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More Accurate and Faster Available CHAMP and GRACE Gravity Fields for the User Community Read chapter Read first chapter

2010 | OriginalPaper | Chapter

Surface Mass Variability from GRACE and Hydrological Models: Characteristic Periods and the Reconstruction of Significant Signals

Authors : Svetozar Petrovic, Roland Braun, Franz Barthelmes, Johann Wünsch, Jürgen Kusche, Rico Hengst

Published in: System Earth via Geodetic-Geophysical Space Techniques

Publisher: Springer Berlin Heidelberg

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Abstract

In order to analyse spatio-temporal variations of surface mass anomalies induced by hydrological mass redistributions at the Earth’s surface we use products from the Gravity Recovery and Climate Experiment (GRACE) satellite mission as well as global hydrological models. As a novelty we identify dominant periodic patterns that are not restricted to the fundamental annual frequency and its overtones, using a method that combines conventional Principal Components Analysis (PCA) with a determination of sine waves of arbitrary periods from the principal components. We assess the significance of the derived spectra taking into account correlated errors of the GRACE data by means of a Monte-Carlo technique. This allows us to create filtered GRACE time series including only the significant terms, which serve for basin-specific calibration of hydrological models with respect to the dominant periodic water storage variations.

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previous chapter Continental Water Storage Variations from GRACE Time-Variable Gravity Data
next chapter Time-Space Multiscale AnalysisTime-Space Multiscale Analysis Multiscale analysis and Its Application to GRACE and Hydrology Data
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Metadata
Title
Surface Mass VariabilitySurface mass variability from GRACE and Hydrological Models Hydrological model : Characteristic PeriodsPeriods characteristic and the Reconstruction of Significant SignalsReconstruction of significant signals
Authors
Svetozar Petrovic
Roland Braun
Franz Barthelmes
Johann Wünsch
Jürgen Kusche
Rico Hengst
Copyright Year
2010
Publisher
Springer Berlin Heidelberg
Book
System Earth via Geodetic-Geophysical Space Techniques

Print ISBN: 978-3-642-10227-1

Electronic ISBN: 978-3-642-10228-8

Copyright Year: 2010

DOI
https://doi.org/10.1007/978-3-642-10228-8_32

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