H-index = scholarly impact
A scientist has index h if h of [his/her] Np papers have at least h citations each, and the other (Np − h) papers have at most h citations each.
The H-Index was developed by Jorge Hirsch in his quest to find a better way to rank authors within their field.
As described in the linked article from Wired Magazine, H-Index rankings do seem to generally mirror scholarly success, but with an advantage to authors who have published longer.
Since publishing output varies by discipline, authors' H-Index rankings should only be compared within a discipline.
Resources to access the H-Index are listed below:
With the altmetrics movement, there have been many new sources and information products that compute impacts of different kinds. The following products are certainly worth keeping on your radar:
Using Citation Metrics to determine Author Impact can help scholars not only identify significant voices in their field, but also provide one indicator of an author's perceived value - by demonstrating where and how one's work has been cited. Citation metrics have been applied for purposes of hiring, promotion and tenure.
Citation Databases and Indices can be used to:
Recommended Tools include:
Scopus Profile - Many authors have similar names. The Scopus Author Identifier distinguishes between these names by assigning each author in Scopus a unique number and grouping together all of the documents written by that author.
Some features in Scopus, such as alerts and saved searches, are available only if you register. Registration is a one-time activity. The information you enter is stored in your Scopus profile. To edit your profile, click Settings | Modify personal details.
ORCID - Provides a persistent digital identifier that distinguishes you from every other researcher and, through integration in key research workflows such as manuscript and grant submission, supports automated linkages between you and your professional activities ensuring that your work is recognized.
No one tool will provide complete information about an author's citations. Each database only searches material in that database. It is best to explore multiple sources.
Also remember that citation counts never tell the whole story. They don't indicate why a item was cited or how significant or positive the reference was, and the indices that measure author impact often don't consider the duration of an author's career. Lastly, citation counts and indices only should be compared within an academic discipline. Publishing patterns in physics, for example, differ from those in Sociology.
Publish or Perish (PoP) is a free download created by Anne-Wil Harzing that uses Google Scholar to gather data and measure author impact. It uses various metrics including alternatives to the H-Index.
ResearcherID is a global, multi-disciplinary scholarly research community. With a unique identifier assigned to each author in ResearcherID, you can eliminate author misidentification and view an author's citation metrics instantly. Search the registry to find collaborators, review publication lists and explore how research is used around the world.
Manage your citation metrics using ResearcherID. You can add automatically track citation counts and add your publications directly from Web of Science searches. Registration is free and allows you to manage your publication list and on-line profile and find collaborators.