Laserfiche WebLink
<br />RAIN DROPS -SIZE AND EVAPORATION <br /> <br />Rain drops always evaporate to some extent as they fall from <br />a cloud to the ground. <br /> <br />The amount of evaporation depends on several different factors, <br />some of which are: <br /> <br />, <br /> <br />1. The height of cloud base above the ground. <br /> <br />2. How dry the air is between cloud and the ground. <br /> <br />3. How big the rain drops are which the cloud produces. <br /> <br />All influence how much of the rain will ultimately reach the <br />ground. <br /> <br />Generally rain drops are small. <br /> <br />In an "average" cloud, over 40% of the rain drops are 1/16 <br />inch in diameter and smaller. The largest drclps rarely <br />exceed about 5/32 inch in diameter in any cloud. <br /> <br />The size of the rain drops depends, most strongly, on the <br />cloud's updraft - also, upon the amount of water vapor pre- <br />sent in the air forming these updrafts. <br /> <br />THIN <br /> <br /> <br />1 0, 0 0 0 <br /> <br /> <br />20,000 <br /> <br />15,000 <br /> <br />-'---~/ <br /> <br />~ <br /> <br />YT <br /> <br />33 <br /> <br /> <br />THICK <br />