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 ScienceWatch
Country Rankings in Space Science

This month from ScienceWatch.com, we have listed our ranking in space science by citations per paper—among countries that collected 10,000 or more citations during the period—to reveal weighted impact. Read more below.

Rank      Country Papers Citations Citations
Per
Paper
1 HUNGARY  761 16,925 22.24
2 SCOTLAND  2,219 48,429 21.82
3 ISRAEL  1,510 29,335 19.43
4 CANADA  5,469 102,326 18.71
5 CHILE  3,188 57,732 18.11
6 DENMARK  1,448 26,156 18.06
7 USA  53,561 961,779 17.96
8 NETHERLANDS  5,604 100,220 17.88
9 ENGLAND  15,376 270,290 17.58
10 AUSTRALIA  4,786 83,264 17.40
11 PORTUGAL  780 13,258 17.00
12 WALES  693 11,592 16.73
13 SWITZERLAND  2,821 46,973 16.65
14 GERMANY  16,905 279,586 16.54
15 ITALY  11,485 172,642 15.03
16 SWEDEN  2,065 30,374 14.71
17 FRANCE  13,519 187,830 13.89
18 SPAIN  6,709 88,979 13.26
19 JAPAN  8,423 107,886 12.81
20 POLAND  2,563 32,362 12.63

The data above were extracted from the Essential Science IndicatorsSM database from Thomson Reuters. This database, currently covering the period January 1999 through February 28, 2009, surveys only journal articles (original research reports and review articles) indexed by Thomson Reuters. Articles are assigned to a category based on the journals in which they were published and Thomson Reuters’s journal-to-category field definition scheme. Both articles tabulated and citation counts to those articles are for the period indicated.

Here our ranking in space science is by citations per paper—among nations that collected 10,000 or more citations during the period—to reveal weighted impact. For articles with multiple authors from different nations, each nation receives full, not fractional, citation credit. Essential Science Indicators lists nations ranked in the top 50% for a field over a given period, based on total citations. In space science, 68 nations are listed, meaning 136 were surveyed. 32 nations collected at least 10,000 citations during the period.
 



Country Profiles : 2009 : Country Rankings in Space Science, 1999-2009
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