Data Sources and Citation Metrics
The 5th edition of the Research.com Best Earth Science Scientists in Korea Ranking is primarily based on comprehensive bibliometric data sourced from OpenAlex and CrossRef, supplemented by multiple other reputable data repositories. These platforms provide extensive coverage of publications, citation records, and related metadata, enabling a robust and accurate assessment of scientific output.
The bibliometric data utilized for developing the citation-based metrics were collected on January 12, 2026. Each scientist's position within the ranking is determined by their D-index (Discipline H-index), a refined metric that exclusively accounts for papers and citation counts relevant to the discipline under examination, ensuring a focused evaluation of research impact within Earth Science.
Scope of Research and Ranking Criteria
The ranking process entailed the examination of 279,971 scientist profiles identified from diverse bibliometric data sources across all scientific disciplines. Specifically, 17 scientists in the field of Earth Science were rigorously assessed for inclusion in the Korea edition.
To qualify for consideration in the ranking, a scientist’s D-index must meet or exceed a threshold of 30, and the majority of their tier publications are required to be concentrated in the Earth Science domain. Additionally, notable awards and professional achievements within the field were factored into the evaluation process to round out the quantitative assessment.
The threshold for the D-index is calibrated as increments of 10, tailored to the estimated total population of scholars in each discipline. This adaptive benchmark ensures inclusion of the top 1% of leading researchers while maintaining disciplinary relevance. Furthermore, a proximity criterion mandates that the gap between a scientist’s general H-index and their Earth Science-specific D-index remain within 30% to guarantee alignment of general and discipline-specific impact.
Verification and Validation Practices
Recognizing that raw bibliometric data alone cannot definitively evaluate a scholar’s output, our researchers have conducted extensive manual verification of all scientist profiles. Each profile was cross-correlated with publications documented in a wide spectrum of trustworthy sources to affirm accuracy and authenticity.
While the volume of publications in prominent journals and conference proceedings is not a direct factor influencing ranking position, it is nonetheless considered a significant secondary signal of a scientist’s contribution to their field. The ranking’s primary positioning metric remains the researcher’s D-index derived from bibliometric information collected from OpenAlex and CrossRef, two of the most prominent and respected bibliometric databases available to the global research community.
For a detailed explanation of the methodology employed, please visit our methodology page.
Research.com’s Mission and Agenda
Research.com’s overarching mission in creating this ranking is to inspire researchers, industry leaders, and policymakers worldwide to closely examine the trajectories of leading experts in various scientific fields. Our goal is to provide a transparent and accessible platform that not only identifies top researchers by discipline and geography but also fosters informed decision-making and collaboration throughout the global scientific community.
By highlighting the excellence of Earth Science researchers in Korea, we aim to encourage stronger research networks, strategic partnerships, and targeted investments that can advance scholarship and innovation at institutional, national, and international levels.
