Arjan Hensen

Arjan Hensen is an Endowed Professor at the Vrije Universiteit Amsterdam's Faculty of Science, Department of Earth and Climate. He has been a Medewerker (staff member) at TNO in Petten since 1990. His research focuses on greenhouse gas emissions, atmospheric chemistry, and environmental monitoring, contributing to UN Sustainable Development Goals related to climate action and responsible consumption.

Key research areas include methane and nitrous oxide emissions from agriculture and urban regions, ammonia deposition in coastal dunes, and innovative methods like UAV-based AirCore systems for emission quantification. His work integrates field measurements, sensor technology, and modeling to address environmental challenges.

Recent studies highlight seasonal variations in emissions, validation of novel instruments, and quantification of emissions from dairy cows and oil/gas sites. Collaborations span multiple institutions, reflecting his interdisciplinary approach to environmental science.