STUDY ON ARCTIC MELT POND FRACTION RETRIEVAL ALGORITHM USING MODIS DATA
During spring and summer, melt ponds appear on the sea ice surface in the Arctic and play an important role in sea ice-albedo feedback effect. The melt pond fraction (MPF) can be retrieved using multi-band linear equations, but the calculation is complicated by the ill-conditioned reflectance matrix...
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ftdoajarticles:oai:doaj.org/article:1967a93ebc4444f497ea696526951feb 2023-05-15T13:11:24+02:00 STUDY ON ARCTIC MELT POND FRACTION RETRIEVAL ALGORITHM USING MODIS DATA J. Su P. Yu Y. Qin G. Zhang M. Wang 2020-08-01T00:00:00Z https://doi.org/10.5194/isprs-archives-XLIII-B3-2020-893-2020 https://doaj.org/article/1967a93ebc4444f497ea696526951feb EN eng Copernicus Publications https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLIII-B3-2020/893/2020/isprs-archives-XLIII-B3-2020-893-2020.pdf https://doaj.org/toc/1682-1750 https://doaj.org/toc/2194-9034 doi:10.5194/isprs-archives-XLIII-B3-2020-893-2020 1682-1750 2194-9034 https://doaj.org/article/1967a93ebc4444f497ea696526951feb The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLIII-B3-2020, Pp 893-898 (2020) Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 article 2020 ftdoajarticles https://doi.org/10.5194/isprs-archives-XLIII-B3-2020-893-2020 2022-12-31T00:59:29Z During spring and summer, melt ponds appear on the sea ice surface in the Arctic and play an important role in sea ice-albedo feedback effect. The melt pond fraction (MPF) can be retrieved using multi-band linear equations, but the calculation is complicated by the ill-conditioned reflectance matrix. In this paper, we calculated the condition numbers which represent the degree of the ill-conditioned reflectance matrix in the results of the MPF from a MODIS-based unmixing algorithm. The condition number is introduced here as a criterion for the sensitivity of the solution in the system to the error in the input value. By combining 3 bands among 5 visible and near-infrared bands of MODIS data, the results show that the three-band combination with the lowest sensitivity to the error of input is B245. To improve the algorithm, we introduce pre-processing to remove open water from the four surface types and then remove one reflectance equation from the original set. The best two-band combination algorithm is B15. Compared with the discrimination results from Landsat5-TM, the RMS is 0.14. This algorithm is applied in pan-Arctic scale, the MPF results are larger than that from University of Hamburg, especially in the Pacific sector. Article in Journal/Newspaper albedo Arctic Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Pacific The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B3-2020 893 898 |
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English |
topic |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 |
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Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 J. Su P. Yu Y. Qin G. Zhang M. Wang STUDY ON ARCTIC MELT POND FRACTION RETRIEVAL ALGORITHM USING MODIS DATA |
topic_facet |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 |
description |
During spring and summer, melt ponds appear on the sea ice surface in the Arctic and play an important role in sea ice-albedo feedback effect. The melt pond fraction (MPF) can be retrieved using multi-band linear equations, but the calculation is complicated by the ill-conditioned reflectance matrix. In this paper, we calculated the condition numbers which represent the degree of the ill-conditioned reflectance matrix in the results of the MPF from a MODIS-based unmixing algorithm. The condition number is introduced here as a criterion for the sensitivity of the solution in the system to the error in the input value. By combining 3 bands among 5 visible and near-infrared bands of MODIS data, the results show that the three-band combination with the lowest sensitivity to the error of input is B245. To improve the algorithm, we introduce pre-processing to remove open water from the four surface types and then remove one reflectance equation from the original set. The best two-band combination algorithm is B15. Compared with the discrimination results from Landsat5-TM, the RMS is 0.14. This algorithm is applied in pan-Arctic scale, the MPF results are larger than that from University of Hamburg, especially in the Pacific sector. |
format |
Article in Journal/Newspaper |
author |
J. Su P. Yu Y. Qin G. Zhang M. Wang |
author_facet |
J. Su P. Yu Y. Qin G. Zhang M. Wang |
author_sort |
J. Su |
title |
STUDY ON ARCTIC MELT POND FRACTION RETRIEVAL ALGORITHM USING MODIS DATA |
title_short |
STUDY ON ARCTIC MELT POND FRACTION RETRIEVAL ALGORITHM USING MODIS DATA |
title_full |
STUDY ON ARCTIC MELT POND FRACTION RETRIEVAL ALGORITHM USING MODIS DATA |
title_fullStr |
STUDY ON ARCTIC MELT POND FRACTION RETRIEVAL ALGORITHM USING MODIS DATA |
title_full_unstemmed |
STUDY ON ARCTIC MELT POND FRACTION RETRIEVAL ALGORITHM USING MODIS DATA |
title_sort |
study on arctic melt pond fraction retrieval algorithm using modis data |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/isprs-archives-XLIII-B3-2020-893-2020 https://doaj.org/article/1967a93ebc4444f497ea696526951feb |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
albedo Arctic Sea ice |
genre_facet |
albedo Arctic Sea ice |
op_source |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLIII-B3-2020, Pp 893-898 (2020) |
op_relation |
https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLIII-B3-2020/893/2020/isprs-archives-XLIII-B3-2020-893-2020.pdf https://doaj.org/toc/1682-1750 https://doaj.org/toc/2194-9034 doi:10.5194/isprs-archives-XLIII-B3-2020-893-2020 1682-1750 2194-9034 https://doaj.org/article/1967a93ebc4444f497ea696526951feb |
op_doi |
https://doi.org/10.5194/isprs-archives-XLIII-B3-2020-893-2020 |
container_title |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
container_volume |
XLIII-B3-2020 |
container_start_page |
893 |
op_container_end_page |
898 |
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1766247233330610176 |