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Accession Number ADA602467
Title Role of Neutral Atmospheric Dynamics in Cusp Density - 2nd Campaign.
Publication Date Dec 2013
Media Count 17p
Personal Author N/A
Abstract This report covers research undertaken to verify and improve models of atmospheric density fluctuations in the regions of the magnetic cusp, where increased electromagnetic activity can correspond to a cusp upwelling which can double the atmospheric density at altitudes of up to 400km, relevant to satellite drag orbits.. The grant funded a field trip in January 2013 to Svalbard for a joint optical/radar experiment to augment the first case study from January 2012. Two Fabry-Perot interferometers measured the non-ionized component of the upper atmosphere, and independent measurements of the ionosphere were made using the European Incoherent Scatter Svalbard Radar. These observations were used to partially verify a mechanism proposed by Carlson et al in 2012 which proposed that depositing energy at high altitudes would require less energy to lift a shorter column of air to higher altitude (thus increasing the atmospheric density). Observations showed that large vertical winds in the cusp area did correspond to large ion temperatures (>2000K), and low vertical winds with low ion temperatures.
Keywords Artificial satellites
Atmospheric density
Champ satellite
Electromagnetism
Fabry perot interferometers
Foreign reports
Optical radar


 
Source Agency Non Paid ADAS
NTIS Subject Category 55A - Aeronomy
94K - Laboratory & Test Facility Design & Operation
Corporate Author University Coll., London (England).
Document Type Technical report
Title Note Final rept. 1 Dec 2012-30 Nov 2013.
NTIS Issue Number 1423
Contract Number FA8655-13-1-3012

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