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
Founded in 1970, the Journal of Aerosol Science considers itself the prime vehicle for the publication of original work as well as reviews related to basic and applied aerosol research. Its content is directed at scientists working in areas such as physics, chemistry, engineering, applied mathematics, aerobiology, medicine, industrial and environmental hygiene, toxicology, or materials processing.
• The basic physical, chemical and biological properties of systems of airborne particles of all types,
• Their measurement,
• Their formation, transport, deposition and effects,
• Their industrial, environmental and medical applications.
Beside originality, a very important criterion for acceptance of a submission is its ability to communicate conclusions of general relevance to a given field. On the other hand, the Journal is not intended to archive data such as environmental measurements from specific geographical regions, unless new methodologies are involved or broadly relevant new conclusions are reached.