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Observations of Arctic Sea Ice Leads and Open Water During the Microbiological-Ocean-Cloud Coupling in the High Arctic Campaign
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2020 (English)In: IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020, p. 3023-3026Conference paper, Published paper (Refereed)
Abstract [en]

The Microbiological-Ocean-Cloud Coupling in the High Arctic (MOCCHA) campaign was conducted during August-September 2018 to examine the coupling between the changing High Arctic surface and atmospheric composition, including the production of sea spray aerosols (SSA) from sea ice leads. Sentinel-1 satellite SAR data are used for observations of sea ice leads and open water where SSA may originate due to wind forcing. Results from selected Sentinel-1 SAR scenes show that sea ice leads and open water areas can be identified with co-polarized backscatter at larger incidence angles while water misclassification occurs at smaller incidence due to stronger surface scattering. In contrast, the cross-polarized backscatter remains low at low and high incidence angles. Melt on sea ice during the MOCCHA summertime can confound backscatter signatures that misidentify open sea water. Future analyses can be improved using SARs in synergy with other satellite sensors.

Place, publisher, year, edition, pages
2020. p. 3023-3026
National Category
Earth and Related Environmental Sciences
Research subject
SWEDARCTIC 2018, Arctic Ocean 2018
Identifiers
URN: urn:nbn:se:polar:diva-8674DOI: 10.1109/IGARSS39084.2020.9324103OAI: oai:DiVA.org:polar-8674DiVA, id: diva2:1548251
Conference
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium
Available from: 2021-04-29 Created: 2021-04-29 Last updated: 2021-04-29Bibliographically approved

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