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Encyclopedia > Western hemisphere
The geographical western hemisphere of Earth, highlighted in yellow.
The geographical western hemisphere of Earth, highlighted in yellow.
Western hemisphere
Western hemisphere

The western hemisphere, also Western Hemisphere,[1] is a geographical term for the half of the Earth that lies west of the Prime Meridian (which crosses Greenwich, England), the other half being the eastern hemisphere.[1] Less properly, it can refer to the Americas (or the New World) and adjacent waters, while excluding other territories that lie geographically in the hemisphere (parts of Africa, Europe, Antarctica, and Asia). Western hemisphere is sometimes used as an equivalent for the geopolitical construct, the Western World, which typically includes the Americas and Western/Central Europe. Image File history File links Download high-resolution version (1000x453, 46 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Western Hemisphere ... Image File history File links Download high-resolution version (1000x453, 46 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Western Hemisphere ... Image File history File links Download high resolution version (800x800, 49 KB) Summary Description: Western Hemisphere of Earth (Lambert Azimuthal projection) Source: Self-made. ... Image File history File links Download high resolution version (800x800, 49 KB) Summary Description: Western Hemisphere of Earth (Lambert Azimuthal projection) Source: Self-made. ... Map of the Earth Geography (from the Greek words Geo (γη) or Gaea (γαια), both meaning Earth, and graphein (γραφειν) meaning to describe or to writeor to map) is the study of the earth and its features, inhabitants, and phenomena. ... This article is about Earth as a planet. ... A compass rose with west highlighted This article refers to the cardinal direction; for other uses see West (disambiguation). ... Location of the Prime Meridian Prime Meridian in Greenwich The Prime Meridian, also known as the International Meridian or Greenwich Meridian, is the meridian (line of longitude) passing through the Royal Greenwich Observatory, Greenwich, England — it is the meridian at which longitude is 0 degrees. ... The eastern hemisphere of Earth, highlighted in yellow. ... World map showing the Americas CIA political map of the Americas The Americas are the lands of the Western hemisphere or New World consisting of the continents of North America[1] and South America with their associated islands and regions. ... Frontispiece of Peter Martyr dAnghieras De orbe novo (On the New World). Carte dAmérique, Guillaume Delisle, 1722. ... A world map showing the continent of Africa Africa is the worlds second-largest and second most-populous continent, after Asia. ... World map showing the location of Europe. ... World map showing the location of Asia. ... Geopolitics is the study which analyses geography, history and social science with reference to international politics. ... The term Western world, the West or the Occident (Latin occidens -sunset, -west, as distinct from the Orient) [1] can have multiple meanings dependent on its context (e. ...


A hemisphere is a geometric term that literally means "half of a sphere", and in geography the term is used when dividing the Earth into two halves. The most obvious dividing line is the equator, creating the northern and southern hemispheres. These hemispheres are based on unambiguous reference points — the north and south poles — which are defined by the Earth's axis of rotation and, in turn, define the equator. Any definition of eastern and western hemispheres, however, requires the sextion of an arbitrary meridian and a corresponding meridian on the other side of the Earth. The Prime Meridian at 0° longitude is typically used, which runs through Greenwich (London) in the United Kingdom; this is used to define the International Date Line (or End Meridian) on the other side of the Earth at 180° longitude. In its proper geographic sense, the western hemisphere includes not only the Americas, but the western portions of Europe and Africa, the easternmost tip of Russia, numerous territories in Oceania, and a portion of Antarctica while excluding some of the Aleutian Islands to the southwest of the Alaskan mainland. Geometry (from the Greek words Ge = earth and metro = measure) is the branch of mathematics first introduced by Theaetetus dealing with spatial relationships. ... This article is about Earth as a planet. ... World map showing the equator in red In tourist areas, the equator is often marked on the sides of roads The equator marked as it crosses Ilhéu das Rolas, in São Tomé and Príncipe. ... The Northern Hemisphere is the half of a planets surface (or celestial sphere) that is north of the equator (the word hemisphere literally means half ball). On the Earth, the Northern Hemisphere contains most of the land and about 90% of the human population. ... southern hemisphere highlighted in yellow (Antarctica not depicted). ... For other uses, see North Pole (disambiguation). ... For other uses, see South Pole (disambiguation). ... On the earth, a meridian is a north-south line between the North Pole and the South Pole. ... Location of the Prime Meridian Prime Meridian in Greenwich The Prime Meridian, also known as the International Meridian or Greenwich Meridian, is the meridian (line of longitude) passing through the Royal Greenwich Observatory, Greenwich, England — it is the meridian at which longitude is 0 degrees. ... Longitude is the east-west geographic coordinate measurement most commonly utilized in cartography and global navigation. ... Greenwich is a town, now part of the south-eastern urban sprawl of London, England, on the south bank of the River Thames in the London Borough of Greenwich. ... This article is about the capital of England and the United Kingdom. ... The International Date Line around 180° This article is about the line dividing time zones; see Dateline (disambiguation) for other meanings, including the television program. ... The International Date Line zigzags around the 180th Meridian. ... World map showing the location of Europe. ... A world map showing the continent of Africa Africa is the worlds second-largest and second most-populous continent, after Asia. ... World map exhibiting a common interpretation of Oceania; other interpretations may vary. ... Aleutians seen from space The Aleutian Islands (possibly from Chukchi aliat, island) are a chain of more than 300 small volcanic islands forming an island arc in the Northern Pacific Ocean, occupying an area of 6,821 sq mi (17,666 km²) and extending about 1,200 mi (1,900... Official language(s) English[1] Spoken language(s) English 85. ...


Sources

  1. ^ Merriam Webster's Online Dictionary (based on Collegiate vol., 11th edition)

  Results from FactBites:
 
Western Hemisphere - Wikipedia, the free encyclopedia (366 words)
Western Hemisphere (capitalised), or Western hemisphere, is a geopolitical term for the Americas and associated islands and waters (or the New World).
It is derived from the geographical term of western hemisphere, which is the half of the Earth that lies west of the Prime Meridian.
In this context, the western hemisphere includes the western portions of Europe and Africa, easternmost tip of Russia, numerous territories in Oceania, and a portion of Antarctica while excluding some of the Aleutian Islands to the southwest of the Alaskan mainland.
Western Hemisphere Warm Pool - Wikipedia, the free encyclopedia (366 words)
The Western Hemisphere Warm Pool (WHWP) is a region of sea surface temperatures (SST) warmer than 28.5°C that develops west of Central America in the spring, then expands to the tropical waters to the east.
During normal Northern Hemisphere winter, warmth over the Amazon drives a Hadley cell with associated descending air driving a strong anticyclone north of 20°N in the subtropical North Atlantic and northeast trade winds.
A Further Study of the Tropical Western Hemisphere Warm Pool.
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