Study of atmospheric waves over low latitude station kolhapur using night airglow technique

Abstract

Simultaneous photometric measurements of the OI 630.0 nm, OI 557.7 nm and OH band hydroxyl lines from a low latitude station, Kolhapur (16.8° N, 74.2°E) for the period of Jan.Feb.2004 were analyzed to study the atmospheric waves (gravity and tidal) characteristics and associated processes on clear, moonless. We present the nocturnal intensity variations of the different airglow emission lines observed using multispectral photometer. The analysis of the recorded data shows the presence of both upward and downward propagating waves. Commonly observed wave periods are near values of the tidal periods with 6, 8 and 12 hours sub harmonics. The vertical wavelength of both short and long period waves lies between 22 to 132 Km.