EOSC 114 Final EXAM BRAND NEW!! (200+ QUESTIONS AND CORRECT ANSWERS) VERIFIED ANSWERS NEW UPDATE |A PASS

EOSC 114 Final EXAM BRAND NEW!! (200+ QUESTIONS AND CORRECT ANSWERS) VERIFIED ANSWERS NEW UPDATE |A PASS Storms make up.. - Answers - 75% of natural disasters deaths and damages in the US. Deaths from Severe Weather - Answers - Severe weather kills more people in the US than earthquakes, volcanic eruptions, and mass movements combined. Where does Weather occur? - Answers - In the troposphere. First 11 km. What is weather? - Answers - Conditions in the atmosphere at a given time and place. Temp, moisture, wind (rain and humidity), and pressure. What causes wind? - Answers - Pressure Differentials How do winds blow? - Answers - Winds push air parcels from areas of high pressure to areas of low pressure. What is an Air Parcel? - Answers - A theoretical package of air. Does not mix (much) with surrounding air. Pressure Gradient - Answers - Change in pressure across a distance. Sensible Heat - Answers - Heat we can sense or feel (or measure). On an atomic level this is really particle motion. Latent Heat - Answers - Heat "stored during melting or boiling. "Hidden" heat energy. Drives the state change. It is released as sensible heat when condensing or freezing. Liquid Water - Gaseous Heat - Answers - When liquid water becomes gaseous, heat is taken from the surroundings. When gaseous water becomes liquid, heat is transferred to surroundings. Latent Heat - Humid Air - Answers - Humid air can be an energy source for storms. (Air with lots of gaseous water). Composition of Air - Answers - Water vapour (0-4%) Nitrogen (78%) Oxygen (21%) Trace Gases Liquid Water Droplets Humidity - Answers - The amount of water vapour in the air. Mixing Ratio - Answers - Amount of water vapour/amount of all other gases Condensation - Answers - Vapour to liquid. Releases energy stored as latent heat. Evaporation - Answers - Liquid to vapour. Evaporation of water stores heat as latent heat. Saturation Value - Answers - Maximum humidity that air can hold. Air holding less than this is unsaturated. Equilibrium - Water Vapour - Answers - Warmer air can hold more water vapour at equilibrium than colder air. Saturation Mixing Ratio - Answers - This is when the mixing ratio is at equilibrium. SMR increases exponentially with temperature. What Causes Dry Air? - Answers - If too many water molecules in the air, then excess condenses into liquid, causing air to become drier. What Causes Moist Air ? - Answers - Too few vapour molecules in air, then evaporation exceeds condensation and air becomes moister. What causes humidity to remain below the saturation value? - Answers - If insufficient liquid water is available for evaporation. Saturation Humidity - Answers - If the SH value becomes smaller than the actual humidity, then condensation occurs. Condensation does 3 things - Answers - 1. Releases sensible heat into storms. 2. Reduces the humidity down to the equilibrium (saturation) value. 3. Produces or increases liquid cloud drops, which can grow to become rain drops. What is relative humidity - Answers - % of maximum water vapour that could be in the air. Dew Point - Answers - The temperature of an air parcel, when the air is saturated. Buoyancy - Answers - Warm air is less dense than cold air. If an air parcel is warmer than surroundings it rises. If cooler, it sinks. Boundary Layer - Answers - Layer of air closet to the ground. As the ground is heated by the sun boundary layer is also warmed (sensible heat). Solar heating can evaporate H2O (Latent heat) causing boundary layer to gain humidity. Thunderstorms - What do they bring? - Answers - Thunder, lightning, rain, hail, and strong winds. Powered by heat in the atmosphere (both sensible and latent). Saturated Air Parcel Will.. - Answers - Condense water if you cool it. Buoyancy Drives Thunderstorms - Answers - Condensation in thunderstorms releases latent heat. Latent heat warms the thunderstorm air making it buoyant and causing the air to rise. Drives the violent updrafts in thunderstorms. Cumulus Clouds - Answers - Puffy "popcorn" like clouds. Cumulus Humilis - Answers - (Humble), fair weather cumulus clouds, small. Cumulus Congestus - Answers - Towering cumulus clouds. Cumulonimbus Clouds (Thunderstorm) - Answers - Very large (tall) thick clouds, and cloud base near ground. Has an anvil (100 km wide)or mushroom shape (15 km wide). Made up of large cells. Multicell thunderstorm - Answers - Thunderstorms that contain 2 or more cells. Most do. Supercell thunderstorm - Answers - Very large, rotating single-cell thunderstorm. Supercell thunderstorm types: Low precipitation, high precip, and classical. Pick up warm, moist air in front and and dump cool air behind. Thunderstorm Cell Life Cycle - Answers - 1. Cumulus Stage. 2. Mature Stage 3. Dissipating Stage Circulation - Answers - Vertical motion due to buoyancy generates horizontal motion in surrounding air = circulation.