Universal fluctuations in tropospheric radar measurements A. Barucci, G. Macaluso, D. Mecatti, L. Noferini, D. Fanelli, A. Facchini, M. Materassi, M. Pieraccini and C. Atzeni EPL, 89 2 (2010) 20006 Published online: 04 February 2010 DOI: 10.1209/0295-5075/89/20006