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Lake Erie Center Environmental Sensor Network

Lake Erie Center Environmental Sensor Network. The Framework. Eddy Covariance Method. Quantifies gas exchange rate as a covariance of vertical wind velocity and CO 2 concentration Relies on a large homogenous area (footprint) for measurement

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Lake Erie Center Environmental Sensor Network

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  1. Lake Erie CenterEnvironmental Sensor Network

  2. The Framework

  3. Eddy Covariance Method • Quantifies gas exchange rate as a covariance of vertical wind velocity and CO2 concentration • Relies on a large homogenous area (footprint) for measurement • Requires state-of-the-art instrumentation with very quick response (10 hz) • Most direct and defensible way to measure ecosystem gas fluxes

  4. Station Locations

  5. Station Telemetry

  6. Mobile Flux Station • Mounted on the bow of the Mayflier II • Route passes through the microcystis algal bloom at the estuarine of the Maumee River • Through the sedimentary flow south of the Detroit River • Near complete depiction of spatial fluxes in the Western basin

  7. Preliminary ResultsPermS1 Fall 2011

  8. Marshland (coastal wetland) and Cropland (agricultural field) Sites • Marshland releases evident methane during the day • Cropland releases methane during the day and uptakes small amounts during the night • The orders of methane fluxes are much smaller in the cropland than in the marshland.

  9. Acknowledgments • Partially funded by the FSML program of the NSF, NOAA, and USDAFS • Overseen by Jiquan Chen, Carol Stepien, Michael Deal, Johan Gottgens, Housen Chu, Richard Becker, Thomas Bridgeman, and Kevin Czajkowski at The University of Toledo

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