Computers, Environment and Urban Systems

Computers, Environment and Urban Systems is an interdisciplinary journal publishing cutting-edge and innovative computer-based research on urban systems, systems of cities, and built and natural environments , that privileges the geospatial perspective. The journal provides a stimulating presentation of perspectives, research developments, overviews of important new technologies and uses of major computational, information-based, and visualization innovations. Applied and theoretical contributions demonstrate the scope of computer-based analysis fostering a better understanding of urban systems, the synergistic relationships between built and natural environments, their spatial scope and their dynamics. Application areas include infrastructure and facilities management, physical planning and urban design, land use and transportation, business and service planning, coupled human and natural systems, urban planning, socio-economic development, emergency response and hazards, and land and resource management. Examples of methodological approaches include decision support systems, geocomputation, spatial statistical analysis, complex systems and artificial intelligence, visual analytics and geovisualization, ubiquitous computing, and space-time simulation. Contributions emphasizing the development and enhancement of computer-based technologies for the analysis and modeling, policy formulation, planning, and management of environmental and urban systems that enhance sustainable futures are especially sought. The journal also encourages research on the modalities through which information and other computer-based technologies mold environmental and urban systems.

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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
Ecological Modeling	1999	Q4
Ecological Modeling	2000	Q3
Ecological Modeling	2001	Q1
Ecological Modeling	2002	Q3
Ecological Modeling	2003	Q2
Ecological Modeling	2004	Q2
Ecological Modeling	2005	Q2
Ecological Modeling	2006	Q2
Ecological Modeling	2007	Q2
Ecological Modeling	2008	Q2
Ecological Modeling	2009	Q2
Ecological Modeling	2010	Q2
Ecological Modeling	2011	Q2
Ecological Modeling	2012	Q2
Ecological Modeling	2013	Q2
Ecological Modeling	2014	Q2
Ecological Modeling	2015	Q1
Ecological Modeling	2016	Q1
Ecological Modeling	2017	Q1
Ecological Modeling	2018	Q1
Ecological Modeling	2019	Q1
Ecological Modeling	2020	Q1
Ecological Modeling	2021	Q1
Ecological Modeling	2022	Q1
Ecological Modeling	2023	Q1
Environmental Science (miscellaneous)	1999	Q2
Environmental Science (miscellaneous)	2000	Q1
Environmental Science (miscellaneous)	2001	Q1
Environmental Science (miscellaneous)	2002	Q2
Environmental Science (miscellaneous)	2003	Q1
Environmental Science (miscellaneous)	2004	Q1
Environmental Science (miscellaneous)	2005	Q1
Environmental Science (miscellaneous)	2006	Q1
Environmental Science (miscellaneous)	2007	Q1
Environmental Science (miscellaneous)	2008	Q1
Environmental Science (miscellaneous)	2009	Q1
Environmental Science (miscellaneous)	2010	Q1
Environmental Science (miscellaneous)	2011	Q1
Environmental Science (miscellaneous)	2012	Q1
Environmental Science (miscellaneous)	2013	Q1
Environmental Science (miscellaneous)	2014	Q1
Environmental Science (miscellaneous)	2015	Q1
Environmental Science (miscellaneous)	2016	Q1
Environmental Science (miscellaneous)	2017	Q1
Environmental Science (miscellaneous)	2018	Q1
Environmental Science (miscellaneous)	2019	Q1
Environmental Science (miscellaneous)	2020	Q1
Environmental Science (miscellaneous)	2021	Q1
Environmental Science (miscellaneous)	2022	Q1
Environmental Science (miscellaneous)	2023	Q1
Geography, Planning and Development	1999	Q2
Geography, Planning and Development	2000	Q1
Geography, Planning and Development	2001	Q1
Geography, Planning and Development	2002	Q1
Geography, Planning and Development	2003	Q1
Geography, Planning and Development	2004	Q1
Geography, Planning and Development	2005	Q1
Geography, Planning and Development	2006	Q1
Geography, Planning and Development	2007	Q1
Geography, Planning and Development	2008	Q1
Geography, Planning and Development	2009	Q1
Geography, Planning and Development	2010	Q1
Geography, Planning and Development	2011	Q1
Geography, Planning and Development	2012	Q1
Geography, Planning and Development	2013	Q1
Geography, Planning and Development	2014	Q1
Geography, Planning and Development	2015	Q1
Geography, Planning and Development	2016	Q1
Geography, Planning and Development	2017	Q1
Geography, Planning and Development	2018	Q1
Geography, Planning and Development	2019	Q1
Geography, Planning and Development	2020	Q1
Geography, Planning and Development	2021	Q1
Geography, Planning and Development	2022	Q1
Geography, Planning and Development	2023	Q1
Urban Studies	1999	Q2
Urban Studies	2000	Q2
Urban Studies	2001	Q1
Urban Studies	2002	Q2
Urban Studies	2003	Q1
Urban Studies	2004	Q1
Urban Studies	2005	Q1
Urban Studies	2006	Q1
Urban Studies	2007	Q1
Urban Studies	2008	Q1
Urban Studies	2009	Q1
Urban Studies	2010	Q1
Urban Studies	2011	Q1
Urban Studies	2012	Q1
Urban Studies	2013	Q1
Urban Studies	2014	Q1
Urban Studies	2015	Q1
Urban Studies	2016	Q1
Urban Studies	2017	Q1
Urban Studies	2018	Q1
Urban Studies	2019	Q1
Urban Studies	2020	Q1
Urban Studies	2021	Q1
Urban Studies	2022	Q1
Urban Studies	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	0.240
2000	0.596
2001	0.754
2002	0.440
2003	0.533
2004	0.670
2005	0.849
2006	0.693
2007	0.722
2008	0.750
2009	0.649
2010	0.941
2011	1.131
2012	1.001
2013	1.082
2014	0.852
2015	1.158
2016	1.152
2017	1.271
2018	1.240
2019	1.356
2020	1.549
2021	1.703
2022	1.567
2023	1.861

Total Documents

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

Year	Documents
1999	29
2000	30
2001	31
2002	27
2003	34
2004	31
2005	39
2006	51
2007	42
2008	43
2009	45
2010	47
2011	48
2012	57
2013	69
2014	51
2015	84
2016	70
2017	108
2018	95
2019	124
2020	84
2021	118
2022	104
2023	90

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	0.382
Cites / Doc. (4 years)	2000	0.644
Cites / Doc. (4 years)	2001	0.966
Cites / Doc. (4 years)	2002	1.242
Cites / Doc. (4 years)	2003	1.214
Cites / Doc. (4 years)	2004	1.631
Cites / Doc. (4 years)	2005	1.846
Cites / Doc. (4 years)	2006	2.374
Cites / Doc. (4 years)	2007	2.316
Cites / Doc. (4 years)	2008	2.117
Cites / Doc. (4 years)	2009	2.389
Cites / Doc. (4 years)	2010	2.823
Cites / Doc. (4 years)	2011	3.429
Cites / Doc. (4 years)	2012	3.858
Cites / Doc. (4 years)	2013	3.812
Cites / Doc. (4 years)	2014	3.529
Cites / Doc. (4 years)	2015	3.996
Cites / Doc. (4 years)	2016	4.264
Cites / Doc. (4 years)	2017	5.168
Cites / Doc. (4 years)	2018	5.233
Cites / Doc. (4 years)	2019	6.331
Cites / Doc. (4 years)	2020	6.068
Cites / Doc. (4 years)	2021	7.280
Cites / Doc. (4 years)	2022	8.045
Cites / Doc. (4 years)	2023	8.216
Cites / Doc. (3 years)	1999	0.382
Cites / Doc. (3 years)	2000	0.716
Cites / Doc. (3 years)	2001	0.989
Cites / Doc. (3 years)	2002	1.178
Cites / Doc. (3 years)	2003	1.284
Cites / Doc. (3 years)	2004	1.239
Cites / Doc. (3 years)	2005	2.076
Cites / Doc. (3 years)	2006	2.308
Cites / Doc. (3 years)	2007	2.306
Cites / Doc. (3 years)	2008	2.068
Cites / Doc. (3 years)	2009	2.140
Cites / Doc. (3 years)	2010	2.731
Cites / Doc. (3 years)	2011	3.659
Cites / Doc. (3 years)	2012	3.443
Cites / Doc. (3 years)	2013	3.717
Cites / Doc. (3 years)	2014	2.902
Cites / Doc. (3 years)	2015	4.040
Cites / Doc. (3 years)	2016	4.064
Cites / Doc. (3 years)	2017	5.039
Cites / Doc. (3 years)	2018	5.256
Cites / Doc. (3 years)	2019	5.619
Cites / Doc. (3 years)	2020	6.281
Cites / Doc. (3 years)	2021	7.231
Cites / Doc. (3 years)	2022	7.794
Cites / Doc. (3 years)	2023	8.340
Cites / Doc. (2 years)	1999	0.390
Cites / Doc. (2 years)	2000	0.619
Cites / Doc. (2 years)	2001	0.932
Cites / Doc. (2 years)	2002	1.197
Cites / Doc. (2 years)	2003	1.103
Cites / Doc. (2 years)	2004	1.279
Cites / Doc. (2 years)	2005	1.954
Cites / Doc. (2 years)	2006	2.257
Cites / Doc. (2 years)	2007	2.167
Cites / Doc. (2 years)	2008	1.817
Cites / Doc. (2 years)	2009	1.812
Cites / Doc. (2 years)	2010	2.773
Cites / Doc. (2 years)	2011	3.293
Cites / Doc. (2 years)	2012	3.379
Cites / Doc. (2 years)	2013	2.676
Cites / Doc. (2 years)	2014	2.881
Cites / Doc. (2 years)	2015	3.633
Cites / Doc. (2 years)	2016	4.104
Cites / Doc. (2 years)	2017	5.039
Cites / Doc. (2 years)	2018	4.438
Cites / Doc. (2 years)	2019	5.788
Cites / Doc. (2 years)	2020	5.890
Cites / Doc. (2 years)	2021	6.740
Cites / Doc. (2 years)	2022	7.450
Cites / Doc. (2 years)	2023	8.410

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	7
Self Cites	2000	7
Self Cites	2001	10
Self Cites	2002	3
Self Cites	2003	5
Self Cites	2004	13
Self Cites	2005	9
Self Cites	2006	16
Self Cites	2007	11
Self Cites	2008	8
Self Cites	2009	27
Self Cites	2010	21
Self Cites	2011	21
Self Cites	2012	17
Self Cites	2013	38
Self Cites	2014	23
Self Cites	2015	59
Self Cites	2016	60
Self Cites	2017	73
Self Cites	2018	74
Self Cites	2019	79
Self Cites	2020	121
Self Cites	2021	154
Self Cites	2022	127
Self Cites	2023	88
Total Cites	1999	34
Total Cites	2000	63
Total Cites	2001	92
Total Cites	2002	106
Total Cites	2003	113
Total Cites	2004	114
Total Cites	2005	191
Total Cites	2006	240
Total Cites	2007	279
Total Cites	2008	273
Total Cites	2009	291
Total Cites	2010	355
Total Cites	2011	494
Total Cites	2012	482
Total Cites	2013	565
Total Cites	2014	505
Total Cites	2015	715
Total Cites	2016	829
Total Cites	2017	1033
Total Cites	2018	1377
Total Cites	2019	1534
Total Cites	2020	2054
Total Cites	2021	2191
Total Cites	2022	2541
Total Cites	2023	2552

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	0.303
External Cites per document	2000	0.636
External Cites per document	2001	0.882
External Cites per document	2002	1.144
External Cites per document	2003	1.227
External Cites per document	2004	1.098
External Cites per document	2005	1.978
External Cites per document	2006	2.154
External Cites per document	2007	2.215
External Cites per document	2008	2.008
External Cites per document	2009	1.941
External Cites per document	2010	2.569
External Cites per document	2011	3.504
External Cites per document	2012	3.321
External Cites per document	2013	3.467
External Cites per document	2014	2.770
External Cites per document	2015	3.706
External Cites per document	2016	3.770
External Cites per document	2017	4.683
External Cites per document	2018	4.973
External Cites per document	2019	5.330
External Cites per document	2020	5.911
External Cites per document	2021	6.723
External Cites per document	2022	7.405
External Cites per document	2023	8.052
Cites per document	1999	0.382
Cites per document	2000	0.716
Cites per document	2001	0.989
Cites per document	2002	1.178
Cites per document	2003	1.284
Cites per document	2004	1.239
Cites per document	2005	2.076
Cites per document	2006	2.308
Cites per document	2007	2.306
Cites per document	2008	2.068
Cites per document	2009	2.140
Cites per document	2010	2.731
Cites per document	2011	3.659
Cites per document	2012	3.443
Cites per document	2013	3.717
Cites per document	2014	2.902
Cites per document	2015	4.040
Cites per document	2016	4.064
Cites per document	2017	5.039
Cites per document	2018	5.256
Cites per document	2019	5.619
Cites per document	2020	6.281
Cites per document	2021	7.231
Cites per document	2022	7.794
Cites per document	2023	8.340

% 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	17.24
2000	20.00
2001	6.45
2002	11.11
2003	11.76
2004	9.68
2005	25.64
2006	29.41
2007	11.90
2008	18.60
2009	31.11
2010	21.28
2011	39.58
2012	26.32
2013	31.88
2014	29.41
2015	32.14
2016	28.57
2017	37.96
2018	33.68
2019	39.52
2020	41.67
2021	49.15
2022	36.54
2023	38.89

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	2
Non-citable documents	2001	4
Non-citable documents	2002	4
Non-citable documents	2003	2
Non-citable documents	2004	1
Non-citable documents	2005	2
Non-citable documents	2006	8
Non-citable documents	2007	13
Non-citable documents	2008	17
Non-citable documents	2009	16
Non-citable documents	2010	11
Non-citable documents	2011	8
Non-citable documents	2012	7
Non-citable documents	2013	9
Non-citable documents	2014	7
Non-citable documents	2015	4
Non-citable documents	2016	4
Non-citable documents	2017	4
Non-citable documents	2018	6
Non-citable documents	2019	3
Non-citable documents	2020	3
Non-citable documents	2021	0
Non-citable documents	2022	0
Non-citable documents	2023	0
Citable documents	1999	89
Citable documents	2000	86
Citable documents	2001	89
Citable documents	2002	86
Citable documents	2003	86
Citable documents	2004	91
Citable documents	2005	90
Citable documents	2006	96
Citable documents	2007	108
Citable documents	2008	115
Citable documents	2009	120
Citable documents	2010	119
Citable documents	2011	127
Citable documents	2012	133
Citable documents	2013	143
Citable documents	2014	167
Citable documents	2015	173
Citable documents	2016	200
Citable documents	2017	201
Citable documents	2018	256
Citable documents	2019	270
Citable documents	2020	324
Citable documents	2021	303
Citable documents	2022	326
Citable documents	2023	306

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	68
Uncited documents	2000	56
Uncited documents	2001	47
Uncited documents	2002	48
Uncited documents	2003	39
Uncited documents	2004	43
Uncited documents	2005	31
Uncited documents	2006	22
Uncited documents	2007	37
Uncited documents	2008	47
Uncited documents	2009	42
Uncited documents	2010	26
Uncited documents	2011	24
Uncited documents	2012	30
Uncited documents	2013	30
Uncited documents	2014	44
Uncited documents	2015	25
Uncited documents	2016	19
Uncited documents	2017	17
Uncited documents	2018	35
Uncited documents	2019	23
Uncited documents	2020	34
Uncited documents	2021	21
Uncited documents	2022	17
Uncited documents	2023	13
Cited documents	1999	21
Cited documents	2000	32
Cited documents	2001	46
Cited documents	2002	42
Cited documents	2003	49
Cited documents	2004	49
Cited documents	2005	61
Cited documents	2006	82
Cited documents	2007	84
Cited documents	2008	85
Cited documents	2009	94
Cited documents	2010	104
Cited documents	2011	111
Cited documents	2012	110
Cited documents	2013	122
Cited documents	2014	130
Cited documents	2015	152
Cited documents	2016	185
Cited documents	2017	188
Cited documents	2018	227
Cited documents	2019	250
Cited documents	2020	293
Cited documents	2021	282
Cited documents	2022	309
Cited documents	2023	293