Tropical cyclones (Hurricanes)

Description

A Levels Geography (Unit 1- Extreme weather) Mind Map on Tropical cyclones (Hurricanes), created by lucyhacking on 28/11/2013.
lucyhacking
Mind Map by lucyhacking, updated more than 1 year ago
lucyhacking
Created by lucyhacking about 11 years ago
93
2

Resource summary

Tropical cyclones (Hurricanes)
  1. Also called typhoons/cyclones/willywillys
    1. Develop over warm oceans, where oceans are deep and temp is greater than 26degrees
      1. Located where ocean temp is at its highest (Autumn)
        1. Located where 2 Hadley Cells meet, within the trade wind belt between 5 and 20 degrees latitude North or South of the equator
          1. Once formed move Westwards (due to spin of the Earth) following unpredictable course and loose energy when they reach land
    2. Form when ITCZ has moved to its most Notherly point (in that area) allowing 2 air masses to merge at low levels
      1. Unlike depressions hurricanes occur when temperatures, pressure and humidity are uniform over a wide area
        1. Intense low pressure exists at the Earths surface
          1. To enable cyclone to move must be a continuous source of heat to maintain rising air current AND large supply of moisture which creates condensation+rainfall
      2. The eye of the storm
        1. Storm has to be fully developed
          1. Area 30-50km wide
            1. Light winds
              1. Clear skies
                1. (Anomalous) High pressure
                  1. Increases warming+instability+intensity
                  2. Tropical cyclones referred to as hurricanes- begin in the Atlantic ocean
                    1. Tropical cyclones referred to as typhoons- begin in Specific ocean(near Asia)
                      1. Life Span
                        1. 7-14 days
                          1. Loses energy as...
                            1. heat source is removed (cooler seas)
                              1. increase in friction (over land)
                                1. reduced supply of water (over land)
                              2. Cyclone's greatest point of destruction is by the coastline
                                1. If they remain over warm water they continue to grow in size and strength

                                  Media attachments

                                  Show full summary Hide full summary

                                  Similar

                                  Geography Quiz
                                  PatrickNoonan
                                  Geography Coastal Zones Flashcards
                                  Zakiya Tabassum
                                  Using GoConqr to study geography
                                  Sarah Egan
                                  All the Countries of the World and their Capital Cities
                                  PatrickNoonan
                                  Tectonic Hazards flashcards
                                  katiehumphrey
                                  Volcanoes
                                  1jdjdjd1
                                  River Processes and Landforms
                                  1jdjdjd1
                                  GCSE Geography - Causes of Climate Change
                                  Beth Coiley
                                  The Rock Cycle
                                  eimearkelly3
                                  Plate Tectonics
                                  eimearkelly3
                                  Characteristics and Climate of a hot desert
                                  Adam Collinge