We are conducting  a pilot study to evaluate methods for the estimations of aerodynamic roughness parameters (i.e., roughness length (z0), zero plane displacement height (d)) from single-level eddy covariance measurements. Results will guide development for future AmeriFlux and FLUXNET datasets.  Thanks to the flux community, most required variables are available through the AmeriFlux database (e.g., wind speed (WS),… More

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

This year’s workshop is at Mountain Research Station, close to where the AmeriFlux Annual PI Meeting will take place in Golden CO, directly after this workshop. If you want to suggest a topic for the workshop, contact the organizers Sébastien Biraud (Tech) and Deb Agarwal (Data). Your suggestions are always very welcome! Update 7/19/16: No reg… 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

Updated 7/19/16:  Registration is open! The 2016 AmeriFlux Annual Principal Investigators Meeting takes place Wednesday evening, September 21, through Friday, September 23, 2016. All members of the AmeriFlux Community are welcome. Let’s celebrate the AmeriFlux Network’s 20th Anniversary! Place: Golden, Colorado—Denver West Marriott Hotel, about 35 miles from the Denver Airport. Lodging deadline: August 30, 2016 Registration:  $150… More

AmeriFlux Management Project offers a useful resource to all AmeriFlux sites: backup of high-frequency data and many other kinds of information related to the site. These can include photos of your site, scanned pdfs of your handwritten field notebook pages, and other kinds of data Only the team uploading the data has access to the backups; these files… More

The AmeriFlux Portable Eddy Covariance System (PECS) is used to evaluate data quality at sites in the AmeriFlux network. The PECS is deployed side-by-side for short deployments (10-14 days). The current PECS was designed and built by Dave Billesbach. The Tech Team has two PECS which allows simultaneous deployments. The PECS may be operated in different configurations depending… 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