Questions on Cloud and Precipitation
1. You are hired to 'make rain' over a certain region. Which would you try?
(a) Drop Cloud Condensation Nuclei (CCN) into a warm cloud
(b) Drop CCN into an ice cloud
(c) Drop Ice Nuclei (IN) into a cloud of supercooled drops
2. Clouds are approaching from the NW.
(i) Sketch the isobars aloft.
(ii) The pressure aloft probably increases
(a) from NW to SE
(b) from NE to SW
(c) from SW to NE
3.. At first the clouds are high and lacy. Then they are replaced by thick clouds with fuzzy tops and precipitation. It is likely that
(a) a warm front is approaching
(b) a cold front is approaching
(c) cloud top temperature is above 0 C.
(d) cloud top temperature is below 0 C. (More than one answer may be correct.)