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2.1.1 Tropical climates - Coggle Diagram
2.1.1 Tropical climates
Climate zones
Humid
Tropical rainforest Af
Tropical monsoon Am
Tropical savanna Aw
Arid
Sub-tropical steppe BSh
Tropical desert BWh
Characteristics
High temperature, variations in rainfall
Location
Climatic & hydrological systems
Global atmospheric circulation
Hadley cell itself
explains
BWh
Af
Migration of Hadley cell
Overhead sun
Tropics of Capricorn (23.5S) in Dec
Tropics of Cancer (23.5N) in June
Foundation of Am
Explains Aw and BSh
Synoptic scale circulation
Monsoon circulations
Seasons wrt to Northern Hemisphere
Winter (Dec)
ITCZ in the South
Differential heating
Influence of topography
Summer (June)
ITCZ in the North
Differential heating
Pressure gradient
Tropical cyclones
Location specific
Characteristics
Conditions necessary for formation
Ocean surface temperature > 26
Warm water to a depth of 70m
Absence in South Atlantic and South Pacific
Warm moist tropical atmosphere
Between 5-20 N/S of Equator
Low vertical wind shear
Large water bodies
ENSO
Neutral - Walker circulation
El Nino - Reversed Walker
La Nina - Strengthened Walker
Impact on the Southern Pacific
Southeast Asia (Western)
Coast of Peru (Eastern)
Irregular, spaced occurrences