Arctic freeboard and snow depth from near-coincident CryoSat-2 and ICESat-2 (CRYO2ICE) observations: A first examination of winter sea ice during 2020-2022 (accepted)
In the summer of 2020, ESA changed the orbit of CryoSat-2 to align periodically with NASA’s ICESat-2 mission, a campaign known as CRYO2ICE, which allows for near-coincident CryoSat-2 and ICESat-2 observations in space and time over the Arctic. This study investigates the CRYO2ICE radar and laser fre...
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2023
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Online Access: | http://dx.doi.org/10.22541/essoar.168614619.96485405/v1 |
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crwinnower:10.22541/essoar.168614619.96485405/v1 2024-06-02T08:01:14+00:00 Arctic freeboard and snow depth from near-coincident CryoSat-2 and ICESat-2 (CRYO2ICE) observations: A first examination of winter sea ice during 2020-2022 (accepted) Hansen, Renée Mie Fredensborg Skourup, Henriette Rinne, Eero Høyland, Knut Vilhelm Landy, Jack Christopher Merkouriadi, Ioanna Forsberg, Rene 2023 http://dx.doi.org/10.22541/essoar.168614619.96485405/v1 unknown Authorea, Inc. posted-content 2023 crwinnower https://doi.org/10.22541/essoar.168614619.96485405/v1 2024-05-07T14:19:22Z In the summer of 2020, ESA changed the orbit of CryoSat-2 to align periodically with NASA’s ICESat-2 mission, a campaign known as CRYO2ICE, which allows for near-coincident CryoSat-2 and ICESat-2 observations in space and time over the Arctic. This study investigates the CRYO2ICE radar and laser freeboards acquired by CryoSat-2 and ICESat-2, respectively, during the full winter season of 2020–2021, and derives snow depths from their differences. As expected, the ICESat-2 signal is backscattered at a surface above the elevation of the CryoSat-2 signal. CRYO2ICE snow depths are thinner than the daily model- or passive-microwave-based snow depth composites used for comparison, where differences are most pronounced in the Atlantic and Pacific Arctic. These observations show the exciting potential for along-track dual-frequency observations of snow depth from the future Copernicus mission CRISTAL; but also highlight uncertainties in radar penetration and the length scales of snow topography that still require further research. Other/Unknown Material Arctic Pacific Arctic Sea ice The Winnower Arctic Pacific |
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Open Polar |
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The Winnower |
op_collection_id |
crwinnower |
language |
unknown |
description |
In the summer of 2020, ESA changed the orbit of CryoSat-2 to align periodically with NASA’s ICESat-2 mission, a campaign known as CRYO2ICE, which allows for near-coincident CryoSat-2 and ICESat-2 observations in space and time over the Arctic. This study investigates the CRYO2ICE radar and laser freeboards acquired by CryoSat-2 and ICESat-2, respectively, during the full winter season of 2020–2021, and derives snow depths from their differences. As expected, the ICESat-2 signal is backscattered at a surface above the elevation of the CryoSat-2 signal. CRYO2ICE snow depths are thinner than the daily model- or passive-microwave-based snow depth composites used for comparison, where differences are most pronounced in the Atlantic and Pacific Arctic. These observations show the exciting potential for along-track dual-frequency observations of snow depth from the future Copernicus mission CRISTAL; but also highlight uncertainties in radar penetration and the length scales of snow topography that still require further research. |
format |
Other/Unknown Material |
author |
Hansen, Renée Mie Fredensborg Skourup, Henriette Rinne, Eero Høyland, Knut Vilhelm Landy, Jack Christopher Merkouriadi, Ioanna Forsberg, Rene |
spellingShingle |
Hansen, Renée Mie Fredensborg Skourup, Henriette Rinne, Eero Høyland, Knut Vilhelm Landy, Jack Christopher Merkouriadi, Ioanna Forsberg, Rene Arctic freeboard and snow depth from near-coincident CryoSat-2 and ICESat-2 (CRYO2ICE) observations: A first examination of winter sea ice during 2020-2022 (accepted) |
author_facet |
Hansen, Renée Mie Fredensborg Skourup, Henriette Rinne, Eero Høyland, Knut Vilhelm Landy, Jack Christopher Merkouriadi, Ioanna Forsberg, Rene |
author_sort |
Hansen, Renée Mie Fredensborg |
title |
Arctic freeboard and snow depth from near-coincident CryoSat-2 and ICESat-2 (CRYO2ICE) observations: A first examination of winter sea ice during 2020-2022 (accepted) |
title_short |
Arctic freeboard and snow depth from near-coincident CryoSat-2 and ICESat-2 (CRYO2ICE) observations: A first examination of winter sea ice during 2020-2022 (accepted) |
title_full |
Arctic freeboard and snow depth from near-coincident CryoSat-2 and ICESat-2 (CRYO2ICE) observations: A first examination of winter sea ice during 2020-2022 (accepted) |
title_fullStr |
Arctic freeboard and snow depth from near-coincident CryoSat-2 and ICESat-2 (CRYO2ICE) observations: A first examination of winter sea ice during 2020-2022 (accepted) |
title_full_unstemmed |
Arctic freeboard and snow depth from near-coincident CryoSat-2 and ICESat-2 (CRYO2ICE) observations: A first examination of winter sea ice during 2020-2022 (accepted) |
title_sort |
arctic freeboard and snow depth from near-coincident cryosat-2 and icesat-2 (cryo2ice) observations: a first examination of winter sea ice during 2020-2022 (accepted) |
publisher |
Authorea, Inc. |
publishDate |
2023 |
url |
http://dx.doi.org/10.22541/essoar.168614619.96485405/v1 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Pacific Arctic Sea ice |
genre_facet |
Arctic Pacific Arctic Sea ice |
op_doi |
https://doi.org/10.22541/essoar.168614619.96485405/v1 |
_version_ |
1800745534672076800 |