What's New in Journal Citation Reports?

2018 JCR RELEASE

This release of Journal Citation Reports provides 2017 data. The 2018 data will be made available in the 2019 Journal Citation Reports release.

October 17, 2018 JCR Data update

This release contains an update to the 2017 dataset;  26 journals are added with completed information. The 2017 JCR data (2018 release) is now complete and all updates have been fully incorporated into the product. 

We have made the following improvements to the data and calculations in the JCR journal data. 

  • The Article Citation Median and Review Citation Median metrics on the Citation Distribution graph will now show a value “n/a” if no items of that type were counted in the JIF denominator. This allows you to quickly distinguish between a median of 0 (zero), and an absence of any documents of that type.
  • Cited half-life and Citing half-life are now calculated to their precise values. Historically, the JCR data would calculate and display a cited half-life up to 10.0 years.  If citations to ten prior years did not account for at least 50% of the citations received, the value displayed was “>10.0” indicating that the half-life was more than 10 years.  Now, we have completed the calculation so that the actual median age is shown.  See Cited Journal data, and Citing Journal data for more details about half-life.

These updates affect 2017 and on-going data years.  They will not apply to prior years. 

October 03, 2018

We are continuously working on making JCR even better with every update and with this release, we are introducing some key features:

  • "Printable version" links are now available in the new JCR profile page, allowing users to print the entire page or individual visualizations that could be use as handouts or integrated in your presentations
  • The key indicator metrics currently visible in the legacy profile page is now also visible in the new JCR profile page. This ensures a user doesn't have to move back and forth between the legacy profile page and the new profile page.
  • Items published in the two years prior to the JIF that received no citations are now displayed in full.  These "Uncited items" constitutes a new metric - as well as reinforcing the variable role of "non-citable" content in the determination of Impact. The “0 Times Cited” tile shows a breakdown of the uncited items per article, review and "other"; it is available in the Citation Distribution - Expanded View visualization.

Please review the JCR profile page for detailed updates.

Journals appearing in JCR

A complete list of the titles covered in this year's JCR is available here.

A list of journals receiving their first Impact Factor is available here.

This release of the JCR also includes the following new features:

  • Enhanced journal profile page with detailed data and visualization of the content, countries and organizations that contribute to a journal’s impact. Click here for more details and here for a quick tour.
  • Complete article data, with “View in WoS” and export on all materials contributing to the Journal Impact Factor calculation
  • Citations from materials index in the Book Citation Index are included in all citation metrics, including Journal Impact Factor.  
    • Science Edition: 
      • 59.5 million citations reported; 976,298 (1.6%) from Book Citation Index
      • 9.4 million citations in Journal Impact Factor numerators; 80,470 (0.9%) from Book Citation Index
    • Social Sciences Edition:
      • 7.09 million citations reported; 291,245 (4.1%) from Book Citation Index
      • 988,515 million citations in Journal Impact Factor numerators; 15,507 (2.3%) from Book Citation Index

2017 JCR RELEASE

This release of Journal Citation Reports provides 2016 data. The 2017 data will be made available in the 2018 Journal Citation Reports release.

Journals appearing in JCR

A complete list of the titles covered in this year's JCR is available here.

A list of journals receiving their first Impact Factor is available here.

This release of the JCR also includes the following new features:

JCR Data Update (September 25, 2017)

After JCR data were published in June 2017, we were able to obtain materials whose absence had prevented journals from receiving a Journal Impact Factor, as well as to correct metrics for a small number of journals.  The 2016 JCR data (2017 release) are now complete and all updates have been fully incorporated into the product.

After 2016 JCR data were reloaded and finalized in September 2017, we became aware of a newly occurring and unanticipated cited work variant for Astronomical Journal, which caused a significant undercounting of citations. The following metrics include all citations associated with the new variant:

ASTRON J 

  • Total citations:                32263 
  • Journal Impact Factor:    3.773 
  • 5-year Impact Factor:      4.143 
  • Immediacy Index:            1.085

July 14, 2016

JCR 2015 metrics can now be downloaded from the application.

June 13, 2016 

2016 JCR Release

This release of Journal Citation Reports provides 2015 data. The 2016 data will be made available in the 2017 Journal Citation Reports release.

Journals appearing in JCR

A complete list of the titles covered in this year's JCR is available at: http://about.jcr.incites.thomsonreuters.com/full-titles-2016.pdf

A list of journals receiving their first Impact Factor is available at: http://about.jcr.incites.thomsonreuters.com/new-journals-2016.pdf

This release of the JCR also includes new category, Green & Sustainable Science & Technology.

September 10, 2015

This release of Journal Citation Reports includes the following:

August 9, 2015

This release of Journal Citation Reports includes the following:

      • Persistent filters on the Journal and Category Rank pages, allowing users to drill deeper into date and navigate away from a page without losing the filters already implemented.  

2015 JCR Release

This release of Journal Citation Reports provides 2014 data. The 2015 data will be made available in the 2016 Journal Citation Reports release.

Journals appearing in JCR

A complete list of the titles covered in this year's JCR is available at: http://about.jcr.incites.thomsonreuters.com/full-titles-2015.pdf

A list of journals receiving their first Impact Factor is available at: http://about.jcr.incites.thomsonreuters.com/new-journals-2015.pdf

Expanded Metrics and New Features

  • Normalized Eigenfactor® is the Eigenfactor Score normalized, by rescaling the total number of journals in the JCR each year, so that the average journal has a score of 1. Journals can then be compared and influence measured by their score relative to 1. Available in both the Journal Rankings grid and on Journal Profile Pages.
  • Percentage of Articles in Citable Items gives information on what proportion of a journal’s citable items are Articles vs. Reviews. Available in both the Journal Rankings grid and on Journal Profile Pages.
  • Journal Impact Factor Percentile transforms the rank in category by Journal Impact Factor into a percentile, allowing more meaningful cross-category comparison.

New Features:

  • Open Access Filter and Badge - sort results by Open Access status and immediately identify Open Access journals by the badge on the Journal Profile page. 


  • New Data Downloads - On the journal profile page, users can elect to download the cited and citing data tables in CSV/XLS format. The Journal Relationships visualization is now downloadable in PDF format. 

  • Navigating Year-to-Year in the Journal Profle Page - view data that reflects the year of your choice by clicking the hyperlinked year in the Key Indicators table. 

  • Citable Items Document Page - now features the document type and allows filtering based on document type.