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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Chinese Geoscience Union
2008-01-01
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http://tao.cgu.org.tw/images/attachments/v191-2p111.pdf
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doaj-f90e14fb7aea4816aa2200ac5fac8afc2020-11-24T22:15:56ZengChinese Geoscience UnionTerrestrial, Atmospheric and Oceanic Sciences1017-08392311-76802008-01-0119111110.3319/TAO.2008.19.1-2.111(SA)Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude RegionJeong Woo KimDaniel R. RomanBang-Yong LeeYeadong KimAvailable 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. http://tao.cgu.org.tw/images/attachments/v191-2p111.pdf Altimetry-derived gravity anomalyBarents SeaERS-1 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jeong Woo Kim Daniel R. Roman Bang-Yong Lee Yeadong Kim |
spellingShingle |
Jeong Woo Kim Daniel R. Roman Bang-Yong Lee Yeadong Kim Altimetry Enhanced Free-Air Gravity Anomalies in the High Latitude Region Terrestrial, Atmospheric and Oceanic Sciences Altimetry-derived gravity anomaly Barents Sea ERS-1 |
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 |
Chinese Geoscience Union |
series |
Terrestrial, Atmospheric and Oceanic Sciences |
issn |
1017-0839 2311-7680 |
publishDate |
2008-01-01 |
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. |
topic |
Altimetry-derived gravity anomaly Barents Sea ERS-1 |
url |
http://tao.cgu.org.tw/images/attachments/v191-2p111.pdf
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work_keys_str_mv |
AT jeongwookim altimetryenhancedfreeairgravityanomaliesinthehighlatituderegion AT danielrroman altimetryenhancedfreeairgravityanomaliesinthehighlatituderegion AT bangyonglee altimetryenhancedfreeairgravityanomaliesinthehighlatituderegion AT yeadongkim altimetryenhancedfreeairgravityanomaliesinthehighlatituderegion |
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1725792219314520064 |