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
Clarivate.
This database, currently covering the period January 1999 through
February 28, 2009, surveys only journal articles (original research
reports and review articles) indexed by Clarivate. Articles are
assigned to a category based on the journals in which they were
published and Clarivate’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.