Data Sources and Metrics Basis
The 5th edition of the Research.com Best Earth Science Scientists in Costa Rica Ranking is primarily constructed using comprehensive bibliometric data obtained from leading platforms such as OpenAlex and CrossRef, complemented by multiple other reputable data sources. The citation-based metrics that serve as the foundation of this ranking were meticulously collected on January 12, 2026. Central to the evaluation methodology is the D-index (Discipline H-index), a refined metric that measures research impact by considering only the publications and citation records within the specific discipline of Earth Science. This approach ensures that the ranking accurately reflects a researcher’s influence and contributions in their field of expertise.
Scope of Research and Eligibility Criteria
The ranking process examined a total of 279,971 scientist profiles aggregated from a diverse range of bibliometric databases spanning all academic disciplines. Within the context of Earth Science, two hundred scientists were specifically evaluated. To qualify for inclusion in the ranking, researchers were required to possess a D-index of at least 30, with the majority of their tier publications devoted to Earth Science. Additionally, recognition of a scientist’s awards and notable achievements within the field served as a supplementary consideration. The threshold for the D-index used to select top researchers is calibrated in increments of 10, tailored according to the estimated total number of scholars in each discipline, thereby ensuring that the top 1% of leading researchers are represented. Furthermore, eligibility criteria include maintaining a proximity threshold of 30% or less between a scientist’s overall general H-index and their Earth Science-specific D-index, optimizing the alignment between general impact and disciplinary specialization.
Verification and Quality Assurance
Recognizing that raw bibliometric data cannot serve as an absolute measure of scholarly output or quality, the team behind this ranking employed rigorous manual verification processes alongside algorithmic analysis. Each scientist’s profile was manually reviewed and cross-referenced against publication records from a broad spectrum of credible, authoritative sources to validate accuracy and authenticity. While the number of articles published in high-impact journals and leading conference proceedings is not directly factored into the ranking position, these indicators remain valuable secondary signals of a researcher’s influence and contributions to their scientific domain. The ranking position itself is ultimately determined using the D-index derived from trusted sources, OpenAlex and CrossRef, which are widely recognized as the most prominent bibliometric databases accessible to the global research community. For readers seeking a deeper understanding of the comprehensive methodology underlying this ranking, please refer to our methodology page.
Research.com’s Mission
The creation of this ranking is driven by Research.com’s mission to inspire and empower researchers, industry leaders, policymakers, and academic institutions worldwide to identify and follow the trajectories of leading scientific experts. By systematically pinpointing who the foremost authorities are across specialized fields, countries, and institutions, we provide a transparent and reliable resource that fosters collaboration, innovation, and strategic decision-making within the global scientific community. This ranking reflects our commitment to meticulous data curation and validation, presented with the highest standards of credibility and professionalism.
