A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland
An airborne gravimeter is one of the most important tools for gravity data collection over large areas with mGal accuracy and a spatial resolution of several kilometers. In August 2012, a flight test was carried out to determine the feasibility and to assess the accuracy of the new Chinese SGA-WZ st...
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ftpubmed:oai:pubmedcentral.nih.gov:4507644 2023-05-15T16:27:15+02:00 A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland Zhao, Lei Forsberg, René Wu, Meiping Olesen, Arne Vestergaard Zhang, Kaidong Cao, Juliang 2015-06-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507644/ http://www.ncbi.nlm.nih.gov/pubmed/26057039 https://doi.org/10.3390/s150613258 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507644/ http://www.ncbi.nlm.nih.gov/pubmed/26057039 http://dx.doi.org/10.3390/s150613258 © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/). CC-BY Article Text 2015 ftpubmed https://doi.org/10.3390/s150613258 2015-07-26T00:04:35Z An airborne gravimeter is one of the most important tools for gravity data collection over large areas with mGal accuracy and a spatial resolution of several kilometers. In August 2012, a flight test was carried out to determine the feasibility and to assess the accuracy of the new Chinese SGA-WZ strapdown airborne gravimeter in Greenland, in an area with good gravity coverage from earlier marine and airborne surveys. An overview of this new system SGA-WZ is given, including system design, sensor performance and data processing. The processing of the SGA-WZ includes a 160 s length finite impulse response filter, corresponding to a spatial resolution of 6 km. For the primary repeated line, a mean r.m.s. deviation of the differences was less than 1.5 mGal, with the error estimate confirmed from ground truth data. This implies that the SGA-WZ could meet standard geophysical survey requirements at the 1 mGal level. Text Greenland PubMed Central (PMC) Greenland Sensors 15 6 13258 13269 |
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Article Zhao, Lei Forsberg, René Wu, Meiping Olesen, Arne Vestergaard Zhang, Kaidong Cao, Juliang A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
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description |
An airborne gravimeter is one of the most important tools for gravity data collection over large areas with mGal accuracy and a spatial resolution of several kilometers. In August 2012, a flight test was carried out to determine the feasibility and to assess the accuracy of the new Chinese SGA-WZ strapdown airborne gravimeter in Greenland, in an area with good gravity coverage from earlier marine and airborne surveys. An overview of this new system SGA-WZ is given, including system design, sensor performance and data processing. The processing of the SGA-WZ includes a 160 s length finite impulse response filter, corresponding to a spatial resolution of 6 km. For the primary repeated line, a mean r.m.s. deviation of the differences was less than 1.5 mGal, with the error estimate confirmed from ground truth data. This implies that the SGA-WZ could meet standard geophysical survey requirements at the 1 mGal level. |
format |
Text |
author |
Zhao, Lei Forsberg, René Wu, Meiping Olesen, Arne Vestergaard Zhang, Kaidong Cao, Juliang |
author_facet |
Zhao, Lei Forsberg, René Wu, Meiping Olesen, Arne Vestergaard Zhang, Kaidong Cao, Juliang |
author_sort |
Zhao, Lei |
title |
A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
title_short |
A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
title_full |
A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
title_fullStr |
A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
title_full_unstemmed |
A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
title_sort |
flight test of the strapdown airborne gravimeter sga-wz in greenland |
publisher |
MDPI |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507644/ http://www.ncbi.nlm.nih.gov/pubmed/26057039 https://doi.org/10.3390/s150613258 |
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Greenland |
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Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507644/ http://www.ncbi.nlm.nih.gov/pubmed/26057039 http://dx.doi.org/10.3390/s150613258 |
op_rights |
© 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
op_doi |
https://doi.org/10.3390/s150613258 |
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