Isobaric Study guides, Class notes & Summaries

WX 201 Exam 3 with correct Answers The contour lines drawn on a 500 mb chart are lines of constant height The unit of pressure most commonly found on a surface weather map is millibars or hectopascals Isobaric surfaces are ____ in warm, less-dense air and ____in cold, more-dense air. higher; lower Because of friction, surface winds move ____ winds aloft with the same pressure gradient. more slowly than The pressure gradient force is directed from higher pressure toward l...

WX 201 - Exam 2 Questions and Answers The subtropical jet stream is usually found between ________. 20 degrees to 30 degrees latitude, 200-mb level The summer monsoon in eastern and southern Asia is characterized by ________. wet weather and winds blowing from sea to land The wind around a surface high pressure center in the Northern Hemisphere, blows _______ and outward from the center. clockwise Both the polar front jet stream and the subtropical jet stream are found at whic...

WX 201 Exam 2 with correct Answers (Graded A) Analysis Chart Depict actual data obtained at a given observation time Forecast Chart Computer model charts predicting future conditions of the atmosphere; surface charts and upper level charts are created Constant altitude charts All locations at the same altitude above ground level (for surface analysis, pressures are typically adjusted to MSL) Constant pressure charts all locations on the chart have the same pressure; contour l...

System - The portion of the universe we have singled out for study surroundings - Everything else in the universe universe - System and surroundings work - the action of a force through a distance heat - Transfer of energy from hotter to colder object heat capacity - The amount of heat needed to raise the temperature by 1 K Heat Tax - Increase in surroundings comes from the heat from the system Kinetic energy - Energy of motion potential energy - Energy of an object by virtue of its posi...

What is the purpose of the Surface Analysis Chart? analyzed charts of surface of surface wx observations (land, ship, buoy) What is an isobar? lines of constant pressure, depict on sea level pressure What is a troph? an extended region of reflectivity low pressure What is a ridge? an extended region of relatively high pressure What does a high and low pressure system look like on a surface analysis chart? either H or L What does a troph and ridge look like on a surface analysis ch...

WX 201 Exam 3 w- HW 16 and 17 Questions and Answers Due to Hadley cell formation and the Coriolis force in both hemispheres, winds aloft flow a. easterly b. southerly c. westerly d. randomly e. northerly C Which air mass woudl show the most dramatic change in both temperature and moisture content as it moves over a large body of very warm water? a. mA in winter b. mP in winter c. cP in winter d. cT in summer e. mT in summer C If you are standing directly south of a smo...

WX 201 Exam 2 Questions with Correct Answers Atmospheric Charts - Answer-• Contours: - Isobars or height contours (solid), - isotherms (long dash), or - isotachs (short-dash) • Include station models at given stations • Lows, highs, troughs, ridges, fronts Isobaric charts - Answer-• Acquire weather balloon (radiosonde), satellite, & aircraft data from many stations at the same time - Create maps of height and temperature for a given constant pressure surface • Standard pre...

ATSC Exam 3 Questions and Answers Differences in station pressure are strongly influenced by changes in what? - Answer-Elevation Are pressure differences much greater vertically than horizontally? - Answer-Yes Because small height variations cause large changes in pressure what needs to be corrected? - Answer-Station pressure Station pressure is normally adjusted to a pressure at 0 meters this is reffered to as what? - Answer-Mean sea level (MSL) What is the adjusted station press...

WX 201 Final Exam Questions and Answers Chemicals called __ break down ozone molecules chlorofluorocarbons Since the turn of this century, CO2 in the atmosphere has: been increasing in concentration In a volume of air near the earth's surface, ____ occupies 78 percent and ____ occupies nearly 21 percent. Nitrogen, Oxygen Sinks of CO2 include photosynthesis The only substance near the earth's surface that is found naturally in the atmosphere as a solid, liquid, and a g...

Atmospheric Charts - Answer-• Contours: - Isobars or height contours (solid), - isotherms (long dash), or - isotachs (short-dash) • Include station models at given stations • Lows, highs, troughs, ridges, fronts Isobaric charts - Answer-• Acquire weather balloon (radiosonde), satellite, & aircraft data from many stations at the same time - Create maps of height and temperature for a given constant pressure surface • Standard pressure levels selected: 850, 700, 500, 300, and 2...