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Air Sampling from Ships of Opportunity by NOAA ESRL

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Presentation on theme: "Air Sampling from Ships of Opportunity by NOAA ESRL"— Presentation transcript:

1 Air Sampling from Ships of Opportunity by NOAA ESRL
Status Report for JCOMM/SOT-IV 16-21 April 2007 Geneva, Switzerland Ed Dlugokencky National Oceanic and Atmospheric Administration Earth System Research Laboratory Boulder, Colorado

2 Rationale -Measure large-scale spatial gradients for CO2 (13C, 18O), CH4 (13C, D), CO, H2, N2O, and SF6. -Use observed gradients with ATM to quantify sources and sinks. -Provides top-down constraint on GHG budgets.

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4 Species Analyzed in Samples from the Cooperative Global Air
Sampling Network Species Start Method Repeatability CO NDIR ppm CH GC/FID 1 ppb CO GC/RGD 0.5 ppb H GC/RGD 2 ppb 13C, CO IRMS 0.01‰ 18O, CO IRMS 0.03‰ N2O GC/ECD 0.2 ppb SF CG/ECD ppt 13C, CH GC/IRMS 0.06‰ D, CH GC/IRMS 1.5‰

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10 Time Series

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12 ITCZ SPCZ

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14 Future Plans Continue: Albert Rickmers (LA - Auckland)
Kapitan Afanasyev (LA – Auckland) Replace: NY - Capetown New Routes: Gulf of Mexico-Mediterranean St. Johns-Reykjavik Singapore-Hong Kong New Technology: Automated Sampler

15 Captains and Officers of:
Acknowledgements Steve Cook Derrick Snowden Carrie Wolfe Tim Kenefick Jim Farrington Captains and Officers of: Albert Rickmers Kapitan Afanasyev

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