[Geoinfo] Impact Factor Release 2009

[Victor A. Ramos]

IMPACT FACTOR JSAES

Para el conocimiento de la comunidad les envio el Impact factor del
Journal of South American Earth Sciences. Como podran observar la cantidad
de citas recibidas en los dos ultimos años ha pasado de 1107 a 1700. A
pesar de este aumento como se incrementó notablemente la cantidad de
trabajos publicados en los dos ultimos años el impacto cayo de 1,375 a
1.173. Van los números y la forma de cáculo utilizada:


Impact Factor and ranking of Journal of South American Earth Sciences
http://mail.elsevier-alerts.com/go.asp?/bESJ001/q8EOY12F/xTZN032F,
recently published by Thomson Reuters (Journal Citation Reports® 2010) are
as follows:

Journal Title:Journal of South American Earth Sciences
ISSN: 0895-9811
Rank/No. of Jnls. 2009 and 2008:
2009 - 84 of 153
2008 - 61 of 143

Total Cites 2009 & 2008:
2009 - 1,700
2008 - 1,107

Impact Factor 2009:
IF 2009 1.173
IF 2008 1.375

5 year Impact Factor:
2009 - 1.637
2008 - 1.519


The ranking http://mail.elsevier-rts.com/go.asp?/bESJ001/qQW6G12F/xTZN032F
given above is that for the category we believe is most relevant to your
journal based on the number of citations, cited and citing journals in the
past.

The five year impact factor
http://mail.elsevier-alerts.com/go.asp?/bESJ001/qZ5XP12F/xTZN032F
is similar in nature to the JCR Impact Factor, but instead of counting
citations in 2009 to the previous two years and dividing by source
itemshttp://mail.elsevier-alerts.com/go.asp?/bESJ001/qHWF712F/xTZN032F in
these years, citations are counted in 2009 to the previous five years and
again divided by the source items published in the previous five years.

The Journal Impact Factor, published by Thomson Reuters, is a measure of
the frequency with which the average article in a journal has been cited
in a particular year. For example, the 2009 Impact Factor is citations
received in 2009 to all articles published in 2008 and 2007, divided by
the number of "source items" published in 2008 and 2007.

There are various ways of assessing a journal, for information on other
journal measures, as well as more information on the Impact Factor please
consult: www.elsevier.com/editors/journalmeasures
http://mail.elsevier-alerts.com/go.asp?/bESJ001/qQ56P12F/xTZN032F


-- 
Victor A. Ramos
Laboratorio de Tectónica Andina
Universidad de Buenos Aires
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