Bibliometrics is not that useful for the stated purpose. Scientometrics, on the other hand, is a more adequate discipline to measure scientific activity and even better, scientific research impact, for instance. The term scientometrics originates in the works of Nalimov, D.J.D. Price y Eugene Garfield in the 50's and in its simplest form, has to do with the count of articles produced and published by a a number of researchers. James McKeen Cattell, editor of Science from 1895 to 1944, was the first to systematically collect data on scientific production between 1906 until 1930, on thousands of researchers, geographical location, quantity of papers published by author, etc. (Godin, 2006)

For instance, you can use Publish or Perish®, which is a SW program you can use to know papers published by selected authors, total cites per author, total cites for paper, average cites per author, impact as measured by different indexes like índice H (Hirsch), E (Zhang), G (Egghe), and so on so forth.

Other measures of scientific activity can be derived from data sets concerning to number and amounts of research grants awarded, graduating PhDs in a given country or period, patents filed, just to name a few. Then, there are web sites like scimagojr which is a portal that includes the journals and country scientific indicators developed from the information contained in the Scopus® database (Elsevier B.V.). Indicators that you can be use to assess and analyze scientific activity.

Well you get the idea of what I am trying to convey. I included a couple of links. Hope this is useful. Good luck!

http://www.harzing.com/resources/publish-or-perish

http://www.scimagojr.com

In the context where bibliometric indicators are highly affected by self-citations or the analysis wishes to evaluate the international evaluation of research, I would say that bibliometrics are not the most suitable tools. Yet citation analysis might be. For further details please see my most recently paper http://link.springer.com/article/10.1007/s11192-016-1949-7

New research metrics was introduced recently. CiteScore metrics.

http://communications.elsevier.com/nl/jsp/m.jsp?c=%4087MYQuefikLpoi5WHvgstVpzcnhA%2BuV593vov1GcFtU%3D&utm_campaign=2016%20Scopus%20Newsletter&utm_campaignPK=160232092&utm_term=OP18752&utm_content=302514540&utm_source=71&BID=900566497&utm_medium=email&SIS_ID=0

https://libraryconnect.elsevier.com/metrics?utm_campaign=Library%20Connect%20Newsletter&utm_campaignPK=165517338&utm_term=OP19251&utm_content=300430040&utm_source=32&BID=893838258&utm_medium=email&SIS_ID=0&dgcid=Newsletters%20%26%20Alerts_email_Library%20Connect%20Newsletter

Dear All,

There is a recently created term "citescore", I think it is more reliable and useful evaluation parameter, please see the attached definition of the above mentioned term.

Regards, Emad

www.scopus.con/sources