Contributions of terrestrial and GRACE data to the study of the secular geoid changes in North America

Joint inversion estimate of regional glacial isostatic adjustment in Antarctica considering a lateral varying Earth structure (ESA STSE Project REGINA)

“…due to evolving orbital sampling patterns, information on time-dependent error levels is introduced by monthdependent weighting in the estimation of the linear trends (e.g. Rangelova & Sideris, 2008).…”

Impact of the North Atlantic Oscillation on Southern Europe Water Distribution: Insights from Geodetic Data

“…A PC mode is thus the combination of a time series and a map, with the eigenvalue of the PC associated with a percentage of variance explained. This method has been intensively used in climate studies (e.g., von Storch and Zwiers 1999) and, more recently, in geodesy and gravimetry studies for its ability to retrieve a common signal in a set of noisy time series (Chambers 2006;de Viron et al 2006;Schrama et al 2007;de Viron et al 2008;Rangelova and Sideris 2008;Zerbini et al 2008;Rieser et al 2010;Mandea et al 2012). …”

Significance of secular trends of mass variations determined from GRACE solutions

“…Previous studies showed that significant temporal gravity field variations can be recovered from the GRACE monthly solutions, provided that adequate filters are employed (see e. g. Chambers et al, 2007;Crowley et al, 2007;Morison et al, 2007;Niu et al, 2007;Rangelova et al, 2007;Swenson and Wahr, 2007;Tamisiea et al, 2007;Barletta et al, 2008;Rangelova and Sideris, 2008;Steffen et al, 2008Steffen et al, , 2009avan der Wal et al, 2008). Independent studies focusing on a specific region of interest, however, resulted in different estimations of mass variations.…”