Spectrometric and Imaging Measurements of a Spectacular Gravity Wave EventObserved During the ALOHA-93 Campaign

摘要

During the ALOHA-93 campaign, coincident imaging and interferometric measurementsof the near infrared and visible wavelength nightglow emissions were made from Haleakala Crater, Maui. On 10 October, 1993, a most unusual wave event was observed. This disturbance appeared as a sharp 'front' followed by several conspicuous wave crests which progressed rapidly through the imager's field of view (180 deg). As the front passed overhead, the interferometer detected a sudden jump in both the OH intensity (>50%) and its rotational temperature (approx. 20K) with the temperature increase, leading the intensity by almost 15 min. At the same time, the imager registered a sharp decrease in the OI (557.7 nm) emission intensity. A description of this event is provided. jg p2.