Data Sources and Citation Metrics
The 5th edition of the Research.com Best Environmental Sciences Scientists in India ranking primarily relies on comprehensive bibliometric data sourced from OpenAlex and CrossRef, alongside multiple other reputable data repositories. The bibliometric data used to devise citation-based metrics were meticulously collected on January 12, 2026. A scientist’s position in the ranking is determined by their D-index (Discipline H-index), a refined metric that accounts exclusively for papers and citation counts relevant to the examined discipline, ensuring an accurate reflection of scholarly impact within Environmental Sciences.
Scope of Research and Inclusion Criteria
This ranking was developed by analyzing 279,971 scientist profiles identified through a broad spectrum of bibliometric data sources, spanning all academic disciplines. Specifically, 105 scientists specializing in Environmental Sciences were examined in detail. To qualify for inclusion, a scientist was required to have a D-index of at least 30, with the majority of their tier publications concentrated firmly within the Environmental Sciences domain. Further consideration was given to distinguished awards and notable achievements pertinent to this field.
The threshold for the D-index is dynamically adjusted in increments of 10 according to the estimated total number of scholars within each discipline. This approach guarantees the inclusion of the top 1% of leading researchers. Additionally, to ensure disciplinary focus, the proximity between a researcher’s general H-index and their D-index was set to 30% or less, reinforcing that recognized scholars maintain a consistent and specialized publication record within Environmental Sciences.
Verification and Validation Practices
The researchers responsible for compiling this ranking recognize that raw bibliometric data alone cannot fully capture a scholar’s research output and influence. Therefore, all scientist profiles underwent manual verification and cross-correlation with publications indexed across a wide array of trustworthy sources. Although the quantity of papers published in leading journals and premier conference proceedings does not directly impact a researcher’s ranking position, it is regarded as a valuable secondary indicator of scientific contribution within the field.
The ranking’s positional assignments are rooted in each researcher’s D-index, derived from data meticulously gathered via OpenAlex and CrossRef—the most prominent and reliable bibliometric databases currently accessible to the research community. We encourage readers seeking detailed insights into the methodology to visit our methodology page.
Research.com’s Mission and Objectives
At Research.com, our mission is to empower researchers, corporate entities, and policymakers worldwide to understand trends in leading-edge research by spotlighting top experts across specific scientific domains, countries, and institutions. This ranking serves as a platform that fosters greater awareness and connectivity within the global scientific community by identifying and celebrating exceptional expertise in Environmental Sciences in India. We are committed to upholding the highest standards of accuracy and transparency in our rankings, reflecting the careful and meticulous work invested in their creation.
