A scientist’s position within the ranking is determined by their Discipline H-index, or D-index, which uniquely focuses on citation metrics and publications within the specific field of Environmental Sciences. This ensures that the ranking reflects specialized impact rather than general scholarly output.
Scope of Research and Qualification Criteria
To create an inclusive yet rigorous ranking, a total of 279,971 scientist profiles from diverse bibliometric sources spanning all scientific disciplines were initially examined. Within this extensive pool, 1,234 scientists identified as active contributors to Environmental Sciences were evaluated in detail.
Scientists qualify for this ranking by meeting a minimum D-index threshold of 30. Additionally, to ensure relevance, the majority of their tier publications must be within Environmental Sciences. Awards and achievements specifically related to this discipline were also considered as part of the evaluation process.
The D-index threshold is not static but adjusts in increments of 10 relative to the estimated number of scholars within each discipline. This methodology guarantees that the top 1% of leading Environmental Sciences researchers are incorporated into the ranking. Furthermore, for consistency and disciplinary focus, a scientist’s general H-index and their D-index must not differ by more than 30%.
Verification and Validation Practices
Recognizing that raw bibliometric data can never serve as an absolute measure of scholarly output, the researchers behind this ranking undertook additional manual verification processes. Each scientist profile was meticulously cross-referenced and validated against a wide array of trustworthy publication sources to mitigate errors and ambiguities.
Although the total number of publications appearing in prominent journals and conference proceedings does not directly affect a researcher’s position in the ranking, it is acknowledged as a valuable secondary indicator of a scientist’s contributions within the Environmental Sciences.
The ranking position itself is established primarily using each researcher’s validated D-index as calculated from data gathered via OpenAlex and CrossRef, which are widely regarded as the most prominent and reliable bibliometric databases accessible to the global research community.
For detailed information regarding the ranking methodology, please visit our methodology page.
Research.com’s Mission and Vision
Research.com is committed to motivating researchers, corporations, and policymakers worldwide to recognize and follow the trajectories of leading experts across disciplines. Our objective is to provide the scientific community and its stakeholders with transparent, data-driven access to identify top specialists in specific fields, across different countries, and within individual research institutions.
By fostering awareness of scholarly excellence through rigorous and carefully curated rankings such as this, Research.com aims to empower informed decision-making, encourage collaborative opportunities, and ultimately contribute to the advancement of scientific knowledge globally.
