Data Sources and Ranking Methodology
The 5th edition of the Research.com Best Environmental Sciences Scientists in Korea Ranking is built upon a comprehensive foundation of bibliometric data primarily sourced from OpenAlex and CrossRef, complemented by multiple other reputable databases. The citation-based metrics utilized to devise the ranking were collected meticulously on January 12, 2026, ensuring the most current and accurate data was employed. A scientist’s position within this ranking is determined by their D-index (Discipline H-index), which exclusively accounts for papers and citations relevant to the Environmental Sciences discipline, thereby providing a focused and precise measure of domain-specific research impact.
Scope of Research and Qualification Criteria
This ranking examines an extensive pool of 279,971 scientist profiles identified from a diverse range of bibliometric data repositories spanning all research disciplines. Within this cohort, 70 scientists specializing specifically in Environmental Sciences were evaluated. To qualify for inclusion, a scientist must have achieved a D-index of at least 30, with the majority of their tier publications concentrated within the Environmental Sciences. Additionally, a researcher’s awards and notable achievements in the field were factored into the selection process.
The minimum D-index threshold for qualifying as a top researcher is adapted incrementally in steps of 10, reflecting the total number of scholars estimated within each discipline. This approach guarantees that the top 1% of leading experts are included in the ranking. Furthermore, to ensure alignment between general and discipline-focused impact, the proximity between a scientist’s overall H-index and their D-index is maintained at 30% or less.
Verification and Validation Practices
Understanding the inherent limitations of raw bibliometric data as an absolute evaluative tool, the research team undertook comprehensive manual verification of all scientist profiles. Each profile was cross-correlated with publications drawn from a broad spectrum of trustworthy academic sources to ensure accuracy and authenticity. While the number of papers published in prominent journals and conference proceedings does not directly influence a researcher’s rank, it provides a valuable secondary indicator of their contribution to Environmental Sciences.
The rankings are ultimately established based on each researcher’s D-index derived from OpenAlex and CrossRef—recognized as the most authoritative and widely used bibliometric databases in the research community. For an in-depth understanding of the methodology employed, readers are encouraged to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to inspire researchers, corporate entities, and policymakers globally to closely examine the trajectories of leading experts. We strive to provide the entire scientific community with transparent and reliable insights into who the foremost specialists are within specific research fields, geographic regions, and research institutions. This ranking embodies our commitment to fostering informed collaboration, resource allocation, and strategic decision-making within the global knowledge ecosystem.
