GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept
The global navigation satellite system (GNSS) Transpolar Earth Reflectometry exploriNg system (G-TERN) was proposed in response to ESA's Earth Explorer 9 revised call by a team of 33 multi-disciplinary scientists. The primary objective of the mission is to quantify at high spatio-temporal resol...
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Institute of Electrical and Electronics Engineers (IEEE)
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Online Access: | http://hdl.handle.net/2117/117154 https://doi.org/10.1109/ACCESS.2018.2814072 |
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ftupcatalunya:oai:upcommons.upc.edu:2117/117154 2023-05-15T13:45:53+02:00 GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept Cardellach Galí, Estel Wickert, Jens Baggen, Rens Camps Carmona, Adriano José Hernández Pajares, Manuel Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. Departament de Matemàtiques Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció Universitat Politècnica de Catalunya. IonSAT - Grup de determinació Ionosfèrica i navegació per SAtèl·lit i sistemes Terrestres 2018-03-09 39 p. http://hdl.handle.net/2117/117154 https://doi.org/10.1109/ACCESS.2018.2814072 eng eng Institute of Electrical and Electronics Engineers (IEEE) https://ieeexplore.ieee.org/document/8310650/ Open Access Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció Remote sensing Polar science GNSS Reflectometry GNSS-R Sea ice Altimetry Polarimetry Radio-occultation Low earth orbiter Teledetecció Article 2018 ftupcatalunya https://doi.org/10.1109/ACCESS.2018.2814072 2019-09-29T09:20:59Z The global navigation satellite system (GNSS) Transpolar Earth Reflectometry exploriNg system (G-TERN) was proposed in response to ESA's Earth Explorer 9 revised call by a team of 33 multi-disciplinary scientists. The primary objective of the mission is to quantify at high spatio-temporal resolution crucial characteristics, processes and interactions between sea ice, and other Earth system components in order to advance the understanding and prediction of climate change and its impacts on the environment and society. The objective is articulated through three key questions. 1) In a rapidly changing Arctic regime and under the resilient Antarctic sea ice trend, how will highly dynamic forcings and couplings between the various components of the ocean, atmosphere, and cryosphere modify or influence the processes governing the characteristics of the sea ice cover (ice production, growth, deformation, and melt)? 2) What are the impacts of extreme events and feedback mechanisms on sea ice evolution? 3) What are the effects of the cryosphere behaviors, either rapidly changing or resiliently stable, on the global oceanic and atmospheric circulation and mid-latitude extreme events? To contribute answering these questions, G-TERN will measure key parameters of the sea ice, the oceans, and the atmosphere with frequent and dense coverage over polar areas, becoming a “dynamic mapper”of the ice conditions, the ice production, and the loss in multiple time and space scales, and surrounding environment. Over polar areas, the G-TERN will measure sea ice surface elevation (<;10 cm precision), roughness, and polarimetry aspects at 30-km resolution and 3-days full coverage. G-TERN will implement the interferometric GNSS reflectometry concept, from a single satellite in near-polar orbit with capability for 12 simultaneous observations. Unlike currently orbiting GNSS reflectometry missions, the G-TERN uses the full GNSS available bandwidth to improve its ranging measurements. The lifetime would be 2025-2030 or optimally 2025-2035, covering key stages of the transition toward a nearly ice-free Arctic Ocean in summer. This paper describes the mission objectives, it reviews its measurement techniques, summarizes the suggested implementation, and finally, it estimates the expected performance. Peer Reviewed Postprint (published version) Article in Journal/Newspaper Antarc* Antarctic Arctic Arctic Ocean Climate change Sea ice Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX) Antarctic Arctic Arctic Ocean IEEE Access 6 13980 14018 |
institution |
Open Polar |
collection |
Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX) |
op_collection_id |
ftupcatalunya |
language |
English |
topic |
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció Remote sensing Polar science GNSS Reflectometry GNSS-R Sea ice Altimetry Polarimetry Radio-occultation Low earth orbiter Teledetecció |
spellingShingle |
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció Remote sensing Polar science GNSS Reflectometry GNSS-R Sea ice Altimetry Polarimetry Radio-occultation Low earth orbiter Teledetecció Cardellach Galí, Estel Wickert, Jens Baggen, Rens Camps Carmona, Adriano José Hernández Pajares, Manuel GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept |
topic_facet |
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció Remote sensing Polar science GNSS Reflectometry GNSS-R Sea ice Altimetry Polarimetry Radio-occultation Low earth orbiter Teledetecció |
description |
The global navigation satellite system (GNSS) Transpolar Earth Reflectometry exploriNg system (G-TERN) was proposed in response to ESA's Earth Explorer 9 revised call by a team of 33 multi-disciplinary scientists. The primary objective of the mission is to quantify at high spatio-temporal resolution crucial characteristics, processes and interactions between sea ice, and other Earth system components in order to advance the understanding and prediction of climate change and its impacts on the environment and society. The objective is articulated through three key questions. 1) In a rapidly changing Arctic regime and under the resilient Antarctic sea ice trend, how will highly dynamic forcings and couplings between the various components of the ocean, atmosphere, and cryosphere modify or influence the processes governing the characteristics of the sea ice cover (ice production, growth, deformation, and melt)? 2) What are the impacts of extreme events and feedback mechanisms on sea ice evolution? 3) What are the effects of the cryosphere behaviors, either rapidly changing or resiliently stable, on the global oceanic and atmospheric circulation and mid-latitude extreme events? To contribute answering these questions, G-TERN will measure key parameters of the sea ice, the oceans, and the atmosphere with frequent and dense coverage over polar areas, becoming a “dynamic mapper”of the ice conditions, the ice production, and the loss in multiple time and space scales, and surrounding environment. Over polar areas, the G-TERN will measure sea ice surface elevation (<;10 cm precision), roughness, and polarimetry aspects at 30-km resolution and 3-days full coverage. G-TERN will implement the interferometric GNSS reflectometry concept, from a single satellite in near-polar orbit with capability for 12 simultaneous observations. Unlike currently orbiting GNSS reflectometry missions, the G-TERN uses the full GNSS available bandwidth to improve its ranging measurements. The lifetime would be 2025-2030 or optimally 2025-2035, covering key stages of the transition toward a nearly ice-free Arctic Ocean in summer. This paper describes the mission objectives, it reviews its measurement techniques, summarizes the suggested implementation, and finally, it estimates the expected performance. Peer Reviewed Postprint (published version) |
author2 |
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. Departament de Matemàtiques Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció Universitat Politècnica de Catalunya. IonSAT - Grup de determinació Ionosfèrica i navegació per SAtèl·lit i sistemes Terrestres |
format |
Article in Journal/Newspaper |
author |
Cardellach Galí, Estel Wickert, Jens Baggen, Rens Camps Carmona, Adriano José Hernández Pajares, Manuel |
author_facet |
Cardellach Galí, Estel Wickert, Jens Baggen, Rens Camps Carmona, Adriano José Hernández Pajares, Manuel |
author_sort |
Cardellach Galí, Estel |
title |
GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept |
title_short |
GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept |
title_full |
GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept |
title_fullStr |
GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept |
title_full_unstemmed |
GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept |
title_sort |
gnss transpolar earth reflectometry exploring system (g-tern): mission concept |
publisher |
Institute of Electrical and Electronics Engineers (IEEE) |
publishDate |
2018 |
url |
http://hdl.handle.net/2117/117154 https://doi.org/10.1109/ACCESS.2018.2814072 |
geographic |
Antarctic Arctic Arctic Ocean |
geographic_facet |
Antarctic Arctic Arctic Ocean |
genre |
Antarc* Antarctic Arctic Arctic Ocean Climate change Sea ice |
genre_facet |
Antarc* Antarctic Arctic Arctic Ocean Climate change Sea ice |
op_relation |
https://ieeexplore.ieee.org/document/8310650/ |
op_rights |
Open Access |
op_doi |
https://doi.org/10.1109/ACCESS.2018.2814072 |
container_title |
IEEE Access |
container_volume |
6 |
container_start_page |
13980 |
op_container_end_page |
14018 |
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1766232055911284736 |