Ozone Depletion in Filaments of the Arctic Polar Vortex, Observed - - PowerPoint PPT Presentation

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ozone depletion in filaments of the arctic polar vortex
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Ozone Depletion in Filaments of the Arctic Polar Vortex, Observed - - PowerPoint PPT Presentation

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Ozone Depletion in Filaments of the Arctic Polar Vortex, Observed the First Global Hawk Science Mission J. W. Elkins 1 , J. D. Nance 1,2 , E. J. Hintsa 1,2 , F. L. Moore 1,2 , G. S. Dutton 2 , S. J. Oltmans 1,2 , L. Patrick 1,2 , R.S. Gao 1 , B.

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Ozone Depletion in Filaments of the Arctic Polar Vortex, Observed the First Global Hawk Science Mission

  • J. W. Elkins1, J. D. Nance1,2, E. J. Hintsa1,2, F. L. Moore1,2,
  • G. S. Dutton2, S. J. Oltmans1,2, L. Patrick1,2, R.S. Gao1,
  • B. Johnson1, E. A. Ray1,2, B.D. Hall1,E. Kort3,

D.W. Fahey1, P. A. Newman4, and S.C. Wofsy5

1NOAA/ESRL 2CIRES, CU 3JPL 4NASA GSFC 5Harvard Univ.

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How can we measure polar O3 loss? When it is not

  • bvious as below?

GMD data, courtesy Bryan Johnson

Unmanned Aircraft Systems (UAS), like Global Hawk, bridge the gap between ground based and satellite measurements.

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How good are our UAS measurements? Comparisons of Unmanned Global Hawk data vs

  • 1. Manned NCAR HIAPER (Gulfstream-V).
  • 2. MLS instrument on AURA satellite.

UCATS &O3 QCLS PANTHER Global Hawk (GH) HIAPER or GV Fast O3 Classical O3 GV GV GV GH GH

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Ozone loss observed on 7 May

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0.5 - 0.7 ppm

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CLaMS Model Simulation for 7 April 2010 (450K ~ 17 km)

Courtesy of Jens-Uwe Grooss, Forschungszentrum Juelich

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CLaMS Accumulated Ozone Loss since 1 Dec 2009

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Conclusions

  • Overflight of the Global Hawk over the

GV during HIPPO/3 produced similar tracer-tracer relationships with structure.

  • There was a good agreement of

common tracers from different instruments on two aircraft and one satellite instrument.

  • Breakup of the polar vortex with low
  • zone during HIPPO/3 and GloPac was
  • bserved in filaments.
  • Agreement of ozone loss between
  • zone loss and model simulation.
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Extras

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7 April 2010

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12 March 2010