What does a moist climate mean?
[′mȯist ′klīm·ət] (climatology) In C.W. Thornthwaite’s climatic classification, any type of climate in which the seasonal water surplus counteracts seasonal water deficiency; thus it has a moisture index greater than zero.
What influences tropical wet climate?
Tropical Wet climate is only found along the Equator. … The tilt of the Earth that creates seasons doesn’t affect this area because the land along the Equator never tilts away from direct sunlight. This area is known for constant warm temperatures and regular rainfall.
Why is the climate often moist along the equator?
Near the Earth’s equator, solar heating is intense year round. The Sun heats the ocean, evaporating tremendous amounts of water. … As air rises, it cools, and water vapor condenses into rain. This daily cycle of heating, evaporation, and convection creates a persistent band of showers and storms around Earth’s middle.
What causes wet regions within the tropics?
This is because the tropics get more exposure to the sun. Because of all that sun, the tropics don’t experience the kind of seasons the rest of the Earth does. The tropical seasons are broken up into just two: the wet season and the dry season.
What are four factors that create dry climates?
All these climatic, desert-producing factors – descending, drying air currents; mountain-produced rainshadows; distance from oceanic moisture sources; and cold ocean currents – are instrumental, sometimes singly, more often in combination, as primary forces producing arid lands.
What factor causes the alternating wet and dry seasons of a tropical wet and dry savanna climate AW )?
For example, rainfall in the savanna decreases from east to west. They are also the cause of the alternating dry and wet seasons. During summer, onshore winds bring rain and in winter, offshore winds keep the savanna region dry.
What factors explain the locations of Earth’s tropical wet and tropical wet and dry climates?
- Tropical climates are found at or near the equator. Because warm air rises at the equator, there is a lot of rain.
- Tropical wet climates get rain year round. Tropical rainforests grow in this climate zone.
- Tropical wet and dry climates have a rainy season and a dry season. The vegetation is largely grass.
Why are rainforest moist?
Rainforests are wet because the air pressure at the equator is low. Air is sucked in from the oceans which contains moisture.
Why are the tropics warm and moist?
As the sun shines strongly on the tropics — particularly on the warm oceans which have an effectively infinite amount of water to evaporate into the air — the overlying atmosphere becomes very humid. Temperature and pressure both drop quickly with altitude, in the tropics as elsewhere on Earth.
What causes the difference in precipitation between the dry and rainy seasons?
During the dry season, dry air flows out to sea and during the wet season, moist air flows inland from the sea, rises and produces rain.