The correlation between air density and magnetic disturbance deduced from changes of satellite spin-rate
Affiliation:
1. Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamilnadu, India;2. Department of Physics, Anna University Regional Campus, Tirunelveli, India;3. Green Processing, Bioremediation and Alternative Energies Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;4. Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, PR China;1. Agricultural University of Athens, Lab of Ecology and Environmental Sciences, 75 Iera Odos Str., TK 11855, Athens, Greece;2. Key Laboratory of Agrometeorology of Jiangsu Province, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China;1. ARIANET Srl, via Gilino, 9, 20128 Milan, Italy;2. ARPA Lazio, Via Garibaldi, 114, 02100 Rieti, Italy
Abstract:
By analysing the spin-rate of the Ariel 2 satellite during March and April 1964, it has been possible to obtain values of air density at a height of 310 km in low latitudes with a finer resolution in time than is feasible with orbital analysis. On many occasions the measurements could be obtained once per revolution, i.e. every 100 min. The fine structure of the variations in density has been examined and the density has been found to be more closely correlated with equatorial Dst than with ap. For large negative values of Dst there appears to be a lag of the density behind Dst of about 2 hr, with a change of 1 gamma in Dst being associated with about a 114 role=presentation style=font-size: 90%; display: inline-block; position: relative;> per cent change in the density.
