(68-130415-B) Validation of Satellite Ozone-depleting Substance Measurements with Airborne Platforms
J.D. Nance1, F.L. Moore1, E.J. Hintsa1, G.S. Dutton1, D.F. Hurst1, B.R. Miller1, C. Sweeney1, B.D. Hall2, S.A. Montzka2, D.W. Fahey2, S.C. Wofsy3 and J.W. Elkins2
1Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309; 303-497-7002, E-mail: firstname.lastname@example.org
2NOAA Earth System Research Laboratory, Boulder, CO 80305
3Harvard University, Cambridge, MA 02138
A number of in situ gas chromatograph and flask sampling systems have been developed within Global Monitoring Division (GMD) since the early 1990s for the measurement of dozens of Ozone-Depleting Substances (ODSs) and climate-forcing trace gases aboard aircraft and balloon platforms. Two primary motivations driving these efforts are: 1) to explore the mechanisms by which many longer-lived ODSs are cycled through the stratosphere where they decay and interact with O3; 2) to provide airborne measurements at a range of altitudes for the purpose of validating remote measurements obtained from satellites. This poster will present some comparisons of satellite and aircraft measurements made during two recent airborne campaigns – Hiaper Pole-to-Pole Observations (HIPPO) and Global Hawk Pacific (GloPac). It will describe some important interpretation issues to be aware of, and briefly outline a low-cost method of vertically extending our measurements well above the altitudes reached by conventional aircraft. This new sampling method would significantly augment our airborne coverage – especially at stratospheric altitudes – and improve our ability to simultaneously address both motivations listed above.
Figure 1. Ground tracks of coordinated HIPPO/GloPac research flights overlapping beneath an Aura satellite overpass on April 13, 2010.