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The earth's ionosphere
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On the role of charged aerosols in polar mesosphere summer echoes
Submicron aerosols, as evidenced by the occurrence of polar mesospheric and noctilucent clouds, exist at heights from which polar mesosphere summer echoes (PMSE) are observed. We investigate the roleExpand
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Airglow observations of mesoscale low‐velocity traveling ionospheric disturbances at midlatitudes
This paper presents a summary of 630.0 nm emission observations made by the Cornell All-Sky Imager that have revealed an abundance of structure in the midlatitude thermosphere. Some events were soExpand
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Polar mesosphere summer radar echoes: Observations and current theories
The remarkably strong radar echoes from the summer polar mesosphere have been an enigma to atmospheric and radar scientists since their discovery more than a decade ago. Since then, moreExpand
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An explanation for anomalous equatorial ionospheric electric fields associated with a northward turning of the interplanetary magnetic field
Anomalous reversals of the zonal equatorial electric field component have some- times been observed when the interplanetary mag- netic field turns northward from a steady south- erly direction. WeExpand
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Investigations of thermospheric‐ionospheric dynamics with 6300‐Å images from the Arecibo Observatory
Pilot observations were conducted at Arecibo, Puerto Rico, using an all-sky, image-intensified CCD camera system in conjunction with radar, ionosonde, and Global Positioning System (GPS) diagnosticExpand
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Long‐duration penetration of the interplanetary electric field to the low‐latitude ionosphere during the main phase of magnetic storms
[1] It is well known that the interplanetary electric field can penetrate to the low-latitude ionosphere. It is generally believed that the penetration of electric fields can last only for ∼30 minExpand
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Gravity wave initiation of equatorial spread F: A case study
Jicamarca radar backscatter maps were made during four consecutive nights in March 1979. Two of these maps displayed single towering plumes extending to nearly 1000-km altitude. On a third night,Expand
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Polar mesosphere summer echoes observed with the EISCAT 933-MHz radar and the CUPRI 46.9-MHz radar, their similarity to 224-MHz radar echoes and their relation to turbulence and electron density
During a campaign to study polar mesosphere summer echoes (PMSE) the European Incoherent Scatter (EISCAT) UHF and VHF radars and the Cornell University portable radar interferometer (CUPRI) VHF radarExpand
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