Scimago Journal & Country Rank

Metrologia

Country

United Kingdom

Universities and research institutions in United Kingdom

Subject Area and Category

Publisher

IOP Publishing Ltd.

H-Index

79

Publication type

Journals

ISSN

00261394, 16817575

Coverage

1965-2021

Information

Homepage

How to publish in this journal

Graham.Stinton@ioppublishing.org

Scope

Metrologia covers the fundamentals of measurements, particularly those dealing with the seven base units of the International System of Units (metre, kilogram, second, ampere, kelvin, candela, mole) or proposals to replace them. The journal also publishes papers that contribute to the solution of difficult measurement problems and improve the accuracy of derived units and constants that are of fundamental importance to physics. In addition to regular papers, the journal publishes review articles, issues devoted to single topics of timely interest and occasional conference proceedings. Letters to the Editor and Short Communications (generally three pages or less) are also considered. In support of the CIPM Mutual Recognition Arrangement (MRA), the web-based Technical Supplement to Metrologia publishes final reports of key and supplementary comparisons. Launched in 1965 and published by IOP Publishing on behalf of the Bureau International des Poids et Mesures (BIPM) since 2003, Metrologia is an international journal dealing with pure and applied metrology. 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
Engineering (miscellaneous)1999Q1
Engineering (miscellaneous)2000Q1
Engineering (miscellaneous)2001Q1
Engineering (miscellaneous)2002Q1
Engineering (miscellaneous)2003Q1
Engineering (miscellaneous)2004Q1
Engineering (miscellaneous)2005Q1
Engineering (miscellaneous)2006Q1
Engineering (miscellaneous)2007Q1
Engineering (miscellaneous)2008Q1
Engineering (miscellaneous)2009Q1
Engineering (miscellaneous)2010Q1
Engineering (miscellaneous)2011Q1
Engineering (miscellaneous)2012Q1
Engineering (miscellaneous)2013Q1
Engineering (miscellaneous)2014Q1
Engineering (miscellaneous)2015Q1
Engineering (miscellaneous)2016Q1
Engineering (miscellaneous)2017Q1
Engineering (miscellaneous)2018Q1
Engineering (miscellaneous)2019Q1
Engineering (miscellaneous)2020Q1
Engineering (miscellaneous)2021Q2
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
19990.690
20000.496
20010.604
20020.426
20030.924
20040.802
20051.343
20060.636
20070.966
20080.773
20090.842
20100.779
20111.074
20121.153
20131.001
20140.997
20150.813
20160.880
20170.614
20180.812
20190.876
20200.637
20210.589
Total Documents

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

YearDocuments
199993
2000125
200166
200267
2003121
200484
2005148
2006139
2007103
2008105
2009130
201088
2011101
2012152
201373
2014182
2015157
2016175
2017119
2018186
2019159
2020222
2021158
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)19990.578
Cites / Doc. (4 years)20000.816
Cites / Doc. (4 years)20010.731
Cites / Doc. (4 years)20020.632
Cites / Doc. (4 years)20031.162
Cites / Doc. (4 years)20041.216
Cites / Doc. (4 years)20052.047
Cites / Doc. (4 years)20061.810
Cites / Doc. (4 years)20071.888
Cites / Doc. (4 years)20081.601
Cites / Doc. (4 years)20091.853
Cites / Doc. (4 years)20101.778
Cites / Doc. (4 years)20111.784
Cites / Doc. (4 years)20122.139
Cites / Doc. (4 years)20131.900
Cites / Doc. (4 years)20142.568
Cites / Doc. (4 years)20152.313
Cites / Doc. (4 years)20162.250
Cites / Doc. (4 years)20171.937
Cites / Doc. (4 years)20182.363
Cites / Doc. (4 years)20192.270
Cites / Doc. (4 years)20202.171
Cites / Doc. (4 years)20211.824
Cites / Doc. (3 years)19990.578
Cites / Doc. (3 years)20000.894
Cites / Doc. (3 years)20010.708
Cites / Doc. (3 years)20020.658
Cites / Doc. (3 years)20031.314
Cites / Doc. (3 years)20041.433
Cites / Doc. (3 years)20052.085
Cites / Doc. (3 years)20061.810
Cites / Doc. (3 years)20071.879
Cites / Doc. (3 years)20081.636
Cites / Doc. (3 years)20092.032
Cites / Doc. (3 years)20101.704
Cites / Doc. (3 years)20111.879
Cites / Doc. (3 years)20122.091
Cites / Doc. (3 years)20132.044
Cites / Doc. (3 years)20142.592
Cites / Doc. (3 years)20152.229
Cites / Doc. (3 years)20162.488
Cites / Doc. (3 years)20171.858
Cites / Doc. (3 years)20182.574
Cites / Doc. (3 years)20192.192
Cites / Doc. (3 years)20202.347
Cites / Doc. (3 years)20211.670
Cites / Doc. (2 years)19990.683
Cites / Doc. (2 years)20000.863
Cites / Doc. (2 years)20010.628
Cites / Doc. (2 years)20020.723
Cites / Doc. (2 years)20031.293
Cites / Doc. (2 years)20041.441
Cites / Doc. (2 years)20052.180
Cites / Doc. (2 years)20061.616
Cites / Doc. (2 years)20071.882
Cites / Doc. (2 years)20081.860
Cites / Doc. (2 years)20091.663
Cites / Doc. (2 years)20101.787
Cites / Doc. (2 years)20111.826
Cites / Doc. (2 years)20122.317
Cites / Doc. (2 years)20131.976
Cites / Doc. (2 years)20142.542
Cites / Doc. (2 years)20152.286
Cites / Doc. (2 years)20162.351
Cites / Doc. (2 years)20171.861
Cites / Doc. (2 years)20182.510
Cites / Doc. (2 years)20192.439
Cites / Doc. (2 years)20202.093
Cites / Doc. (2 years)20211.572
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 Cites199932
Self Cites2000135
Self Cites200146
Self Cites200249
Self Cites200395
Self Cites200478
Self Cites200585
Self Cites2006173
Self Cites2007146
Self Cites2008128
Self Cites2009139
Self Cites2010119
Self Cites201193
Self Cites2012127
Self Cites2013113
Self Cites2014212
Self Cites2015200
Self Cites2016213
Self Cites2017257
Self Cites2018227
Self Cites2019153
Self Cites2020197
Self Cites2021152
Total Cites1999144
Total Cites2000244
Total Cites2001238
Total Cites2002187
Total Cites2003339
Total Cites2004364
Total Cites2005567
Total Cites2006639
Total Cites2007697
Total Cites2008638
Total Cites2009705
Total Cites2010576
Total Cites2011607
Total Cites2012667
Total Cites2013697
Total Cites2014845
Total Cites2015907
Total Cites20161025
Total Cites2017955
Total Cites20181161
Total Cites20191052
Total Cites20201089
Total Cites2021947
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 document19990.452
External Cites per document20000.399
External Cites per document20010.573
External Cites per document20020.495
External Cites per document20030.992
External Cites per document20041.192
External Cites per document20051.847
External Cites per document20061.339
External Cites per document20071.501
External Cites per document20081.321
External Cites per document20091.650
External Cites per document20101.368
External Cites per document20111.611
External Cites per document20121.742
External Cites per document20131.759
External Cites per document20141.991
External Cites per document20151.754
External Cites per document20161.990
External Cites per document20171.371
External Cites per document20182.085
External Cites per document20191.877
External Cites per document20201.922
External Cites per document20211.402
Cites per document19990.578
Cites per document20000.894
Cites per document20010.708
Cites per document20020.658
Cites per document20031.314
Cites per document20041.433
Cites per document20052.085
Cites per document20061.810
Cites per document20071.879
Cites per document20081.636
Cites per document20092.032
Cites per document20101.704
Cites per document20111.879
Cites per document20122.091
Cites per document20132.044
Cites per document20142.592
Cites per document20152.229
Cites per document20162.488
Cites per document20171.858
Cites per document20182.574
Cites per document20192.192
Cites per document20202.347
Cites per document20211.670
% 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
199929.03
200022.40
20010.00
200211.94
200318.18
200419.05
200540.54
200628.78
200722.33
200827.62
200930.00
201026.14
201144.55
201238.82
201327.40
201447.25
201536.94
201653.71
201733.61
201856.99
201959.12
202059.01
202150.63
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 documents19991
Non-citable documents20000
Non-citable documents20011
Non-citable documents20025
Non-citable documents200312
Non-citable documents200414
Non-citable documents200511
Non-citable documents20065
Non-citable documents20074
Non-citable documents20084
Non-citable documents20094
Non-citable documents20104
Non-citable documents20114
Non-citable documents20129
Non-citable documents20139
Non-citable documents20148
Non-citable documents20154
Non-citable documents20164
Non-citable documents20175
Non-citable documents20183
Non-citable documents20191
Non-citable documents20200
Non-citable documents20210
Citable documents1999248
Citable documents2000273
Citable documents2001335
Citable documents2002279
Citable documents2003246
Citable documents2004240
Citable documents2005261
Citable documents2006348
Citable documents2007367
Citable documents2008386
Citable documents2009343
Citable documents2010334
Citable documents2011319
Citable documents2012310
Citable documents2013332
Citable documents2014318
Citable documents2015403
Citable documents2016408
Citable documents2017509
Citable documents2018448
Citable documents2019479
Citable documents2020464
Citable documents2021567
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 documents1999165
Uncited documents2000147
Uncited documents2001196
Uncited documents2002179
Uncited documents2003118
Uncited documents2004124
Uncited documents2005102
Uncited documents2006157
Uncited documents2007140
Uncited documents2008179
Uncited documents2009120
Uncited documents2010132
Uncited documents2011122
Uncited documents2012115
Uncited documents2013114
Uncited documents201493
Uncited documents2015159
Uncited documents2016149
Uncited documents2017221
Uncited documents2018152
Uncited documents2019208
Uncited documents2020191
Uncited documents2021274
Cited documents199984
Cited documents2000126
Cited documents2001140
Cited documents2002105
Cited documents2003140
Cited documents2004130
Cited documents2005170
Cited documents2006196
Cited documents2007231
Cited documents2008211
Cited documents2009227
Cited documents2010206
Cited documents2011201
Cited documents2012204
Cited documents2013227
Cited documents2014233
Cited documents2015248
Cited documents2016263
Cited documents2017293
Cited documents2018299
Cited documents2019272
Cited documents2020273
Cited documents2021293
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