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The trade winds (also called trades) are the prevailing pattern of easterly surface winds found in the tropics near the Earth's equator, [4] equatorward of the subtropical ridge. These winds blow predominantly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere. [5]
El Niño and La Niña affect the global climate and disrupt normal weather patterns, which as a result can lead to intense storms in some places and droughts in others. [6] [7] El Niño events cause short-term (approximately 1 year in length) spikes in global average surface temperature while La Niña events cause short term surface cooling. [8]
The thermal wind is the difference in the geostrophic wind between two levels in the atmosphere. It exists only in an atmosphere with horizontal temperature gradients. [5] The ageostrophic wind component is the difference between actual and geostrophic wind, which is responsible for air "filling up" cyclones over time. [6]
Historical climatology is the study of historical changes in climate and their effect on civilization from the emergence of homininis to the present day. It is concerned with the reconstruction of weather and climate and their effect on historical societies, including a culturally influenced history of science and perception. [1]
Historical climatology is the study of historical changes in climate and their effect on human history and development. The primary sources include written records such as sagas , chronicles , maps and local history literature as well as pictorial representations such as paintings , drawings and even rock art .
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 December 2024. Long-term weather pattern of a region For other uses, see Climate (disambiguation). Atmospheric sciences Atmospheric physics Atmospheric dynamics category Atmospheric chemistry category Meteorology Weather category portal Tropical cyclone category Climatology Climate category Climate ...
La Niña is a natural climate pattern marked by cooler-than-average seawater in the central and eastern Pacific Ocean. When the water cools at least 0.9 degree Fahrenheit below average for three ...
The winds that flow to the west (from the east, easterly wind) at the ground level in the Hadley cell are called the trade winds. Though the Hadley cell is described as located at the equator, it shifts northerly (to higher latitudes) in June and July and southerly (toward lower latitudes) in December and January, as a result of the Sun's ...