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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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5007404 2023-05-15T15:06:42+02:00 GNSS-based water vapor estimation and validation during the MOSAiC expedition Männel, B. Zus, F. Dick, G. Glaser, S. Semmling, M. Balidakis, K. Wickert, J. Maturilli, M. Dahlke, S. Schuh, H. 2021 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007404 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007404_1/component/file_5007407/5007404.pdf unknown info:eu-repo/semantics/altIdentifier/doi/10.5194/amt-14-5127-2021 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007404 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007404_1/component/file_5007407/5007404.pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ CC-BY Atmospheric Measurement Techniques info:eu-repo/semantics/article 2021 ftgfzpotsdam https://doi.org/10.5194/amt-14-5127-2021 2022-09-14T05:57:48Z 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 GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Arctic Ny-Ålesund Atmospheric Measurement Techniques 14 7 5127 5138 |
institution |
Open Polar |
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GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
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, B. Zus, F. Dick, G. Glaser, S. Semmling, M. Balidakis, K. Wickert, J. Maturilli, M. Dahlke, S. Schuh, H. |
spellingShingle |
Männel, B. Zus, F. Dick, G. Glaser, S. Semmling, M. Balidakis, K. Wickert, J. Maturilli, M. Dahlke, S. Schuh, H. GNSS-based water vapor estimation and validation during the MOSAiC expedition |
author_facet |
Männel, B. Zus, F. Dick, G. Glaser, S. Semmling, M. Balidakis, K. Wickert, J. Maturilli, M. Dahlke, S. Schuh, H. |
author_sort |
Männel, B. |
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 |
publishDate |
2021 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007404 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007404_1/component/file_5007407/5007404.pdf |
geographic |
Arctic Ny-Ålesund |
geographic_facet |
Arctic Ny-Ålesund |
genre |
Arctic Ny Ålesund Ny-Ålesund |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund |
op_source |
Atmospheric Measurement Techniques |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/amt-14-5127-2021 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007404 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007404_1/component/file_5007407/5007404.pdf |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/amt-14-5127-2021 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
14 |
container_issue |
7 |
container_start_page |
5127 |
op_container_end_page |
5138 |
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1766338250091266048 |