Evaluation of the Global Altimetric Marine Gravity Field DTU15: Using Marine Gravity and GOCE Satellite Gravity

O. Andersen*, P. Knudsen, S. Kenyon, S. Holmes, John K. Factor

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Global marine gravity field modelling using satellite altimetry has been undergoing constant improvement since the launch of Cryosat-2 mission in 2010. With its 369 day-repeat Cryosat-2 provides one repeat of geodetic mission data with 8 km global resolution each year. Together with the completion of the Jason-1 end-of-life geodetic mission in 2011 and 2012, these new satellites has provided more than 4 times three times as much geodetic missions altimetric sea surface height observations than ever before. The higher precision of these new sea surface height observations compared with observations from ERS-1 and Geosat results in a dramatic improvement of the shorter wavelength of the gravity field (12–20 km) resulting in much favorable comparison with marine gravity. The pan-Arctic altimetric gravity field now surpassing 2008 Arctic Gravity Field project derived from multiple gravity field sources. A direct comparison between Arctic marine gravity fields and independent gravity field from the Gravity Field and Steady-State Ocean Circulation Explorer to degree and order 280 confirms this.
Original languageEnglish
Title of host publicationInternational Symposium on Advancing Geodesy in a Changing World - Proceedings of the IAG Scientific Assembly, 2017
EditorsLaura Sánchez, Jeffrey T. Freymueller
PublisherSpringer
Publication date2019
Pages77-81
ISBN (Print)9783030129149
DOIs
Publication statusPublished - 2019
EventInternational Symposium on Advancing Geodesy in a Changing World - Kobe, Japan
Duration: 30 Jul 20174 Aug 2017

Conference

ConferenceInternational Symposium on Advancing Geodesy in a Changing World
CountryJapan
CityKobe
Period30/07/201704/08/2017
SeriesInternational Association of Geodesy Symposia
Volume149
ISSN0939-9585

Keywords

  • GOCE
  • Marine gravity
  • Satellite altimetry

Cite this

Andersen, O., Knudsen, P., Kenyon, S., Holmes, S., & Factor, J. K. (2019). Evaluation of the Global Altimetric Marine Gravity Field DTU15: Using Marine Gravity and GOCE Satellite Gravity. In L. Sánchez, & J. T. Freymueller (Eds.), International Symposium on Advancing Geodesy in a Changing World - Proceedings of the IAG Scientific Assembly, 2017 (pp. 77-81). Springer. International Association of Geodesy Symposia, Vol.. 149 https://doi.org/10.1007/1345_2018_52
Andersen, O. ; Knudsen, P. ; Kenyon, S. ; Holmes, S. ; Factor, John K. / Evaluation of the Global Altimetric Marine Gravity Field DTU15: Using Marine Gravity and GOCE Satellite Gravity. International Symposium on Advancing Geodesy in a Changing World - Proceedings of the IAG Scientific Assembly, 2017. editor / Laura Sánchez ; Jeffrey T. Freymueller. Springer, 2019. pp. 77-81 (International Association of Geodesy Symposia, Vol. 149).
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abstract = "Global marine gravity field modelling using satellite altimetry has been undergoing constant improvement since the launch of Cryosat-2 mission in 2010. With its 369 day-repeat Cryosat-2 provides one repeat of geodetic mission data with 8 km global resolution each year. Together with the completion of the Jason-1 end-of-life geodetic mission in 2011 and 2012, these new satellites has provided more than 4 times three times as much geodetic missions altimetric sea surface height observations than ever before. The higher precision of these new sea surface height observations compared with observations from ERS-1 and Geosat results in a dramatic improvement of the shorter wavelength of the gravity field (12–20 km) resulting in much favorable comparison with marine gravity. The pan-Arctic altimetric gravity field now surpassing 2008 Arctic Gravity Field project derived from multiple gravity field sources. A direct comparison between Arctic marine gravity fields and independent gravity field from the Gravity Field and Steady-State Ocean Circulation Explorer to degree and order 280 confirms this.",
keywords = "GOCE, Marine gravity, Satellite altimetry",
author = "O. Andersen and P. Knudsen and S. Kenyon and S. Holmes and Factor, {John K.}",
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language = "English",
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Andersen, O, Knudsen, P, Kenyon, S, Holmes, S & Factor, JK 2019, Evaluation of the Global Altimetric Marine Gravity Field DTU15: Using Marine Gravity and GOCE Satellite Gravity. in L Sánchez & JT Freymueller (eds), International Symposium on Advancing Geodesy in a Changing World - Proceedings of the IAG Scientific Assembly, 2017. Springer, International Association of Geodesy Symposia, vol. 149, pp. 77-81, International Symposium on Advancing Geodesy in a Changing World, Kobe, Japan, 30/07/2017. https://doi.org/10.1007/1345_2018_52

Evaluation of the Global Altimetric Marine Gravity Field DTU15: Using Marine Gravity and GOCE Satellite Gravity. / Andersen, O.; Knudsen, P.; Kenyon, S.; Holmes, S.; Factor, John K.

International Symposium on Advancing Geodesy in a Changing World - Proceedings of the IAG Scientific Assembly, 2017. ed. / Laura Sánchez; Jeffrey T. Freymueller. Springer, 2019. p. 77-81 (International Association of Geodesy Symposia, Vol. 149).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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AU - Kenyon, S.

AU - Holmes, S.

AU - Factor, John K.

PY - 2019

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N2 - Global marine gravity field modelling using satellite altimetry has been undergoing constant improvement since the launch of Cryosat-2 mission in 2010. With its 369 day-repeat Cryosat-2 provides one repeat of geodetic mission data with 8 km global resolution each year. Together with the completion of the Jason-1 end-of-life geodetic mission in 2011 and 2012, these new satellites has provided more than 4 times three times as much geodetic missions altimetric sea surface height observations than ever before. The higher precision of these new sea surface height observations compared with observations from ERS-1 and Geosat results in a dramatic improvement of the shorter wavelength of the gravity field (12–20 km) resulting in much favorable comparison with marine gravity. The pan-Arctic altimetric gravity field now surpassing 2008 Arctic Gravity Field project derived from multiple gravity field sources. A direct comparison between Arctic marine gravity fields and independent gravity field from the Gravity Field and Steady-State Ocean Circulation Explorer to degree and order 280 confirms this.

AB - Global marine gravity field modelling using satellite altimetry has been undergoing constant improvement since the launch of Cryosat-2 mission in 2010. With its 369 day-repeat Cryosat-2 provides one repeat of geodetic mission data with 8 km global resolution each year. Together with the completion of the Jason-1 end-of-life geodetic mission in 2011 and 2012, these new satellites has provided more than 4 times three times as much geodetic missions altimetric sea surface height observations than ever before. The higher precision of these new sea surface height observations compared with observations from ERS-1 and Geosat results in a dramatic improvement of the shorter wavelength of the gravity field (12–20 km) resulting in much favorable comparison with marine gravity. The pan-Arctic altimetric gravity field now surpassing 2008 Arctic Gravity Field project derived from multiple gravity field sources. A direct comparison between Arctic marine gravity fields and independent gravity field from the Gravity Field and Steady-State Ocean Circulation Explorer to degree and order 280 confirms this.

KW - GOCE

KW - Marine gravity

KW - Satellite altimetry

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M3 - Article in proceedings

SN - 9783030129149

T3 - International Association of Geodesy Symposia

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BT - International Symposium on Advancing Geodesy in a Changing World - Proceedings of the IAG Scientific Assembly, 2017

A2 - Sánchez, Laura

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PB - Springer

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Andersen O, Knudsen P, Kenyon S, Holmes S, Factor JK. Evaluation of the Global Altimetric Marine Gravity Field DTU15: Using Marine Gravity and GOCE Satellite Gravity. In Sánchez L, Freymueller JT, editors, International Symposium on Advancing Geodesy in a Changing World - Proceedings of the IAG Scientific Assembly, 2017. Springer. 2019. p. 77-81. (International Association of Geodesy Symposia, Vol. 149). https://doi.org/10.1007/1345_2018_52