Different Representations of the Time Variable Gravity Field to Reduce the Aliasing Problem in GRACE Data Analysis

Torsten Mayer-Gürr; Enrico Kurtenbach; Annette Eicker

doi:10.1007/978-3-642-22078-4_43

Different Representations of the Time Variable Gravity Field to Reduce the Aliasing Problem in GRACE Data Analysis

Torsten Mayer-Gürr^*, Enrico Kurtenbach, Annette Eicker

^*Corresponding author for this work

Abstract

The projected accuracy of the GRACE satellite mission has not been reached yet. One reason among others is the inaccurate modelling of the temporal variations in the analysis procedure by monthly or weekly mean fields, which can be shown in a simple simulation scenario. Two approaches to improve the temporal modeling are presented here: on the one hand the representation in terms of continuous temporal basis functions and on the other hand the increase of the temporal resolution to daily gravity field solutions by the use of the Kalman filter approach.

Original language	English
Title of host publication	VII Hotine-Marussi Symposium on Mathematical Geodesy
Subtitle of host publication	Proceedings of the Symposium in Rome, 6-10 June, 2009
Editors	Nico Sneeuw, Pavel Novák, Mattia Crespi, Fernando Sansò
Place of Publication	Berlin
Pages	285-290
Number of pages	6
ISBN (Electronic)	978-3-642-22078-4
DOIs	https://doi.org/10.1007/978-3-642-22078-4_43
Publication status	Published - 2012
Externally published	Yes
Event	7th Hotine-Marussi Symposium on Mathematical Geodesy - Rome, Italy Duration: 6 Jun 2009 → 10 Jun 2009

Publication series

Name	International Association of Geodesy Symposia
Publisher	Springer
Number	137
ISSN (Print)	0939-9585
ISSN (Electronic)	2197-9359

Conference

Conference	7th Hotine-Marussi Symposium on Mathematical Geodesy
Country/Territory	Italy
City	Rome
Period	6/06/09 → 10/06/09

Keywords

Aliasing
GRACE
Kalman filter
Time-variable gravity field

Access to Document

10.1007/978-3-642-22078-4_43

Cite this

Mayer-Gürr, T., Kurtenbach, E., & Eicker, A. (2012). Different Representations of the Time Variable Gravity Field to Reduce the Aliasing Problem in GRACE Data Analysis. In N. Sneeuw, P. Novák, M. Crespi, & F. Sansò (Eds.), VII Hotine-Marussi Symposium on Mathematical Geodesy: Proceedings of the Symposium in Rome, 6-10 June, 2009 (pp. 285-290). (International Association of Geodesy Symposia; No. 137).. https://doi.org/10.1007/978-3-642-22078-4_43

Mayer-Gürr, Torsten ; Kurtenbach, Enrico ; Eicker, Annette. / Different Representations of the Time Variable Gravity Field to Reduce the Aliasing Problem in GRACE Data Analysis. VII Hotine-Marussi Symposium on Mathematical Geodesy: Proceedings of the Symposium in Rome, 6-10 June, 2009. editor / Nico Sneeuw ; Pavel Novák ; Mattia Crespi ; Fernando Sansò. Berlin, 2012. pp. 285-290 (International Association of Geodesy Symposia; 137).

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title = "Different Representations of the Time Variable Gravity Field to Reduce the Aliasing Problem in GRACE Data Analysis",

abstract = "The projected accuracy of the GRACE satellite mission has not been reached yet. One reason among others is the inaccurate modelling of the temporal variations in the analysis procedure by monthly or weekly mean fields, which can be shown in a simple simulation scenario. Two approaches to improve the temporal modeling are presented here: on the one hand the representation in terms of continuous temporal basis functions and on the other hand the increase of the temporal resolution to daily gravity field solutions by the use of the Kalman filter approach.",

keywords = "Aliasing, GRACE, Kalman filter, Time-variable gravity field",

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doi = "10.1007/978-3-642-22078-4\_43",

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editor = "Sneeuw, \{Nico \} and Nov{\'a}k, \{Pavel \} and Crespi, \{Mattia \} and Sans{\`o}, \{Fernando \}",

booktitle = "VII Hotine-Marussi Symposium on Mathematical Geodesy",

note = "7th Hotine-Marussi Symposium on Mathematical Geodesy ; Conference date: 06-06-2009 Through 10-06-2009",

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Mayer-Gürr, T, Kurtenbach, E & Eicker, A 2012, Different Representations of the Time Variable Gravity Field to Reduce the Aliasing Problem in GRACE Data Analysis. in N Sneeuw, P Novák, M Crespi & F Sansò (eds), VII Hotine-Marussi Symposium on Mathematical Geodesy: Proceedings of the Symposium in Rome, 6-10 June, 2009. International Association of Geodesy Symposia, no. 137, Berlin, pp. 285-290, 7th Hotine-Marussi Symposium on Mathematical Geodesy, Rome, Italy, 6/06/09. https://doi.org/10.1007/978-3-642-22078-4_43

Different Representations of the Time Variable Gravity Field to Reduce the Aliasing Problem in GRACE Data Analysis. / Mayer-Gürr, Torsten; Kurtenbach, Enrico; Eicker, Annette.
VII Hotine-Marussi Symposium on Mathematical Geodesy: Proceedings of the Symposium in Rome, 6-10 June, 2009. ed. / Nico Sneeuw; Pavel Novák; Mattia Crespi; Fernando Sansò. Berlin, 2012. p. 285-290 (International Association of Geodesy Symposia; No. 137).

Research output: Chapter in Book (Inbook) /Conference Proceeding › Conference Paper › Research Article/Contribution › peer-review

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N2 - The projected accuracy of the GRACE satellite mission has not been reached yet. One reason among others is the inaccurate modelling of the temporal variations in the analysis procedure by monthly or weekly mean fields, which can be shown in a simple simulation scenario. Two approaches to improve the temporal modeling are presented here: on the one hand the representation in terms of continuous temporal basis functions and on the other hand the increase of the temporal resolution to daily gravity field solutions by the use of the Kalman filter approach.

AB - The projected accuracy of the GRACE satellite mission has not been reached yet. One reason among others is the inaccurate modelling of the temporal variations in the analysis procedure by monthly or weekly mean fields, which can be shown in a simple simulation scenario. Two approaches to improve the temporal modeling are presented here: on the one hand the representation in terms of continuous temporal basis functions and on the other hand the increase of the temporal resolution to daily gravity field solutions by the use of the Kalman filter approach.

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Mayer-Gürr T, Kurtenbach E, Eicker A. Different Representations of the Time Variable Gravity Field to Reduce the Aliasing Problem in GRACE Data Analysis. In Sneeuw N, Novák P, Crespi M, Sansò F, editors, VII Hotine-Marussi Symposium on Mathematical Geodesy: Proceedings of the Symposium in Rome, 6-10 June, 2009. Berlin. 2012. p. 285-290. (International Association of Geodesy Symposia; 137). doi: 10.1007/978-3-642-22078-4_43