ATSC 113 Complete Final Exam Questions with Correct Answers

ATSC 113 Complete Final Exam Questions with Correct Answers Haboob - Answer-A dust or sandstorm that forms as cold downdrafts from a thunderstorm turbulently lift dust and sand into the air that can touch the ground Large convective clouds are driven by __ - Answer-buoyancy of warm rising air inside the cloud How does lightning form? - Answer-collision of ice crystals and graupel, where ice crystals carry a positive charge and heavier graupel creates negative charge. When voltage differences become greater, the insulate air becomes ionized to conduct electricity Castellanus clouds - Answer-look like small castle turrets. Are a clue that the atmosphere is becoming unstable K-h wave billow - Answer-does not need mountains to form, has short wavelengths Lenticular clouds - Answer-forms in the crest of mountain waves, looks like UFOs and indicate vertical wind oscillations that are good for sailplanes on the updraft rotor clouds - Answer-A turbulent cumuliform type of cloud that forms on the leeward side of large mountain ranges, under the crest of mountain waves Nimbostratus clouds - Answer-precipitate Pyrocumulus - Answer-Dense, associated with fire or volcanic activity. The cloud can trigger a thunderstorm and/or lightning. pileus clouds - Answer-A smooth cloud in the form of a cap. Occurs above, or is attached to, the top of a cumuliform cloud. Fractious/stud cloud - Answer-forms in turbulent humid air near the ground Fumulus - Answer-water droplet clouds over cooling towers Contrails - Answer-Clouds formed as jets fly through the air. Condensation trail look like long streaks. Windshear - Answer-A sudden change in wind speed and/or wind direction in a given area either in the vertical and/or horizontal (often close to the ground at airports) Anabatic winds - Answer-upslope movements of air, occur in the daytime when the sun can warm a mountain's slopes katabatic winds - Answer-cold air draining down mountain slopes into valleys during nighttime in the absence of larger scale winds Troposphere - Answer-The lowest layer of Earth's atmosphere, where all weather