At one of the NGEE Arctic sites in the Seward Peninsula, near the town of Council, Alaska, the Dream Team—myself, Oriana Chafe, Margaret Torn (NG Arctic team lead), Stan Wullschleger (NG Arctic PI), Mark Conrad, Bryan Curtis and Sigrid Dengel (AMP) (see photo, left to right)—is flying a DGI model Inspire-1 UAS (unmanned aircraft system, or drone)…. More

Read how our AmeriFlux community contributed to this synthesis of data from 22 AmeriFlux towers. The authors write about responses of terrestrial ecosystems to extreme climate events (drought and heat), and the impact on the carbon cycle. This paper was just published in PNAS late April 2016 (doi: 10.1073/pnas.1519620113). See LBNL feature story by Dan Krotz,… More

Data shared through the AmeriFlux Network, and globally through FLUXNET, offer a unique tool to answering scientific questions across different spatial and temporal scales. This is only possible through the collective effort of individuals making measurements at their own sites, and taking extra effort to share the data. Enabling answers to these kinds of questions is motivation enough… More

Martin Beland (at Laval University, Canada) just sent us the white paper he co-wrote with Geoffrey Parker, David Harding, Chris Hopkinson, Laura Chasmer, and Alexander Antonarakis. Thanks from the community to the authors! See AmeriFlux Reports. “Our aim is to inform the AmeriFlux community on existing and upcoming LiDAR technologies (atmospheric Doppler or Raman LiDAR often deployed at flux… More

From the AmeriFlux-Community listserv. Thanks to Joydeep Bhattacharjee for asking, and David for this answer Joydeep: How do PIs across the network protect their equipment on towers against damage from lighting? David:  This question ought to unleash a flood of information and opinions, since lightning protection of sensitive instruments is a black art, similar to… More

What is Our Method?

(Dennis Baldocchi, author.) I have a new graduate student who is taking introductory classes with a diverse group of environmental science students. In their discussions, they are comparing how each one does their science. So in our weekly discussions, the question came back to me as to “What is our Method?” This is a good… More

Congratulations to Margaret Torn, AmeriFlux Management Project lead PI! Margaret received an honorary doctorate from the University of Zurich last Saturday, in recognition of her efforts to deeper understanding of biogeochemical processes and their climate implications of the soil-plant-atmosphere system, which contribute to science-based solutions to sustainable development of natural resources. She was one of… More

During this past AmeriFlux PI Meeting, Gil Bohrer and Tim Morin presented a live demonstration of their Portable Canopy Lidar (PCL), shown in Figure 1, which was developed by their team. The system is based on Lidar (light detection and ranging), which uses pulsed laser light to measure distances based on “time-of-flight.” In the demo,… More