Abstract Details
| Name: Suraj Affiliation: Asst. prof. Conference ID: ASI2015_717 Title : Study of signal strength of cosmic radio noise using riometers Authors and Co-Authors : S. S. Nikte1,2, A. K. Sharma1*, D. P. Nade1,3 , G. A. Chavan1,O. B. Gurav1 , M. P. Yadav2, P. T. Patil4, R. N. Ghodpage4, M. V. Rokade5 and R. V. Bhonsle1 1Earth and Space Science Laboratory, Department of Physics, Shivaji University, Kolhapur, India 2Department of Basic Sciences and Humanities, Vishveshwarya Technical Campus Patgaon-Miraj, India 3Department of Basic Sciences and Humanities, Sanjay Ghodawat Group of Institutions (SGI), Atigre, India 4Medium Frequency Radar, Indian Institute of Geomagnetism, Shivaji University Campus, Kolhapur, India 5Centre for Materials for Electronics Technology (C-MET) Hyderabad, 500051 Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : In this paper we have studied latitudinal and longitudinal variations in the signal strength of cosmic radio noise for both the hemispheres. The quiet-time (ΣKp ≤ 3) daily variations of the cosmic radio noise at Polar, auroral, subauroral and mid-latitude stations during period of solar minimum are utilized to develop the quiet day pattern of cosmic noise signals with corrected geomagnetic latitude and longitude. Data of three southern and seven northern riometer stations have been used in the present study. Riometers at different locations will observe a different part of the sky noise and that is the reason that QDCs are produced for each individual riometer. Average of five international quiet days is done to execute a signal pattern for a particular month. For polar latitudinal stations Davis and Mason (Geomag lat.73.05˚S, Geomag Long. 111.67˚E), it is observed that there is a change in the maximum value of the signal strength. We observed shift of quiet day pattern in each month is due to the sidereal day. Keywords: Riometer, Quiet Day Curve, Ionospheric absorption |