Airborne Southern Hemisphere Ozone Experiment (ASHOE) / Measurement for Assessing the Effects of Stratospheric Aircraft (MAESA)

The data consist of in situ and remotely sensed measurements collected onboard the NASA ER-2 aircraft (including O3, H2O, N2O, CO2, CH4, CO, H2, SF6 and a wide range of CFCs); radiosonde, ozonesonde, and backscatter sonde balloon measurements; ground-based spectrometer and lidar measurements; and SAGE II satellite measurements. Theory teams provided calculations of: meteorological parameters in the form of partial hemispheric analyses, cross-sections along the ER-2 flight track, interpolations to the ER-2 flight path, and back- trajectories of selected parcels along the ER-2 flight path; photodissociation rates of selected chemical species along the ER-2 flight path; and cloud properties along the ER-2 flight track.

The data are held on CD-ROM at the BADC and are available for browsing purposes. If you want to use the data in earnest you should order a copy of the CD from one of the contact addresses listed below.

All files within this release are standard MS-DOS ASCII files with variable length records. The file naming convention uses a two-character prefix followed by a six digit number (yymmdd) giving the year, month, and day (UT) on which the data begins. For files pertaining to a particular ER-2 flight, such as those in the er2 subdirectory, the date in the file name is the UT date of launch. A three character extension is used to identify the measurement platform or source. Those with two digits (e.g. Bhh) indicate the UT hour to which the data pertains.

The documentation on the CD-ROM has been extracted and made available through this WWW interface. This gives an inventory of the data on the CD and an outline of the data format.

The instrumentation payload of the aircraft is also detailed on the NASA ASHOE/MAESA website

Some preliminary results are available in the end-of-mission summary. A special section devoted to ASHOE will appear shortly in an issue of Journal of Geophysical Research (Atmospheres).

National Aeronautics and Space Administration, [Gaines, S.E.; Hipskind, S.; Anderson, D.E.; Anderson, J.G.; Atkinson, R.J.; Baumgardner, D.; Boering, K.A.; Chan, K.R.; DeMajistre, R.; Dye, J.E.; Elkins, J.W.; Fahey, D.W.; Gary, B.L.; Johnston, P.V.; Kelly, K.K.; Lait, L.R.; Lloyd, S.A.; Loewenstein, M.; Margitan, J.J.; Matthews, W.A.; May, R.D.; McCormick, M.P.; McElroy, C.T.; McGee, T.; McKenzie, R.; Newman, P.A.; Pfister, L.; Podolske, J.R.; Prather, M.J.; Proffitt, M.H.; Revercomb, H.E.; Salawitch, R.J.; Schoeberl, M.R.; Selkirk, H.B.; Smith, W.L.; Stimpfle, R.M.; Trepte, C.R.; Webster, C.R.; Wennberg, P.O.; Wilson, J.C.; Wofsy, S.C.; Wood, S.] . Airborne Southern Hemisphere Ozone Experiment (ASHOE), [Internet]. National Aeronautics and Space Administration, 1995, Date of citation. Available from http://team.badc.rl.ac.uk:50001/editAtom/badc.nerc.ac.uk__ATOM__dataent_ASHOE.

General queries about these pages or browsing the data should be directed to the BADC support line. If you have queries about specific experiments, contacts for the individual Principal Investigators are listed in the documentation on the CD-ROM. BADC (badc@rl.ac.uk)