GNSS-based water vapor estimation and validation during the MOSAiC expedition
Within the transpolar drifting expedition MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate), the Global Navigation Satellite System (GNSS) was used among other techniques to monitor variations in atmospheric water vapor. Based on 15 months of continuously tracked GNSS d...
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Online Access: | https://elib.dlr.de/142424/ https://elib.dlr.de/142424/1/amt-14-5127-2021.pdf https://amt.copernicus.org/articles/14/5127/2021/ |
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ftdlr:oai:elib.dlr.de:142424 2024-01-14T10:04:44+01:00 GNSS-based water vapor estimation and validation during the MOSAiC expedition Männel, Benjamin Zus, Florian Dick, Galina Glaser, Susanne Semmling, Maximilian Balidakis, Kyriakos Wickert, Jens Maturilli, Marion Dahlke, Sandro Schuh, Harald 2021-07-28 application/pdf https://elib.dlr.de/142424/ https://elib.dlr.de/142424/1/amt-14-5127-2021.pdf https://amt.copernicus.org/articles/14/5127/2021/ en eng Copernicus Publications https://elib.dlr.de/142424/1/amt-14-5127-2021.pdf Männel, Benjamin und Zus, Florian und Dick, Galina und Glaser, Susanne und Semmling, Maximilian und Balidakis, Kyriakos und Wickert, Jens und Maturilli, Marion und Dahlke, Sandro und Schuh, Harald (2021) GNSS-based water vapor estimation and validation during the MOSAiC expedition. Atmospheric Measurement Techniques (AMT) (14), Seiten 5127-5138. Copernicus Publications. doi:10.5194/amt-14-5127-2021 <https://doi.org/10.5194/amt-14-5127-2021>. ISSN 1867-1381. cc_by Weltraumwetterbeobachtung Zeitschriftenbeitrag PeerReviewed 2021 ftdlr https://doi.org/10.5194/amt-14-5127-2021 2023-12-18T00:23:56Z Within the transpolar drifting expedition MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate), the Global Navigation Satellite System (GNSS) was used among other techniques to monitor variations in atmospheric water vapor. Based on 15 months of continuously tracked GNSS data including GPS, GLONASS and Galileo, epoch-wise coordinates and hourly zenith total delays (ZTDs) were determined using a kinematic precise point positioning (PPP) approach. The derived ZTD values agree to 1.1 ± 0.2 mm (root mean square (rms) of the differences 10.2 mm) with the numerical weather data of ECMWF's latest reanalysis, ERA5, computed for the derived ship's locations. This level of agreement is also confirmed by comparing the on-board estimates with ZTDs derived for terrestrial GNSS stations in Bremerhaven and Ny-Ålesund and for the radio telescopes observing very long baseline interferometry in Ny-Ålesund. Preliminary estimates of integrated water vapor derived from frequently launched radiosondes are used to assess the GNSS-derived integrated water vapor estimates. The overall difference of 0.08 ± 0.04 kg m^-2 (rms of the differences 1.47 kg m^-2) demonstrates a good agreement between GNSS and radiosonde data. Finally, the water vapor variations associated with two warm-air intrusion events in April 2020 are assessed. Article in Journal/Newspaper Arctic Ny Ålesund Ny-Ålesund German Aerospace Center: elib - DLR electronic library Arctic Ny-Ålesund Atmospheric Measurement Techniques 14 7 5127 5138 |
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German Aerospace Center: elib - DLR electronic library |
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language |
English |
topic |
Weltraumwetterbeobachtung |
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Weltraumwetterbeobachtung Männel, Benjamin Zus, Florian Dick, Galina Glaser, Susanne Semmling, Maximilian Balidakis, Kyriakos Wickert, Jens Maturilli, Marion Dahlke, Sandro Schuh, Harald GNSS-based water vapor estimation and validation during the MOSAiC expedition |
topic_facet |
Weltraumwetterbeobachtung |
description |
Within the transpolar drifting expedition MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate), the Global Navigation Satellite System (GNSS) was used among other techniques to monitor variations in atmospheric water vapor. Based on 15 months of continuously tracked GNSS data including GPS, GLONASS and Galileo, epoch-wise coordinates and hourly zenith total delays (ZTDs) were determined using a kinematic precise point positioning (PPP) approach. The derived ZTD values agree to 1.1 ± 0.2 mm (root mean square (rms) of the differences 10.2 mm) with the numerical weather data of ECMWF's latest reanalysis, ERA5, computed for the derived ship's locations. This level of agreement is also confirmed by comparing the on-board estimates with ZTDs derived for terrestrial GNSS stations in Bremerhaven and Ny-Ålesund and for the radio telescopes observing very long baseline interferometry in Ny-Ålesund. Preliminary estimates of integrated water vapor derived from frequently launched radiosondes are used to assess the GNSS-derived integrated water vapor estimates. The overall difference of 0.08 ± 0.04 kg m^-2 (rms of the differences 1.47 kg m^-2) demonstrates a good agreement between GNSS and radiosonde data. Finally, the water vapor variations associated with two warm-air intrusion events in April 2020 are assessed. |
format |
Article in Journal/Newspaper |
author |
Männel, Benjamin Zus, Florian Dick, Galina Glaser, Susanne Semmling, Maximilian Balidakis, Kyriakos Wickert, Jens Maturilli, Marion Dahlke, Sandro Schuh, Harald |
author_facet |
Männel, Benjamin Zus, Florian Dick, Galina Glaser, Susanne Semmling, Maximilian Balidakis, Kyriakos Wickert, Jens Maturilli, Marion Dahlke, Sandro Schuh, Harald |
author_sort |
Männel, Benjamin |
title |
GNSS-based water vapor estimation and validation during the MOSAiC expedition |
title_short |
GNSS-based water vapor estimation and validation during the MOSAiC expedition |
title_full |
GNSS-based water vapor estimation and validation during the MOSAiC expedition |
title_fullStr |
GNSS-based water vapor estimation and validation during the MOSAiC expedition |
title_full_unstemmed |
GNSS-based water vapor estimation and validation during the MOSAiC expedition |
title_sort |
gnss-based water vapor estimation and validation during the mosaic expedition |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://elib.dlr.de/142424/ https://elib.dlr.de/142424/1/amt-14-5127-2021.pdf https://amt.copernicus.org/articles/14/5127/2021/ |
geographic |
Arctic Ny-Ålesund |
geographic_facet |
Arctic Ny-Ålesund |
genre |
Arctic Ny Ålesund Ny-Ålesund |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund |
op_relation |
https://elib.dlr.de/142424/1/amt-14-5127-2021.pdf Männel, Benjamin und Zus, Florian und Dick, Galina und Glaser, Susanne und Semmling, Maximilian und Balidakis, Kyriakos und Wickert, Jens und Maturilli, Marion und Dahlke, Sandro und Schuh, Harald (2021) GNSS-based water vapor estimation and validation during the MOSAiC expedition. Atmospheric Measurement Techniques (AMT) (14), Seiten 5127-5138. Copernicus Publications. doi:10.5194/amt-14-5127-2021 <https://doi.org/10.5194/amt-14-5127-2021>. ISSN 1867-1381. |
op_rights |
cc_by |
op_doi |
https://doi.org/10.5194/amt-14-5127-2021 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
14 |
container_issue |
7 |
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5127 |
op_container_end_page |
5138 |
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1788059216522510336 |