Published 2015-01-01
Keywords
- Climate Change,
- Satellite Data,
- INSAT,
- Monsoon,
- Disaster Management
Copyright (c) 2017
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Abstract
Radon and its progeny concentration are measured at 1m height from surface of Earth in the premises of National Atmospheric Research Laboratory, Gadanki to observe the changes in activity concentration of radon particularly during instabilities that are occurring in the atmosphere. The measurements were carried out using AlphaGUARD and Alpha Progeny Meter for the measurement of radon and its progenies, respectively. It has been observed that, the changes in daily and weekly atmospheric radon levels are related to the stability or turbulence of the lower troposphere. The analysis reveals that from sunny windless days indicates growth and dissolution of the inversion layer. The study of radon concentrations during several atmospheric instabilities including period during Nilam cyclone, has shown interesting features, which are correlated with the conditions of stability or turbulence in the atmosphere.
References
- Gadhvi H, Jayaraman A, Absorbing aerosols: contribution of biomass burning and implications for radiative forcing, 28, pp. 103-111, 2010.
- Nagaraja Kamsali, Sathish L.A., Preliminary results of radon levels at Bangalore University, Bangalore, Solid State Nuclear
- Pressure (
- mbar)RH (%)Temp (0C)05-20, December 2013Radon (
- Bq/m3)10203040965970975980 Day Number04 06 08 10 12 14 16 18 20306090
- Track Detectors and Their Applications, Ed. NL Singh, Narosa Publications, New Delhi, India, pp. 71-77, 2013.
- Porstendorfer J., Butterweck G., Reineking A., Diurnal variation of concentration of radon and its short-lived daughters in the atmosphere near the ground. Atmospheric Environment, 25, pp. 709–713, 1991.
- Hoppel W.A., Anderson R.V., Willet J.C., 1986, National Academy Press, Washington, DC, USA, 149–165.
- Nagaraja K., B.S.N. Prasad, M.S. Madhava, M.S. Chandrashekara, L. Paramesh, J. Sannappa, S.D. Pawar, P. Murugavel, A.K. Kamra, Rad Meas (2003), 36, 413-417.
- Podstawczynska, K Kozak., W. Pawlak, J. Mazur, Seasonal and diurnal variation of outdoor radon (222Rn) concentration in urban and rural area with reference to meteorological conditions, Nukleonika, 55(4), pp. 543-547, 2010.
- D. Jasaitis, A. Daunaravičienė, A. Girgždys, Variation of activity concentration of radon decay products in the Curonian Spit, Ekologija, 58, pp. 405–412, 2012.