Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsa43a1581p&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SA43A-1581
Physics
0305 Aerosols And Particles (0345, 4801, 4906), 0394 Instruments And Techniques, 3332 Mesospheric Dynamics, 3394 Instruments And Techniques
Scientific paper
The Cosmic Dust Experiment (CDE) onboard the Aeronomy of Ice in the Mesosphere (AIM) mission is a dust impact experiment designed to monitor the variability of the cosmic dust in ux. The instrument consists of fourteen permanently polarized thin plastic film sensors that generate an electrical signal when an impacting dust particle penetrates them. The total surface area is about 0.1 square meters and the detection threshold is about a micron in particle radius. The variability of these small grains is assumed to follow the variability of the dominant 100 micron radius particles, hence the measured flux can be used in correlation studies with various Noctilucent Cloud (NLC) activity indexes. CDE has been observing the cosmic dust influx since June 2007. In this talk, we present the first nine months of reduced data, focusing on the observed temporal and spatial variability of the dust influx. Data collected after February 2008 show increased levels of background noise and preliminary work on reducing this data will also be presented.
Horanyi Mihaly
James Dionne
Poppe Andreas
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