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
A well-established international quarterly, the Journal of Historical Geography publishes articles on all aspects of historical geography and cognate fields, including environmental history. As well as publishing original research papers of interest to a wide international and interdisciplinary readership, the journal encourages lively discussion of methodological and conceptual issues and debates over new challenges facing researchers in the field. Each issue includes a substantial book review section, and there is a regular feature on 'Historical Geography at Large' devoted to the public impact of research in the field.
Themes covered in the Journal include:
• The geographies of places and environments in the past • The dynamics of place, space and landscape • Historiography and philosophy of historical geography • Methodological challenges and problems in historical geography • Landscape, memory and environment
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