Members who are scientifically or socially distinguished are bestowed the honor of AAAS Fellow by the AAAS Council for efforts on behalf of the advancement of science or its applications. Areas where Fellows may have made significant contributions are research; teaching; technology; services to professional societies; administration in academe, industry, and government; and communicating and interpreting science to the public.

To be elected a Fellow of AGU is a special tribute for those who have made exceptional scientific contributions. Nominated Fellows must have attained acknowledged eminence in the Earth and space sciences. This designation is conferred upon not more than 0.1% of all AGU members in any given year. New Fellows are chosen by a Committee of Fellows.

Fellows are selected for their outstanding contributions to the atmospheric sciences and/or their application during a substantial period of years. Only two-tenths of one percent of AMS membership are approved as Fellows each year.

This national and international leadership is documented by notable contributions to research published in leading journals and/or books and creative accomplishments widely recognized for excellence; prestigious awards and citations; and a substantial record of invited lectures or performances delivered at prestigious institutions. These individuals also demonstrate significant leadership by raising University standards with respect to teaching, research or creative activity, and service; cultivating excellent teaching skills; and contributing significantly to the education of students who later are recognized for excellence in their fields.