SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.
A distinctive feature of Marine Pollution Bulletin is the number of different categories of articles which are published. Papers ('Reports') form the core of the journal, while 'Baselines' document measurements which are expected to have value in the future. 'Reviews' are generally invited by the editors on subjects which cross traditional lines, but suggestions for topics are welcomed. 'Viewpoints' are a less formal forum for scientists to comment freely on matters of relevant national and international importance. Other sections of the Bulletin include 'News', 'New Products', 'Conference Reports', 'Conference Diary', 'Correspondence' and 'Book Reviews'. Two volumes are published annually, one of which contains a series of special issues on topics of particular current interest. The importance and influence of these special issues, which address the major marine environmental concerns of our time, is increasingly being recognised not just by the wider scientific community, but also by environmental policy makers at national and international level.
Benefits to authors We also provide many author benefits, such as free PDFs, a liberal copyright policy, special discounts on Elsevier publications and much more. Please click here for more information on our author services.