Potential of melt pond fraction retrieval from high spatial resolution AMSR-E/2 channels

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dc.contributor.authorTanaka, Yasuhiro
dc.contributor.authorScharien, Randall K.
dc.date.accessioned2023-02-07T19:33:16Z
dc.date.available2023-02-07T19:33:16Z
dc.date.copyright2022en_US
dc.date.issued2022
dc.description.abstractEstimation of melt pond fraction (MPF) using the Advanced Microwave Scanning Radiometer for the Earth Observing System (EOS)/2 (AMSR-E/2) brightness temperature (TB) data is required for enhancing understanding of the role of melt ponds in the Arctic and in the earth’s climate system. An original MPF retrieval is based on gradient ratio (GR), defined as the normalized difference between the 6.9 GHz horizontal (H) channel and the 89.0 GHz vertical channel GR(6/89) of AMSR-E. However, using the coarsest spatial resolution 6.9 GHz channel includes potential land contamination in TB in regions of narrow waterways such as the Canadian Arctic Archipelago (CAA). This letter aims to provide a higher resolution MPF product, derived by using 10.7, 18.7, 23.8, 36.5, and 89.0 GHz TBs at H-polarization instead of the 6.9 GHz TB H-polarization in the GR calculation. For GR(10/89)- and GR(18/89)-based MPF retrievals, the difference standard deviations were ~3.8%. This is lower than the ~14.3% standard deviation of the GR(23/89)-, GR(36/89)-, and PR(89)-based MPF retrievals. Our results suggest that the GR(10/89) and (18/89) MPF retrievals are available at a product quality similar to the original GR(6/89)-based MPF retrieval. We recommend that the GR(18/89) MPF retrieval adopted is used in nearshore environments such as in the CAA.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.identifier.citationTanaka, Y. & Scharien, R. K. (2022). “Potential of melt pond fraction retrieval from high spatial resolution AMSR-E/2 channels.” IEEE Geoscience and Remote Sensing Letters, 19, 1-5. https://doi.org/10.1109/LGRS.2020.3038888en_US
dc.identifier.urihttps://doi.org/10.1109/LGRS.2020.3038888
dc.identifier.urihttp://hdl.handle.net/1828/14756
dc.language.isoenen_US
dc.publisherIEEE Geoscience and Remote Sensing Lettersen_US
dc.subjectAdvanced microwave scanning radiometer for the Earth Observing System (EOS) (AMSR-E)
dc.subjectAMSR2
dc.subjectCanadian Arctic Archipelago (CAA)
dc.subjectmelt pond fraction (MPF)
dc.subjectmelt season
dc.subjectpassive microwave
dc.subjectsea ice
dc.subjectStandards
dc.subjectSpatial resolution
dc.subjectMicrowave radiometry
dc.subjectMicrowave integrated circuits
dc.subjectMicrowave FET integrated circuits
dc.subjectSea ice
dc.subjectArctic
dc.subject.departmentDepartment of Geography
dc.titlePotential of melt pond fraction retrieval from high spatial resolution AMSR-E/2 channelsen_US
dc.typeArticleen_US

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