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A Comparison of Aircraft and Ground-Based Measurements at Mauna Loa Observatory, Hawaii, During GTE PEM-West and MLOPEX 2During October 19-20, 1991, one flight of the NASA Global Tropospheric Experiment (GTE) Pacific Exploratory Mission (PEM-West A) mission was conducted near Hawaii as an intercomparison with ground-based measurements of the Mauna Loa Observatory Photochemistry Experiment (MLOPEX 2) and the NOAA Climate Modeling and Diagnostics Laboratory (CMDL). Ozone, reactive nitrogen species, peroxides, hydrocarbons, and halogenated hydrocarbons were measured by investigators aboard the DC-8 aircraft and at the ground site. Lidar cross sections of ozone revealed a complex air mass structure near the island of Hawaii which was evidenced by large variation in some trace gas mixing ratios. This variation limited the time and spatial scales for direct measurement intercomparisons. Where differences occurred between measurements in the same air masses, the intercomparison suggested that biases for some trace gases was due to different calibration scales or, in some cases, instrumental or sampling biases. Relatively large uncertainties were associated with those trace gases present in the low parts per trillion by volume range. Trace gas correlations were used to expand the scope of the intercomparison to identify consistent trends between the different data sets.
Document ID
20000078424
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Atlas, E.
(National Center for Atmospheric Research Boulder, CO United States)
Ridley, B.
(National Center for Atmospheric Research Boulder, CO United States)
Walega, J.
(National Center for Atmospheric Research Boulder, CO United States)
Greenberg, J.
(National Center for Atmospheric Research Boulder, CO United States)
Kok, G.
(National Center for Atmospheric Research Boulder, CO United States)
Staffelbach, T.
(National Center for Atmospheric Research Boulder, CO United States)
Schauffler, S.
(National Center for Atmospheric Research Boulder, CO United States)
Lind, J.
(National Center for Atmospheric Research Boulder, CO United States)
Huebler, G.
(National Oceanic and Atmospheric Administration Boulder, CO United States)
Norton, R.
(National Oceanic and Atmospheric Administration Boulder, CO United States)
Date Acquired
August 19, 2013
Publication Date
June 20, 1996
Publication Information
Publication: Journal of Geophysical Research
Publisher: American Geophysical Union
Volume: 101
Issue: D9
ISSN: 0148-0227
Subject Category
Environment Pollution
Report/Patent Number
Paper 96JD00213
Distribution Limits
Public
Copyright
Other

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