Observations of an intermediate layer during the Coqui II campaign

摘要: NASA sounding rocket 21.114, launched March 7, 1998, during the Coqui II campaign, provided neutral wind and plasma density measurements of a weak intermediate layer. The layer was centered near 140 km had an approximate peak 2200 cm -3 , measured winds were typically less than 40 m s -1 in agreement with shear formation theory coincident observations. data obtained flight allow us to explore structure field morphology Coupled simultaneous from Arecibo Observatory, upleg downleg profiles provide three spatially separated that enable first detailed investigation horizontal extent variation