Bibliometrics are a range of quantitative measures that assess the impact of research outputs using citation counts. Together with qualitative indicators of research impact such as funding received, number of patents, awards granted and peer review they assess the quality and impact of research.
Bibliometrics can be used to :
Bibliometrics are quantitative measures that provide just one part of the picture. Ideally they should be used in conjunction with other data such as funding received, number of patents, awards granted and peer review.
Some Limitations of Bibliometrics
For more check out these source's:
https://www.sheffield.ac.uk/library/research/metrics/intro
https://library.leeds.ac.uk/info/1406/researcher_support/17/measuring_research_impact
University Rankings Data: A Closer Look for Research Leaders (elsevier.com)