Thirteen years of integrated precipitable water derived by GPS at Mario Zucchelli Station, Antarctica
Since 1998, the Italian Antarctic Programme has been funding space geodetic activities based on the use of episodic and permanent global positioning system (GPS) observations. As well as their exploitation in geodynamics, these data can be used to sense the atmosphere and to retrieve and monitor its...
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Istituto Nazionale di Geofisica e Vulcanologia, INGV
2013
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Online Access: | https://www.annalsofgeophysics.eu/index.php/annals/article/view/6228 https://doi.org/10.4401/ag-6228 |
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ftjaog:oai:ojs.annalsofgeophysics.eu:article/6228 2023-05-15T13:54:52+02:00 Thirteen years of integrated precipitable water derived by GPS at Mario Zucchelli Station, Antarctica Sarti, Pierguido Negusini, Monia Tomasi, Claudio Petkov, Boyan H. Capra, Alessandro 2013-06-11 application/pdf https://www.annalsofgeophysics.eu/index.php/annals/article/view/6228 https://doi.org/10.4401/ag-6228 eng eng Istituto Nazionale di Geofisica e Vulcanologia, INGV https://www.annalsofgeophysics.eu/index.php/annals/article/view/6228/6221 https://www.annalsofgeophysics.eu/index.php/annals/article/view/6228 doi:10.4401/ag-6228 Annals of Geophysics; V. 56 N. 2 (2013): GRAPE, GNSS Research and Application for Polar Environment, Expert Group of SCAR; R0221 Annals of Geophysics; Vol. 56 No. 2 (2013): GRAPE, GNSS Research and Application for Polar Environment, Expert Group of SCAR; R0221 2037-416X 1593-5213 Composition and Structure Instruments and techniques Measurements and monitoring Satellite geodesy Data processing 01.01.01. Composition and Structure 01.01.08. Instruments and techniques 04.03.06. Measurements and monitoring 04.03.07. Satellite geodesy 05.01.01 Data processing info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Special Issue Article 2013 ftjaog https://doi.org/10.4401/ag-6228 2022-03-27T06:38:14Z Since 1998, the Italian Antarctic Programme has been funding space geodetic activities based on the use of episodic and permanent global positioning system (GPS) observations. As well as their exploitation in geodynamics, these data can be used to sense the atmosphere and to retrieve and monitor its water vapor content and variations. The surface pressure p and temperature Ts at the GPS tracking sites are necessary to compute the zenith hydrostatic delay (ZHD), and consequently, the precipitable water. At sites where no surface information is recorded, the p and Ts values can be retrieved from, e.g., global numerical weather prediction models. Alternatively, the site-specific ZHD values can be computed by interpolation of the ZHD values provided in a grid model (2.5° × 2.0°). We have processed the data series of the permanent GPS site TNB1 (Mario Zucchelli Station, Antarctica) from 1998 to 2010, with the purpose of comparing the use of grid ZHD values as an alternative to the use of real surface records. With these approaches, we estimate almost 7 × 104 hourly values of precipitable water over 13 years, and we find discrepancies that vary between 1.8 (±0.2) mm in summer and 3.3 (±0.5) mm in winter. In addition, the discrepancies of the two solutions show a clear seasonal dependency. Radiosounding measurements were used to derive an independent series of precipitable water. These agree better with the GPS precipitable water derived from real surface data. However, the GPS precipitable water time series is dry biased, as it is ca. 77% of the total moisture measured by the radiosoundings. Both the GPS and radiosounding observations are processed through the most up-to-date strategies, to reduce known systematic errors. Article in Journal/Newspaper Antarc* Antarctic Antarctica Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia) Antarctic Mario Zucchelli ENVELOPE(164.123,164.123,-74.695,-74.695) Mario Zucchelli Station ENVELOPE(164.117,164.117,-74.700,-74.700) Annals of Geophysics 56 2 |
institution |
Open Polar |
collection |
Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftjaog |
language |
English |
topic |
Composition and Structure Instruments and techniques Measurements and monitoring Satellite geodesy Data processing 01.01.01. Composition and Structure 01.01.08. Instruments and techniques 04.03.06. Measurements and monitoring 04.03.07. Satellite geodesy 05.01.01 Data processing |
spellingShingle |
Composition and Structure Instruments and techniques Measurements and monitoring Satellite geodesy Data processing 01.01.01. Composition and Structure 01.01.08. Instruments and techniques 04.03.06. Measurements and monitoring 04.03.07. Satellite geodesy 05.01.01 Data processing Sarti, Pierguido Negusini, Monia Tomasi, Claudio Petkov, Boyan H. Capra, Alessandro Thirteen years of integrated precipitable water derived by GPS at Mario Zucchelli Station, Antarctica |
topic_facet |
Composition and Structure Instruments and techniques Measurements and monitoring Satellite geodesy Data processing 01.01.01. Composition and Structure 01.01.08. Instruments and techniques 04.03.06. Measurements and monitoring 04.03.07. Satellite geodesy 05.01.01 Data processing |
description |
Since 1998, the Italian Antarctic Programme has been funding space geodetic activities based on the use of episodic and permanent global positioning system (GPS) observations. As well as their exploitation in geodynamics, these data can be used to sense the atmosphere and to retrieve and monitor its water vapor content and variations. The surface pressure p and temperature Ts at the GPS tracking sites are necessary to compute the zenith hydrostatic delay (ZHD), and consequently, the precipitable water. At sites where no surface information is recorded, the p and Ts values can be retrieved from, e.g., global numerical weather prediction models. Alternatively, the site-specific ZHD values can be computed by interpolation of the ZHD values provided in a grid model (2.5° × 2.0°). We have processed the data series of the permanent GPS site TNB1 (Mario Zucchelli Station, Antarctica) from 1998 to 2010, with the purpose of comparing the use of grid ZHD values as an alternative to the use of real surface records. With these approaches, we estimate almost 7 × 104 hourly values of precipitable water over 13 years, and we find discrepancies that vary between 1.8 (±0.2) mm in summer and 3.3 (±0.5) mm in winter. In addition, the discrepancies of the two solutions show a clear seasonal dependency. Radiosounding measurements were used to derive an independent series of precipitable water. These agree better with the GPS precipitable water derived from real surface data. However, the GPS precipitable water time series is dry biased, as it is ca. 77% of the total moisture measured by the radiosoundings. Both the GPS and radiosounding observations are processed through the most up-to-date strategies, to reduce known systematic errors. |
format |
Article in Journal/Newspaper |
author |
Sarti, Pierguido Negusini, Monia Tomasi, Claudio Petkov, Boyan H. Capra, Alessandro |
author_facet |
Sarti, Pierguido Negusini, Monia Tomasi, Claudio Petkov, Boyan H. Capra, Alessandro |
author_sort |
Sarti, Pierguido |
title |
Thirteen years of integrated precipitable water derived by GPS at Mario Zucchelli Station, Antarctica |
title_short |
Thirteen years of integrated precipitable water derived by GPS at Mario Zucchelli Station, Antarctica |
title_full |
Thirteen years of integrated precipitable water derived by GPS at Mario Zucchelli Station, Antarctica |
title_fullStr |
Thirteen years of integrated precipitable water derived by GPS at Mario Zucchelli Station, Antarctica |
title_full_unstemmed |
Thirteen years of integrated precipitable water derived by GPS at Mario Zucchelli Station, Antarctica |
title_sort |
thirteen years of integrated precipitable water derived by gps at mario zucchelli station, antarctica |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia, INGV |
publishDate |
2013 |
url |
https://www.annalsofgeophysics.eu/index.php/annals/article/view/6228 https://doi.org/10.4401/ag-6228 |
long_lat |
ENVELOPE(164.123,164.123,-74.695,-74.695) ENVELOPE(164.117,164.117,-74.700,-74.700) |
geographic |
Antarctic Mario Zucchelli Mario Zucchelli Station |
geographic_facet |
Antarctic Mario Zucchelli Mario Zucchelli Station |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Annals of Geophysics; V. 56 N. 2 (2013): GRAPE, GNSS Research and Application for Polar Environment, Expert Group of SCAR; R0221 Annals of Geophysics; Vol. 56 No. 2 (2013): GRAPE, GNSS Research and Application for Polar Environment, Expert Group of SCAR; R0221 2037-416X 1593-5213 |
op_relation |
https://www.annalsofgeophysics.eu/index.php/annals/article/view/6228/6221 https://www.annalsofgeophysics.eu/index.php/annals/article/view/6228 doi:10.4401/ag-6228 |
op_doi |
https://doi.org/10.4401/ag-6228 |
container_title |
Annals of Geophysics |
container_volume |
56 |
container_issue |
2 |
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1766261016078843904 |