Report summary

Columbia University Lamont Doherty Earth in 2018-2020 reads as a 50-PI network with 22 internal PI collaborations. The research center of gravity is Earth and Planetary Sciences as the leading field (39% of slots across 36 PIs; 36 labels), Atmospheric Science as the leading subfield (21% of slots across 25 PIs; 25 labels), and Geology and Paleoclimatology Research as the leading topic (8% of slots across 11 PIs; 11 labels). That is of concern for a 50-PI roster; the strongest pairings may be carrying much of the visible collaboration. The most prominent PIs by weighted works are Alexander van Geen (11.8 weighted works; Arsenic contamination and mitigation, Heavy Metal Exposure and Toxicity); Adam H. Sobel (11.2 weighted works; Tropical and Extratropical Cyclones Research, Climate variability and models). The strongest pairings are Alexander van Geen and Benjamín C. Bostick (9 shared works, weight 5). The strongest breakdown groups are group 1 with 9 PIs, 13 internal connections, weight 16.3, around Environmental Chemistry, Health, Toxicology and Mutagenesis, Environmental Engineering, led by Alexander van Geen, Benjamín C. Bostick, Beizhan Yan.