Bert Scheeren and Peter Bergamaschi - Europa

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Meteorological conditions and air mass origin at Ispra 10 We distinguish three major meteorological conditions: Northerlies: • Clean, e.g. Föhn events, to moderately polluted air masses. • 12 h footprint up to several hundred km at Föhn. • Dominating during the fall and winter season. Stagnant conditions: • Very low wind speeds (
Highest GHG concentrations are found during southerly “Po Valley” winds and at low wind speed conditions 11 600 550 CO2 CH4 Ispra CO2 and CH4 as function of wind direction for 2008 Wind direction 2700 2500 2300 600 550 Ispra CO2 and CH4 as function of wind speed for 2008 Wind speed CO2 CH4 2700 2500 2300 500 450 500 2100 CH 4 CH 4 1900 450 2100 1900 400 350 1700 CO 2 400 1500 CO 2 1300 0 45 90 135 180 225 270 315 360 350 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 North South North Low High 1700 1500 1300 360 355 350 345 340 335 330 325 320 315 310 N2O SF6 Ispra N2O and SF6 as function of wind direction for 2008 Wind direction N 2 O 5 0 45 90 135 180 225 270 315 360 North South North 19 17 15 13 11 9 7 360 355 350 345 340 335 330 325 320 315 310 Ispra N2O and SF6 as function of wind speed for 2008 N2O 5 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Low N 2 O Wind speed High SF6 19 17 15 13 11 9 7
Page 1 and 2: First three years of CO 2 , CH 4 ,
Page 3 and 4: Why is the JRC involved in monitori
Page 5 and 6: The Ispra GHG station set-up and pe
Page 7 and 8: Regional GHG monitoring stations ar
Page 9: Catchment area for methane emission
Page 13 and 14: ppmv ppmv CO 2 at Ispra from Octobe
Page 15 and 16: ppbv ppbv N 2 O at Ispra from Octob
Page 17 and 18: 222 Radon at Ispra from September 2
Page 19 and 20: Good agreement between the PICARRO
Page 21 and 22: ppbv CH4 222 Radon flux in Bq m -2
Page 23 and 24: Annual mean fluxes for Ispra compar
Page 25 and 26: Flux data partitioning into three s
Page 27 and 28: High methane fluxes in air masses a
Page 29 and 30: ppbv N2O Large N 2 O point source 4
Page 31 and 32: Po Valley rice paddies flooded betw
Page 33 and 34: Potential event flux contribution f
Page 35 and 36: Ispra (green) and Milan in the TM5
Page 37 and 38: Total EDGAR based a-priori CH 4 emi
Page 39 and 40: 39 Link of the Ispra GHG-monitoring
Page 41 and 42: Near real-time data presentation on
Page 43: Summary; what have we learned from

Bert Scheeren and Peter Bergamaschi - Europa

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