Scimago Journal & Country Rank

Leading Edge

CountryUnited States
63
H Index
Subject Area and CategoryEarth and Planetary Sciences
Geology
Geophysics
PublisherSociety of Exploration Geophysicists
Publication typeJournals
ISSN1070485
Coverage1995-ongoing
Scope THE LEADING EDGE complements GEOPHYSICS, SEG"s peer-reviewed publication long unrivalled as the world"s most respected vehicle for dissemination of developments in exploration and development geophysics. TLE is a gateway publication, introducing new geophysical theory, instrumentation, and established practices to scientists in a wide range of geoscience disciplines. Most material is presented in a semitechnical manner that minimizes mathematical theory and emphasizes practical applications. TLE also serves as SEG"s publication venue for official society business. (source)
Quartiles

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.

CategoryYearQuartile
Geology1999Q3
Geology2000Q3
Geology2001Q2
Geology2002Q2
Geology2003Q2
Geology2004Q2
Geology2005Q3
Geology2006Q2
Geology2007Q3
Geology2008Q2
Geology2009Q1
Geology2010Q2
Geology2011Q1
Geology2012Q2
Geology2013Q1
Geology2014Q1
Geology2015Q2
Geology2016Q2
Geology2017Q3
Geophysics1999Q3
Geophysics2000Q3
Geophysics2001Q2
Geophysics2002Q2
Geophysics2003Q2
Geophysics2004Q2
Geophysics2005Q3
Geophysics2006Q2
Geophysics2007Q3
Geophysics2008Q2
Geophysics2009Q1
Geophysics2010Q2
Geophysics2011Q1
Geophysics2012Q2
Geophysics2013Q2
Geophysics2014Q2
Geophysics2015Q2
Geophysics2016Q2
Geophysics2017Q3
SJR

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.

YearSJR
19990.241
20000.267
20010.370
20020.467
20030.654
20040.654
20050.274
20060.516
20070.289
20080.638
20091.345
20100.591
20112.363
20120.624
20130.962
20140.974
20150.689
20160.727
20170.386
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)19990.261
Cites / Doc. (4 years)20000.446
Cites / Doc. (4 years)20010.449
Cites / Doc. (4 years)20020.519
Cites / Doc. (4 years)20030.602
Cites / Doc. (4 years)20040.523
Cites / Doc. (4 years)20050.623
Cites / Doc. (4 years)20060.858
Cites / Doc. (4 years)20070.990
Cites / Doc. (4 years)20080.951
Cites / Doc. (4 years)20091.347
Cites / Doc. (4 years)20101.217
Cites / Doc. (4 years)20111.591
Cites / Doc. (4 years)20121.354
Cites / Doc. (4 years)20131.659
Cites / Doc. (4 years)20141.575
Cites / Doc. (4 years)20151.325
Cites / Doc. (4 years)20160.928
Cites / Doc. (4 years)20170.940
Cites / Doc. (3 years)19990.261
Cites / Doc. (3 years)20000.469
Cites / Doc. (3 years)20010.398
Cites / Doc. (3 years)20020.614
Cites / Doc. (3 years)20030.591
Cites / Doc. (3 years)20040.588
Cites / Doc. (3 years)20050.574
Cites / Doc. (3 years)20060.768
Cites / Doc. (3 years)20070.995
Cites / Doc. (3 years)20081.022
Cites / Doc. (3 years)20091.400
Cites / Doc. (3 years)20101.178
Cites / Doc. (3 years)20111.738
Cites / Doc. (3 years)20121.360
Cites / Doc. (3 years)20131.695
Cites / Doc. (3 years)20141.333
Cites / Doc. (3 years)20151.190
Cites / Doc. (3 years)20160.969
Cites / Doc. (3 years)20170.887
Cites / Doc. (2 years)19990.265
Cites / Doc. (2 years)20000.408
Cites / Doc. (2 years)20010.401
Cites / Doc. (2 years)20020.613
Cites / Doc. (2 years)20030.668
Cites / Doc. (2 years)20040.568
Cites / Doc. (2 years)20050.516
Cites / Doc. (2 years)20060.679
Cites / Doc. (2 years)20071.004
Cites / Doc. (2 years)20081.046
Cites / Doc. (2 years)20091.343
Cites / Doc. (2 years)20101.232
Cites / Doc. (2 years)20111.772
Cites / Doc. (2 years)20121.358
Cites / Doc. (2 years)20131.258
Cites / Doc. (2 years)20141.195
Cites / Doc. (2 years)20151.181
Cites / Doc. (2 years)20160.787
Cites / Doc. (2 years)20170.848
Total Cites 
Self-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.

CitesYearValue
Self Cites19990
Self Cites20000
Self Cites20010
Self Cites20021
Self Cites20030
Self Cites20040
Self Cites20050
Self Cites20060
Self Cites20070
Self Cites20080
Self Cites20094
Self Cites201050
Self Cites201153
Self Cites201228
Self Cites201335
Self Cites201420
Self Cites201519
Self Cites201628
Self Cites201739
Total Cites199993
Total Cites2000199
Total Cites2001163
Total Cites2002226
Total Cites2003199
Total Cites2004201
Total Cites2005201
Total Cites2006261
Total Cites2007368
Total Cites2008426
Total Cites2009633
Total Cites2010529
Total Cites2011749
Total Cites2012548
Total Cites2013661
Total Cites2014560
Total Cites2015470
Total Cites2016409
Total Cites2017354
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.

CitesYearValue
External Cites per document19990.261
External Cites per document20000.469
External Cites per document20010.398
External Cites per document20020.611
External Cites per document20030.591
External Cites per document20040.588
External Cites per document20050.574
External Cites per document20060.768
External Cites per document20070.995
External Cites per document20081.022
External Cites per document20091.392
External Cites per document20101.067
External Cites per document20111.615
External Cites per document20121.290
External Cites per document20131.605
External Cites per document20141.286
External Cites per document20151.142
External Cites per document20160.903
External Cites per document20170.789
Cites per document19990.261
Cites per document20000.469
Cites per document20010.398
Cites per document20020.614
Cites per document20030.591
Cites per document20040.588
Cites per document20050.574
Cites per document20060.768
Cites per document20070.995
Cites per document20081.022
Cites per document20091.400
Cites per document20101.178
Cites per document20111.738
Cites per document20121.360
Cites per document20131.695
Cites per document20141.333
Cites per document20151.190
Cites per document20160.969
Cites per document20170.887
% 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
19993.85
200016.07
200114.41
200213.87
200316.41
20046.09
200512.70
200616.25
200719.88
200818.56
200926.58
201026.53
201110.16
201213.73
20139.62
201412.18
201510.45
201618.28
201719.25
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.

DocumentsYearValue
Non-citable documents19990
Non-citable documents20000
Non-citable documents20011
Non-citable documents200211
Non-citable documents200323
Non-citable documents200434
Non-citable documents200530
Non-citable documents200629
Non-citable documents200731
Non-citable documents200840
Non-citable documents200946
Non-citable documents201047
Non-citable documents201141
Non-citable documents201230
Non-citable documents201338
Non-citable documents201469
Non-citable documents2015122
Non-citable documents2016143
Non-citable documents2017144
Citable documents1999357
Citable documents2000424
Citable documents2001410
Citable documents2002368
Citable documents2003337
Citable documents2004342
Citable documents2005350
Citable documents2006340
Citable documents2007370
Citable documents2008417
Citable documents2009452
Citable documents2010449
Citable documents2011431
Citable documents2012403
Citable documents2013390
Citable documents2014420
Citable documents2015395
Citable documents2016422
Citable documents2017399
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.

DocumentsYearValue
Uncited documents1999293
Uncited documents2000314
Uncited documents2001312
Uncited documents2002251
Uncited documents2003249
Uncited documents2004260
Uncited documents2005272
Uncited documents2006257
Uncited documents2007227
Uncited documents2008287
Uncited documents2009261
Uncited documents2010275
Uncited documents2011239
Uncited documents2012217
Uncited documents2013210
Uncited documents2014284
Uncited documents2015323
Uncited documents2016405
Uncited documents2017384
Cited documents199964
Cited documents2000110
Cited documents200199
Cited documents2002128
Cited documents2003111
Cited documents2004116
Cited documents2005108
Cited documents2006112
Cited documents2007174
Cited documents2008170
Cited documents2009237
Cited documents2010221
Cited documents2011233
Cited documents2012216
Cited documents2013218
Cited documents2014205
Cited documents2015194
Cited documents2016160
Cited documents2017159
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