The relative dispersion of cloud droplets : its robustness with respect to key cloud 1 properties 2 3

1 Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, 6 Israel 7 2 Department of Soil and Water Sciences, The Robert H. Smith Faculty of Agriculture, Food 8 and Environment, The Hebrew University of Jerusalem, Rehovot, Israel 9 3 Research Applications Laboratory, National Center for Atmospheric Research, Boulder, 10 CO, USA 11 4 Department of Geophysics and Planetary Science, Tel Aviv University, Israel 12 5 The Energy, Environment and Water Research Center, the Cyprus Institute, Nicosia, 13 Cyprus 14 15 16 17 18 December, 2014 19 20 21 22 23 24 25 26 *Corresponding author: ilan.koren@weizmann.ac.il 27 28