Scopus journal ranking functionality includes the following:
The Google Scholar Journal Ranking List uses the h5-index which is similar to the h-index author metric. Use the "Categories" drop down menu to filter by discipline.
H5-index "is the largest number h such that h articles published in [the past 5 years] have at least h citations each". Thus, an H5-index of 60 means that that journal has published 60 articles in the previous 5 years that have 60 or more citations each.
H5-median is based on H5-index, but instead measures the median (or middle) value of citations for the h number of citations. A journal with an H5-index of 60 and H5-median of 75 means that, of the 60 articles with 60 or more citations, the median of those citation values is 75.