Ulli Seibt

Ulli Seibt is a Professor in the Department of Atmospheric and Oceanic Sciences at the University of California, Los Angeles. His research focuses on biogeochemical cycles, plant-atmosphere interactions, and carbon flux modeling across diverse ecosystems.

• Education: Diploma (Max Planck Institute for Meteorology & University of Tübingen); Ph.D. (Max Planck Institute for Biogeochemistry & University of Hamburg)

Ulli's work investigates terrestrial biogeochemistry and photosynthetic dynamics, particularly using carbonyl sulfide (COS) as a tracer for gross primary productivity (GPP). His studies span tropical rainforests, boreal forests, and California oak woodlands, with emphasis on heatwave impacts, transpiration-photosynthesis coupling, and remote sensing applications.

Recent publications highlight his contributions to scaling COS flux measurements for carbon cycle modeling, understanding diurnal and seasonal ecophysiological patterns, and developing empirical soil COS flux models. His research integrates ground-based flux towers, airborne observations, and land surface models to constrain carbon budgets globally.