A researcher’s position within the ranking is determined exclusively by their D-index (Discipline H-index), a specialized metric that captures a scholar’s impact within a specific discipline. Unlike a general H-index, the D-index only incorporates publications and citation data pertinent to the Environmental Sciences discipline, ensuring that the evaluation reflects domain-specific academic influence and contributions.
Scope of Research and Eligibility Criteria
The ranking assesses a total of 279,971 scientist profiles compiled from a wide spectrum of bibliometric data sources spanning all academic disciplines. Among these, 1,876 researchers specializing in Environmental Sciences were thoroughly examined for inclusion.
To qualify for the ranking, a scientist must meet the following criteria:
- Possess a D-index of at least 30, reflecting a substantial record of impactful work within Environmental Sciences.
- Have the majority of their top-tier publications concentrated in the area of Environmental Sciences, ensuring disciplinary relevance.
- Demonstrate recognized awards and achievements within Environmental Sciences, underscoring significant contributions to the field.
The D-index threshold is carefully calibrated as an increment of 10 based on the estimated total number of scholars in each discipline. This dynamic adjustment ensures that the top 1% of leading scholars in Environmental Sciences are comprehensively incorporated, maintaining the exclusivity and rigor of the ranking.
Furthermore, to verify disciplinary focus consistency, the gap between a scientist’s general H-index and their Discipline-specific D-index must not exceed 30%, thereby ensuring a close alignment between overall scholarly impact and discipline-centered excellence.
Verification and Validation Procedures
Recognizing that raw bibliometric data alone cannot offer a definitive evaluation of a scholar’s academic output, the Research.com team has undertaken meticulous manual verification of all scientist profiles included in the ranking. Each profile was thoroughly cross-referenced against publications indexed across a broad array of trustworthy bibliographic sources to validate accuracy and integrity.
While the number of papers published in high-impact journals and leading conference proceedings does not directly affect the ranking positions, it is regarded as a valuable secondary indicator of a scientist’s contribution to advancing Environmental Sciences. This complementary assessment highlights the breadth and quality of scholarly output beyond citation metrics.
The ranking position is ultimately established through the D-index, derived from data aggregated from OpenAlex and CrossRef, the most respected bibliometric databases currently accessible. For in-depth details regarding the methodology employed in this ranking, please visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to motivate researchers, industry leaders, policymakers, and academic institutions worldwide to gain clear insight into the trajectories of leading experts across disciplines and geographies. By providing a transparent and rigorous ranking of top Environmental Sciences scientists in Oman, we aim to foster recognition and facilitate networking among the scientific community.
We envision a global research ecosystem where stakeholders can readily identify and engage with eminent scholars, thereby accelerating innovation, informed decision-making, and collaborative progress. This ranking exemplifies our commitment to delivering meticulously researched, credible, and actionable academic intelligence to empower informed choices and stimulate excellence in research.
