A highly portable, rapidly deployable system for eddy covariance measurements of CO2 fluxes

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To facilitate the study of flux heterogeneity within a region, the authors have designed, built, and field-tested a highly portable, rapidly deployable, eddy covariance CO{sub 2} flux measurement system. The system is built from off-the-shelf parts and was assembled at a minimal cost. The unique combination of features of this system allow for a very rapid deployment with a minimal number of field personnel. The system is capable of making high precision, unattended measurements of turbulent CO{sub 2} fluxes, latent heat (LE) fluxes, sensible heat fluxes (H), and momentum transfer fluxes. In addition, many of the meteorological and ecosystem variables ... continued below

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29 pages

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Billesbach, David P.; Fischer, Marc L.; Torn, Margaret S. & Berry, Joe A. September 19, 2001.

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Description

To facilitate the study of flux heterogeneity within a region, the authors have designed, built, and field-tested a highly portable, rapidly deployable, eddy covariance CO{sub 2} flux measurement system. The system is built from off-the-shelf parts and was assembled at a minimal cost. The unique combination of features of this system allow for a very rapid deployment with a minimal number of field personnel. The system is capable of making high precision, unattended measurements of turbulent CO{sub 2} fluxes, latent heat (LE) fluxes, sensible heat fluxes (H), and momentum transfer fluxes. In addition, many of the meteorological and ecosystem variables necessary for quality control of the fluxes and for running ecosystem models are measured. A side-by-side field comparison of the system at a pair of established AmeriFlux sites has verified that, for single measurements, the system is capable of CO{sub 2} flux accuracy of about {+-} 1.2 {micro}mole/m{sup 2}/sec, LE flux accuracy of about {+-} 15 Watts/m{sup 2}, H flux accuracy of about {+-} 7 Watts/m{sup 2}, and momentum transfer flux accuracy of about {+-} 11 gm-m/sec/sec. System deployment time is between 2 and 4 hours by a single person. The system was measured to draw between 30 and 35 Watts of power and may be run from available line power, storage batteries, or solar panels.

Physical Description

29 pages

Notes

OSTI as DE00836224

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  • Journal Name: Journal of Atmospheric & Oceanic Technology; Journal Volume: 21; Journal Issue: 4; Other Information: Submitted to Journal of Atmospheric & Oceanic Technology: Volume 21, No.4; Journal Publication Date: 04/2004

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  • Report No.: LBNL--48953
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 836224
  • Archival Resource Key: ark:/67531/metadc780022

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • September 19, 2001

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • April 4, 2016, 6:20 p.m.

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Billesbach, David P.; Fischer, Marc L.; Torn, Margaret S. & Berry, Joe A. A highly portable, rapidly deployable system for eddy covariance measurements of CO2 fluxes, article, September 19, 2001; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc780022/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.