Airborne gravity tests in the Italian area to improve the geoid model of Italy
Airborne gravimetry is an important method for measuring gravity over large un- surveyed areas. This technology has been widely applied in Canada, Antarctica and Greenland to map the gravity fields of these regions and in recent years, in the oil industry. In 2005, two tests in the Italian area were...
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ftingv:oai:www.earth-prints.org:2122/12927 2023-05-15T14:01:37+02:00 Airborne gravity tests in the Italian area to improve the geoid model of Italy Barzaghi, Riccardo Borghi, Alessandra Keller, K Forsberg, R. Giori, I. Loretti, I. Olesen, A.V. Stenseng, Lars #PLACEHOLDER_PARENT_METADATA_VALUE# 2009 http://hdl.handle.net/2122/12927 https://doi.org/10.1111/j.1365-2478.2008.00776.x en eng Geophysical Prospecting /57 (2009) http://hdl.handle.net/2122/12927 doi:10.1111/j.1365-2478.2008.00776.x restricted article 2009 ftingv https://doi.org/10.1111/j.1365-2478.2008.00776.x 2022-07-29T06:07:55Z Airborne gravimetry is an important method for measuring gravity over large un- surveyed areas. This technology has been widely applied in Canada, Antarctica and Greenland to map the gravity fields of these regions and in recent years, in the oil industry. In 2005, two tests in the Italian area were performed by ENI in cooperation with the Politecnico di Milano and the Danish National Space Center. To the knowl- edge of the authors, these were the first experiments of this kind in Italy and were performed over the Ionian coasts of Calabria and the Maiella Mountains. The Cal- abria test field is characterized by strong gravity variations due to the geophysical and topographic structure of the area. The ground gravity coverage is also quite dense. It was thus possible to compare airborne gravity with the ground observed values in order to check the precision of the airborne gravimetry. The second campaign was performed in an unsurveyed area centred on the Maiella Mountains, thus filling the data gap of this zone. Comparisons with existing ground data were also carried out in this area. After smoothing, the collected data have an accuracy of 2–3 mgal, as derived by cross-over analysis. Moreover, the collocation method applied to compare and merge ground-based and airborne data proved to be efficient and reliable. The standard de- viation of the discrepancies between airborne data and collocation upward continued gravity is, in both cases, less than 8 mgal. In the Maiella test, the gravity field obtained by merging airborne and ground data using collocation also provides a more detailed description of the high-frequency pattern of the geopotential field in this area. Published 625–632 1T. Struttura della Terra JCR Journal Article in Journal/Newspaper Antarc* Antarctica Greenland Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Canada Greenland Geophysical Prospecting 57 4 625 632 |
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Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
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ftingv |
language |
English |
description |
Airborne gravimetry is an important method for measuring gravity over large un- surveyed areas. This technology has been widely applied in Canada, Antarctica and Greenland to map the gravity fields of these regions and in recent years, in the oil industry. In 2005, two tests in the Italian area were performed by ENI in cooperation with the Politecnico di Milano and the Danish National Space Center. To the knowl- edge of the authors, these were the first experiments of this kind in Italy and were performed over the Ionian coasts of Calabria and the Maiella Mountains. The Cal- abria test field is characterized by strong gravity variations due to the geophysical and topographic structure of the area. The ground gravity coverage is also quite dense. It was thus possible to compare airborne gravity with the ground observed values in order to check the precision of the airborne gravimetry. The second campaign was performed in an unsurveyed area centred on the Maiella Mountains, thus filling the data gap of this zone. Comparisons with existing ground data were also carried out in this area. After smoothing, the collected data have an accuracy of 2–3 mgal, as derived by cross-over analysis. Moreover, the collocation method applied to compare and merge ground-based and airborne data proved to be efficient and reliable. The standard de- viation of the discrepancies between airborne data and collocation upward continued gravity is, in both cases, less than 8 mgal. In the Maiella test, the gravity field obtained by merging airborne and ground data using collocation also provides a more detailed description of the high-frequency pattern of the geopotential field in this area. Published 625–632 1T. Struttura della Terra JCR Journal |
author2 |
#PLACEHOLDER_PARENT_METADATA_VALUE# |
format |
Article in Journal/Newspaper |
author |
Barzaghi, Riccardo Borghi, Alessandra Keller, K Forsberg, R. Giori, I. Loretti, I. Olesen, A.V. Stenseng, Lars |
spellingShingle |
Barzaghi, Riccardo Borghi, Alessandra Keller, K Forsberg, R. Giori, I. Loretti, I. Olesen, A.V. Stenseng, Lars Airborne gravity tests in the Italian area to improve the geoid model of Italy |
author_facet |
Barzaghi, Riccardo Borghi, Alessandra Keller, K Forsberg, R. Giori, I. Loretti, I. Olesen, A.V. Stenseng, Lars |
author_sort |
Barzaghi, Riccardo |
title |
Airborne gravity tests in the Italian area to improve the geoid model of Italy |
title_short |
Airborne gravity tests in the Italian area to improve the geoid model of Italy |
title_full |
Airborne gravity tests in the Italian area to improve the geoid model of Italy |
title_fullStr |
Airborne gravity tests in the Italian area to improve the geoid model of Italy |
title_full_unstemmed |
Airborne gravity tests in the Italian area to improve the geoid model of Italy |
title_sort |
airborne gravity tests in the italian area to improve the geoid model of italy |
publishDate |
2009 |
url |
http://hdl.handle.net/2122/12927 https://doi.org/10.1111/j.1365-2478.2008.00776.x |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_relation |
Geophysical Prospecting /57 (2009) http://hdl.handle.net/2122/12927 doi:10.1111/j.1365-2478.2008.00776.x |
op_rights |
restricted |
op_doi |
https://doi.org/10.1111/j.1365-2478.2008.00776.x |
container_title |
Geophysical Prospecting |
container_volume |
57 |
container_issue |
4 |
container_start_page |
625 |
op_container_end_page |
632 |
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1766271575623991296 |