Holocene

he Holocene is a high impact, peer reviewed journal dedicated to fundamental scientific research at the interface between the long Quaternary record and the natural and human-induced environmental processes operating at the Earth's surface today. The Holocene emphasizes environmental change over the last ca 11 700 years - the most recent geological epoch and the most relevant time-span for understanding the future environments of the human species. The journal reflects the wide range of important and exciting interdisciplinary research being carried out in this field, and its coverage is worldwide. No other journal caters for the specific interdisciplinary needs of the large international community of scientists working on The Holocene. The Holocene is the first journal dedicated to fundamental scientific research on environmental change over the Holocene epoch, i.e. the last ~11,700 years. It is an interdisciplinary journal that invites contributions from any discipline and aims to attract the best research of international interest from anywhere in the world. The Holocene covers: Palaeo-environmental research of all types including, for example, the results of palaeoclimatic, palaeoecological, palaeohydrological, palaeopedological and palaeoceanographic investigations; Climatic and other environmental changes on annual, decadal, centennial and millennial timescales; Geological, biological and archaeological evidence of recent environmental change; The nature, processes, mechanisms and causes of natural and human-induced environmental change; Techniques for reconstructing, dating, monitoring and modelling environmental change; Use of modern analogues to elucidate the palaeo-environmental record in terrestrial and marine environments; Palaeo-environmental and geo-archaeological perspectives on regional to global environmental changes and their effects; The development of natural and cultural landscapes and ecosystems;...etc.

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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.

Category	Year	Quartile
Archeology (arts and humanities)	1999	Q1
Archeology (arts and humanities)	2000	Q1
Archeology (arts and humanities)	2001	Q1
Archeology (arts and humanities)	2002	Q1
Archeology (arts and humanities)	2003	Q1
Archeology (arts and humanities)	2004	Q1
Archeology (arts and humanities)	2005	Q1
Archeology (arts and humanities)	2006	Q1
Archeology (arts and humanities)	2007	Q1
Archeology (arts and humanities)	2008	Q1
Archeology (arts and humanities)	2009	Q1
Archeology (arts and humanities)	2010	Q1
Archeology (arts and humanities)	2011	Q1
Archeology (arts and humanities)	2012	Q1
Archeology (arts and humanities)	2013	Q1
Archeology (arts and humanities)	2014	Q1
Archeology (arts and humanities)	2015	Q1
Archeology (arts and humanities)	2016	Q1
Archeology (arts and humanities)	2017	Q1
Archeology (arts and humanities)	2018	Q1
Archeology (arts and humanities)	2019	Q1
Archeology (arts and humanities)	2020	Q1
Archeology (arts and humanities)	2021	Q1
Archeology (arts and humanities)	2022	Q1
Archeology (arts and humanities)	2023	Q1
Earth-Surface Processes	1999	Q1
Earth-Surface Processes	2000	Q1
Earth-Surface Processes	2001	Q1
Earth-Surface Processes	2002	Q1
Earth-Surface Processes	2003	Q1
Earth-Surface Processes	2004	Q1
Earth-Surface Processes	2005	Q1
Earth-Surface Processes	2006	Q1
Earth-Surface Processes	2007	Q1
Earth-Surface Processes	2008	Q1
Earth-Surface Processes	2009	Q1
Earth-Surface Processes	2010	Q1
Earth-Surface Processes	2011	Q1
Earth-Surface Processes	2012	Q1
Earth-Surface Processes	2013	Q1
Earth-Surface Processes	2014	Q1
Earth-Surface Processes	2015	Q1
Earth-Surface Processes	2016	Q1
Earth-Surface Processes	2017	Q1
Earth-Surface Processes	2018	Q1
Earth-Surface Processes	2019	Q1
Earth-Surface Processes	2020	Q1
Earth-Surface Processes	2021	Q1
Earth-Surface Processes	2022	Q1
Earth-Surface Processes	2023	Q1
Ecology	1999	Q1
Ecology	2000	Q1
Ecology	2001	Q1
Ecology	2002	Q1
Ecology	2003	Q1
Ecology	2004	Q1
Ecology	2005	Q1
Ecology	2006	Q1
Ecology	2007	Q1
Ecology	2008	Q1
Ecology	2009	Q1
Ecology	2010	Q1
Ecology	2011	Q1
Ecology	2012	Q1
Ecology	2013	Q1
Ecology	2014	Q1
Ecology	2015	Q1
Ecology	2016	Q1
Ecology	2017	Q1
Ecology	2018	Q1
Ecology	2019	Q1
Ecology	2020	Q1
Ecology	2021	Q1
Ecology	2022	Q1
Ecology	2023	Q1
Global and Planetary Change	1999	Q1
Global and Planetary Change	2000	Q1
Global and Planetary Change	2001	Q1
Global and Planetary Change	2002	Q1
Global and Planetary Change	2003	Q1
Global and Planetary Change	2004	Q1
Global and Planetary Change	2005	Q1
Global and Planetary Change	2006	Q1
Global and Planetary Change	2007	Q1
Global and Planetary Change	2008	Q1
Global and Planetary Change	2009	Q1
Global and Planetary Change	2010	Q1
Global and Planetary Change	2011	Q1
Global and Planetary Change	2012	Q1
Global and Planetary Change	2013	Q1
Global and Planetary Change	2014	Q1
Global and Planetary Change	2015	Q2
Global and Planetary Change	2016	Q2
Global and Planetary Change	2017	Q2
Global and Planetary Change	2018	Q2
Global and Planetary Change	2019	Q2
Global and Planetary Change	2020	Q2
Global and Planetary Change	2021	Q2
Global and Planetary Change	2022	Q2
Global and Planetary Change	2023	Q2
Paleontology	1999	Q1
Paleontology	2000	Q1
Paleontology	2001	Q1
Paleontology	2002	Q1
Paleontology	2003	Q1
Paleontology	2004	Q1
Paleontology	2005	Q1
Paleontology	2006	Q1
Paleontology	2007	Q1
Paleontology	2008	Q1
Paleontology	2009	Q1
Paleontology	2010	Q1
Paleontology	2011	Q1
Paleontology	2012	Q1
Paleontology	2013	Q1
Paleontology	2014	Q1
Paleontology	2015	Q1
Paleontology	2016	Q1
Paleontology	2017	Q1
Paleontology	2018	Q1
Paleontology	2019	Q1
Paleontology	2020	Q1
Paleontology	2021	Q1
Paleontology	2022	Q1
Paleontology	2023	Q1

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.

Year	SJR
1999	1.679
2000	2.152
2001	1.734
2002	1.739
2003	1.823
2004	2.330
2005	1.938
2006	1.701
2007	1.822
2008	1.815
2009	1.742
2010	1.687
2011	1.715
2012	1.907
2013	1.864
2014	1.491
2015	1.221
2016	1.103
2017	1.202
2018	1.321
2019	1.088
2020	1.008
2021	1.037
2022	1.025
2023	0.779

Total Documents

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

Year	Documents
1999	71
2000	74
2001	72
2002	68
2003	85
2004	90
2005	115
2006	98
2007	111
2008	98
2009	97
2010	102
2011	99
2012	133
2013	168
2014	156
2015	159
2016	155
2017	158
2018	160
2019	139
2020	149
2021	143
2022	116
2023	116

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 document	Year	Value
Cites / Doc. (4 years)	1999	1.924
Cites / Doc. (4 years)	2000	2.457
Cites / Doc. (4 years)	2001	2.282
Cites / Doc. (4 years)	2002	2.496
Cites / Doc. (4 years)	2003	2.888
Cites / Doc. (4 years)	2004	2.819
Cites / Doc. (4 years)	2005	3.289
Cites / Doc. (4 years)	2006	3.126
Cites / Doc. (4 years)	2007	2.907
Cites / Doc. (4 years)	2008	2.976
Cites / Doc. (4 years)	2009	3.206
Cites / Doc. (4 years)	2010	3.200
Cites / Doc. (4 years)	2011	3.098
Cites / Doc. (4 years)	2012	3.735
Cites / Doc. (4 years)	2013	4.313
Cites / Doc. (4 years)	2014	3.422
Cites / Doc. (4 years)	2015	3.110
Cites / Doc. (4 years)	2016	2.631
Cites / Doc. (4 years)	2017	2.688
Cites / Doc. (4 years)	2018	2.954
Cites / Doc. (4 years)	2019	2.847
Cites / Doc. (4 years)	2020	2.716
Cites / Doc. (4 years)	2021	2.947
Cites / Doc. (4 years)	2022	2.878
Cites / Doc. (4 years)	2023	2.461
Cites / Doc. (3 years)	1999	1.924
Cites / Doc. (3 years)	2000	2.473
Cites / Doc. (3 years)	2001	2.257
Cites / Doc. (3 years)	2002	2.359
Cites / Doc. (3 years)	2003	2.729
Cites / Doc. (3 years)	2004	2.782
Cites / Doc. (3 years)	2005	3.128
Cites / Doc. (3 years)	2006	2.948
Cites / Doc. (3 years)	2007	2.611
Cites / Doc. (3 years)	2008	2.861
Cites / Doc. (3 years)	2009	2.821
Cites / Doc. (3 years)	2010	3.056
Cites / Doc. (3 years)	2011	2.946
Cites / Doc. (3 years)	2012	3.624
Cites / Doc. (3 years)	2013	4.299
Cites / Doc. (3 years)	2014	3.365
Cites / Doc. (3 years)	2015	2.597
Cites / Doc. (3 years)	2016	2.482
Cites / Doc. (3 years)	2017	2.630
Cites / Doc. (3 years)	2018	2.867
Cites / Doc. (3 years)	2019	2.786
Cites / Doc. (3 years)	2020	2.650
Cites / Doc. (3 years)	2021	2.908
Cites / Doc. (3 years)	2022	2.882
Cites / Doc. (3 years)	2023	2.167
Cites / Doc. (2 years)	1999	1.855
Cites / Doc. (2 years)	2000	2.603
Cites / Doc. (2 years)	2001	2.090
Cites / Doc. (2 years)	2002	2.158
Cites / Doc. (2 years)	2003	2.636
Cites / Doc. (2 years)	2004	2.601
Cites / Doc. (2 years)	2005	2.640
Cites / Doc. (2 years)	2006	2.532
Cites / Doc. (2 years)	2007	2.498
Cites / Doc. (2 years)	2008	2.344
Cites / Doc. (2 years)	2009	2.555
Cites / Doc. (2 years)	2010	2.785
Cites / Doc. (2 years)	2011	2.724
Cites / Doc. (2 years)	2012	3.642
Cites / Doc. (2 years)	2013	4.379
Cites / Doc. (2 years)	2014	2.635
Cites / Doc. (2 years)	2015	2.364
Cites / Doc. (2 years)	2016	2.378
Cites / Doc. (2 years)	2017	2.452
Cites / Doc. (2 years)	2018	2.597
Cites / Doc. (2 years)	2019	2.566
Cites / Doc. (2 years)	2020	2.612
Cites / Doc. (2 years)	2021	2.983
Cites / Doc. (2 years)	2022	2.586
Cites / Doc. (2 years)	2023	1.884

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.

Cites	Year	Value
Self Cites	1999	54
Self Cites	2000	52
Self Cites	2001	75
Self Cites	2002	55
Self Cites	2003	80
Self Cites	2004	78
Self Cites	2005	99
Self Cites	2006	101
Self Cites	2007	135
Self Cites	2008	109
Self Cites	2009	102
Self Cites	2010	71
Self Cites	2011	70
Self Cites	2012	83
Self Cites	2013	117
Self Cites	2014	153
Self Cites	2015	118
Self Cites	2016	94
Self Cites	2017	112
Self Cites	2018	97
Self Cites	2019	78
Self Cites	2020	86
Self Cites	2021	82
Self Cites	2022	61
Self Cites	2023	60
Total Cites	1999	331
Total Cites	2000	465
Total Cites	2001	474
Total Cites	2002	512
Total Cites	2003	584
Total Cites	2004	626
Total Cites	2005	760
Total Cites	2006	855
Total Cites	2007	791
Total Cites	2008	927
Total Cites	2009	866
Total Cites	2010	935
Total Cites	2011	875
Total Cites	2012	1080
Total Cites	2013	1436
Total Cites	2014	1346
Total Cites	2015	1187
Total Cites	2016	1199
Total Cites	2017	1236
Total Cites	2018	1353
Total Cites	2019	1318
Total Cites	2020	1211
Total Cites	2021	1303
Total Cites	2022	1242
Total Cites	2023	884

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.

Cites	Year	Value
External Cites per document	1999	1.610
External Cites per document	2000	2.197
External Cites per document	2001	1.900
External Cites per document	2002	2.106
External Cites per document	2003	2.355
External Cites per document	2004	2.436
External Cites per document	2005	2.720
External Cites per document	2006	2.600
External Cites per document	2007	2.165
External Cites per document	2008	2.525
External Cites per document	2009	2.489
External Cites per document	2010	2.824
External Cites per document	2011	2.710
External Cites per document	2012	3.346
External Cites per document	2013	3.949
External Cites per document	2014	2.983
External Cites per document	2015	2.339
External Cites per document	2016	2.288
External Cites per document	2017	2.391
External Cites per document	2018	2.661
External Cites per document	2019	2.622
External Cites per document	2020	2.462
External Cites per document	2021	2.725
External Cites per document	2022	2.740
External Cites per document	2023	2.020
Cites per document	1999	1.924
Cites per document	2000	2.473
Cites per document	2001	2.257
Cites per document	2002	2.359
Cites per document	2003	2.729
Cites per document	2004	2.782
Cites per document	2005	3.128
Cites per document	2006	2.948
Cites per document	2007	2.611
Cites per document	2008	2.861
Cites per document	2009	2.821
Cites per document	2010	3.056
Cites per document	2011	2.946
Cites per document	2012	3.624
Cites per document	2013	4.299
Cites per document	2014	3.365
Cites per document	2015	2.597
Cites per document	2016	2.482
Cites per document	2017	2.630
Cites per document	2018	2.867
Cites per document	2019	2.786
Cites per document	2020	2.650
Cites per document	2021	2.908
Cites per document	2022	2.882
Cites per document	2023	2.167

% 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.

Year	International Collaboration
1999	32.39
2000	28.38
2001	11.11
2002	50.00
2003	45.88
2004	46.67
2005	43.48
2006	43.88
2007	52.25
2008	43.88
2009	51.55
2010	52.94
2011	48.48
2012	56.39
2013	46.43
2014	46.79
2015	44.65
2016	61.29
2017	53.80
2018	56.25
2019	47.48
2020	55.03
2021	47.55
2022	45.69
2023	53.45

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.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	1
Non-citable documents	2001	1
Non-citable documents	2002	4
Non-citable documents	2003	3
Non-citable documents	2004	3
Non-citable documents	2005	0
Non-citable documents	2006	0
Non-citable documents	2007	0
Non-citable documents	2008	0
Non-citable documents	2009	2
Non-citable documents	2010	2
Non-citable documents	2011	2
Non-citable documents	2012	1
Non-citable documents	2013	3
Non-citable documents	2014	3
Non-citable documents	2015	2
Non-citable documents	2016	1
Non-citable documents	2017	2
Non-citable documents	2018	2
Non-citable documents	2019	2
Non-citable documents	2020	2
Non-citable documents	2021	5
Non-citable documents	2022	5
Non-citable documents	2023	5
Citable documents	1999	172
Citable documents	2000	187
Citable documents	2001	209
Citable documents	2002	213
Citable documents	2003	211
Citable documents	2004	222
Citable documents	2005	243
Citable documents	2006	290
Citable documents	2007	303
Citable documents	2008	324
Citable documents	2009	305
Citable documents	2010	304
Citable documents	2011	295
Citable documents	2012	297
Citable documents	2013	331
Citable documents	2014	397
Citable documents	2015	455
Citable documents	2016	482
Citable documents	2017	468
Citable documents	2018	470
Citable documents	2019	471
Citable documents	2020	455
Citable documents	2021	443
Citable documents	2022	426
Citable documents	2023	403

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.

Documents	Year	Value
Uncited documents	1999	52
Uncited documents	2000	49
Uncited documents	2001	57
Uncited documents	2002	48
Uncited documents	2003	47
Uncited documents	2004	36
Uncited documents	2005	50
Uncited documents	2006	57
Uncited documents	2007	67
Uncited documents	2008	74
Uncited documents	2009	53
Uncited documents	2010	61
Uncited documents	2011	53
Uncited documents	2012	61
Uncited documents	2013	35
Uncited documents	2014	62
Uncited documents	2015	79
Uncited documents	2016	97
Uncited documents	2017	72
Uncited documents	2018	79
Uncited documents	2019	82
Uncited documents	2020	80
Uncited documents	2021	73
Uncited documents	2022	82
Uncited documents	2023	96
Cited documents	1999	120
Cited documents	2000	139
Cited documents	2001	153
Cited documents	2002	169
Cited documents	2003	167
Cited documents	2004	189
Cited documents	2005	193
Cited documents	2006	233
Cited documents	2007	236
Cited documents	2008	250
Cited documents	2009	254
Cited documents	2010	245
Cited documents	2011	244
Cited documents	2012	237
Cited documents	2013	299
Cited documents	2014	338
Cited documents	2015	378
Cited documents	2016	386
Cited documents	2017	398
Cited documents	2018	393
Cited documents	2019	391
Cited documents	2020	377
Cited documents	2021	375
Cited documents	2022	349
Cited documents	2023	312