Ranking positions are determined by aggregating the D-indexes (Discipline H-index) of all ranking scholars affiliated with a given institution whose principal area of publication lies within Environmental Sciences. The D-index is designed to exclusively consider publications and their respective citations that fall within the specific field under examination, ensuring precision and discipline-specific relevance.
Scope of Research and Analytical Criteria
The scope of the ranking incorporates a thorough analysis of 279,971 scientist profiles identified across numerous bibliometric data platforms. Of these, 17,263 scientists specializing in Environmental Sciences were analyzed in detail. To ensure a high standard of inclusion, a qualifying D-index threshold of 30 was set, with the requirement that the majority of each candidate’s publications must be in Environmental Sciences.
Additional criteria incorporated into the evaluation include the scientists’ professional recognitions and notable achievements within the Environmental Sciences domain. The D-index threshold for top researchers is adjusted in increments of 10, proportional to the total scholar population in each discipline, ensuring that at minimum the leading 1% of scholars are represented. Furthermore, a proximity of 30% or less is maintained between a scientist’s general H-index and their D-index, safeguarding the relevance of their contribution to the field. Recognition of awards and achievements also plays a supplementary role in profiling each researcher.
Verification Practices and Data Reliability
The creators of the ranking acknowledge that raw bibliometric data should not be used as the sole metric for evaluating scholarly output. Therefore, every scientist’s profile underwent extensive manual verification and was cross-referenced against publications appearing in a broad selection of esteemed academic sources.
Though the volume of publications in prominent journals and conference proceedings does not influence ranking position directly, it provides valuable supplementary insight into each scientist’s broader impact within their field.
Rank positions are established using each researcher’s H-index, based on information sourced from OpenAlex and CrossRef, recognized as two of the foremost bibliometric databases available to the academic community. For additional information regarding the analytical approach and its underlying philosophy, we invite you to review the details on our methodology page.
Research.com’s Mission and Agenda
At Research.com, our agenda is rooted in the motivation to empower scientists, industry leaders, and policy makers worldwide by providing clarity on the directions pursued by top experts. We strive to offer the research community valuable tools to identify leading authorities in specific scientific disciplines, across international arenas and within individual institutions, fostering collaboration, recognition, and the advancement of science.
Key Results of the 4th Edition Environmental Sciences University Ranking in Australia
-
Top 3 Australian institutions by number of leading environmental scientists:
- University of Queensland – 21 scientists
- University of New South Wales – 20 scientists
- Australian National University – 17 scientists
-
Most prominent global institutions represented by leading Environmental Sciences scholars:
- California Institute of Technology
- Harvard University
- Rice University
- University of Almería
- University of Helsinki
- Korea University
- University of East Anglia
- University at Albany, State University of New York
- Pennsylvania State University
- University of Colorado Boulder
-
Top scientists worldwide in Environmental Sciences:
- Professor P. Ciais (French Alternative Energies and Atomic Energy Commission, CEA) – D-index: 207
- John H. Seinfeld (California Institute of Technology) – D-index: 194
- Daniel J. Jacob (Harvard University) – D-index: 191
-
Key statistics:
- Average total D-index for top 5% universities: 2061
- Average total D-index for all 1001 institutions: 318
- Average number of published articles in Environmental Sciences by top 5% universities: 7534
- Average for all 1001 universities: 1185
- Average number of citations for researchers at top 1% universities: 279,971
- Average for all 1001 universities: 83,066
This ranking reflects the meticulous efforts invested in collecting, verifying, and synthesizing data, providing a credible and robust framework for the assessment of excellence in Environmental Sciences research across Australian and global academic institutions.
