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Site tower team member name (First Last/Family).: |
Dennis Baldocchi |
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Site tower team member role: |
PI (LIST(TEAM_ROLE)) |
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Site tower team member email: |
baldocchi@berkeley.edu |
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Site tower team member institution (required for PI only): |
University of California, Berkeley |
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Site tower team member address (not required): |
Department of Environmental Science, Policy and Management 130 Mulford Hall |
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Site tower shipping address: |
54 Mulford Hall Berkeley, CA 94720 |
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Network affiliation(s) of the site.: |
AmeriFlux (LIST(NETWORK)) |
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Method used to measure the flux variables: |
(LIST(FLUX_METHOD)) |
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Flux variable measured: |
(LIST(FLUX_VARIABLE)) |
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Date when data collection for the reported flux variable/method started.: |
(YYYYMMDDHHMM) |
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Date when data collection for the reported flux variable/method ended: |
(YYYYMMDDHHMM) |
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Operational status of flux measurements.: |
(LIST(FLUX_OPERATIONS)) |
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Flux measurements comments: |
|
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State or province: |
California (LIST(STATE_PROVINCE)) |
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Short description of the site characteristics and history: |
The Twitchell Corn site is a corn field on peat soil. The tower was installed on May 17, 2012 and was equipped to analyze energy, H2O and CO2 fluxes. The field was planted in early May 2012 and harvested in early November 2012. The field was fallow during the non-growing season. The variety of corn used was ES-7477 hybrid corn commercialized by Eureka seeds. The site is near US-Tw1, US-Tw3 and US-Twt sites. |
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Site research topics: |
Carbon, water and energy fluxes from conventional drained agriculture in the Sacramento San-Joaquin Delta, California |
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Site funding agencies/institutions (one column only): |
California Department of Water Resources |
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Latitude of the site.: |
38.104713 (decimal deg ref WGS84) |
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Longitude of the site: |
-121.64334 (decimal deg ref WGS84) |
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Elevation of the site above sea level: |
-5 (m) |
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Begin date of the location information: |
(YYYYMMDDHHMM) |
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Location information comments: |
|
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Vegetation type based on the IGBP definition.: |
CRO (LIST(IGBP)) |
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Date when this vegetation type first applied: |
(YYYYMMDDHHMM) |
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Vegetation type comments: |
|
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Land ownership type: |
public (LIST(LAND_OWNERSHIP)) |
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Land owner: |
California Department of Water Resources |
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Tower web site URL (maintained by tower team): |
(URL) |
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Papers relevant for understanding the site: |
|
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DOI of the reference: |
|
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Suggested use of the reference: |
(LIST(REFERENCE_USAGE)) |
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Brief description of paper relevance or other comments: |
|
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Acknowledgement text (88 character limit): |
This project was supported by California Department of Water Resource Contract 006550 |
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Additional information about the acknowledgement: |
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Offset from UTC of site data: |
-8 (hours) |
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Begin date of the UTC offset: |
(YYYYMMDDHHMM) |
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Offset from UTC comments: |
|
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Climatological long-term mean annual average air temperature: |
15.5 (degrees C) |
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Climatological long-term mean annual average precipitation: |
420 (mm) |
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K�ppen climate classification: |
(LIST(CLIMATE_KOEPPEN)) |
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Slope and/or relief of the site: |
(LIST(TERRAIN)) |
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Direction the site is facing (Exposure): |
(LIST(ASPECT)) |
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Prevailing wind direction: |
254 (LIST(DIR)) |
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Distance for which the ecosystem is homogeneous in the prevailing wind direction.: |
(m) |
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Days per year that the site is covered by snow: |
(days) |
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Recent and historic disturbance and management events that affect the tower site years of measurement: |
(LIST(DIST_MGMT)) |
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Type of physical tower structure used in the site: |
(LIST(TOWER_TYPE)) |
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How the eddy covariance system is powered: |
(LIST(TOWER_POWER)) |
