Scimago Journal & Country Rank

American Journal of Science

Country

United States

Universities and research institutions in United States

Subject Area and Category

Publisher

Yale University

H-Index

111

Publication type

Journals

ISSN

00029599

Coverage

1945-1948, 1950, 1969, 1973, 1975-2020

Information

Homepage

How to publish in this journal

ajs@yale.edu

Scope

The American Journal of Science (AJS), founded in 1818 by Benjamin Silliman, is the oldest scientific journal in the United States that has been published continuously. The Journal is devoted to geology and related sciences and publishes articles from around the world presenting results of major research from all earth sciences. Readers are primarily earth scientists in academia and government institutions. Join the conversation about this journal
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
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)2012Q1
Earth and Planetary Sciences (miscellaneous)2013Q1
Earth and Planetary Sciences (miscellaneous)2014Q1
Earth and Planetary Sciences (miscellaneous)2015Q1
Earth and Planetary Sciences (miscellaneous)2016Q1
Earth and Planetary Sciences (miscellaneous)2017Q1
Earth and Planetary Sciences (miscellaneous)2018Q1
Earth and Planetary Sciences (miscellaneous)2019Q1
Earth and Planetary Sciences (miscellaneous)2020Q1
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
19991.862
20001.951
20013.265
20022.907
20033.787
20042.885
20052.628
20061.964
20072.342
20082.093
20092.056
20102.271
20112.385
20122.221
20132.411
20142.189
20152.056
20162.502
20172.403
20181.860
20191.911
20202.638
Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

YearDocuments
199929
200022
200134
200224
200327
200427
200539
200628
200743
200840
200932
201056
201128
201228
201331
201450
201530
201627
201728
201837
201927
202027
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)19991.916
Cites / Doc. (4 years)20002.371
Cites / Doc. (4 years)20013.364
Cites / Doc. (4 years)20023.571
Cites / Doc. (4 years)20034.725
Cites / Doc. (4 years)20044.000
Cites / Doc. (4 years)20054.188
Cites / Doc. (4 years)20063.350
Cites / Doc. (4 years)20073.446
Cites / Doc. (4 years)20083.226
Cites / Doc. (4 years)20093.027
Cites / Doc. (4 years)20103.140
Cites / Doc. (4 years)20113.404
Cites / Doc. (4 years)20124.955
Cites / Doc. (4 years)20134.882
Cites / Doc. (4 years)20144.559
Cites / Doc. (4 years)20153.752
Cites / Doc. (4 years)20164.007
Cites / Doc. (4 years)20174.471
Cites / Doc. (4 years)20184.311
Cites / Doc. (4 years)20193.803
Cites / Doc. (4 years)20204.462
Cites / Doc. (3 years)19991.916
Cites / Doc. (3 years)20002.239
Cites / Doc. (3 years)20013.679
Cites / Doc. (3 years)20023.518
Cites / Doc. (3 years)20034.775
Cites / Doc. (3 years)20043.412
Cites / Doc. (3 years)20053.051
Cites / Doc. (3 years)20062.935
Cites / Doc. (3 years)20073.319
Cites / Doc. (3 years)20082.564
Cites / Doc. (3 years)20092.676
Cites / Doc. (3 years)20103.270
Cites / Doc. (3 years)20113.422
Cites / Doc. (3 years)20124.034
Cites / Doc. (3 years)20134.643
Cites / Doc. (3 years)20143.989
Cites / Doc. (3 years)20153.193
Cites / Doc. (3 years)20164.162
Cites / Doc. (3 years)20174.252
Cites / Doc. (3 years)20183.847
Cites / Doc. (3 years)20193.402
Cites / Doc. (3 years)20204.511
Cites / Doc. (2 years)19991.932
Cites / Doc. (2 years)20002.268
Cites / Doc. (2 years)20013.471
Cites / Doc. (2 years)20023.446
Cites / Doc. (2 years)20034.310
Cites / Doc. (2 years)20042.333
Cites / Doc. (2 years)20052.481
Cites / Doc. (2 years)20062.803
Cites / Doc. (2 years)20072.507
Cites / Doc. (2 years)20081.972
Cites / Doc. (2 years)20092.265
Cites / Doc. (2 years)20103.069
Cites / Doc. (2 years)20112.739
Cites / Doc. (2 years)20123.631
Cites / Doc. (2 years)20134.179
Cites / Doc. (2 years)20143.034
Cites / Doc. (2 years)20153.185
Cites / Doc. (2 years)20163.900
Cites / Doc. (2 years)20173.982
Cites / Doc. (2 years)20183.400
Cites / Doc. (2 years)20192.969
Cites / Doc. (2 years)20205.125
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 Cites199913
Self Cites20005
Self Cites200115
Self Cites200211
Self Cites200316
Self Cites200420
Self Cites200510
Self Cites200612
Self Cites20079
Self Cites20086
Self Cites200912
Self Cites201024
Self Cites201112
Self Cites20128
Self Cites201312
Self Cites201412
Self Cites201512
Self Cites20166
Self Cites201710
Self Cites20188
Self Cites201920
Self Cites20206
Total Cites1999182
Total Cites2000197
Total Cites2001287
Total Cites2002299
Total Cites2003382
Total Cites2004290
Total Cites2005238
Total Cites2006273
Total Cites2007312
Total Cites2008282
Total Cites2009297
Total Cites2010376
Total Cites2011438
Total Cites2012468
Total Cites2013520
Total Cites2014347
Total Cites2015348
Total Cites2016462
Total Cites2017455
Total Cites2018327
Total Cites2019313
Total Cites2020415
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 document19991.779
External Cites per document20002.182
External Cites per document20013.487
External Cites per document20023.388
External Cites per document20034.575
External Cites per document20043.176
External Cites per document20052.961
External Cites per document20062.868
External Cites per document20073.367
External Cites per document20082.733
External Cites per document20092.850
External Cites per document20103.417
External Cites per document20113.610
External Cites per document20124.220
External Cites per document20134.704
External Cites per document20143.895
External Cites per document20153.262
External Cites per document20164.343
External Cites per document20174.363
External Cites per document20183.753
External Cites per document20193.292
External Cites per document20204.701
Cites per document19991.916
Cites per document20002.239
Cites per document20013.679
Cites per document20023.518
Cites per document20034.775
Cites per document20043.412
Cites per document20053.051
Cites per document20062.935
Cites per document20073.319
Cites per document20082.564
Cites per document20092.676
Cites per document20103.270
Cites per document20113.422
Cites per document20124.034
Cites per document20134.643
Cites per document20143.989
Cites per document20153.193
Cites per document20164.162
Cites per document20174.252
Cites per document20183.847
Cites per document20193.402
Cites per document20204.511
% 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
199931.03
200040.91
200129.41
200220.83
200322.22
200422.22
200523.08
200635.71
200739.53
200855.00
200956.25
201053.57
201150.00
201239.29
201348.39
201460.00
201556.67
201651.85
201735.71
201835.14
201948.15
202029.63
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 documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20040
Non-citable documents20051
Non-citable documents20062
Non-citable documents20074
Non-citable documents20089
Non-citable documents200911
Non-citable documents201012
Non-citable documents201110
Non-citable documents20127
Non-citable documents20134
Non-citable documents20141
Non-citable documents20156
Non-citable documents20166
Non-citable documents20175
Non-citable documents20180
Non-citable documents20193
Non-citable documents20205
Citable documents199995
Citable documents200088
Citable documents200178
Citable documents200285
Citable documents200380
Citable documents200485
Citable documents200577
Citable documents200691
Citable documents200790
Citable documents2008101
Citable documents2009100
Citable documents2010103
Citable documents2011118
Citable documents2012109
Citable documents2013108
Citable documents201486
Citable documents2015103
Citable documents2016105
Citable documents2017102
Citable documents201885
Citable documents201989
Citable documents202087
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 documents199931
Uncited documents200022
Uncited documents200114
Uncited documents200216
Uncited documents200311
Uncited documents200419
Uncited documents200520
Uncited documents200622
Uncited documents200725
Uncited documents200830
Uncited documents200921
Uncited documents201021
Uncited documents201134
Uncited documents201218
Uncited documents201326
Uncited documents201417
Uncited documents201530
Uncited documents201619
Uncited documents201720
Uncited documents201812
Uncited documents201919
Uncited documents202019
Cited documents199964
Cited documents200066
Cited documents200164
Cited documents200269
Cited documents200369
Cited documents200466
Cited documents200558
Cited documents200671
Cited documents200769
Cited documents200880
Cited documents200990
Cited documents201094
Cited documents201194
Cited documents201298
Cited documents201386
Cited documents201470
Cited documents201579
Cited documents201692
Cited documents201787
Cited documents201873
Cited documents201973
Cited documents202073
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Metrics based on Scopus® data as of April 2021
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