Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
GipsyX/RTGx, a new tool set for space geodetic operations and research
2020246 citationsWilly Bertiger, Y. Bar-Sever et al.profile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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This map shows the geographic impact of Pascal Willis's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Pascal Willis with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Pascal Willis more than expected).
This network shows the impact of papers produced by Pascal Willis. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Pascal Willis. The network helps show where Pascal Willis may publish in the future.
Co-authorship network of co-authors of Pascal Willis
This figure shows the co-authorship network connecting the top 25 collaborators of Pascal Willis.
A scholar is included among the top collaborators of Pascal Willis based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Pascal Willis. Pascal Willis is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Teke, Kamil, Tobias Nilsson, Johannes Böhm, et al.. (2012). Zenith troposphere delays and gradients from VLBI, GNSS, DORIS, water vapor radiometer, and numerical weather models during continuous VLBI campaigns. Chalmers Publication Library (Chalmers University of Technology). 2012.1 indexed citations
4.
Willis, Pascal, et al.. (2010). Towards development of a consistent orbit series for TOPEX/Poseidon, Jason-1, and Jason-2. UCL Discovery (University College London).2 indexed citations
Coulot, David, et al.. (2009). Genetically Modified Networks: A Genetic Algorithm contribution to Space Geodesy. Application to the transformation of SLR and DORIS EOP time series into ITRF2005.. EGU General Assembly Conference Abstracts. 7988.
7.
Willis, Pascal, John Ries, Laurent Soudarin, N. P. Zelensky, & E. C. Pavlis. (2008). DPOD2005 : Realization of a DORIS terrestrial reference frame for precise orbit determination. cosp. 37. 3469.2 indexed citations
Haines, Bruce, et al.. (2003). Precise orbit determination for Jason-1: GPS and the 1-cm challenge. EGS - AGU - EUG Joint Assembly. 12378.5 indexed citations
14.
Nothnagel, A., et al.. (2003). EOP alignment campaign, IDS/IGS/ILRS/IVS EOP combinations, systematic errors. 30. 51–56.3 indexed citations
15.
Haines, Bruce, Willy Bertiger, S. D. Desai, et al.. (2002). Initial Orbit Determination Results for Jason-1: Towards a 1-cm Orbit. Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002). 2011–2021.8 indexed citations
16.
Willis, Pascal, Bruce Haines, Y. Bar-Sever, et al.. (2002). Topex/Jason combined GPS/DORIS orbit determination in the tandem phase. 34. 547.1 indexed citations
17.
Slater, James A., Pascal Willis, Gerhard Beutler, et al.. (1999). The International GLONASS Experiment (IGEX-98): Organization, Preliminary Results and Future Plans. 2293–2302.4 indexed citations
18.
Slater, James A., Pascal Willis, W. Gurtner, et al.. (1998). The International GLONASS Experiment (IGEX-98). 1637–1643.4 indexed citations
19.
Bertiger, Willy, Bruce Haines, H. J. Rim, et al.. (1993). The First Low Earth Orbiter with Precise GPS Positioning: Topex/Poseidon. 269–277.2 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.