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
Global Environmental Change is a peer-reviewed international journal publishing high quality, theoretically and empirically rigorous articles, which advance knowledge about the human and policy dimensions of global environmental change. The journal interprets global environmental change to mean the outcome of processes that are manifest in localities, but with consequences at multiple spatial, temporal and socio-political scales. The journal is interested in articles which have a significant social science component. These include articles that address the social drivers or consequences of environmental change, or social and policy processes that seek to address problems of environmental change. Topics include, but are not restricted to, the drivers, consequences and management of changes in: biodiversity and ecosystem services, climate, coasts, food systems, land use and land cover, oceans, urban areas, and water resources.
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