Arctic Boreal Vulnerability Experiment ABo VE 2017 ABo

Arctic Boreal Vulnerability Experiment (ABo. VE) 2017 ABo. VE Airborne Campaign National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pr el im in ar y 9 June 2017 (DOY 160) ATM-C: Nome – North Slope – Fairbanks Charles Miller, Deputy Science Lead Jet Propulsion Laboratory, California Institute of Technology and the ABo. VE Science Team JPL Proprietary Information For Hank Margolis, Eric Kasichke, Bruce Tagg NASA HQ Summer 2017

9 June 2017/DOY 160 Nome – North Slope – Fairbanks CARVE Assets Deployed: Nome – ATM-C/Mooney (N 617 DH)/Atmospheric CO 2, CH 4, CO Justin and “Bear” Daily Summary: • All sensors operating nominally 2017 ABo. VE Airborne Campaign 2 Arctic Boreal Vulnerability Experiment ATM-C Circuit #2 June 2017

9 June 2017/DOY 160 72 -Hour Look Ahead CARVE All plans weather dependent Saturday 10 June 2017 (DOY 161): • Rest Sunday 11 June 2017 (DOY 162): • Rest Monday 12 June 2017 (DOY 163): • Fairbanks – Yellowknife transit • CANCELLED DUE TO WEATHER Tuesday 13 June 2017 (DOY 164): • North Slope Loop Wednesday 14 June 2017 (DOY 165): • Fairbanks – Yellowknife transit 2017 ABo. VE Airborne Campaign 3 Arctic Boreal Vulnerability Experiment ATM-C Circuit #2 June 2017

9 June 2017/DOY 160 Nome – North Slope – Fairbanks CARVE Flight Plan: Nome – Ivotuk – Atqasuk – Barrow – Deadhorse – Umiat – Toolik Lake – Fairbanks Barrow Atqasuk Ivotuk Kotzebue Deadhorse Umiat Toolik Fairbanks Nome 2017 ABo. VE Airborne Campaign 4 Arctic Boreal Vulnerability Experiment ATM-C Circuit #2 June 2017

1 May 2017/DOY 122 Nome – North Slope – Fairbanks 2017 ABo. VE Airborne Campaign 5 Arctic Boreal Vulnerability Experiment CARVE ATM-C Circuit #2 June 2017

6 June 2017/DOY 157 Yellowknife – Daring Lake – Inuvik CARVE CO 2, CH 4, CO, H 2 O profiles vs altitude and latitude (left) and longitude (right) • +4 -6 ppm CO 2 near surface (Z < 2 km) CO 2 enhancements north of 68 N, -0 -2 ppm CO 2 depletions south of 68 N • +10 -30 ppb CH 4 enhancements observed at all locations for Z < 2 km 2017 ABo. VE Airborne Campaign 6 Arctic Boreal Vulnerability Experiment ATM-C Circuit #2 June 2017

1 May 2017/DOY 122 Nome – North Slope – Fairbanks 2017 ABo. VE Airborne Campaign 7 Arctic Boreal Vulnerability Experiment CARVE ATM-C Circuit #2 June 2017

9 June 2017/DOY 160 Nome – North Slope – Fairbanks CARVE CO 2 v CH 4 and CO 2 v CO tracer-tracer correlation plots with colors showing pressure altitude (top) and H 2 O (bottom) • Near surface CO 2 v CH 4 show evidence of both C release and C uptake • Largest CO 2 depletions correlate with H 2 O > 0. 70% • Largest CH 4 enhancements tied less strongly to max H 2 O 2017 ABo. VE Airborne Campaign 8 Arctic Boreal Vulnerability Experiment ATM-C Circuit #2 June 2017