Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude Region
Available marine free-air gravity anomalies (FAGA) derived from multiple satellite altimetry missions have had geologically useful, short wavelength features removed during processing. An approach is described for augmenting these FAGA in the high latitude region with coherent higher frequency data....
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ftdoajarticles:oai:doaj.org/article:f90e14fb7aea4816aa2200ac5fac8afc 2023-05-15T15:04:37+02:00 Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude Region Jeong Woo Kim Daniel R. Roman Bang-Yong Lee Yeadong Kim 2008-01-01T00:00:00Z https://doaj.org/article/f90e14fb7aea4816aa2200ac5fac8afc EN eng Springer http://tao.cgu.org.tw/images/attachments/v191-2p111.pdf https://doaj.org/toc/1017-0839 https://doaj.org/toc/2311-7680 1017-0839 2311-7680 10.3319/TAO.2008.19.1-2.111(SA) https://doaj.org/article/f90e14fb7aea4816aa2200ac5fac8afc Terrestrial, Atmospheric and Oceanic Sciences, Vol 19, Iss 1, p 111 (2008) Altimetry-derived gravity anomaly Barents Sea ERS-1 Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 article 2008 ftdoajarticles 2022-12-30T23:58:22Z Available marine free-air gravity anomalies (FAGA) derived from multiple satellite altimetry missions have had geologically useful, short wavelength features removed during processing. An approach is described for augmenting these FAGA in the high latitude region with coherent higher frequency data. This added-value approach is demonstrated over the Barents Sea in the Arctic using existing FAGA predictions from the Danish National Cadastre (KMS98) as a reference. Short wavelength components between 4 and 111 km were added from reduced and correlation-filtered ERS1 168-day mission altimetry that had been sorted into ascending and descending datasets for separate processing. The processed data were then recombined by spectral quadrant swapping to generate a correlated, high frequency gravity field related to the local geologic sources. This added-value surface adjusted the reference FAGA to better reflect features at wavelengths related to the distances between altimetry tracks. Article in Journal/Newspaper Arctic Barents Sea Directory of Open Access Journals: DOAJ Articles Arctic Barents Sea |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Altimetry-derived gravity anomaly Barents Sea ERS-1 Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Altimetry-derived gravity anomaly Barents Sea ERS-1 Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 Jeong Woo Kim Daniel R. Roman Bang-Yong Lee Yeadong Kim Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude Region |
topic_facet |
Altimetry-derived gravity anomaly Barents Sea ERS-1 Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
description |
Available marine free-air gravity anomalies (FAGA) derived from multiple satellite altimetry missions have had geologically useful, short wavelength features removed during processing. An approach is described for augmenting these FAGA in the high latitude region with coherent higher frequency data. This added-value approach is demonstrated over the Barents Sea in the Arctic using existing FAGA predictions from the Danish National Cadastre (KMS98) as a reference. Short wavelength components between 4 and 111 km were added from reduced and correlation-filtered ERS1 168-day mission altimetry that had been sorted into ascending and descending datasets for separate processing. The processed data were then recombined by spectral quadrant swapping to generate a correlated, high frequency gravity field related to the local geologic sources. This added-value surface adjusted the reference FAGA to better reflect features at wavelengths related to the distances between altimetry tracks. |
format |
Article in Journal/Newspaper |
author |
Jeong Woo Kim Daniel R. Roman Bang-Yong Lee Yeadong Kim |
author_facet |
Jeong Woo Kim Daniel R. Roman Bang-Yong Lee Yeadong Kim |
author_sort |
Jeong Woo Kim |
title |
Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude Region |
title_short |
Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude Region |
title_full |
Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude Region |
title_fullStr |
Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude Region |
title_full_unstemmed |
Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude Region |
title_sort |
altimetry enhanced free-air gravity anomalies in the high latitude region |
publisher |
Springer |
publishDate |
2008 |
url |
https://doaj.org/article/f90e14fb7aea4816aa2200ac5fac8afc |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea |
genre_facet |
Arctic Barents Sea |
op_source |
Terrestrial, Atmospheric and Oceanic Sciences, Vol 19, Iss 1, p 111 (2008) |
op_relation |
http://tao.cgu.org.tw/images/attachments/v191-2p111.pdf https://doaj.org/toc/1017-0839 https://doaj.org/toc/2311-7680 1017-0839 2311-7680 10.3319/TAO.2008.19.1-2.111(SA) https://doaj.org/article/f90e14fb7aea4816aa2200ac5fac8afc |
_version_ |
1766336353256079360 |