Changes in Precipitation Water and ice Max amount of precipitation water Appearance of precipitation ice  Max amount of precipitation ice Disappearance of precipitation water Min amount of precipitation ice Atmospheric level (in km) 0.5 0.5-1 2.5-3 <3 18 Areal average (gm-3) 0.005 0.001 0.006 0.00 0.001

Table 1: Physical changes in precipitation water and ice estimated by TRMM-3A12 over Iran within different atmospheric levels (in km) during 1998-2005.