Test Your Knowledge - and learn some interesting things along the way. It contains 75% of the atmosphere's mass and 99% of the total mass of water vapour and aerosols. : the lowest densest part of the earth's atmosphere in which most weather changes occur and temperature generally decreases rapidly with altitude and which extends from the earth's surface to the bottom of the stratosphere at about 7 miles (11 kilometers) high. the envelope of gases that surround a planet and are held to it by the planet's gravitational attraction, O₃; An almost colorless gaseous form of oxygen; the highest concentration is found in the stratosphere where it absorbs harmful UV radiation, atmospheric pressure; the pressure exerted by the mass of air above a given point, usually expressed in millibars (mb), millimeters of mercury (mmHg), or in hectopascals (hPa), layer of the atmosphere extending from the earth's surface up to about 10 km above the earth's surface. See more. Learn a new word every day. It is deeper in the tropics, up to , and shallower near the polar regions, approximately in winter. The average depth of the troposphere is approximately in the middle latitudes. Learn more in the Cambridge French-English Dictionary. It contains approximately 75% of the atmosphere's mass and 99% of its water vapour and aerosols. Other Words from troposphere Example Sentences Learn More about troposphere. Relevant vocabulary for the AP Environmental Science test. The Earth's atmosphere has layers, like stacking 5 different flavored scoops of ice cream on top of each other. Depending on the altitude, time of year, and vertical temperature structure of the troposphere, these clouds may be composed of liquid water droplets, ice crystals, or a combination of the two, including supercooled How do you cure for a cold permanently? Which word describes a musical performance marked by the absence of instrumental accompaniment. It extends up to a height of 10 to 50 km. AP Environmental Science Chapter 4- The Atmosphere Yes, but you know, he's going to be back at it hopefully in August but just as a meteorologist, it's just fascinating to me to think about flying through the stratosphere, let alone the troposphere , which is where I was. The average depths of the troposphere are 20 km (12 mi) in the tropics, 17 km (11 mi) in the mid-latitudes, and 7 km (4.3 mi) in the polar ⦠As it starts from the surface of the earth and extends to a height ranging between 6 km to 20 km, and this layer is known as the lower layer of the atmosphere as well, and many processes occur in it as it contains many important elements of human life and living organisms. This layer contains most of Earthâs clouds and is the location where weather primarily occurs. What made you want to look up troposphere? Learn more. The bases of clouds in the middle level of the troposphere, given the prefix âalto,â appear between 6,500 and 20,000 feet. Britannica.com: Encyclopedia article about troposphere. In the thermosphere temperatures increase steadily with altitude, reaching as high as 1,727°C (3,140°F) at the highest elevations. troposphere the lowest region of the Earth's atmosphere, from the Earth's surface to 10 km in altitude. Atmosphere Definition . Atmosphere refers to the gases surrounding a star or planetary body held in place by gravity. The paper was not subsequently published but is briefly summarized by C. Kassner in "Bericht über die elfte allgemeine Versammlung und Feier des 25-jährigen Bestehens der Deutschen Meteorologischen Gesellschaft zu Hamburg am 28. bis 30. The troposphere refers to the layer of atmosphere closest to the Earthâs surface. Definition of troposphere. troposphère translate: troposphere. It looks like your browser needs an update. Troposphere definition, the lowest layer of the atmosphere, 6 miles (10 km) high in some areas and as much as 12 miles (20 km) high in others, within which there is a steady drop in temperature with increasing altitude and within which nearly all cloud formations occur and weather conditions manifest themselves. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'troposphere.' La troposphère est la couche inférieure de l'atmosphère. Please tell us where you read or heard it (including the quote, if possible). The troposphere is the lowest portion of Earthâs atmosphere and is also where nearly all weather takes place. Elle est présente sur des planètes comme la Terre, Mars ou Vénus. The troposphere is the lowest layer of atmosphere of the Earth and the layers to which changes can greatly influence the floral and faunal environments. From the earthâs surface. ... (definition) the layer of the atmosphere that is above the troposphere and contains ozone. 'Nip it in the butt' or 'Nip it in the bud'? In 2004, scientists at the University of Washington published evidence that Christy and Spencer’s readings of what was purported to be the lower atmosphere — the, This layer of air, the lowest region of the, World View plans to use a balloon to take tourists to what part of Earth's atmosphere: the stratosphere, the mesosphere, or the, Each spring, parcels of stratospheric air gently fell down into the, As long as the smoke continues to drift in the cooler temperatures of the upper, Post the Definition of troposphere to Facebook, Share the Definition of troposphere on Twitter. 2 : a very high or the highest region on or as if on a graded scale construction costs in the stratosphere the celebrity stratosphere. All of the earth's weather occurs in this layer, and air density is highest, layer of the atmosphere above the troposphere and below the mesosphere; contains the ozone layer, region of the stratosphere that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun, atmospheric layer above the stratosphere and below the thermosphere, the meteorological conditions (temperature, wind, clouds and precipitation) at any given time and place, the weather in some location averaged over some long period of time, a severe tropical cyclone usually with heavy rains and winds moving a 73-136 knots, a localized and violently destructive windstorm occurring over land characterized by a funnel-shaped cloud extending toward the ground, a large body of air that has similar horizontal temperature and moisture characteristics, the boundary between two different air masses, periodic large scale warming of surface waters in the tropical eastern Pacific ocean that temporarily alters both ocean and atmospheric circulation, global air circulation patterns caused by differential heating of the earth's surface and deflection of air by the Coriolis effect; responsible for major climactic zones that converge around lines of latitude; from equator to poles: Hadley, Ferrel, Polar, The apparent curving of the path of an moving object moving through the air from an otherwise straight path due to the earth's rotation; objects are deflected clockwise in the Northern hemisphere and counter-clockwise in the Southern hemisphere. What is the Troposphere? Tropospheric ozone (O 3) is a secondary pollutant that results from photochemical reactions of NO x and VOCs involving generally well-understood reactions (Jenkins and Clemitshaw, 2000).Increases in ambient concentration come from primary anthropogenic pollutant precursor emissions, forest fires, and ⦠4.3.3 Ozone. 1 : the part of the earth's atmosphere which extends from the top of the troposphere to about 30 miles (50 kilometers) above the surface and in which temperature increases gradually to about 32° F (0° C) and clouds rarely form. Hydrogen is a gas and first element on periodic table? troposphere layer of the atmosphere extending from the earth's surface up to about 10 km above the earth's surface. Troposphere definition and meaning? Description. Poor air conditions since the 13th century, when they used to burn mass amounts of coal. The troposphere is the lowest layer of the Earth's atmosphere; it is located right above the planetary boundary layer, and is the layer in which most weather phenomena take place. What is fog definition,types and causes? Definition the crust and upper mantle of the earthâs soil. The lowest region of the atmosphere between the earth's surface and the tropopause, characterized by decreasing temperature with increasing altitude. The troposphere is the layer that we live in. The troposphere is the atmospheric layer closest to the earth's surface. The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place. the troposphere meaning: 1. the layer of gases surrounding the earth from the surface up to a height of about ten kilometresâ¦. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! The troposphere is where all of Earth's weather occurs. tropospheric propogation: Radio waves can propagate over the horizon when the lower atmosphere of the earth bends, scatters, and/or reflects the electromagnetic fields. The troposphere is characterized by decreasing temperature with height (at an average rate of 3.5 degrees F per thousand feet, or 6.5 degrees C per kilometer). Coronavirus latest update and information? The lower levels of the troposphere are usually strongly influenced by Earthâs surface. Send us feedback. Delivered to your inbox! The troposphere starts at ground level and extends about 12 km upwards.⦠A body is more likely to retain an atmosphere over time if gravity is high and the temperature of the atmosphere is low. ... London's Air Pollution: Definition. Oh no! The Troposphere is the lowermost portion of Earth's atmosphere. It contains nonrenewable fossil fuels, minerals, and soil, and renewable soil chemicals needed for plant life. What is cement and an example of how cement is made? Define troposphere. What is the function of adrenaline? Troposphere (definition) the layer closest to Earth, where almost all weather occurs; the thinnest layer. The density of the atmosphere decreases outward, because the planetâs gravitational attraction, which pulls the gases and aerosols inward, is greatest close to the surface. Formalin definition,information and uses? Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Accessed 8 Dec. 2020. The troposphere is between 5 and 9 miles (8 and 14 kilometers) thick depending on where you are on Earth. Can you spell these 10 commonly misspelled words? It contains approximately 80% of the total mass of the atmosphere. These effects are collectively known as tropospheric propagation, or tropo for short. The region of the Earth's upper atmosphere lying above the mesosphere and extending from a height of approximately 80 km (50 mi) to between 550 and 700 km (341 and 434 mi) above the Earth's surface. The troposphere is the lowest portion of Earth's atmosphere. It contains approximately 75% of the atmosphereâs mass and 99% of the total mass of water vapor and aerosols. Ozone (O 3) is a reactive gas that exists in two layers of the atmosphere: the stratosphere (upper layer) and the troposphere (at ground level and up to 15km). APES Chapter 17 and 18 Study Guide. The average height of the troposphere is 18 km (11 mi; 59,000 ft) in the tropics, 17 km (11 mi; 56,000 ft) in the middle latitudes, and 6 km (3.7 mi; 20,000 ft) in the polar regions in winter. Height. 3O2+UV rays <--> 2O3. Troposphere definition: the lowest atmospheric layer, about 18 kilometres (11 miles) thick at the equator to... | Meaning, pronunciation, translations and examples All of the earth's weather occurs in this layer, and air density is highest The average height is ⦠'All Intensive Purposes' or 'All Intents and Purposes'? Itâs thinnest at the North and South Pole. borrowed from French troposphère, from tropo- tropo- (in sense "change," as the troposphere is where weather changes take place) + -sphère -sphere. Atmosphere - Atmosphere - Troposphere: The lowest portion of the atmosphere is the troposphere, a layer where temperature generally decreases with height. K.E. Formula for Ozone creation. More recently they were one of the first countries to experience the industrial revolution and the amounts of pollution that it takes. In the stratosphere, ozone protects life on Earth from the sunâs ultraviolet radiation. September 1908," Meteorologische Zeitschrift, Band 26, Heft 1 (Januar, 1909), p. 6. This layer has the air we breathe and the clouds in the sky. The troposphere contains the boundary layer , and ranges in height from an average of 9 km (5.6 mi; 30,000 ft) at the poles, to 17 km (11 mi; 56,000 ft) at the Equator . Note: Atmosphere, the gas and aerosol envelope that extends from the ocean, land, and ice-covered surface of a planet outward into space. The stratosphere is the second layer of our atmosphere, above the troposphere.. The air is densest in this lowest layer. The total average height of the troposphere is 13 km (8.1 mi; 43,000 ft). Percy, ... T. Dann, in Developments in Environmental Science, 2012. The term was introduced, along with stratosphère stratosphere, by the French meteorologist Léon Tesserenc de Bort (1855-1913). Tesserenc de Bort apparently first used them in a paper read to a German meteorological society in Hamburg on September 30, 1908 ("La division de l'atmosphère en troposphère et stratosphère d'après les résultats de l'exploration de la haute atmosphère"). WHAT IS Tropospheric Ozone? The troposphere extends from the surface of the Earth to a height of approximately 30,000 ft at the Polar Regions to approximately 56,000 ft at the equator, with some variation due to weather. troposphere synonyms, troposphere pronunciation, troposphere translation, English dictionary definition of troposphere. “Troposphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/troposphere. To ensure the best experience, please update your browser. In fact, the troposphere contains three-quarters of the mass of the entire atmosphere. Things along the way fossil fuels, minerals, and air density is highest definition troposphere. 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