The contribution details a post-processing approach that used undifferentiated dual-
frequency pseudorange and carrier phase observations along with IGS procise orbit …

Abstract Since 1994, the International GNSS Service (IGS) has provided precise GPS orbit
products to the scientific community with increased precision and timeliness. Many national …

Within the framework of the Helmholtz Association Strategy Project ''GPS Atmosphere
Sounding''(GASP), an operational monitoring of integrated water vapor was established …

The International GPS Service (IGS) has provided GPS orbit products to the scientific
community with increased precision and timeliness. Many users interested in geodetic …

Global Positioning System (GPS) measurements to study regional deformation were initiated
in northern Cascadia in the late 1980s and early 1990s. On the basis of a decade of GPS …

Between 1994 and 2002, a series of experiments was conducted at Prudhoe Bay, Alaska,
aimed at the development of an effective 4D (or time-lapse) gravity technique. Theoretical …

We observe ocean tide loading (OTL) at diurnal and semi‐diurnal periods by directly
estimating fixed‐period harmonic motions within individual daily GPS analyses. Stacking of …

The continuous GPS stations of the Western Canada Deformation Array (WCDA) are subject
to movements due to the loading of the lithosphere by ocean tides. Using 4 weeks of …

Abstract The Global Positioning System (GPS) enables precise and accurate determination
of position anywhere on anywhere on the Earth, a boon to the field of geodesy. Although …

This thesis describes the research results in the improvement of a new GPS processing
approach: precise point positioning (PPP). Currently, PPP is implemented with the so-called …