This map shows the geographic impact of P. D. Spudis'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 P. D. Spudis with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. D. Spudis more than expected).
This network shows the impact of papers produced by P. D. Spudis. 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 P. D. Spudis. The network helps show where P. D. Spudis may publish in the future.
Co-authorship network of co-authors of P. D. Spudis
This figure shows the co-authorship network connecting the top 25 collaborators of P. D. Spudis.
A scholar is included among the top collaborators of P. D. Spudis 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 P. D. Spudis. P. D. Spudis is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Spudis, P. D., P. O. Hayne, J. T. S. Cahill, et al.. (2016). Evidence for Possible Low-Density Regolith at the Lunar Poles. LPI. 2426.1 indexed citations
3.
Thompson, T. W., et al.. (2012). Modeling of Radar Backscatter from Icy and Rough Lunar Craters. Lunar and Planetary Science Conference. 1069.4 indexed citations
4.
Bussey, D. B. J., et al.. (2009). Illumination and Temperature Modelling of the Lunar Polar Regions. 40. 2027.2 indexed citations
5.
Hawke, B. R., T. A. Giguere, D. T. Blewett, et al.. (2006). Ancient Volcanism in the Schiller-Schickard Region of the Moon. LPI. 1516.2 indexed citations
6.
Spudis, P. D., et al.. (2004). The Composition of the Lunar Megaregolith: Some Initial Results from Global Mapping. LPI. 1512.1 indexed citations
7.
Bussey, D. B. J., et al.. (2003). Permanent Shadow in Simple Craters near the Lunar Poles. LPI. 1897.
8.
Hawke, B. R., et al.. (2001). Lunar Anorthosite: A Global Layer. LPI. 1592.2 indexed citations
9.
Spudis, P. D., D. B. J. Bussey, & B. R. Hawke. (1999). Deposits of the Imbrium Basin: Montes Alpes and Caucasus. LPI. 1348.1 indexed citations
10.
Spudis, P. D., et al.. (1998). The Clementine Bistatic Radar Experiment: Evidence for Ice on the Moon. Solar System Research. 32(1). 17–22.7 indexed citations
11.
Spudis, P. D., et al.. (1997). Crisium Basin Geology from Clementine Data. Lunar and Planetary Science Conference. 1361.2 indexed citations
12.
Hawke, B. R., C. R. Coombs, L. R. Gaddis, et al.. (1997). Remote Sensing Studies of Geologic Units in the Eastern Nectaris Region of the Moon. Lunar and Planetary Science Conference. 529.2 indexed citations
13.
Spudis, P. D., B. R. Hawke, P. G. Lucey, G. J. Taylor, & K. R. Stockstill. (1996). Composition of the Ejecta Deposits of Selected Lunar Basins from Clementine Elemental Maps. LPI. 27. 1255.10 indexed citations
14.
Hawke, B. R., et al.. (1996). Anorthosite on the Lunar Nearside and Farside. LPI. 27. 1025.5 indexed citations
15.
Bussey, D. B. J. & P. D. Spudis. (1996). A Compositional Study of Lunar Sinuous Rilles. LPI. 27. 183.1 indexed citations
16.
Lucey, P. G., G. J. Taylor, B. R. Hawke, & P. D. Spudis. (1996). Iron and Titanium Concentrations in South Pole-Aitken Basin: Implications for Lunar Mantle Composition and Basin Formation. 27. 783–784.3 indexed citations
17.
Hawke, B. R., et al.. (1995). Remote Sensing Studies of Lunar Anorthosite Deposits. LPI. 26. 563.1 indexed citations
18.
Hawke, B. R., et al.. (1992). The Distribution and Modes of Occurrence of Lunar Anorthosite. Lunar and Planetary Science Conference. 23. 505.8 indexed citations
19.
Hawke, B. R., P. G. Lucey, J. F. Bell, et al.. (1985). Spectral Studies of the Highlands around the Nectaris Basin: Preliminary Results. LPI. 329–330.1 indexed citations
20.
Schultz, P. H. & P. D. Spudis. (1979). Evidence for Ancient Lunar Basalts. LPI. 1084–1086.2 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.