding, David J. 2016-04-06 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5889940/ http://www.ncbi.nlm.nih.gov/pubmed/29636591 https://doi.org/10.1016/j.jqsrt.2016.03.033 en eng http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5889940/ http://www.ncbi.nlm.nih.gov/pubmed/29636591 http://dx.doi.org/10.1016/j.jqsrt.2016.03.033 Article Text 2016 ftpubmed https://doi.org/10.1016/j.jqsrt.2016.03.033 2018-04-22T01:19:18Z Snow grain size is an important parameter for cryosphere studies. As a proof of concept, this paper presents an approach to retrieve this parameter over Greenland, East and West Antarctica ice sheets from surface reflectances observed with the Geoscience Laser Altimeter System (GLAS) onboard the Ice, Cloud, and land Elevation Satellite (ICESat) at 1064 nm. Spaceborne lidar observations overcome many of the disadvantages in passive remote sensing, including difficulties in cloud screening and low sun angle limitations; hence tend to provide more accurate and stable retrievals. Results from the GLAS L2A campaign, which began on 25 September and lasted until 19 November, 2003, show that the mode of the grain size distribution over Greenland is the largest (~300 μm) among the three, West Antarctica is the second (~220 μm) and East Antarctica is the smallest (~190 μm). Snow grain sizes are larger over the coastal regions compared to inland the ice sheets. These results are consistent with previous studies. Applying the broadband snow surface albedo parameterization scheme developed by Garder and Sharp (2010) to the retrieved snow grain size, ice sheet surface albedo is also derived. In the future, more accurate retrievals can be achieved with multiple wavelengths lidar observations. Text Antarc* Antarctica East Antarctica Greenland Ice Sheet West Antarctica PubMed Central (PMC) East Antarctica Greenland West Antarctica Journal of Quantitative Spectroscopy and Radiative Transfer 188 159 164 |
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Article Yang, Yuekui Marshak, Alexander Han, Mei Palm, Stephen P. Harding, David J. Snow Grain Size Retrieval over the Polar Ice Sheets with the Ice, Cloud, and land Elevation Satellite (ICESat) Observations |
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description |
Snow grain size is an important parameter for cryosphere studies. As a proof of concept, this paper presents an approach to retrieve this parameter over Greenland, East and West Antarctica ice sheets from surface reflectances observed with the Geoscience Laser Altimeter System (GLAS) onboard the Ice, Cloud, and land Elevation Satellite (ICESat) at 1064 nm. Spaceborne lidar observations overcome many of the disadvantages in passive remote sensing, including difficulties in cloud screening and low sun angle limitations; hence tend to provide more accurate and stable retrievals. Results from the GLAS L2A campaign, which began on 25 September and lasted until 19 November, 2003, show that the mode of the grain size distribution over Greenland is the largest (~300 μm) among the three, West Antarctica is the second (~220 μm) and East Antarctica is the smallest (~190 μm). Snow grain sizes are larger over the coastal regions compared to inland the ice sheets. These results are consistent with previous studies. Applying the broadband snow surface albedo parameterization scheme developed by Garder and Sharp (2010) to the retrieved snow grain size, ice sheet surface albedo is also derived. In the future, more accurate retrievals can be achieved with multiple wavelengths lidar observations. |
format |
Text |
author |
Yang, Yuekui Marshak, Alexander Han, Mei Palm, Stephen P. Harding, David J. |
author_facet |
Yang, Yuekui Marshak, Alexander Han, Mei Palm, Stephen P. Harding, David J. |
author_sort |
Yang, Yuekui |
title |
Snow Grain Size Retrieval over the Polar Ice Sheets with the Ice, Cloud, and land Elevation Satellite (ICESat) Observations |
title_short |
Snow Grain Size Retrieval over the Polar Ice Sheets with the Ice, Cloud, and land Elevation Satellite (ICESat) Observations |
title_full |
Snow Grain Size Retrieval over the Polar Ice Sheets with the Ice, Cloud, and land Elevation Satellite (ICESat) Observations |
title_fullStr |
Snow Grain Size Retrieval over the Polar Ice Sheets with the Ice, Cloud, and land Elevation Satellite (ICESat) Observations |
title_full_unstemmed |
Snow Grain Size Retrieval over the Polar Ice Sheets with the Ice, Cloud, and land Elevation Satellite (ICESat) Observations |
title_sort |
snow grain size retrieval over the polar ice sheets with the ice, cloud, and land elevation satellite (icesat) observations |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5889940/ http://www.ncbi.nlm.nih.gov/pubmed/29636591 https://doi.org/10.1016/j.jqsrt.2016.03.033 |
geographic |
East Antarctica Greenland West Antarctica |
geographic_facet |
East Antarctica Greenland West Antarctica |
genre |
Antarc* Antarctica East Antarctica Greenland Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica Greenland Ice Sheet West Antarctica |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5889940/ http://www.ncbi.nlm.nih.gov/pubmed/29636591 http://dx.doi.org/10.1016/j.jqsrt.2016.03.033 |
op_doi |
https://doi.org/10.1016/j.jqsrt.2016.03.033 |
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Journal of Quantitative Spectroscopy and Radiative Transfer |
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188 |
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159 |
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164 |
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1766245158172491776 |