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State of the art Greenhouse gas and Trace gas measurements at Lutjewad, Groningen

State of the art Greenhouse gas and Trace gas measurements at Lutjewad, Groningen. Measuring CO 2 , CH 4 , CO, N 2 O, SF 6 and 222 Radon to determine their atmospheric concentrations and source/sink functions. PhD research outline by Sander van der Laan

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State of the art Greenhouse gas and Trace gas measurements at Lutjewad, Groningen

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  1. State of the art Greenhouse gas and Trace gas measurements at Lutjewad, Groningen Measuring CO2, CH4, CO, N2O, SF6 and 222Radon to determine their atmospheric concentrations and source/sink functions PhD research outline by Sander van der Laan Center for Isotope Research, Groningen 16 December 2005

  2. Lutjewad, Groningen

  3. Research goals • To quantify the fluxes of CO2,CH4andN2O using eddy covariance, radon and gradient measurements • To monitor atmospheric concentrations of CO2, CH4, CO, N2O, SF6

  4. Measurement site • Highly interesting/complex measuring site • North: • 0.5 km reclamation area with salt tolerant grasses10 km mostly tidal flat area (distance to schiermonnikoog) • South: • Cropland/grassland

  5. Measurement site

  6. Measurement site • North/North-West(Wadden Sea) • North • Mostly tidal flats • North-West • More open water

  7. Measurement site • South/South-east • Mostly (cropland/grassland) • Important parameters: • Land use, harvest, cattle, fertilization, crop density

  8. Planned measurements at Lutjewad In short: • Atmospheric concentration measurements of CO2, CH4, CO, N2O, SF6 (GC) at 3 different heights (gradient) • 222Radon concentrations (radon detector) • 222Radon flux measurements (radon flux chambers) • CO2 flux measurements (eddy covariance) • CO2,CH4 and N2O flux measurements (radon/gradient) • O2 concentration measurements (oxzilla)

  9. Available Equipment/data • Modified Agilent 6890N gas chromatograph • Concentrations of CO2, CH4, CO, N2O, SF6 • At 7 m, 40 m and 60 m

  10. Available Equipment/data

  11. Available Equipment/data • Eddy covariance (CO2 flux measurements) • Licor 7500 CO2/H2O analyzer • Gill 3D-sonic T15 wind meter

  12. Preliminary measurements CO2 uptake (growth period) Average fluxes during 3 weeks of measurements, all wind directions

  13. Preliminary measurements Inversion layer effect 1/2 Hr average CO2 fluxes during 3 weeks of measurements, Land

  14. Preliminary measurements 1/2 Hr average CO2 fluxes during 3 weeks of measurements, Sea

  15. Available Equipment/data • 222Radon activity detector • Radon concentrations • 222Radon- and CO2 flux chambers • Radon flux measurements

  16. Available Equipment/data mBq/m3 N W S O N

  17. Meteo data • (wind direction, rain, temperature, solar radiation) • Agricultural data, sea-water level, soil research Available Equipment/data • 14C isotope measurements (14C/CO ratio)

  18. Questions/ suggestions for research

  19. Available Equipment/data mBq/m3 N W S O N

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