The graph shows the changes in the impact factor of Hydrogeology Journal and its the corresponding percentile for the sake of comparison with the entire literature. Impact Factor is the most common scientometric index, which is defined by the number of citations of papers in two preceding years divided by the number of papers published in those years.
How Influential is Hydrogeology Journal?
Hydrogeology Journal is the 1st out of 2 Hydrogeology journals. This Journal is the 50th out of 509 Geology journals. This means the journal is among the top 10% in the sub-discipline of Geology. This Journal is the 104th out of 1,091 Earth Science journals. This means the journal is among the top 10% in the discipline of Earth Science. This Journal is the 1687th out of 11,479 Physical Sciences journals. This means the journal is among the top 15% in the science branch of Physical Sciences.
How are inpact factors calculated?
The impact factor (IF) is calculated by counting citations from peer-reviewed journals only.
extended IF also counts citations from books and conference papers. However, no patent, abstract, working papers, online documents, etc., are covered.
