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News 2015


Sara Knox spoke on the analysis of six years of rice methane fluxes at the monthly USDA-AFRI-UC Davis team meeting.

ddb gave an invited talk on 'What is Annual Ecosystem Photosynthesis? An Exploration of Data and Models from Ecosystem to Globe' at the 4th Carbon Assimilation Workshop at the University of Toronto. 

ddb spoke at the Antioch Sons of Italy on trends in fog in the Central Valley.  Learned about the release of hippos in the delta to control water hyacinth


Almonds, Not the State's Worst Water Offenders NBC Bay Area


A proposal with the Dept of Water Resources and the Silver Lab was funded by the California Dept Fish and Wildlife to restore wetlands that sequester greenhouse gases and provide other ecological benefits. The work will be done on Sherman Island and extend our network of sites across the Delta on Twitchell Island


Baldocchi, D., Sturtevant, C. and Contributors., 2015. Does day and night sampling reduce spurious correlation between canopy photosynthesis and ecosystem respiration? Agricultural and Forest Meteorology, 207(0): 117-126.

Sturtevant, C., Ruddell, B., Knox, S., Verfaillie, J, Hatala-Mathes, J., Oikawa, P. Baldocchi, D. Identifying the complex processes driving greenhouse gas exchange at multiple time scales in restored wetlands. Journal of Geophysical Research, Biogeosciences, submitted.


Trevor Keenan visited the Biomet lab, while on campus and in Berkeley giving a lecture at LBL.


Patty Oikawa lectured on Transitioning from Farming Corn to Farming Carbon: The Role of Agriculture in Water Resources Management and Climate Change Adaptation and Mitigation at Stanford, April 1, 2015

ddb lectured on 'Physics Wins, Biology is How it's Done: An Exploration of Ecosystem-Atmosphere Interactions' at University of Hawaii, Geography Distinguished Lecture Series. April 2, 2015 and at the Weizmann Institute in Israel on April 19. 2015.

ddb attend the DOE Terrestrial Ecosystem Science PI meeting in Potomac, MD and presented a poster on the mesonetwork of flux sites the biomet lab is operating across California.


Osuna, J.L., Baldocchi, D.D., Kobayashi, H. and Dawson, T.E., 2015. Seasonal trends in photosynthesis and electron transport during the Mediterranean summer drought in leaves of deciduous oaks. Tree Physiology.


Gordon Bonan, from NCAR, visited while on campus giving his BASC lecture on Connecting mathematical ecosystems, real-world ecosystems, and climate science

Joana Joiner from NASA visited the biomet lab, while on campus giving her BASC lecture on detecting chlorophyll flourescence from space.


ddb visited the Universities of Stockholm and Uppsala, where he gave presentations on greenhouse gas flux studies in the Delta.  The main purpose was to serve  as the opponent of the PhD defense of Eva Podgrajsek, Lake fluxes of carbon dioxide and methane. He also visited the new lake flux site on Lake Erken.  The Uppsala group of Erik Sahlee and Anna Rutgersson are actively measuring eddy fluxes over lakes in Sweden and the Baltic sea. The Stockholm group of Patrick Crill are doing novel work in the Arctic measuring methane fluxes of fens, bogs and lakes and are looking at the sources of production with stable isotopes and linking biogeochemical function with genomics, protenomics and transcriptonomics. They are also making novel measurements of bubble fluxes.  A Lot was learned on the trip.

 Joe Verfaillie, Cove Sturtevant, Siyan Ma, Patty Oikawa, Sara Knox and Housen Chu participated in the Ameriflux Data workshop at Lawrence Berkeley National Lab.


Baldocchi, D.D. Sturtevant, C. Does Day and Night Sampling Reduce Spurious Correlation between Canopy Photosynthesis and Ecosystem Respiration?&Agricultural and Forest Meteorology. accepted for publication

Petrescu, A. M. R., A. Lohila, J.-P. Tuovinen, D. D. Baldocchi, A. R. Desai, N. T. Roulet, T. Vesala, A. J. Dolman, W. C. Oechel, B. Marcolla, T. Friborg, J. Rinne, J. H. Matthes, L. Merbold, A. Meijide, G. Kiely, M. Sottocornola, T. Sachs, D. Zona, A. Varlagin, D. Y. F. Lai, E. Veenendaal, F.-J. W. Parmentier, U. Skiba, M. Lund, A. Hensen, J. van Huissteden, L. B. Flanagan, N. J. Shurpali, T. Grünwald, E. R. Humphreys, M. Jackowicz-Korczyński, M. A. Aurela, T. Laurila, C. Grüning, C. A. R. Corradi, A. P. Schrier-Uijl, T. R. Christensen, M. P. Tamstorf, M. Mastepanov, P. J. Martikainen, S. B. Verma, C. Bernhofer, and A. Cescatti. 2015. The uncertain climate footprint of wetlands under human pressure. Proceedings of the National Academy of Sciences. doi 10.1073/pnas.1416267112. published online, early view


Jose Fuentes of Penn State visited the Biometlab while on campus giving a BASC symposium lecture


ddb gave a presentation on eddy covariance, a method for measuring ecosystem-atmosphere fluxes of trace gases at 2015 Aquatic Sciences meeting of the Association of the Sciences of Limnology and Oceanography in Granada, Spain.

Presentations on the Fluxnet project were give at the Vrije University, near Amsterdam. While in Wageningen, seminars were given on the greenhouse gas studies in the Delta and on Fluxnet.


Greenness indices from digital cameras predict the timing and seasonal dynamics of canopy-scale photosynthesis Michael Toomey, Mark A. Friedl, Steve Frolking, Koen Hufkens, Stephen Klosterman, Oliver Sonnentag, Dennis D. Baldocchi, Carl J. Bernacchi, Sebastien C. Biraud, Gil Bohrer, Edward Brzostek, Sean P. Burns, Carole Coursolle, David Y. Hollinger, Hank A. Margolis, Harry McCaughey, Russell K. Monson, J. William Munger, Stephen Pallardy, Richard P. Phillips, Margaret S. Torn, Sonia Wharton, Marcelo Zeri, and Andrew D. Richardson. Ecological Applications 2015 25:199-115 



ddb participated in the scientific review of the Max Planck Institute for Biogeochemistry in Jena, Germany and is now spending the next month on sabbatical at Wageningen University in the Netherlands in the Meteorology and Air Pollution Group with Jordi Vila.

Staff News

Housen Chu is joining the Biomet Lab as a postdoc working on the Fluxnet project. He just got his PhD from the University of Toledo.

Ana Andreu Mendez is joining the Biomet Lab as a visiting scientist from Cordoba, Spain

    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.