Classification Cloud Types Height Composition High Clouds Prefix: ____________ _____________meters Middle Clouds Prefix: ___________ ____________meters Low Clouds Prefix: ____________ _____________meters Clouds of Vertical Development http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/home.rxml Description 1. A cloud is defined as _______________________________________________________________________________ 2. Describe adiabatic cooling. What is the adiabatic cooling rate? 3. What are three different substances that make up clouds? ___________________________ __________________________ __________________________ 4. Water vapor needs a surface on which to condense, these surfaces are called 5. List several examples of hygroscopic nuclei: 6. Number the steps of cloud formation in the correct order. Place a number 1 on the line of the step that occurs first. ________ As the moist air rises it cools. _______ Dark land on the ground absorbs the suns heat energy. _______ Water vapor in the air condenses into water droplets on tiny particles (condensation nuclei). _______ Moist air above the ground is warmed by the heat radiating from the ground. _______ The cooling air reaches its saturation point (dew point). _______ Moist air warms and becomes less dense so it rises. Of the 4 methods of cloud formation, which method is described above? _______________________________