Special Topic: Planetary Exploration> Top 20 Nations
Published May 2011
Authors | Institutions | Journals | Nations
Top 20 Nations
Of the nations making a strong commitment to planetary science, it is natural that the US heads the list. France probably has the largest community of professional planetary scientists outside the US, and the ESA headquarters are in Paris. Four European nations—France, the UK, Germany, and Italy—collectively outweigh the US in terms of citations (55,264) but lag with respect to numbers of papers (3,946).
When nations are ranked by citations per paper a very different order results, with one exception. Just 40 papers from Norway gave it the highest number of citations per paper. One surprise in this list is France, the only nation to feature in the top three on the trio of lists.
- Citations
- Papers
- Citations Per Paper
- About the Nations
- Overall General Information
- Additional Information
Citations
| Rank | Nations | Citations | Papers | Cites per paper |
|---|---|---|---|---|
| 1 | USA | 54,427 | 4,956 | 10.98 |
| 2 | France | 21,676 | 1,522 | 14.24 |
| 3 | United Kingdom | 13,210 | 1,121 | 11.78 |
| 4 | Germany | 13,154 | 1,121 | 11.73 |
| 5 | Italy | 7,224 | 682 | 10.59 |
| 6 | Japan | 3,578 | 418 | 8.56 |
| 7 | Russia | 3,318 | 449 | 7.39 |
| 8 | Austria | 2,844 | 232 | 12.26 |
| 9 | Sweden | 2,718 | 227 | 11.97 |
| 10 | Canada | 2,668 | 240 | 11.12 |
| 11 | Spain | 2,614 | 280 | 9.34 |
| 12 | Peoples R China | 2,605 | 445 | 5.85 |
| 13 | Netherlands | 2,480 | 305 | 8.13 |
| 14 | Switzerland | 2,412 | 204 | 11.82 |
| 15 | Finland | 1,937 | 145 | 13.36 |
| 16 | Belgium | 1,560 | 177 | 8.81 |
| 17 | Hungary | 1,213 | 90 | 13.48 |
| 18 | Poland | 1,187 | 136 | 8.73 |
| 19 | Australia | 1,153 | 148 | 7.79 |
| 20 | Norway | 964 | 40 | 24.10 |
Papers
| Rank | Nations | Citations | Papers | Cites per paper |
|---|---|---|---|---|
| 1 | USA | 54,427 | 4,956 | 10.98 |
| 2 | France | 21,676 | 1,522 | 14.24 |
| 3 | Germany | 13,154 | 1,121 | 11.73 |
| 4 | United Kingdom | 13,210 | 1,121 | 11.78 |
| 5 | Italy | 7,224 | 682 | 10.59 |
| 6 | Russia | 3,318 | 449 | 7.39 |
| 7 | Peoples R China | 2,605 | 445 | 5.85 |
| 8 | Japan | 3,578 | 418 | 8.56 |
| 9 | Netherlands | 2,480 | 305 | 8.13 |
| 10 | Spain | 2,614 | 280 | 9.34 |
| 11 | Canada | 2,668 | 240 | 11.12 |
| 12 | Austria | 2,844 | 232 | 12.26 |
| 13 | Sweden | 2,718 | 227 | 11.97 |
| 14 | Switzerland | 2,412 | 204 | 11.82 |
| 15 | Belgium | 1,560 | 177 | 8.81 |
| 16 | Australia | 1,153 | 148 | 7.79 |
| 17 | Finland | 1,937 | 145 | 13.36 |
| 18 | Poland | 1,187 | 136 | 8.73 |
| 19 | Brazil | 845 | 104 | 8.13 |
| 20 | Mexico | 422 | 92 | 4.49 |
Cites Per Paper (>= 7 paper threshold)
| Rank | Nations | Citations | Papers | Cites per paper |
|---|---|---|---|---|
| 1 | Norway | 964 | 40 | 24.10 |
| 2 | Chile | 855 | 48 | 17.81 |
| 3 | France | 21,676 | 1,522 | 14.24 |
| 4 | Hungary | 1,213 | 90 | 13.48 |
| 5 | Finland | 1,937 | 145 | 13.36 |
| 6 | New Zealand | 388 | 30 | 12.93 |
| 7 | Austria | 2,844 | 232 | 12.26 |
| 8 | Sweden | 2,718 | 227 | 11.97 |
| 9 | Switzerland | 2,412 | 204 | 11.82 |
| 10 | United Kingdom | 13,210 | 1,121 | 11.78 |
| 11 | Germany | 13,154 | 1,121 | 11.73 |
| 12 | Slovakia | 281 | 24 | 11.71 |
| 13 | Ireland | 617 | 53 | 11.64 |
| 14 | Israel | 807 | 71 | 11.37 |
| 15 | Canada | 2,668 | 240 | 11.12 |
| 16 | USA | 54,505 | 4,965 | 10.98 |
| 17 | Italy | 7,224 | 682 | 10.59 |
| 18 | Taiwan | 760 | 79 | 9.62 |
| 19 | Portugal | 800 | 85 | 9.41 |
| 20 | Spain | 2,614 | 280 | 9.34 |
About The Nations
The resulting database contained 97 nations. Ranked by three separate
measures: citations, papers, and citations per paper. Source dates: January
1, 2001-March 18, 2011. *Unless otherwise specified, all rankings have a
>= 5 paper threshold for all measures.
Look for complelte threshold information for the Special Topic of Planetary Exploration in the "Methodology & Threshold" tab of the opening page for this topic.
Overall General Information
Top 20 Scientists, Institutions, Journals, & Nations
Citation tables allow us to map compelling trends:
- Are there particular nations or institutions that might be expected to dominate research in the Topic area, and do the numbers bear out these expectations, or are there surprises?
- Who are the leading scientists and where are they located?
While these tables cannot offer a complete picture, the number of trends and anomalies that can be spotlighted or connected across categories is striking. The tables often lead to renewed perspectives to further explore and validate.
What are Special Topics?
Special Topics, from ScienceWatch.com, is designed to complement Essential Science IndicatorsSM from Clarivate in providing citation analyses and commentary for selected scientific research areas that have experienced notable recent advances or are of special current interest.
Read about the overall methodology for Special Topics in the "What are Special Topics?" page.
Planetary Exploration
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The Hubble Space Telescope stands tall in the cargo bay of the space shuttle Atlantis following its capture on Wednesday, May 13, 2009. Photo from NASA, and HUBBLESITE.
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