2) What general circulation wind belt is the place of origin for hurricanes? A) westerlies B) trade winds C) doldrums D) horse latitudes
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1 Meteo 1010 Homework 6 1) What is the difference between a typhoon and a hurricane? A) A hurricane is a true tropical cyclone, but a typhoon is not. B) A hurricane is stronger than a typhoon. C) They represent different phases in the development of a tropical storm. D) They occur in different ocean basins. 2) What general circulation wind belt is the place of origin for hurricanes? A) westerlies B) trade winds C) doldrums D) horse latitudes 3) What is the approximate diameter of a mature hurricane? A) km B) 50 km or less C) about 1000 km D) about 600 km E) more than 1000 km 4) Why do hurricanes initially form only in the tropics? A) Warm water temperatures are found there. B) Stronger pressure gradients are found there. C) Coriolis is weaker there. D) Subsiding air currents are found there. 5) What causes the winds of a hurricane to be so fast? A) coupling with the jet stream B) stronger Coriolis force C) very strong pressure gradient force D) tidal effects E) weaker Coriolis force 6) Why don't hurricanes develop on or near the Equator? A) The Coriolis effect is too weak to create rotation. B) The ITCZ inhibits the growth of the hurricane's thunderstorms. C) The water is too warm to allow for the storm's development. D) The question is false; hurricanes develop on the Equator all the time! 7) Hurricanes form A) between 35 degrees and 50 degrees latitude. B) between 20 degrees and 35 degrees latitude. C) at the equator. D) at various latitudes depending upon local conditions. E) between 5 degrees and 20 degrees latitude.
2 8) A hurricane must have sustained wind speeds of at least: A) 64 miles per hour. B) 94 miles per hour. C) 84 miles per hour. D) 74 miles per hour. 9) The doughnut-shaped wall of intense convective activity surrounding the center of the storm is called the: A) eye. B) eye ring. C) eye wall. D) core. 10) Why do surface wind speeds increase toward the center of a hurricane? A) reduced friction B) stronger Coriolis effect C) conservation of angular momentum D) warmer water 11) What type of clouds is most common in a hurricane? A) cumulonimbus B) cirrus C) nimbostratus D) stratus 12) The eye wall of a hurricane: A) has the greatest wind speeds. B) lies at the hurricane's outer edge. C) has the lightest precipitation. D) has the highest barometric pressure. 13) Why is the eye region of a hurricane largely free of precipitation and heavy clouds? A) rising air motion B) pressure gradient is weaker C) cooler temperatures D) sinking air motion 14) What determines when a tropical depression or storm is given hurricane status? A) water temperature B) wind speed C) diameter D) central pressure
3 15) Which one of the following is most intense? A) tropical storm B) tropical depression C) tropical disturbance D) tropical water 16) What is the proper order of storm intensity in terms of increasing wind speed? A) tropical storm, hurricane, tropical depression B) tropical depression, hurricane, tropical storm C) tropical storm, tropical depression, hurricane D) hurricane, tropical depression, tropical storm E) tropical depression, tropical storm, hurricane 17) Which of the following can diminish the intensity of a hurricane? A) moving over land B) significant increase in large-scale air flow aloft C) moving over warmer water with more moisture above it D) frequent lightning 18) What system is used to name hurricanes if the established list of names is exhausted in a given year? A) Latitude/longitude B) The Greek alphabet C) U.S. Presidents D) Roman numerals 19) The United States deadliest hurricane happened in 1900 in Galveston, Texas. Approximately how many deaths did the hurricane cause? A) 1000 B) 2000 C) 4000 D) ) The scale is used to establish categories of hurricane intensity. A) Stormfury B) Fujita C) Saffir-Simpson D) Johnson-Hildebrandt Page Ref: ) As a strong hurricane moves ashore, which of the following causes the most devastating damage in the coastal zone? A) storm surge B) strong winds C) torrential rains D) lightning
4 22) Carefully consider the photography of a hurricane in the South Atlantic shown above. Where would you expect to find the fastest winds? A) Letter A B) Letter B C) Letter C D) Letter D (central eye) Page Ref: 311
5 23) If you are in a tall building near the coast during a hurricane, where is the best place to be? A) in the basement B) on the highest floor possible C) below the tenth floor but above the first few floors D) in the stairwell 24) A GPS dropwindsonde is used for: A) measuring wind directions in the outflow of a hurricane. B) measuring wind speeds throughout every level of a hurricane. C) locating and measuring the diameter of the hurricane's eye at the surface. D) forecasting precipitation associated with the hurricane's eye wall. 25) Surface wind speeds inside a hurricane are estimated by: A) doubling the wind speeds measured on the outer perimeter of the storm. B) analyzing wave patterns visible in satellite imagery. C) calculating 90% of the wind speeds measured in the upper portions of the storm. D) measuring them with instruments on hurricane hunter aircraft. 26) What is the single greatest advancement in tools used for observing tropical cyclones? A) aircraft reconnaissance B) data buoys C) radar D) meteorological satellites 27) Since detection and tracking of hurricanes is now quite accurate, why does damage from these storms continue to increase? A) continued development of coastal areas B) poor forecasts of landfall area C) changes in tidal patterns D) hurricane intensity is greater 28) The initial detection and monitoring of tropical storms that may become hurricanes is accomplished by: A) ocean ships. B) ocean buoys. C) satellites. D) coastal observers. E) aircraft. 29) In the United States, the governmental agency responsible for gathering and disseminating weather-related information is the: A) American Meteorological Service. B) National Atmosphere Association. C) National Weather Service.
6 D) American Weather Association. 30) The process of predicting the future state of the atmosphere is called: A) weather analysis. B) weather predicting. C) weather forecasting. D) hindcasting. 31) The forecasts for local and regional weather are produced by: A) Weather Forecast Offices. B) National Cyclone Center. C) State Weather Forecast Offices. D) National Centers for Environmental Prediction. 32) The job of collecting, compiling and displaying weather data is done by: A) a weather prognostic. B) a weather forecaster. C) a weather reporter. D) a weather analyst. 33) The primary purpose of a radiosonde is: A) to acquire data about conditions in the upper atmosphere. B) to report data about surface conditions at an automated weather station. C) to compile data from thousands of automated weather stations into one file. D) to calculate numerical predictions of weather. 34) On a surface-level synoptic weather chart, a front is often identified by zones that exhibit: A) a strong jet stream. B) clear skies. C) gradual changes in pressure. D) abrupt changes in temperature, humidity, and wind direction. 35) An ensemble forecast is produced by: A) running one model several times with slightly different initial conditions. B) combining the results from several different numerical models into one forecast. C) slightly altering the underlying assumptions of a numerical model each time it is run. D) collecting the professional opinions of a group of meteorologists. 36) predict(s) that future weather will be the same as the present weather conditions. A) The analog method B) Persistence forecasts C) Trend forecasting D) Nowcasting Page Ref: 334
7 37) Upper-air maps are commonly drawn for all the following pressures, except: A) 500 millibars. B) 700 millibars. C) 200 millibars. D) 850 millibars. E) 1000 millibars. 38) One of the primary uses for a 500-mb map is: A) to estimate surface air temperature. B) to predict surface wind speeds. C) to determine the speed and direction of motion for a mid-latitude cyclone. D) to monitor the position of the polar jet stream. 39) Airflow aloft is often illustrated with, lines of equal wind speed. A) isotachs B) isobars C) isovels D) isometers 40) Why are some satellites described as being stationary? A) Their orbital motion matches the earth's rotation. B) They orbit over the earth's poles. C) They have no orbital motion. D) They can only observe stationary weather systems. E) Their altitude never changes. 41) These types of images are views of the earth the way an astronaut would see our planet from space. A) infrared images B) visible images C) Moon images D) water vapor images 42) Infrared images provide a way to determine which clouds are more likely to produce what? A) humidity B) drought C) precipitation D) wind 43) How can a satellite "see" water vapor in the atmosphere? A) The satellite is capable of sensing the wavelength of radiation typically emitted by water vapor. B) It can't see vapor it can only identify places where vapor is condensing. C) It estimates vapor based on the temperature of the atmosphere.
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