We all know the importance of soil as a CO2 source to the atmosphere, even in high latitude/altitude ecosystems with persistent snow cover. Before the days of automated soil respiration chambers and accessible eddy covariance technology, CO2 fluxes through porous media were estimated using vertical CO2 concentration profiles coupled with assumption that the vertical profile… More

  1. Contrasting long-term temperature trends reveal minor changes in projected potential evapotranspiration in the US Midwest By Bruno Basso et al. ( “From historical summer climate trends of the Midwest, U.S., the authors found a net decrease in atmospheric dryness (VPD) and potential evapotranspiration, suggesting that crop water deficits have likely become less frequent… More

To Be or Not to Be…that is the Question One of the challenging questions facing bio-geoscientists is whether the hydrological cycle is changing in a warming world with more CO2. There is speculation and evidence for both acceleration and a reduction in evaporation. The answer to this question is mixed as it is based on… More

Dear AmeriFlux community, We are launching a “mini-Review” series as part of the AmeriFlux Year of Water. In this short monthly review, we list and provide a brief introduction of recent papers that cover “water fluxes” and leverage AmeriFlux/FLUXNET data and other variety of techniques (e.g., field measurements, remote sensing, modeling, or theories). Through this… More

The Rosemount AmeriFlux sites are located at the University of Minnesota, Rosemount Research and Outreach Center (RROC) – a 3,500 acre research farm ( Our eddy covariance sites were established in conventional corn/soy systems in the early 2000s to assess the long-term carbon balance of agricultural systems and to evaluate if practical strategies (i.e. cover… More

Thank you for attending the 2021 AmeriFlux Annual Meeting! All of you made possible a wonderful 3 day conference, in which we enjoyed catching up with colleagues, meeting new ones, and brainstorm new directions for high impact science around eddy covariance fluxes. We’d like to thank the speakers, panelists, breakout leads, poster presenters, and everyone… More

Congratulations to the several AmeriFlux community members who have been awarded DOE funding for eddy-covariance flux research! In total, $11 million in funding was announced “to Study Critical Ecosystems and Improve Climate and Earth System Modeling.” Notably, three of the PIs benefitted from the AmeriFlux support through the AmeriFlux Rapid-Response Flux System (RRS) program, the… More

AmeriFlux principal investigators are quickly adopting the new AmeriFlux CC-BY-4.0 Data License, which allows their sites’ AmeriFlux data to be shared under the widely-used Creative Commons BY 4.0 license (CC-BY-4.0). This license allows data use as long as attribution is provided. This new license is more open than the historical AmeriFlux data policy, which is… More