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News 2016

May
Meetings

ddb gave a seminar on Evaluating Evaporation Everywhere, All of the Time: Lessons Learned about Ecosystem Evaporation from Long-Term, Global Flux Networks. Massachusetts Institute of Technology, Environmental Science Seminar, May 5, 2016.

ddb gave a presentation at the symposium on California Climate Change Scoping Plan: Role of Agriculture. University of California Center, Sacramento

Staff News

Sara Knox finished her Ph.D. Congratulations. Here dissertation is on Assessing the Impacts of Land Use Change and Ecological Restoration on CH4 and CO2 Fluxes in the Sacramento San Joaquin Delta, California: Findings from a Regional Network of Eddy Covariance Towers

Brian Su, an undergraduate EECS major, gave a presentation on his application of machine learning methods to predict fluxes of mass and energy from a wetland

Ian Utz, an undergraduate ES major, gave a presentation on his study of the role of phytoplankton on assimilation of the wetland.

 

Housen Chu was a cited referee by Journal of Geophysical Research, Biogeoscience.  Congratulations

April
Meetings

ddb gave a presentation on Implications on the True Cost of Water on California Agriculture at the True Cost of Food Conference in San Francisco

ddb gave a presentation on Ameriflux's role in building community infrastructure: observations, data and models at the DOE ESS annual PI meeting, Potomac, MD

Publications

published

Knox, S. H., J. H. Matthes, C. Sturtevant, P. Y. Oikawa, J. Verfaillie, and D. Baldocchi. 2016. Biophysical controls on interannual variability in ecosystem-scale CO2 and CH4 exchange in a California rice paddy. Journal of Geophysical Research: Biogeosciences: doi 10.1002/2015JG003247.

Wolf, S., T. F. Keenan, J. B. Fisher, D. D. Baldocchi, A. R. Desai, A. D. Richardson, R. L. Scott, B. E. Law, M. E. Litvak, N. A. Brunsell, W. Peters, and I. T. van der Laan-Luijkx. 2016. Warm spring reduced carbon cycle impact of the 2012 US summer drought. Proceedings of the National Academy of Sciences. doi: 10.1073/pnas.1519620113

Baldocchi, D., S. Knox, I. Dronova, J. Verfaillie, P. Oikawa, C. Sturtevant, J. H. Matthes, and M. Detto. 2016. The impact of expanding flooded land area on the annual evaporation of rice. Agricultural and Forest Meteorology 223:181-193doi:10.1016/j.agrformet.2016.04.001

submission of papers to:

Agricultural and Forest Meteorology Siyan Ma, Dennis D Baldocchi, Sebastian Wolf,  Joseph Verfaillie, Long-term responses in ecosystems CO2 fluxes over 15 years in Californian oak-grass savanna.

Journal of Geophysical Research - Biogeoscience manuscript 2016JG003438, Introducing a biogeochemical model for estimating CO2 and CH4 exchange in restored wetlands, Oikawa, Sturtevant, Hatala, Knox, Verfaillie, Baldocchi

Geophysical Research Letters, manuscript 2016GL068782, Overlooked methane transport process controls significant portion of a wetland's methane emissions, Poindexter, Variano, Knox, Baldocchi

March
Meetings

ddb participated in the spring Biological and Environmental Research Advisory Committee (BERAC) for DOE in Gaithersberg, MD. charges to the committee are to revisit and advance the grand challenges for DOE BER for the next 20 years.  Presentations on BER research from all the National Labs were presented to the committee. and and update on NGEE Tropics

ddb gave a plenary talk on Using a Hierarchy of Modeling Approaches to Mine a Rich Dataset of Greenhouse Gas Fluxes Measurements: Experiences Derived from a Meso-network of Agricultural and Restored Wetland Sites in the Peat-Rich Delta of California at the Austin International Conference on Soil Modeling

Publications

*Warm spring reduced carbon cycle impact of the 2012 US summer drought*" Wolf et al. PNAS, accepted

Staff News

Kyle Hemes will be awarded a Delta Science Program and California Sea Grant for his proposal titled “Restoring the Sacramento-San Joaquin Delta Peatlands: A complete biogeochemical assessment of climatic impacts” .  Congratulations

February
Meetings

Sara Knox gave a presentation onAssessing the impacts of land-use change and ecological restoration on CH4 and CO2 fluxes in the Sacramento-San Joaquin Delta, California: findings from a regional network of eddy covariance towers at USGS in Menlo Park

Publications

Anderson, F. E., B. Bergamaschi, C. Sturtevant, S. Knox, L. Hastings, L. Windham-Myers, M. Detto, E. L. Hestir, J. Drexler, R. L. Miller, J. H. Matthes, J. Verfaillie, D. Baldocchi, R. L. Snyder, and R. Fujii. 2016. Variation of energy and carbon fluxes from a restored temperate freshwater wetland and implications for carbon market verification protocols. Journal of Geophysical, Biogeoscience doi: 10.1002/2015JG003083

 Knox et al .Biophysical controls on interannual variability in ecosystem scale CO2 and CH4 exchange in a California rice paddy" [Paper #2015JG003247R], accepted for publication in Journal of Geophysical Research - Biogeosciences. 

Visitors

Christian Frankenberg from CalTech/JPL visited and discussed fluorescence and photosynthesis.  He as also a featured speaker for the annual BASC symposium

Ralph Cicerone, National Academy of Science, visited to discuss methane fluxes from rice and wetlands. Ralph was on campus giving this years Hitchcock lectures.

January
Publications

Oak Woodlands (Frank W. Davis, Dennis D. Baldocchi, and Claudia M. Tyler) In Ecosystems of California. Harold Mooney and Erika Zavaleta (Editors) Hardcover, 1008 pages ISBN: 9780520278806January 2016

Visitors

Frank Anderson, USGS, came by and gave a lab seminar on greenhouse gas fluxes from the Suisun Marsh

Jan Krebich, from Goettingen University, is a visiting graduate student during the Spring, 2016 semester. He will work on assessing soil CO2 profiles and fluxes from the grassland and savanna sites.

         
    This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.