The AmeriFlux Annual Meeting this year was a hybrid event for the first time, after two years of completely virtual meetings. 74 attendees joined the meeting in-person at the University… More

We had no idea we would be able to keep our flux towers operational for now more than 20 years when we began in the spring of 2001 at Mead,… More

The ongoing rise in atmospheric methane concentration creates global urgency towards understanding sources and sinks and potential interventions to reduce methane emissions. Wetlands are significant sources of methane and many… More

The western US has experienced widespread increases in burned area in recent decades (Keeley and Syphard 2018; Bowman et al., 2020). In California and Oregon the largest and most destructive… More

As a college undergraduate, my advisor gave me the lofty responsibility of walking up and down the scaffold stairs of an eddy-covariance flux tower. My job was to swap out… More

Routinely, we have treated land segments as silos and gravitated our perspectives towards fluxes that are directed upward and downward. If you have ever had a leaky sink, one way to fix it would be to put a bucket underneath. But wouldn’t it make more sense to find and fix the core problem that is causing the leak? Nature perhaps is similar to the leaky sink, but on a far more complex scale, and the core problems are often from many different sources and sinks. So, what cause(s) our control volume to leak and unable to conserve energy?

From an operational comfort perspective (science be damned), ideally located flux sites should be placed somewhere easily accessible, near power connection and wireless data coverage, and, preferably, on solid ground…. More

  The contrast in weather was extreme for 2020 and 2021 at our flux sites located in the semiarid shrublands, grasslands, savannas, and forests of southern Arizona. This was especially… More

Coastal forested wetlands in the southeastern US provide important ecosystem services, including the conservation of biodiversity, supplying clean, abundant water resources, and the cycling and storage of carbon, which feeds… More

Cities have a complex mix of land uses, from commercial districts with dining and shops to residential neighborhoods linked by travel corridors, as well as industrial areas such as ports and factories. All of these different land uses lead to a diversity of urban sources that emit volatile organic compounds (VOCs) and greenhouse gasses such as carbon dioxide (CO2) and methane (CH4). Direct measurements and analysis of these species over time helps us understand human interactions with climate and air pollution.