A scatterometer record of sea ice extents and backscatter: 1992–2016
<p>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 the present date (Verhoef et al., 2018). This record provides a valuable independ...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Copernicus Publications
2018-09-01
|
Series: | The Cryosphere |
Online Access: | https://www.the-cryosphere.net/12/2941/2018/tc-12-2941-2018.pdf |
id |
doaj-066b1374848447c891a6da0656f20fbc |
---|---|
record_format |
Article |
spelling |
doaj-066b1374848447c891a6da0656f20fbc2020-11-24T20:52:22ZengCopernicus PublicationsThe Cryosphere1994-04161994-04242018-09-01122941295310.5194/tc-12-2941-2018A scatterometer record of sea ice extents and backscatter: 1992–2016M. Belmonte Rivas0M. Belmonte Rivas1I. Otosaka2I. Otosaka3A. Stoffelen4A. Verhoef5Royal Netherlands Meteorology Institute (KNMI), de Bilt, 3731 GA, The NetherlandsInstituto de Ciencias del Mar (ICM), Consejo Superior de Investigaciones Cientificas (CSIC), 08003, Barcelona, SpainRoyal Netherlands Meteorology Institute (KNMI), de Bilt, 3731 GA, The NetherlandsCenter for Polar Observation and Modelling (CPOM), University of Leeds, Leeds, LS2 9JT, UKRoyal Netherlands Meteorology Institute (KNMI), de Bilt, 3731 GA, The NetherlandsRoyal Netherlands Meteorology Institute (KNMI), de Bilt, 3731 GA, The Netherlands<p>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 the present date (Verhoef et al., 2018). 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-bands, 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.</p>https://www.the-cryosphere.net/12/2941/2018/tc-12-2941-2018.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. Belmonte Rivas M. Belmonte Rivas I. Otosaka I. Otosaka A. Stoffelen A. Verhoef |
spellingShingle |
M. Belmonte Rivas M. Belmonte Rivas I. Otosaka I. Otosaka A. Stoffelen A. Verhoef A scatterometer record of sea ice extents and backscatter: 1992–2016 The Cryosphere |
author_facet |
M. Belmonte Rivas M. Belmonte Rivas I. Otosaka I. Otosaka A. Stoffelen A. Verhoef |
author_sort |
M. Belmonte Rivas |
title |
A scatterometer record of sea ice extents and backscatter: 1992–2016 |
title_short |
A scatterometer record of sea ice extents and backscatter: 1992–2016 |
title_full |
A scatterometer record of sea ice extents and backscatter: 1992–2016 |
title_fullStr |
A scatterometer record of sea ice extents and backscatter: 1992–2016 |
title_full_unstemmed |
A scatterometer record of sea ice extents and backscatter: 1992–2016 |
title_sort |
scatterometer record of sea ice extents and backscatter: 1992–2016 |
publisher |
Copernicus Publications |
series |
The Cryosphere |
issn |
1994-0416 1994-0424 |
publishDate |
2018-09-01 |
description |
<p>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 the present date (Verhoef et
al., 2018). 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-bands, 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.</p> |
url |
https://www.the-cryosphere.net/12/2941/2018/tc-12-2941-2018.pdf |
work_keys_str_mv |
AT mbelmonterivas ascatterometerrecordofseaiceextentsandbackscatter19922016 AT mbelmonterivas ascatterometerrecordofseaiceextentsandbackscatter19922016 AT iotosaka ascatterometerrecordofseaiceextentsandbackscatter19922016 AT iotosaka ascatterometerrecordofseaiceextentsandbackscatter19922016 AT astoffelen ascatterometerrecordofseaiceextentsandbackscatter19922016 AT averhoef ascatterometerrecordofseaiceextentsandbackscatter19922016 AT mbelmonterivas scatterometerrecordofseaiceextentsandbackscatter19922016 AT mbelmonterivas scatterometerrecordofseaiceextentsandbackscatter19922016 AT iotosaka scatterometerrecordofseaiceextentsandbackscatter19922016 AT iotosaka scatterometerrecordofseaiceextentsandbackscatter19922016 AT astoffelen scatterometerrecordofseaiceextentsandbackscatter19922016 AT averhoef scatterometerrecordofseaiceextentsandbackscatter19922016 |
_version_ |
1716799826973163520 |