Publication Date:
2019-06-28
Description:
Atmospheric atomic sodium was studied with a laser radar system. Photocount data were processed using a digital filter to obtain continuous estimates of the sodium concentration versus altitude. Wave-like structures in the sodium layer were observed, and there was evidence for the presence of a standing wave in the layer. The bottomside of the layer was observed to undulate with a period of about 2 1/2 hours, and the layer was observed to broaden through the night. A meteor ablation-cluster ion theory of sodium was developed. The theory shows good agreement with existing atmospheric observations as well as laboratory measurements of rate constants.
Keywords:
GEOPHYSICS
Type:
NASA-CR-157770
,
UILU-ENG-78-2501
,
AR-79
,
(ISSN 0568-0581)
Format:
application/pdf