News 2011

Meetings

2011 American Geophysical Union Annual Meeting, San Francisco

Posters and Presentations by current and former Biomet lab memberss

BIAS AND VARIANCE IN COARSE RESOLUTION EVAPOTRANSPIRATION FLUX MODELS USING MODIS DATA
Melanie S. Hahn; Dennis D. Baldocchi; Youngryel Ryu; Catharine van Ingen; James R. Hunt

Enabling Data Synthesis at Fluxdata.org: Lessons Learned (Invited)
Deb Agarwal; Catharine van Ingen; Dario Papale; Markus Reichstein; Marty Humphrey; Kristofer D. Johnson; Laura E. Koteen; Norm Beekwilder; Lucas E. Nave; Monte Goode; Keith R. Jackson; Dennis D. Baldocchi; Christopher Swanston; Jennifer W. Harden; Margaret S. Torn; James R. Hunt

Water management controls net carbon exchange in drained and flooded agricultural peatlands in the Sacramento-San Joaquin Delta, CA, Jaclyn Hatala; Matteo Detto; Oliver Sonnentag; Joseph G. Verfaillie; Dennis D. Baldocchi

UNDERSTANDING THE EFFECTS OF CLIMATE AND WATER MANAGEMENT ON CARBON AND ENERGY FLUXES FOR RESTORED WETLANDS IN THE SACRAMENTO – SAN JOAQUIN DELTA, CALIFORNIA, USA
Frank Anderson; Brian A. Bergamaschi; Travis Von Dessonneck; Kathleen Keating; Joseph G. Verfaillie; Jaclyn Hatala; Dennis D. Baldocchi; Kristin B. Byrd; Lisamarie Windham-Myers; Matteo Detto; Roger Fujii

Beyond Greenness: Towards a Continuous Phenology of Vegetation
Lee A. Vierling; Dennis D. Baldocchi; Nicholas C. Coops; Jan Eitel; Mark A. Friedl; John A. Gamon; Steven R. Garrity; Thomas Hilker; Karl F. Huemmrich; Andrew D. Richardson; Crystal Schaaf; Oliver Sonnentag; Craig E. Tweedie

Seasonality of Overstory and Understory Fluxes in a Semi-Arid Oak Savanna: What can be Learned from Comparing Measured and Modeled Fluxes?
Naama Raz-Yaseef; Oliver Sonnentag; Hideki Kobayashi; Jing M. Chen; Joseph G. Verfaillie; Siyan Ma; Dennis D. Baldocchi

Computing Carbon Dioxide and Water Vapor Fluxes Everywhere, All of the Time (Invited)
Dennis D. Baldocchi; Youngryel Ryu; Hideki Kobayashi

Root distribution in a California semi-arid oak savanna ecosystem as determined by conventional sampling and ground penetrating radar, Laura E. Koteen; Naama Raz-Yaseef; Dennis D. Baldocchi

Other

We had the annual Biomet Lab Lunch, after AGU, at the Indian restraurant in Berkeley. Great turnout and lots of fun.

Publications

Detto, M., Molini, A., Katul, G., Stoy, P., Palmroth, S. and Baldocchi,D. 2011. Causality and Persistence in Ecological Systems: A Non-Parametric Spectral Granger Causality Approach. American Naturalist. In press.

Research

Our research was covered in a story by NPR on'Can Carbon Ranching Offset Carbon Emissions?'

Our work on FLUXNET was featured in an article in the SF Chronicle. Big data can lead to big breakthrough in research

Staff News

Sebastian Wolf was awarded a Marie Curie International Outgoing Fellowships grant to work in the Biomet Lab. Congratulations.

Visitors

Dan Yakir, Weizmann Institute. Dan gave a seminar on his biosphere-atmosphere interactions research in Israel.

Casa Baldocchi hosted Riccardo Valentini, Bev Law, Russ Monson, Josep Penuelas and Dan Yakir for meals and wine during and after the AGU meeting

Meetings

ddb attended the BrasFlux Workshop and the 7th Workshop on Micrometeorology in Santa Maria, Rio Grande do Sul, Brasil, Nov 16-17, 2011 and gave talks on FLUXNET and on the Trials and Tribulations of measuring methane fluxes

Publications

Ryu, Y., D. D. Baldocchi, H. Kobayashi, C. van Ingen, J. Li, A. T. Black, J. Beringer, E. van Gorsel, A. Knohl, B. E. Law, and O. Roupsard (2011), Integration of MODIS land and atmosphere products with a coupled-process model to estimate gross primary productivity and evapotranspiration from 1 km to global scales, Global Biogeochem. Cycles,doi:10.1029/2011GB004053, in press.

AGRFORMET-D-11-00118R2, Are rain-induced ecosystem respiration pulses enhanced by legacies of antecedent photodegradation in semi-arid environments?, by Siyan Ma, Dennis D Baldocchi, Jaclyn  A Hatala; Matteo  Detto, Jorge  Curiel-Yuste, has been accepted for publication in Agricultural and Forest Meteorology.

Staff News

Sebastian Wolf joined the Biometeorology lab as a postdoctoral fellow. He received his PhD from ETH Zurich in Switzerland.

Meetings

DDB gave a seminar at Boston University Terrestrial Biogeoscience Interdisciplinary Program on Scaling information on Biosphere Breathing from Chloroplast to the Globe

Publications

Grant, R. F., D. D. Baldocchi, and S. Ma. 2012. Ecological controls on net ecosystem productivity of a seasonally dry annual grassland under current and future climates: Modelling with ecosys. Agricultural and Forest Meteorology 152:189-200.

Ryu, Y., D. D. Baldocchi, T. A. Black, M. Detto, B. E. Law, R. Leuning, A. Miyata, M. Reichstein, R. Vargas, C. Ammann, J. Beringer, L. B. Flanagan, L. Gu, L. B. Hutley, J. Kim, H. McCaughey, E. J. Moors, S. Rambal, and T. Vesala. 2012. On the temporal upscaling of evapotranspiration from instantaneous remote sensing measurements to 8-day mean daily-sums. Agricultural and Forest Meteorology 152:212-222.

Kobayashi, H., D. D. Baldocchi, Y. Ryu, Q. Chen, S. Ma, J. L. Osuna, and S. L. Ustin (2012), Modeling energy and carbon fluxes in a heterogeneous oak woodland: A three-dimensional approach, Agricultural and Forest Meteorology, 152(0), 83-100.

Koteen, L., Baldocchi, D. Harte, J. 2011. Invasion of non-native grasses causes a drop in soil carbon storage in California grasslands. Environmental Research Letters. 6 044001 doi:10.1088/1748-9326/6/4/044001

Hatala, J, Detto, M, Sonnentag, O, Deverel, S., Verfaillie, J, Baldocchi, D. 2011. Greenhouse gas (CO 2, CH 4, H 2O) fluxes from drained and flooded agricultural peatlands in the Sacramento-San Joaquin Delta. Agricultural Ecosystems and Environment. submitted

Visitors

Heather Troop, New Mexico State, on decomposition of semi-arid ecosystems

Publications

Grant, R., Baldocchi, D.D. and Ma, S. 2011. Ecological Controls on Net Ecosystem Productivity of a Seasonally Dry Annual Grassland under Current and Future Climates: Modelling with Ecosys. Agricultural and Forest Meteorology. In press

Koteen, L., Harte, J., Baldocchi, D.D.. 2011. Invasion of non-native grasses causes a drop in soil carbon storage in California grasslands, Environmental Research Letters. In press

Kobayashi, H. ,Baldocchi, D.D., Ryu, Y, Chen, Q, Ma, S, Osuna, J., Ustin, S. 2011. Modeling Energy and Carbon Fluxes in a Heterogeneous Oak Woodland: A Three-Dimensional Approach. Agricultural and Forest Meteorology. In press.

Ryu,Y.#, Baldocchi, D., Black, T.A., Detto, M.*, Law, B.E., Leuning, R., Miyata, A., Reichstein, M., Vargas, R., Ammann, C., Beringer, J., Flanagan, L.B., Gu, L., Hutley, L., Kim, J.,Harry McCaughey; Eddy Moors; Rambal, S., Vesala, T., Richardson, A.D. 2011. On the temporal upscaling of evapotranspiration from instantaneous remote sensing measurements to 8-day mean daily-sums. Agricultural and Forest Meteorology. In press

Publications

Detto M., Verfaillie J., Anderson F., Xu L. & Baldocchi D. (2011) Comparing laser-based open- and closed-path gas analyzers to measure methane fluxes using the eddy covariance method. Agricultural and Forest Meteorology. 151, 1312-1324.

Baldocchi, D., 2011: Global change: The grass response. Nature, 476, 160-161.

Agarwal, D., Cheah, Y.-W., Fay, D., Fay, J., Guo, D., Hey, T., Humphrey, M., Jackson, K., Lie, J., Poulain, C., Ryu, Y. and van Ingen, C., 2011. Data-Intensive Science: The Terapixel and MODISAzure Projects. International Journal of High Performance Computing Applications, 25(3): 304-316

Vargas R, Baldocchi DD, Bahn M, Hanson PJ, Hosman KP, Kulmala L, Pumpanen J, Yang B  (2011) On the multi-temporal correlation between photosynthesis and soil CO2 efflux: reconciling lags and observations. New Phytologist. 191: 1006-1017

Staff News

Sarah Knox joins the Biomet lab from McGill and Carelton Universities in Canada.

Visitors

Carl Bernacchi's lab from University of Illionois stopped by for a visit and discussed fluxes over different bioenergy crops.

Dario Papale from the University of Tuscia

Bob Cook, ORNL Fluxnet office

Staff News

Three undergraduates are conducting research in the Biometeorology Lab this summer. Jose Luis Sanchez is working on the Twitchell Island rice project as part of the Biology Scholars Program. Mirabel Jaquez is an engineering student from UC Irvine working on the LED sensor as part of the Cal NERDS program. Emily Chow is an Environmental Science major performing her senior thesis project on the potential methane production from peat sediments.

Visitors

Markus Reichstein from the Max Planck Institute for Biogeochemistry, Jena, Germany, is a FLUXNET visiting scientist for 6 weeks this summer.

Meetings

We hosted and convened the FLUXNET-SpecNet workshop in Berkeley. About 140+ scientists from 16 countries were in attendance.

Information on the workshop is available on the web Site

Publications

Baldocchi, DD ., Ryu, Y. 2011. A Synthesis of Forest Evaporation Fluxes ¾ from Days to Years ¾ as Measured with Eddy Covariance. In: Forest Hydrology and Biogeochemistry: Synthesis of Past Research and Future Directions, Editors, Del Lavia and Darryl Carlyle-Moses, Ecological Studies, 216. Springer. DOI 10.1007/978-94-007-1363-5_5

Detto M., Verfaillie J., Anderson F., Xu L. & Baldocchi D. (2011) Comparing laser-based open- and closed-path gas analyzers to measure methane fluxes using the eddy covariance method. Agricultural and Forest Meteorology, published on line.

Vargas R., Baldocchi D.D., Bahn M., Hanson P.J., Hosman K.P., Kulmala L., Pumpanen J. & Yang B. (2011) On the multi-temporal correlation between photosynthesis and soil CO2 efflux: reconciling lags and observations. New Phytologist. published on line

Kattge J., Díaz S., Lavorel S., Prentice I.C., Leadley P., Bönisch G., Garnier E., Westoby M., Reich P.B., Wright I.J., Cornelissen J.H.C., Violle C., Harrison S.P., van Bodegom P.M., Reichstein M., Enquist B.J., Soudzilovskaia N.A., Ackerly D.D., Anand M., Atkin O., Bahn M., Baker T.R., Baldocchi D., Bekker R., Blanco C.C., Blonder B., Bond W.J., Bradstock R., Bunker D.E., Casanoves F., Cavender-Bares J., Chambers J.Q., Chapin Iii F.S., Chave J., Coomes D., Cornwell W.K., Craine J.M., Dobrin B.H., Duarte L., Durka W., Elser J., Esser G., Estiarte M., Fagan W.F., Fang J., Fernández-Méndez F., Fidelis A., Finegan B., Flores O., Ford H., Frank D., Freschet G.T., Fyllas N.M., Gallagher R.V., Green W.A., Gutierrez A.G., Hickler T., Higgins S.I., Hodgson J.G., Jalili A., Jansen S., Joly C.A., Kerkhoff A.J., Kirkup D., Kitajima K., Kleyer M., Klotz S., Knops J.M.H., Kramer K., Kühn I., Kurokawa H., Laughlin D., Lee T.D., Leishman M., Lens F., Lenz T., Lewis S.L., Lloyd J., Llusià J., Louault F., Ma S., Mahecha M.D., Manning P., Massad T., Medlyn B.E., Messier J., Moles A.T., Müller S.C., Nadrowski K., Naeem S., Niinemets Ü., Nöllert S., Nüske A., Ogaya R., Oleksyn J., Onipchenko V.G., Onoda Y., Ordoñez J., Overbeck G., Ozinga W.A. TRY – a global database of plant traits. Global Change Biology, published on line.

Hatala J.A., Dietze M.C., Crabtree R.L., Kendall K., Six D. & Moorcroft P.R. (2011) An ecosystem-scale model for the spread of a host-specific forest pathogen in the Greater Yellowstone Ecosystem, pp. 1138-1153.

Hatala J.A., Crabtree R.L., Halligan K.Q. & Moorcroft P.R. (2010) Landscape-scale patterns of forest pest and pathogen damage in the Greater Yellowstone Ecosystem. Remote Sensing of Environment, 114, 375-384.

Visitors

Josep Penuelas, Barcelona Spain

Markus Reichstein, Max Planck Institute for Biogeochemistry, Jena

Meetings

D. Baldocchi.. Trials and Tribulations of Measuring Methane Fluxes in the Sacramento-San Joaquin Delta. Western Regional Colloquium. USGS Menlo Park, May 9, 2011.

Watch Video

Publications

Sonnentag O., Detto M., Vargas R., Ryu Y., Runkle B.R.K., Kelly M. & Baldocchi D.D. (2011) Tracking the structural and functional development of a perennial pepperweed (Lepidium latifolium L.) infestation using a multi-year archive of webcam imagery and eddy covariance measurements. Agricultural and Forest Meteorology, 151, 916-926

Baldocchi D., Detto M., Sonnentag O., Verfaillie J., Teh Y.A., Silver W. & Kelly N.M. (2011) The challenges of measuring methane fluxes and concentrations over a peatland pasture. Agricultural and Forest Meteorology, On Line. 10.1016/j.agrformet.2011.04.013,.

Research

The Biomet Lab conducted an extensive root sampling study at Tonzi ranch. 15 pits were dug and sampled as well as 84 root cores. Together this information will be used to test a Ground Penetrating Radar (GPR) system which we rented.

The COSMOS team of the University of Arizona installed a COSMOS soil moisture system at Tonzi ranch

http://cosmos.hwr.arizona.edu/Probes/StationDat/032/index.php

Staff News

Jaclyn Hatala passed her Oral Qualification Exam for her Doctorate. She is now a Ph. D Candidate. Congratulations

Jessica Osuna, Ph.D. graduated! Congratulations

 

Visitors

Mahta Moghaddam and Mingyan Liu, Univ Michigan, Dara Entekhabi, MIT visited with colleagues to plan NASA project to measure soil moisture at Tonzi from space with Radar and from the ground with a wireless network

 

Publications

Baldocchi, D. Detto, M, Sonnentag, O, Teh, Y. Silver, W, Kelly, M. 2011. The Challenges of Measuring Methane Fluxes and Concentrations over a Peatland Pasture Agricultural and Forest Meteorology. Accepted for publication

Staff News

Jessica Osuna filled her dissertation. Congratulations.

Jessica Osuna. ESPM. Drought tolerance in Quercus douglasii in the California Mediterranean savanna: A study of photosynthetic functional responses, limitations and changes during annual seasonal drought. Ph.D. May, 2011.

Publications

Teh, Y., Silver, W.,. Sonnentag, O., Detto, M., Kelly, M. Baldocchi, D. 2011. Large greenhouse gas emissions from a temperate peatland pasture. Ecosystems. 14, 311-325, DOI:10.1007/s10021-011-9411-4.

Meetings

D. Baldocchi. The Ecology and Physics of Mining Carbon Dioxide from the Atmosphere. Physiological and Molecularl Plant Biology Noon Seminar, University of Illinios, Champaign-Urbana, IL. February 23, 2011.

D. Baldocchi.. Trials and Tribulations of Measuring Methane Fluxes in the Sacramento-San Joaquin Delta. Ecosystem Sciences Division, Department of Environmental Science, Policy and Management. University of California, Berkeley. February 16, 2011.

Publications

Sonnentag, O, Detto M, Runkle BRK, Teh YA, Silver WL, Kelly M, Baldocchi DD. 2011. Carbon dioxide exchange of a pepperweed (Lepidium latifolium L.) infestation: how do flowering and mowing affect canopy photosynthesis and autotrophic respiration? Journal of Geophysical Research, Biogeosciences . 116(G1): G01021

Ryu, Y., Baldocchi, D.D., Kobayashi, H., van Ingen, C., Li, J., Black, T.A., Beringer, J., van Gorsel, E., Knohl, A., Law, B.E., Richardson, A.D., Roupsard, O.. 2011. Integration of MODIS land and atmosphere products with a coupled-process model to estimate gross primary productivity and evapotranspiration from 1 km to global scales. Global Biogeochemical Cycles. submitted

Visitors

Ramakrishna Nemani, NASA Ames. Introduced the new NASA NEX program at Ames which will integrate remote sensing datasets and super computing

Gaby Katul, BASC lecturerer

Steve Wofsy, BASC lecturerer

Sara Knox, prospective student

Meetings

Siyan Ma, Naama Raz-Yaseef, Laurie Koteen and DDB attended the AmeriFlux and North American Carbon Project meeting in New Orleans.

Publications

Schwalm CR, Williams CA, Schaefer K, Anderson R, Arain MA, Baker I, Barr A, Black TA, Chen GS, Chen JM, Ciais P, Davis KJ, Desai A, Dietze M, Dragoni D, Fischer ML, Flanagan LB, Grant R, Gu LH, Hollinger D, Izaurralde RC, Kucharik C, Lafleur P, Law BE, Li LH, Li ZP, Liu SG, Lokupitiya E, Luo YQ, Ma SY, Margolis H, Matamala R, McCaughey H, Monson RK, Oechel WC, Peng CH, Poulter B, Price DT, Riciutto DM, Riley W, Sahoo AK, Sprintsin M, Sun JF, Tian HQ, Tonitto C, Verbeeck H, Verma SB A model-data intercomparison of CO2 exchange across North America: Results from the North American Carbon Program site synthesis. Journal of Geophysical Research-Biogeosciences 115