Comparison of MkIV balloon and ER-2 aircraft measurements of atmospheric trace gases
| Autor: | P. A. Romashkin, David W. Fahey, Elliot Atlas, Michael H. Proffitt, P. B. Voss, G. C. Toon, G. P. Bonne, Bhaswar Sen, T. P. Bui, James J. Margitan, J. F. Blavier, Dale F. Hurst, Ronald C. Cohen, R. M. Stimpfle, S. J. Oltmans, James W. Elkins, Frank Flocke, Christopher R. Webster, Sue M. Schauffler, Ru-Shan Gao, Randy D. May, L. A. Del Negro |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Atmospheric Science
Ozone Meteorology Analytical chemistry Soil Science Aquatic Science Oceanography Balloon Occultation Jet propulsion Troposphere chemistry.chemical_compound Geochemistry and Petrology Earth and Planetary Sciences (miscellaneous) Mixing ratio Stratosphere Earth-Surface Processes Water Science and Technology Ecology Paleontology Forestry Trace gas Geophysics chemistry Space and Planetary Science Environmental science |
| Zdroj: | Journal of Geophysical Research: Atmospheres. 104:26779-26790 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/1999jd900379 |
| Popis: | On May 8, 1997, vertical profiles of over 30 different gases were measured remotely in solar occultation by the Jet Propulsion Laboratory MkIV Interferometer during a balloon flight launched from Fairbanks, Alaska. These gases included H 2 O, N 2 O, CH 4 , CO, NO x , NO y , HCI, ClNO 3 , CCl 2 F 2 , CCl 3 F, CCl 4 , CHClF 2 , CClF 2 CCl 2 F, SF 6 , CH 3 Cl, and C 2 H 6 , all of which were also measured in situ by instruments on board the NASA ER-2 aircraft, which was making flights from Fairbanks during this same early May time period as part of the Photochemistry of Ozone Loss in the Arctic Region in Summer (POLARIS) experiment. A comparison of the gas volume mixing ratios in the upper troposphere and lower stratosphere reveals agreement better than 5% for most gases. The three significant exceptions to this are SF 6 and CCl 4 for which the remote measurements exceed the in situ observations by 15-20% at all altitudes, and H 2 O for which the remote measurements are up to 30% smaller than the in situ observations near the hygropause. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text