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  1. Article

    Open Access

    Local gravity from Lunar Prospector tracking data: Results for Mare Serenitatis

    High-resolution gravity anomalies on the surface of the Moon are determined from Lunar Prospector tracking data residuals. By means of a benchmark test the recovery method is validated with respect to the orbi...

    S. Goossens, P. N. A. M. Visser, K. Heki, B. A. C. Ambrosius in Earth, Planets and Space (2005)

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  2. No Access

    Article

    Insight into the 2004 Sumatra–Andaman earthquake from GPS measurements in southeast Asia

    Data collected at ∼60 Global Positioning System (GPS) sites in southeast Asia show the crustal deformation caused by the 26 December 2004 Sumatra–Andaman earthquake at an unprecedented large scale. Small but s...

    C. Vigny, W. J. F. Simons, S. Abu, Ronnachai Bamphenyu, Chalermchon Satirapod… in Nature (2005)

  3. No Access

    Article

    Recent Geodetic Results in the Azores Triple Junction Region

    —GPS (Global Positioning System) observations started to be carried out in the Azores region under the scope of the TANGO (TransAtlantic Network for Geodesy and Oceanography) project in 1988. The measurements ...

    R. M. S. Fernandes, L. Bastos, B. A. C. Ambrosius, R. Noomen… in pure and applied geophysics (2004)

  4. No Access

    Chapter

    Recent Geodetic Results in the Azores Triple Junction Region

    GPS (Global Positioning System) observations started to be carried out in the Azores region under the scope of the TANGO (TransAtlantic Network for Geodesy and Oceanography) project in 1988. The measurements c...

    R. M. S. Fernandes, L. Bastos, B. A. C. Ambrosius… in Geodynamics of Azores-Tunisia (2004)

  5. No Access

    Article

    Ocean tides from T/P, ERS-1, and GEOSAT altimetry

     Aliasing of the diurnal and semi-diurnal tides is a major problem when estimating the ocean tides from satellite altimetry. As a result of aliasing, the tides become correlated and many years of altimeter obs...

    A. J. E. Smith, B. A. C. Ambrosius, K. F. Wakker in Journal of Geodesy (2000)

  6. No Access

    Chapter and Conference Paper

    Geodynamics of S.E. Asia: First results of the Sulawesi 1998 GPS campaign

    In November 1998, concurrently with the third GPS campaign of the international GEODY5SEA (GEODYnamics of South and South East Asia) project, a dense geodetic network in Sulawesi, Indonesia was re-measured wit...

    W. J. F. Simons, D. van Loon, A. Walpersdorf, B. A. C. Ambrosius… in Geodesy Beyond 2000 (2000)

  7. No Access

    Chapter and Conference Paper

    An interdisciplinary approach to studying seismic hazard throughout Greece

    This paper describes and reviews the progress of a three year (11/97–11/00) European Commission FP4 (Climate and Natural Hazards) funded project entitled GPS Seismic Hazard in Greece (SING), A major internatio...

    P. R. Cruddace, P. A. Cross, G. Veis, H. Billiris, D. Paradissis… in Geodesy Beyond 2000 (2000)

  8. No Access

    Article

    Comparison between the harmonic and response methods of tidal analysis using TOPEX/POSEIDON altimetry

    Three years of TOPEX/POSEIDON altimeter data have been processed at Delft Institute for Earth-Oriented Space Research (DEOS) to solve the major diurnal and semi-diurnal constituents of the global ocean tide u...

    A. J. E. Smith, B. A. C. Ambrosius, K. F. Wakker, P. L. Woodworth… in Journal of Geodesy (1997)

  9. No Access

    Article

    TOPEX/Poseidon orbit error assessment

    This paper discusses the accuracy of TOPEX/Poseidon orbits computed at Delft University, Section Space Research & Technology (DUT/SSR&T), from several types of tracking data,i.e. SLR, DORIS, and GPS. To quantify ...

    A. J. E. Smith, E. T. Hesper, D. C. Kuijper, G. J. Mets… in Journal of Geodesy (1996)

  10. No Access

    Article

    Analysis of the EUREF-89 GPS data from the SLR/VLBI sites

    In May 1989, the IAG Subcommission for the European Reference Frame organized a GPS measurement campaign, called EUREF-89, to establish a common European Reference Frame. During a 2-week period various types o...

    B. Overgaauw, B. A. C. Ambrosius, K. F. Wakker in Bulletin géodésique (1994)

  11. No Access

    Chapter and Conference Paper

    Determination of the Regional Geoid from Simulated GPS Measurements by the Aristoteles Solid-Earth Satellite

    ARISTOTELES orbits over a geographical area extending from 5 deg W to 25 deg E and 35 deg N to 65 deg N have been simulated using a spherical harmonic expansion of the earth’s gravity field complete to degree ...

    P. N. A. M. Visser, K. F. Wakker, B. A. C. Ambrosius in Determination of the Geoid (1991)

  12. No Access

    Chapter and Conference Paper

    First Results of WEGENER/MEDLAS Data Analysis

    The WEGENER/MEDLAS project is aimed at the determination of crustal deformations in the Mediterranean area, the region where the Eurasian, the African and the Arabic tectonic plates meet (Reinhart, 1985). The ...

    B. A. C. Ambrosius, R. Noomen, K. F. Wakker in Global and Regional Geodynamics (1990)