The Polar Summer MLT Plasma Environment as Seen by the DROPPS Sounding Rockets

Details The Polar Summer MLT Plasma Environment as Seen by the DROPPS Sounding Rockets The Polar Summer MLT Plasma Environment as Seen by the DROPPS Sounding Rockets

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsa21a0240a&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SA21A-0240

Physics

2461 Plasma Interactions With Dust And Aerosols (7849), 2467 Plasma Temperature And Density, 2494 Instruments And Techniques, 3349 Polar Meteorology

Scientific paper

During early July, 1999, the DROPPS (Distribution and Role of Particles in the Polar Summer Mesosphere) campaign launched two rocket payloads whose purpose was to study the polar summer MLT (mesosphere and lower thermosphere), particularly PMSEs (polar mesospheric summer echoes) and PMCs (polar mesospheric clouds). The rockets were launched from the Andøya Rocket Range in Norway the nights of the 5th and 14th of July. Both payloads included a front-mounted PID (Particle Impact Detector) consisting of charge and mass telescopes to measure aerosol and dust mass distributions. Ice particles of nanometer size are believed to be responsible for PMSEs through the process of electron scavenging. Evidence for this process is suggested, for example, by the presence of an electron "biteout" simultaneously measured by several instruments at an altitude of ~82-87 km during the first DROPPS launch. This presentation will characterize similarities and differences between both flights as seen by the charge and mass telescopes, starting at launch until the loss of data on the downleg of each flight. Various stages of the flights will be considered in detail, such as the PMSE layer and the apogee at 117 km, as well as the calibration of the data before launch.

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