“…The application of such techniques to real spaceborne and surface gravity data came only recently into fruition, e.g., Fengler et al (2004a,b) and Schmidt et al (2005aSchmidt et al ( ,b, 2006. Besides gravity field modeling, the application of scalar, vector and tensor spherical wavelets has become more and more popular in other fields of geodesy and geophysics, e.g., the analysis of measurements of the surface air temperature (Li 1999), the Earth's magnetic field (Holschneider et al 2003, Maier 2005, Panet et al 2005, the modeling of ionospheric currents (Mayer 2004), atmospheric flows (Fengler 2005) and oceanographic flows .…”