Report summary

The 2021-2023 picture for Columbia University Lamont Doherty Earth is a 52-PI network with 11 internal PI collaborations. The research center of gravity is Earth and Planetary Sciences as the leading field (39% of slots across 37 PIs; 37 labels), Atmospheric Science as the leading subfield (22% of slots across 25 PIs; 25 labels), and Cryospheric studies and observations as the leading topic (9% of slots across 13 PIs; 13 labels). That is a thin collaboration pattern, useful for spotting individual pairs but less persuasive as a broad departmental network. The top weighted PIs are Anders Levermann (18.1 weighted works; Cryospheric studies and observations, Winter Sports Injuries and Performance). The strongest pairings are Alexander van Geen and Benjamín C. Bostick (5 shared works, weight 1.9). The standout breakdown groups are group 1 with 5 PIs, 4 internal connections, weight 3.7, around Environmental Chemistry, Pollution, Health, Toxicology and Mutagenesis, led by Alexander van Geen, Kathrin Schilling, Benjamín C. Bostick.