A review of recent developments in low-frequency ultra-wideband microwave radiometry for studies of the cryosphere
International audience Over the past decade, a series of airborne experiments in the Arctic and Antarctica explored microwave emission from sea ice and ice sheets at frequencies from 0.5 to 2 GHz. The experiments were motivated by the fact that lower frequencies penetrate deeper into a frozen surfac...
Published in: | Frontiers in Earth Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.science/hal-03971674 https://hal.science/hal-03971674/document https://hal.science/hal-03971674/file/feart-10-1029216.pdf https://doi.org/10.3389/feart.2022.1029216 |
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ftunivnantes:oai:HAL:hal-03971674v1 2023-05-15T13:50:43+02:00 A review of recent developments in low-frequency ultra-wideband microwave radiometry for studies of the cryosphere Jezek, K.C. Johnson, J.T. Tsang, L. Brogioni, M. Macelloni, G. Aksoy, M. Kaleschke, L. Wang, S. Leduc-Leballeur, Marion Yardim, C. Andrews, M. Xu, H. Demir, O. Tan, S. Miller, J. Ohio State University Columbus (OSU) Met Office Hadley Centre for Climate Change (MOHC) United Kingdom Met Office Exeter University of Michigan, Ann Arbor, 48109, MI, Unites States Institute of Applied Physics "Nello Carrara" (IFAC) Consiglio Nazionale delle Ricerche (CNR) University at Albany SUNY State University of New York (SUNY) AWI, Wattenmeerstation Sylt Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI) Pennsylvania State University (Penn State) Penn State System Skyworks Solutions, Inc. University of Illinois at Urbana-Champaign Urbana University of Illinois System 2022-11-10 https://hal.science/hal-03971674 https://hal.science/hal-03971674/document https://hal.science/hal-03971674/file/feart-10-1029216.pdf https://doi.org/10.3389/feart.2022.1029216 en eng HAL CCSD Frontiers Media info:eu-repo/semantics/altIdentifier/doi/10.3389/feart.2022.1029216 hal-03971674 https://hal.science/hal-03971674 https://hal.science/hal-03971674/document https://hal.science/hal-03971674/file/feart-10-1029216.pdf doi:10.3389/feart.2022.1029216 info:eu-repo/semantics/OpenAccess ISSN: 2296-6463 Frontiers in Earth Science https://hal.science/hal-03971674 Frontiers in Earth Science, 2022, 10, ⟨10.3389/feart.2022.1029216⟩ ice sheets sea ice remote sensing radiometry microwave [SDE]Environmental Sciences [PHYS]Physics [physics] info:eu-repo/semantics/article Journal articles 2022 ftunivnantes https://doi.org/10.3389/feart.2022.1029216 2023-03-01T01:01:54Z International audience Over the past decade, a series of airborne experiments in the Arctic and Antarctica explored microwave emission from sea ice and ice sheets at frequencies from 0.5 to 2 GHz. The experiments were motivated by the fact that lower frequencies penetrate deeper into a frozen surface, thus offering the possibility to measure physical temperatures at great depths in ice sheets and, subsequently, other unique geophysical observables including sea ice salinity. These experiments were made feasible by recent engineering advances in electronics, antenna design, and noise removal algorithms when operating outside of protected bands in the electromagnetic spectrum. These technical advances permit a new type of radiometer that not only operates at low frequency, but also obtains continuous spectral information over the band from 0.5 to 2 GHz. Spectral measurements facilitate an understanding of the physical processes controlling emission and also support the interpretation of results from single frequency instruments. This paper reviews the development of low-frequency, wide band radiometry and its application to cryosphere science over the past 10 years. The paper summarizes the engineering design of an airborne instrument and the associated algorithms to mitigate radio frequency interference. Theoretical models of emission built around the morphologic and electrical properties of cryospheric components are also described that identify the dominant physical processes contributing to emission spectra. New inversion techniques for geophysical parameter retrieval are summarized for both Arctic and Antarctic scenarios. Examples that illustrate how the measurements are used to inform on glaciological problems are presented. The paper concludes with a description of new instrument concepts that are foreseen to extend the technology into operation from space. Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Sea ice Université de Nantes: HAL-UNIV-NANTES Arctic Antarctic Frontiers in Earth Science 10 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
ice sheets sea ice remote sensing radiometry microwave [SDE]Environmental Sciences [PHYS]Physics [physics] |
spellingShingle |
ice sheets sea ice remote sensing radiometry microwave [SDE]Environmental Sciences [PHYS]Physics [physics] Jezek, K.C. Johnson, J.T. Tsang, L. Brogioni, M. Macelloni, G. Aksoy, M. Kaleschke, L. Wang, S. Leduc-Leballeur, Marion Yardim, C. Andrews, M. Xu, H. Demir, O. Tan, S. Miller, J. A review of recent developments in low-frequency ultra-wideband microwave radiometry for studies of the cryosphere |
topic_facet |
ice sheets sea ice remote sensing radiometry microwave [SDE]Environmental Sciences [PHYS]Physics [physics] |
description |
International audience Over the past decade, a series of airborne experiments in the Arctic and Antarctica explored microwave emission from sea ice and ice sheets at frequencies from 0.5 to 2 GHz. The experiments were motivated by the fact that lower frequencies penetrate deeper into a frozen surface, thus offering the possibility to measure physical temperatures at great depths in ice sheets and, subsequently, other unique geophysical observables including sea ice salinity. These experiments were made feasible by recent engineering advances in electronics, antenna design, and noise removal algorithms when operating outside of protected bands in the electromagnetic spectrum. These technical advances permit a new type of radiometer that not only operates at low frequency, but also obtains continuous spectral information over the band from 0.5 to 2 GHz. Spectral measurements facilitate an understanding of the physical processes controlling emission and also support the interpretation of results from single frequency instruments. This paper reviews the development of low-frequency, wide band radiometry and its application to cryosphere science over the past 10 years. The paper summarizes the engineering design of an airborne instrument and the associated algorithms to mitigate radio frequency interference. Theoretical models of emission built around the morphologic and electrical properties of cryospheric components are also described that identify the dominant physical processes contributing to emission spectra. New inversion techniques for geophysical parameter retrieval are summarized for both Arctic and Antarctic scenarios. Examples that illustrate how the measurements are used to inform on glaciological problems are presented. The paper concludes with a description of new instrument concepts that are foreseen to extend the technology into operation from space. |
author2 |
Ohio State University Columbus (OSU) Met Office Hadley Centre for Climate Change (MOHC) United Kingdom Met Office Exeter University of Michigan, Ann Arbor, 48109, MI, Unites States Institute of Applied Physics "Nello Carrara" (IFAC) Consiglio Nazionale delle Ricerche (CNR) University at Albany SUNY State University of New York (SUNY) AWI, Wattenmeerstation Sylt Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI) Pennsylvania State University (Penn State) Penn State System Skyworks Solutions, Inc. University of Illinois at Urbana-Champaign Urbana University of Illinois System |
format |
Article in Journal/Newspaper |
author |
Jezek, K.C. Johnson, J.T. Tsang, L. Brogioni, M. Macelloni, G. Aksoy, M. Kaleschke, L. Wang, S. Leduc-Leballeur, Marion Yardim, C. Andrews, M. Xu, H. Demir, O. Tan, S. Miller, J. |
author_facet |
Jezek, K.C. Johnson, J.T. Tsang, L. Brogioni, M. Macelloni, G. Aksoy, M. Kaleschke, L. Wang, S. Leduc-Leballeur, Marion Yardim, C. Andrews, M. Xu, H. Demir, O. Tan, S. Miller, J. |
author_sort |
Jezek, K.C. |
title |
A review of recent developments in low-frequency ultra-wideband microwave radiometry for studies of the cryosphere |
title_short |
A review of recent developments in low-frequency ultra-wideband microwave radiometry for studies of the cryosphere |
title_full |
A review of recent developments in low-frequency ultra-wideband microwave radiometry for studies of the cryosphere |
title_fullStr |
A review of recent developments in low-frequency ultra-wideband microwave radiometry for studies of the cryosphere |
title_full_unstemmed |
A review of recent developments in low-frequency ultra-wideband microwave radiometry for studies of the cryosphere |
title_sort |
review of recent developments in low-frequency ultra-wideband microwave radiometry for studies of the cryosphere |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03971674 https://hal.science/hal-03971674/document https://hal.science/hal-03971674/file/feart-10-1029216.pdf https://doi.org/10.3389/feart.2022.1029216 |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Antarc* Antarctic Antarctica Arctic Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Sea ice |
op_source |
ISSN: 2296-6463 Frontiers in Earth Science https://hal.science/hal-03971674 Frontiers in Earth Science, 2022, 10, ⟨10.3389/feart.2022.1029216⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3389/feart.2022.1029216 hal-03971674 https://hal.science/hal-03971674 https://hal.science/hal-03971674/document https://hal.science/hal-03971674/file/feart-10-1029216.pdf doi:10.3389/feart.2022.1029216 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3389/feart.2022.1029216 |
container_title |
Frontiers in Earth Science |
container_volume |
10 |
_version_ |
1766253886091296768 |