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Tower_team:
PI: Dennis Baldocchi baldocchi@berkeley.edu - University of California, Berkeley
AncContact: Joe Verfaillie jverfail@berkeley.edu - University of California, Berkeley
FluxContact: Elke Eichelmann eeichelm@berkeley.edu - UC Berle;eu
Technician: Daphne Szutu daphneszutu@berkeley.edu - UC Berkeley
Lat, Long: 38.10867, -121.6530
Elevation(m):
Network Affiliations: AmeriFlux
Vegetation IGBP: CRO (Croplands)
Climate Koeppen: Csa (Mediterranean: mild with dry, hot summer)
Mean Annual Temp (°C): 15.6
Mean Annual Precip. (mm): 421
Flux Species Measured: CO2, CH4
Years Data Collected: AmeriFlux: 2009 - Present
Description:
The Twitchell Island site is a rice paddy that is owned by the state and managed by the California Department of Water Resources. While Bare Peat field ...
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Research Topics:
The research approach of the University of California, Berkeley Biometeorology Laboratory involves the coordinated use of experimental measurements and ...
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Acknowledgment: California Department of Water Resources; USDA/AFRI
Site Photo More Site Images
AmeriFlux Logo

Site Publication More Site Publications
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, 121, 978-1001.

AmeriFlux user: This tab is under development. Below are new values we’re thinking of offering. Please send your feedback and requests to the AmeriFlux Data Team at ameriflux-support@lbl.gov.


Derived Quantities

  • LAI (cm2/g)
  • Canopy Height (m)
  • Photosynthesis
  • GPP
  • Latent Heat Exchange
  • Net Ecosystem Exchange
  • PPFD (Visible Light)
  • Precipitation (mm)
  • Ecosystem Respiration
  • Solar Radiation (Rg)
  • Rn (Net Radiation) W/m2
  • Air Temp (°C)
  • Vapor Pressure Deficit
  • Veg Properties
  • Plant Functional Type
  • Disturbance History

  • Instruments, Rel to Ref Pt

  • Elevation (m)
  • r, Θ (m, rad)

  • Soils Template

  • Soil Texture
  • Bulk Density (g/cm3)
  • Soil Carbon Stock and/or Density (tons/cm)
  • Approximate Area: 751.64 m2

    Instructions for DOIs for This Site

    When using DOIs for this site, use the publications and acknowledgments listed below.

    DOIs

    Publications to use for Citations for this Site

    Acknowledgements

    • California Department of Water Resources; USDA/AFRI

    Resources

    This page displays the list of downloads of data for the site {{siteId}}.

    NOTE: Version refers to the version of the AmeriFlux BASE-BADM product for the site was downloaded by the user and the download count indicates the number of times the person downloaded that version. The download count indicates the number of times the person downloaded the data.

    Year Range
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    Products

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    MODIS NDVI

    Normalized Difference Vegetation Index image for this site.

    For time series, data download and other MODIS products for this site, visit MODIS cutouts.

    Citation

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    Citation:

    ORNL DAAC. 2008. MODIS Collection 5 Fixed Sites Subsetting and Visualization Tool. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1251

    Read more on how to cite these MODIS images. Data come from NASA’s MODIS instruments installed on satellites Terra and Aqua, which scan the entire Earth’s surface every one to two days.

    Year Publication
    2016 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, Agricultural and Forest Meteorology, 223, 181-193.
    2016 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, 121, 978-1001.
    2012 Hatala, J. A., Detto, M., Sonnentag, O., Deverel, S. J., Verfaillie, J., Baldocchi, D. D. (2012) Greenhouse Gas (CO2, CH4, H2O) Fluxes From Drained And Flooded Agricultural Peatlands In The Sacramento-San Joaquin Delta, Agriculture, Ecosystems & Environment, 150, 1-18.
    2012 Hatala, J. A., Detto, M., Baldocchi, D. D. (2012) Gross Ecosystem Photosynthesis Causes A Diurnal Pattern In Methane Emission From Rice, Geophysical Research Letters, 39(6), n/a-n/a.
    2014 Knox, S. H.,, Sturtevant, C., Matthes, J.H., Koteen, L., Verfaillie,J., Baldocchi. D. (2014) Agricultural peatland restoration: effects of land-use change on greenhouse gas (CO2 and CH4) fluxes in the Sacramento-San Joaquin Delta, Global Change Biology, 21, 750-765.

    BADM for This Site

    Access the Biological, Ancillary, Disturbance and Metadata (BADM) information and data for this site.

    BADM contain information for many uses, such as characterizing a site’s vegetation and soil, describing disturbance history, and defining instrumentation for flux processing. They complement the flux/met data.

    * Online updates are shown on the Overview tab real time. However, downloaded BADM files will not reflect those updates until they have been reviewed for QA/QC.