Posters

2009

IDS Contribution to ITRF2008
Valette J.J., Yaya P., Soudarin L., Lemoine F.G., Ferrad P., Altamimi Z., Willis P., Stepanek P., Otten M., Govind R., Kuzin S., Le Bail K., Moore P.
American Geophysical Union, San Francisco, USA, 2009, EGU2009-7988, Geophys. Abstr., 11.

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Genetically Modified Networks, A Genetic Algorithm contricution to Space Geodesy, Application to the transformation of SLR and DORIS EOP time series into ITRF2005
Coulot D., Collilieux X., Pollet A., Berio P., Gobinddass M.L., Soudarin L., Willis P.
European Geoscience Union, Vienna, Autriche, Avril 2009, EGU2009-7988, Geophys. Abstr., 11.

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Genetically Modified Networks, A genetic algorithm contribution to Space Geodesy, Application to the transformation of the SLR and DORIS EOP time series into ITRF2005
Coulot D., Pollet A., Collilieux X., Deleflie F., Gobinddass M.L., Soudarin L., Willis P., Lemoine J.M., Capdeville H.
IAG Scientific Assembly, Buenos Aires, Argentine, Septembre 2009.

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Recent improvements in DORIS geodetic time series in view of ITRF2008
Gobinddass M.L., Willis P., de Viron O., Diament M.  
European Geoscience Union, Vienna, Austria, April 2009, EGU2009-7799, Geophys. Abstr., 11, poster, EGU2009-7399.

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Status of the DORIS contribution to ITRF2008
Valette J.J., Lemoine F.G., Willis P., Soudarin L., Stepanek P., Otten M., Govind R., Kuzin S., Le Bail K., Moore P., and the DORIS team
European Geoscience Union, Vienna, Austria, April 2009, EGU2009-3256, Geophys. Abstr., 11

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2008 

Geodetic Observation-level Modelling for the Measurement of GIA

Boehm J., Bos M., King M., Lidberg M., Mäkinen J., Mendes Cerveira P.J., Penna N., Schuh H., Steigenberger P., Vittuari L., Willis P. 
AGU Fall Meeting, San Francisco, USA, décembre 2008, poster, G31A-0647.

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Consistent multi-technique geodetic estimates of present-day contributions to regional mean sea level change
Clarke P., Moore P., Lavallée D., Tamisiea M., Hughes C., Gross R., Willis P., King M., Penna N.  
NERC Ocean 2025 annual meeting, Southampton, 27 mai 2008

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Detection and removal of periodic systematic errors in DORIS-derived geocenter variations
Gobinddass M.L., Willis  P.
Société Française d'Astronomie et d'Astrophysique, meeting, Paris, 30 June- 4 July 2008

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Detection and removal of periodic systematic errors in DORIS-derived geocenter variations
Gobinddass M.L., Willis  P., de Viron O.
Congrès des doctorants, 25-28 mars 2008

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Sub-centimeter SLR precision with the SLRF2005/LPOD2005 network
Zelensky N.P., Lemoine F.G., Rowlands D.D., Luthcke S.B., Chinn D.S., Beale J., Beckley B.D., Klosko S.M., Willis P., Luceri V.  
IDS Workshop, Nice, 12-14 novembre 2008

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2005 

International DORIS Service supporting Reference Frame maintenance
Granier J.P., Feissel-Vernier M., Lemoine F., Noll C., Ries J., Soudarin L., Tavernier G., Willis P.
EGU 2005, Vienne, Autriche, 24-29 avril 2005, EOS Trans (abstract), EGU05-A-05003.

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Stability of the DORIS-derived terrestrial scale
P. Willis, L. Soudarin, F. Lemoine
EGU 2005, Vienne, Autriche, 24-29 avril 2005, EGU05-A-02866, EOS Trans (abstract)

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2004 

GPS-based Precise Orbit Determination, Jason-1 Status and Prospects for 5mm on OSTM
Bertiger W., Desai S., Haines B., Willis P., Munson T.
Ocean Surface Topography Science team Meeting, St. Petersburgh, Floride, USA, 4-6 novembre 2004.

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Spatial and temporal variations of interseismic strain from monitoring CGPS and campaign data and seismic monitoring in the Himalaya
Bettinelli P., Avouac J.P., Flouzat M., Bollinger L., Willis P.
AGU Fall Meeting, San Francisco, USA, Décembre 2004, abstract G21A-0102, EOS Trans. AGU, 85(47).

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Preliminary results on the sensitivity to radiations of the back-up DORIS/Jason oscillator
Willis P.
Ocean Surface Topography Science team Meeting, St. Petersburgh, Floride, USA, 4-6 novembre 2004.

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Combination of GPS and DORIS data for troposphere and local tie studies
Willis P., Bar-Sever Y.E., Bertiger W.I., Byun S.Y.
AGU Fall Meeting, San Francisco, USA, 13-17 décembre 2004, EOS Trans. AGU, 85(47), poster G31A-0781.

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Combination of GPS and DORIS data for troposphere and local tie studies
Willis P., Ries J., Haines B.J., Morel L.
Ocean Surface Topography Science team Meeting, St. Petersburgh, Floride, USA, 4-6 novembre 2004.

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2003 

Precise Orbit Determination for JASON-1 : GPS and the 1-cm challenge
Haines B., Desai S., Willis P., Bertiger W., Munson T.
EGS/AGU meeting, Nice, Avril 2003, EAE03-A-12378, Geophysical Research Abstracts, Volume 5, 2003.

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Estimating tropospheric delays from DORIS data in a multi-satellite mode
Willis P., Bar-Sever Y.
EGS/AGU meeting, Nice, Avril 2003, EAE03-A-02771, Geophysical Research Abstracts, Volume 5, 2003.

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2002 

Evaluation of GPS-based orbits for the Jason-1 Mission with Application to Near Real-Time Sea Surface Heights
Desai S., Haines B., Bertiger W., Kuang D., Muellerschoen R., Willis P.
AGU Fall meeting, San Francisco, décembre 2002.

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Results from the Jason-1 BlackJack GPS Receiver: Towards a 1-cm Orbit
Haines B.J., Desai S., Willis P., Kuang D., Munson T., Bertiger W.
JASON Science Working Team meeting, New Orleans, poster, Octobre 2002.

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DORIS/JASON clock behavior assessment in the South Atlantic Anomaly region
Willis P., Haines B., Bar-Sever Y., Young L.
JASON Science Working Team meeting, New Orleans, poster, Octobre 2002.

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Current activities at the IGN/JPL DORIS data analysis center
Willis P., Bar-Sever Y., Bertiger W., Haines B., Kuang D., Muellerschoen R.
IDS Wokshop, Biarritz, France, Juin 2002.

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2001 

Present Mean Sea Level Indetermination coming rom ITRF Reference Frame uncertainties on TOPEX/POSEIDON orbits
Willis P. , L. Morel
JASON Science Working Team Meeting, Solvang, USA, December 2001.

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