Belmonte Rivas, M, Otosaka, I orcid.org/0000-0001-9740-3735, Stoffelen, A et al. (1 more author) (2018) A scatterometer record of sea ice extents and backscatter: 1992–2016. The Cryosphere, 12 (9). pp. 2941-2953. ISSN 1994-0416
Abstract
This paper presents the first long-term climate data record of sea ice extents and backscatter derived from intercalibrated satellite scatterometer missions (ERS, QuikSCAT and ASCAT) extending from 1992 to present date. This record provides a valuable independent account of the evolution of Arctic and Antarctic sea ice extents, one that is in excellent agreement with the passive microwave records during the fall and winter months but shows higher sensitivity to lower concentration and melting sea ice during the spring and summer months. The scatterometer record also provides a depiction of sea ice backscatter at C and Ku-band, allowing the separation of seasonal and perennial sea ice in the Arctic, and further differentiation between second year (SY) and older multiyear (MY) ice classes, revealing the emergence of SY ice as the dominant perennial ice type after the historical sea ice loss in 2007, and bearing new evidence on the loss of multiyear ice in the Arctic over the last 25 years. The relative good agreement between the backscatter-based sea ice (FY, SY and older MY) classes and the ice thickness record from Cryosat suggests its applicability as a reliable proxy in the historical reconstruction of sea ice thickness in the Arctic.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License. A copy of the license can be found at: https://creativecommons.org/licenses/by/4.0/ |
Keywords: | sea ice; scatterometry; microwave; remote sensing |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 Sep 2018 14:27 |
Last Modified: | 25 Jun 2023 21:30 |
Status: | Published |
Publisher: | Copernicus Publications |
Identification Number: | 10.5194/tc-12-2941-2018 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:135603 |