Data Sources and Bibliometric Basis
The 5th edition of the Research.com Best Environmental Sciences Scientists in Turkey Ranking is grounded on comprehensive bibliometric data primarily sourced from OpenAlex and CrossRef, complemented by multiple additional reputable data sources. These platforms are recognized for their extensive coverage and reliability in providing scientific publication and citation data. The bibliometric information used to construct citation-based metrics for this ranking was meticulously collected on January 12, 2026. A key metric employed to determine a scientist’s position within the ranking is the D-index (Discipline H-index), which specifically incorporates papers and citation metrics directly relevant to the Environmental Sciences discipline under review.
Scope of Research and Qualification Criteria
Our analysis encompassed an extensive pool of 279,971 scientist profiles derived from a diverse range of bibliometric sources spanning all scientific disciplines. From this broad base, 12 scientists specializing in Environmental Sciences in Turkey were examined in detail for inclusion in the current ranking.
To qualify for the ranking, a scientist must have achieved a minimum D-index of 30, ensuring that the research output and influence are substantial within the Environmental Sciences. Furthermore, the majority of each qualifying scientist’s tier publications—those representing their most impactful work—must be concentrated in the Environmental Sciences domain. Awards and notable professional achievements within this field were also considered to further validate the significance of their contributions.
The threshold for the D-index is dynamically set in increments of 10 based on the estimated total number of active scholars within the discipline. This approach guarantees that the top 1% of leading researchers in Environmental Sciences are captured in the ranking, while maintaining a proximity margin of no more than 30% between a scientist’s general H-index and their discipline-specific D-index, reflecting a focused academic influence.
Additional Verification and Methodological Rigor
Recognizing that raw bibliometric data alone can never fully encapsulate the quality and impact of a researcher’s output, all scientist profiles were subject to rigorous manual verification processes. This included cross-correlation of publication records against a wide array of trusted and authoritative sources to confirm accuracy and relevance.
While the number of publications in prominent journals and conference proceedings does not directly influence a researcher’s rank, it serves as a valuable secondary indicator of their scholarly contribution within Environmental Sciences. The ranking positions are ultimately determined by the D-index calculated from data openly available on OpenAlex and CrossRef — two of the most respected and widely used bibliometric databases by the global research community.
For a detailed overview of the methodology employed in creating this ranking, readers are encouraged to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to inspire researchers, industry leaders, and policymakers worldwide to engage with the trajectories of leading scientific experts. By illuminating who the foremost specialists are in specific fields, across various countries or institutions, we provide the scientific community with a transparent and credible resource to identify top-tier talent and thought leadership.
Through this ranking, we aim to foster a deeper understanding and recognition of excellence within Environmental Sciences, facilitating collaboration, funding, and informed decision-making across the scientific and broader stakeholder ecosystem.
