Scimago Journal & Country Rank


Country Canada  - SIR icon SIR Ranking of Canada
H Index
Subject Area and CategoryEarth and Planetary Sciences
Earth and Planetary Sciences (miscellaneous)
PublisherInternational Union of Geological Sciences
Publication typeJournals
Coverage1979-1989, 1996-ongoing
Scope Episodes is the official quarterly journal of the International Union of Geological Sciences (IUGS). It covers developments of regional and global importance in the earth sciences and is distributed worldwide in March, June, September, and December. From 1997, initially the former Chinese Ministry of Geology and Mineral Resources (MGMR) and then the Ministry of Land and Resources (MLR) has been providing editorial and production support. Whilst every care is taken in compiling the contents of Episodes, the MLR assumes no responsibility in effects arising therefrom.


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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Earth and Planetary Sciences (miscellaneous)1999Q1
Earth and Planetary Sciences (miscellaneous)2000Q1
Earth and Planetary Sciences (miscellaneous)2001Q1
Earth and Planetary Sciences (miscellaneous)2002Q1
Earth and Planetary Sciences (miscellaneous)2003Q1
Earth and Planetary Sciences (miscellaneous)2004Q1
Earth and Planetary Sciences (miscellaneous)2005Q1
Earth and Planetary Sciences (miscellaneous)2006Q1
Earth and Planetary Sciences (miscellaneous)2007Q1
Earth and Planetary Sciences (miscellaneous)2008Q1
Earth and Planetary Sciences (miscellaneous)2009Q1
Earth and Planetary Sciences (miscellaneous)2010Q1
Earth and Planetary Sciences (miscellaneous)2011Q1
Earth and Planetary Sciences (miscellaneous)2012Q2
Earth and Planetary Sciences (miscellaneous)2013Q2
Earth and Planetary Sciences (miscellaneous)2014Q1
Earth and Planetary Sciences (miscellaneous)2015Q1
Earth and Planetary Sciences (miscellaneous)2016Q1
Earth and Planetary Sciences (miscellaneous)2017Q2

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19991.643
Cites / Doc. (4 years)20001.939
Cites / Doc. (4 years)20011.198
Cites / Doc. (4 years)20021.262
Cites / Doc. (4 years)20031.531
Cites / Doc. (4 years)20041.241
Cites / Doc. (4 years)20051.456
Cites / Doc. (4 years)20061.624
Cites / Doc. (4 years)20071.559
Cites / Doc. (4 years)20081.497
Cites / Doc. (4 years)20091.555
Cites / Doc. (4 years)20101.734
Cites / Doc. (4 years)20112.052
Cites / Doc. (4 years)20121.689
Cites / Doc. (4 years)20131.408
Cites / Doc. (4 years)20141.779
Cites / Doc. (4 years)20152.358
Cites / Doc. (4 years)20162.802
Cites / Doc. (4 years)20172.613
Cites / Doc. (3 years)19991.643
Cites / Doc. (3 years)20001.314
Cites / Doc. (3 years)20010.987
Cites / Doc. (3 years)20021.405
Cites / Doc. (3 years)20031.493
Cites / Doc. (3 years)20041.057
Cites / Doc. (3 years)20051.230
Cites / Doc. (3 years)20061.746
Cites / Doc. (3 years)20071.461
Cites / Doc. (3 years)20081.131
Cites / Doc. (3 years)20091.629
Cites / Doc. (3 years)20101.782
Cites / Doc. (3 years)20111.836
Cites / Doc. (3 years)20121.080
Cites / Doc. (3 years)20131.451
Cites / Doc. (3 years)20142.114
Cites / Doc. (3 years)20152.402
Cites / Doc. (3 years)20162.839
Cites / Doc. (3 years)20171.297
Cites / Doc. (2 years)19990.877
Cites / Doc. (2 years)20000.981
Cites / Doc. (2 years)20011.000
Cites / Doc. (2 years)20021.180
Cites / Doc. (2 years)20031.205
Cites / Doc. (2 years)20040.645
Cites / Doc. (2 years)20051.358
Cites / Doc. (2 years)20061.874
Cites / Doc. (2 years)20070.746
Cites / Doc. (2 years)20081.083
Cites / Doc. (2 years)20091.637
Cites / Doc. (2 years)20101.621
Cites / Doc. (2 years)20110.933
Cites / Doc. (2 years)20121.052
Cites / Doc. (2 years)20131.573
Cites / Doc. (2 years)20142.126
Cites / Doc. (2 years)20152.610
Cites / Doc. (2 years)20161.213
Cites / Doc. (2 years)20171.398
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites19995
Self Cites200015
Self Cites20013
Self Cites20025
Self Cites20035
Self Cites20045
Self Cites20059
Self Cites200615
Self Cites20075
Self Cites200814
Self Cites20098
Self Cites201013
Self Cites20114
Self Cites20127
Self Cites201316
Self Cites201413
Self Cites201512
Self Cites201612
Self Cites201710
Total Cites1999115
Total Cites2000113
Total Cites200177
Total Cites2002111
Total Cites2003103
Total Cites200492
Total Cites2005123
Total Cites2006241
Total Cites2007222
Total Cites2008173
Total Cites2009277
Total Cites2010253
Total Cites2011246
Total Cites201294
Total Cites2013164
Total Cites2014241
Total Cites2015317
Total Cites2016318
Total Cites2017166
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document19991.571
External Cites per document20001.140
External Cites per document20010.949
External Cites per document20021.342
External Cites per document20031.420
External Cites per document20041.000
External Cites per document20051.140
External Cites per document20061.638
External Cites per document20071.428
External Cites per document20081.039
External Cites per document20091.582
External Cites per document20101.690
External Cites per document20111.806
External Cites per document20121.000
External Cites per document20131.310
External Cites per document20142.000
External Cites per document20152.311
External Cites per document20162.732
External Cites per document20171.219
Cites per document19991.643
Cites per document20001.314
Cites per document20010.987
Cites per document20021.405
Cites per document20031.493
Cites per document20041.057
Cites per document20051.230
Cites per document20061.746
Cites per document20071.461
Cites per document20081.131
Cites per document20091.629
Cites per document20101.782
Cites per document20111.836
Cites per document20121.080
Cites per document20131.451
Cites per document20142.114
Cites per document20152.402
Cites per document20162.839
Cites per document20171.297
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20040
Non-citable documents20053
Non-citable documents20068
Non-citable documents20078
Non-citable documents20088
Non-citable documents20098
Non-citable documents20109
Non-citable documents20118
Non-citable documents20128
Non-citable documents201310
Non-citable documents20149
Non-citable documents20155
Non-citable documents20163
Non-citable documents20176
Citable documents199970
Citable documents200086
Citable documents200178
Citable documents200279
Citable documents200369
Citable documents200487
Citable documents2005100
Citable documents2006138
Citable documents2007152
Citable documents2008153
Citable documents2009170
Citable documents2010142
Citable documents2011134
Citable documents201287
Citable documents2013113
Citable documents2014114
Citable documents2015132
Citable documents2016112
Citable documents2017128
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents199938
Uncited documents200040
Uncited documents200142
Uncited documents200237
Uncited documents200333
Uncited documents200451
Uncited documents200571
Uncited documents200695
Uncited documents2007115
Uncited documents2008115
Uncited documents2009104
Uncited documents201085
Uncited documents201178
Uncited documents201260
Uncited documents201366
Uncited documents201464
Uncited documents201574
Uncited documents201656
Uncited documents201771
Cited documents199932
Cited documents200046
Cited documents200136
Cited documents200242
Cited documents200336
Cited documents200436
Cited documents200532
Cited documents200651
Cited documents200745
Cited documents200846
Cited documents200974
Cited documents201066
Cited documents201164
Cited documents201235
Cited documents201357
Cited documents201459
Cited documents201563
Cited documents201659
Cited documents201763
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