Non-isotropic filtering of GRACE temporal gravity for geophysical signal enhancement

By Shin‐Chan Han, C. Shum, C. Jekeli, Chung-Yen Kuo, Clark R. Wilson, Ki-Weon Seo. 2005

175 citations recorded by the source corpus.

Subfields: Aerospace Engineering, Molecular Biology, Oceanography

View Paper: https://www.semanticscholar.org/paper/c491b1d8d8bda9cb5f729a7d5b86ddeebd6c5956

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Aerospace Engineering

1. Jürgen Kusche
2. S. Swenson
3. John M. Wahr
4. Isabella Velicogna

In Molecular Biology

1. Jürgen Kusche
2. John M. Wahr
3. S. Swenson
4. C. Shum
5. P. Ditmar
6. Junyi Guo
7. W. V. D. Wal
8. Xiaojun Duan

In Oceanography

1. Jürgen Kusche
2. S. Swenson
3. John M. Wahr
4. P. Ditmar
5. C. Shum
6. Junyi Guo
7. W. V. D. Wal
8. Xiaojun Duan

Citations in the corpus

• Approximate decorrelation and non-isotropic smoothing of time-variable GRACE-type gravity field models (2007, methodology): “Negative sidelobes also exist for the kernel designed by Swenson and Wahr (2006, cf. Fig. 4). This is a clear difference to the non-isotropic Gaussian proposed by Han et al. (2005) , which will always result in positive weights in all directions.”
• The design of an optimal filter for monthly GRACE gravity models (2008, background): “AS-type filters and IS-type filters have been suggested by many authors, though the objective function they minimize is different, unknown, or simply does not exist (e.g. Wahr et al. 1998; Swenson & Wahr 2002; Han et al. 2005; Swenson & Wahr 2006; Seo et al. 2006).”
• Source parameter inversion for recent great earthquakes from a decade‐long observation of global gravity fields (2013, methodology): “GRACE satellites measure the gravity change in the N-S direction (controlled by Mrθ) much better than in the E-W direction (controlled by Mrf) due to their better sampling of along track orbit perturbation [Han et al., 2005].”
• On the postprocessing removal of correlated errors in GRACE temporal gravity field solutions (2009, methodology): “Hence, in practical application, the GRACE results have to be smoothed (e.g., Jekeli 1981; Wahr et al. 1998; Han et al. 2005; Guo et al. 2009).”
• Post‐processing removal of correlated errors in GRACE data (2006, methodology): “…been proposed to smooth GRACE data: an isotropic Gaussian filter [Wahr et al., 1998], an anisotropic filter based on the calibrated error spectrum [Han et al., 2005], and optimal filters based on a priori estimates of signal and measurement error variances [Swenson and Wahr, 2002; Seo andWilson,…”