Scopus has released its 2013 Journal Metrics which provide alternative views of a journal's citation impact and are freely available online. The metrics include the Source Normalized Impact per Paper (SNIP) which measures contextual citation impact normalized for a journal's field, and the SCImago Journal Rank (SJR) which considers the prestige and reputation of citing journals in its ranking. Both metrics use Scopus citation data and were developed by external bibliometric groups. More details on the metrics and journal-level data can be found on the Journal Metrics website.

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ganesh dash <ganeshdash@gmail.com>
Scopus releases 2013 Journal Metrics
Elsevier Scopus <scopus@mail.elsevier.com> Sat, Jul 26, 2014 at 10:16 PM
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Scopus releases 2013 Journal Metrics
Dear Mr. Dash,
Elsevier is pleased to announce the release of the 2013 Journal Metrics based on
Scopus data.
The metrics provide alternative, transparent and accurate views of the citation impact a
journal makes, and are all available for free download at www.journalmetrics.com. The
impact metrics are based on methodologies developed by external bibliometricians and
use Scopus as the data source. Scopus is the largest citation database of peer-reviewed
literature and features tools to track, analyze and visualize research output.
Source Normalized Impact per Paper (SNIP)
SNIP measures contextual citation impact by weighting citations based on the total
number of citations in a subject field. The impact of a single citation is given higher value
in subject areas where citations are less likely, and vice versa. As a field-normalized
metric SNIP offers researchers, authors and librarians the ability to benchmark and
compare journals from different subject areas. A component of the SNIP calculation is the
raw Impact per Publication (IPP) which measures the ratio of citations per article
published in the journal.
Learn more
SCImago Journal Rank (SJR)
SJR is a prestige metric based on the idea that ‘all citations are not created equal’. With

2. 7/28/2014 Gmail - Scopus releases 2013 Journal Metrics
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SJR, the subject field, quality and reputation of the journal have a direct effect on the
value of a citation. It is a size-independent indicator and it ranks journals by their ‘average
prestige per article’ and can be used for journal comparisons in the scientific evaluation
process.
Learn more
The SNIP is developed by Leiden University's Centre for Science & Technology Studies
(CWTS). The SJR is developed by the SCImago research group in Spain.
More information, including a downloadable file with all journal metrics, can be found on
www.journalmetrics.com
The Elsevier Scopus team
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