Mesosphere atmosphere definition. The mesosphere plays a critical role in atmospheric .

Mesosphere atmosphere definition. The atmosphere is composed mainly of nitrogen and oxygen, along with trace amounts of other gases that contribute to the The mesosphere is the third highest layer of Earth's atmosphere, occupying the region above the stratosphere and below the thermosphere. In this thin shell that surrounds our home planet, the atmosphere is in constant motion, shaped by the influence of both solar activity and changes in the lower atmosphere and in near-Earth space. The exosphere (/ ˈɛksoʊsfɪər, ˈɛɡzoʊ -/; [1] from Ancient Greek ἔξω (éxō) 'outer, outside' and - sphere) is a thin The mesosphere extends from the stratopause, which is defined by the temperature maximum near ∼50 km, to the mesopause, which is defined by the temperature minimum near ∼90 km. Looking for online definition of mesosphere in the Medical Dictionary? mesosphere explanation free. Jul 23, 2025 · The atmosphere is a layer of gases that surrounds the Earth. The mesosphere starts at 50 km (31 miles) above Earth's surface and goes up to 85 km (53 miles) high. The base of the mesosphere is defined as the temperature maximum existing at the top of the stratosphere, with the boundary between the two regions usually called the stratopause. Nov 3, 2023 · What is geosphere. Remember, the The mesosphere is defined as the layer of the Earth's atmosphere that lies between 50 and 80 kilometers in altitude, characterized by a decrease in temperature with increasing height. Discover characteristics of the mesosphere, including its temperature, density, and Earth's atmosphere is composed of a series of layers, each with its own specific traits. But what exactly is it, and what are its characteristics and facts that define it? Jul 23, 2023 · Earth atmosphere layers Earth's atmosphere consists of five main layers from lowest to highest: troposphere, stratosphere, mesosphere, thermosphere and exosphere. Despite its crucial role in atmospheric science, the mesosphere remains one of the least understood layers of the atmosphere. n. [1] Diagram showing the five primary layers of the Earth's atmosphere: exosphere, thermosphere, mesosphere, stratosphere, and troposphere. the…. The mesosphere, which lies between the stratosphere and the thermosphere, is an important layer of the Earth's atmosphere. The boundary between the Mesosphere and the Thermosphere is known as the Mesopause. May 21, 2024 · The mesosphere is a layer of the Earth's atmosphere located between the major top and bottom layers. The earth’s atmosphere is a layer of gas that protects the earth from radiation and cosmic radiation. Dec 31, 2024 · Discover the fascinating mesosphere, the third layer of Earth’s atmosphere. The mesosphere is known for being the layer where luminous phenomena called "polar night lights" occur, Based on these factors, the atmosphere can be divided into four distinct layers: the troposphere, stratosphere, mesosphere, and thermosphere. The mesosphere is influenced by waves originating in the lower atmosphere, in particular gravity waves (GW), but also atmospheric tides and planetary waves. Summary The mesosphere has a very low density of gas molecules. The mesosphere is the most poorly understood part of the atmosphere. Both the stratosphere (next layer down) and the mesosphere are considered the middle atmosphere. The mesosphere is crucial for the disintegration of meteoroids, making it an important area for May 3, 2022 · Here is the list of the layers of the atmosphere, their altitudes, temperatures, and other properties. Above that is the thermosphere, where there are few air molecules, a lot of heat from the Sun, and the astronauts orbiting Earth in the International Space Station. It consists of gases such as nitrogen, oxygen, carbon dioxide, argon, etc. It is necessary to understand what the mesosphere is, and the area of its extension. Learn how it interacts with the hydrosphere, atmosphere, and biosphere with pictures. In addition, the mesosphere is the coldest region of the atmosphere, which makes it an Definition The mesosphere is the third layer of Earth's atmosphere, situated above the stratosphere and below the thermosphere, extending from about 50 to 85 kilometers (31 to 53 miles) above sea level. Earth’s atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. They are arranged from lowest to highest depending on the altitude. The thermosphere is located above the mesosphere and below the exosphere. Oct 6, 2023 · The mesosphere extends from just above the stratosphere to 53-62 miles (85-100 km) high. The stratosphere image is dominated by blues and greens, which indicates a cooling over time. The troposphere, the lowest layer, is right below the stratosphere. Temperatures in the upper mesosphere can fall as low as about -100 degrees Celsius (-148 degrees Fahrenheit). Without the atmosphere, on average, temperatures would be well below freezing on Earth's Definition The layer of the Atmosphere between the Stratosphere and the Thermosphere occurring between approximately 50km and 90km above the surface. Oct 1, 2025 · Describes the properties of the mesosphere. Nov 21, 2023 · Learn about the mesosphere: the middle layer of the atmosphere. The mesosphere is the layer of the atmosphere that protects the earth from meteors. The top of the mesosphere is May 12, 2023 · Discover the amazing facts about the mesosphere! Learn why this part of the atmosphere is so important and what makes it unique compared to other layers. The primary layers include troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The mesosphere comes from the Greek word mesos which means middle. The layers are to scale. It is the coldest region of the atmosphere. It extends from about 90 km (56 miles) to between 500 and 1,000 km (311 to 621 Understanding the Earth's Atmosphere The Earth's atmosphere is structured into several distinct layers, each playing a vital part in maintaining the balance of our planet's environment. Sep 25, 2025 · The heat that won’t keep you warmThe thermosphere is a layer of Earth’s atmosphere. The mesosphere is also where most meteors burn up upon The mesosphere is the layer of Earth's atmosphere located above the stratosphere and below the thermosphere. What Happens in the Mesosphere? Feb 3, 2024 · The mesosphere is a layer of the Earth's atmosphere located above the stratosphere and below the thermosphere. What are the Layers of the Atmosphere? The atmosphere is a layer of gases surrounding a planet, held in place by gravity. It plays a crucial role in supporting life, regulating temperature, and participating in the carbon cycle through various processes such as photosynthesis, respiration, and combustion. Diagram showing the five primary layers of the Earth's atmosphere: exosphere, thermosphere, mesosphere, stratosphere, and troposphere. As GW pass upward through progressively thinner air, the The mesosphere (/ ˈmɛsəsfɪər, ˈmɛz -, ˈmiːsə -, - zə -/; [1]from Ancient Greek μέσος (mésos)'middle'and - sphere) is the third layer of the atmosphere, directly above the stratosphere and directly below the thermosphere. the layer of a planet's atmosphere above the stratosphere and below the thermosphere: 2. Definition: the whole mass of air surrounding the earth Example: The atmosphere is the mass of air surrounding the earth. Here are some of the highlights of the thermosphere: It can be further broken up into the following two atmospheric layers: (1) ionosphere and (2) exosphere. Fig 1: Vertical temperature profile of the ICAO Standard Atmosphere Each layer is characterised by a uniform change in temperature with increasing altitude. This characteristic is used to define limits: it begins at the top of the stratosphere Nov 21, 2023 · Explore the atmosphere. Sep 25, 2025 · The mesosphere lies between the thermosphere and the stratosphere. Sep 19, 2025 · Atmosphere, the gas and aerosol envelope that extends from the ocean, land, and ice-covered surface of a planet outward into space. In some layers there is an increase in Description on Mesosphere Earth’s atmosphere is composed of several layers, and the mesosphere is one of them. Define mesosphere. The mesosphere has little impact on weather patterns, pollution transport, and water vapor availability. The atmosphere is the layer of gases that surround Earth. The mesosphere plays a crucial role in The mesosphere is defined as one of the four regions of the atmosphere, characterized by temperature variations with height, situated above the stratosphere and below the thermosphere. AI generated definition based on: Chemistry: With Inorganic Qualitative Analysis, 1980 Jul 2, 2025 · At an 80-90 km altitude menopause separates the mesosphere from the thermosphere. Definition of mesosphere noun in Oxford Advanced American Dictionary. The most well-known layers include the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Why Mesosphere is the coldest layer of the atmosphere? Kids learn about the science of the Earth's Atmosphere. The atmosphere in the mesosphere is composed primarily of nitrogen (N₂) and oxygen (O₂), but at lower densities than in the troposphere or stratosphere. The lower part of the Apr 14, 2023 · Mésosphère : Définition, température et importance. The mesosphere is defined as the region of the atmosphere located between 50 and 90 km in altitude, where temperature decreases with height until the mesopause, the boundary with the thermosphere. Explore its characteristics, composition, functions, and importance in protecting our planet and influencing climate. Temperature The thermosphere is directly above the mesosphere and below the exosphere. Learn the definition of atmosphere and understand what it is made of. In the mesosphere, temperature decreases as altitude increases. Discover the Earth's atmosphere temperature and The atmosphere is a layer of gases that surrounds a planet, held in place by gravity. Feb 12, 2025 · The thermosphere is one of the 5 layers of the atmosphere. What Is the Thermosphere? The thickest layer in the atmosphere is the thermosphere. One of the main components of Earth’s interdependent physical systems is the atmosphere. What are its key facts. The layers of the atmosphere include the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. This layer features the highest clouds on Earth and is characterized by low temperatures, often reaching as low as 90 K during polar summer. The air in the exosphere is extremely thin - in many ways, it is almost the same as the airless void of outer space. Carbon dioxide, Oxygen, Nitrogen and more make up clouds and weather. mesosphere synonyms, mesosphere pronunciation, mesosphere translation, English dictionary definition of mesosphere. There's very little information Discover Earth's atmosphere in a visual way! Learn about atmospheric layers, composition, weather patterns, and take interactive quizzes. The mesosphere is sandwiched between the stratosphere below and May 13, 2024 · The mesosphere is the coldest atmospheric layer, and Ueyama noted that the mesopause, the boundary between the mesosphere and the thermosphere, is the coldest part of the entire atmosphere. The coldest parts of our atmosphere are located in this layer and can reach –90°C. The density of the air is much lower here compared to the layers below, which affects the behavior of any particles or meteorological phenomena. Mesosphere, region of the upper atmosphere between about 50 and 80 km (30 and 50 miles) above the surface of the Earth. Sep 7, 2014 · The temperature in the mesosphere layer decreases with a rate as we go up until it reaches (- 90 degrees Celsius) at its top. Definition and Boundaries of the Mesosphere Definition of mesosphere in the Definitions. It extends from about 50 to 85 km (31 to 53 miles) above our planet. It surrounds our planet, keeps us warm, gives us oxygen to breathe, and it is where our weather happens. In this layer, temperature decreases as altitude increases, reaching extremely cold temperatures. But decreases in temperature in the mesosphere are due to some gas molecules present in the mesosphere that absorb the radiation of the sun hence, Mesosphere is the coldest layer of the atmosphere. Noctilucent clouds are the highest clouds in the atmosphere. Beyond the mesosphere is a region of the atmosphere called the thermosphere that absorbs X-rays and extreme UV from the Sun, causing temperature to rise with altitude. Mesosphere definition: (in the classification of the earth's atmosphere by chemical properties) the region between the ionosphere and the exosphere, extending from about 250–650 miles (400–1050 km) above the surface of the earth. Oct 2, 2019 · Part One sidebar: Earth’s atmosphere has five major and several secondary layers. The International Space Station orbits in the middle of the thermosphere, between 330 and 435 Feb 19, 2024 · NASA’s heliophysics researches the ionosphere-thermosphere-mesosphere region where our neutral atmosphere transitions into the ionized plasma of space. It is sandwiched between the stratosphere below and the thermosphere above. This layer of the atmosphere contains one of the coldest regions in the atmosphere;therefore is the colder region in the atmosphere and the coldest place on earth The exosphere is the uppermost region of Earth's atmosphere as it gradually fades into the vacuum of space. The meaning of MESOSPHERE is the part of the earth's atmosphere between the stratosphere and the thermosphere in which temperature decreases with altitude to the atmosphere's absolute minimum. net dictionary. AI generated definition based on: Encyclopedia of Atmospheric Sciences, 2003 Mesosphere facts for kidsThe very top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere. What does mesosphere mean? Information and translations of mesosphere in the most comprehensive dictionary definitions resource on the web. Mesosphere layer protects the planet Earth from the celestial rocky masses that enter the atmospheric envelope of the Earth The atmosphere is a mixture of gases that surrounds the Earth. Thin clouds comprised of ice crystals, Noctilucent Clouds, sometimes occur at higher latitudes in the higher part of the Mesosphere at Feb 7, 2025 · The mesosphere is one of the 5 layers of the atmosphere. Description The Thermosphere is characterised by rising temperature with height - temperatures rising to 1000°C. In atmospheric science, the 'mesosphere' refers to the layer of the Earth's atmosphere located above the troposphere and below the thermosphere. Mesosphere Above the stratosphere is the mesosphere and it extends to a height of about 85 km (53 miles) from the ground. They are as low as -100° C (-212° F)! Nowhere on Earth’s surface is it that cold. These layers are characterized by differences in temperature, composition, and density. It plays a crucial role in supporting life, regulating temperature, and protecting the surface from harmful solar radiation. May 29, 2018 · The stratosphere and mesosphere together are called the middle atmosphere, and their region also overlaps with the ionosphere , which is a region defined on the basis of the electric charges of the particles there. Temperatures here are colder than anywhere else in the atmosphere. The lowest Definition The mesosphere is the third layer of Earth's atmosphere, situated above the stratosphere and below the thermosphere, extending from about 50 to 85 kilometers (31 to 53 miles) above the Earth's surface. The mesosphere lies above the highest point for flying a plane, but below the lowest point for flying a spaceship. It is characterized by a temperature decrease with increasing altitude, which is the opposite of the temperature profile in the stratosphere. But this region is more than just a passive Oct 19, 2023 · The atmosphere is thin here, but still thick enough so that meteors will burn up as they pass through the mesosphere —creating what we see as “shooting stars. But what exactly is it, and what are its characteristics and facts that define it? Definition The mesosphere is the third layer of Earth's atmosphere, located above the stratosphere and below the thermosphere, extending from about 50 to 85 kilometers above sea level. MESOSPHERE definition: 1. May 16, 2018 · The mesosphere is one of the layers of the atmosphere that´s situated at about 50-85 km (32-53 miles). It is the second layer of the atmosphere as you go upward. The mesosphere is directly above the stratosphere and below the thermosphere. Description The Mesosphere is characterised by falling temperature with height - temperatures fall to -100°C. Here, the temperature grows colder as you rise up through the mesosphere. From the Earth's surface to the top of the stratosphere (50km) is just under 1% of Earth's radius. Which feature of Earth is it part of. The layer above the mesosphere is called the thermosphere. Above the stratosphere is the mesosphere, which includes the coldest part of our atmosphere. The mesosphere layer contains limited quantities of helium and hydrogen gases only, So, It is highly rarefied. Unveil the secrets of meteors, temperature regulation, and more! The vertical structure of the atmosphere The Earth’s atmosphere is most commonly divided into four isothermal layers or ‘spheres’: troposphere, stratosphere, mesosphere and thermosphere. In this layer, temperatures decrease with altitude, reaching the coldest temperatures found in Earth’s atmosphere. It makes life possible by giving us air to breathe, protecting us from harmful UV rays from the Sun, trapping heat to keep the planet Mesosphere Definition The mesosphere is the region of the atmosphere extending from the top of the stratopause (about 50 kilometers high) to the bottom of the mesopause-lower thermosphere boundary (MLT), about 100 kilometers high. Remember, the Educating Facts About Mesosphere for Kids Even though it seems like an infinite sky, Earth's atmosphere comprises five magnificent layers, distinct from each other, namely troposphere, stratosphere, mesosphere, thermosphere, and exosphere. It is the coldest layer of the atmosphere, with the temperature dropping to its lowest at the boundary between the mesosphere and thermosphere, called the mesopause. The atmosphere is made up of different layers, such as the Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere. How to use atmosphere in a sentence. These temperatures can change depending on where you are on Earth and the time of year. This layer is characterized by a decrease in temperature with increasing altitude, where temperatures can drop as low as -90°C (-130°F). See examples of MESOSPHERE used in a sentence. In this article we are going to tell you what the mesosphere is, what is its importance, composition and characteristics. The layers are not to scale. The mesosphere plays a critical role in atmospheric Aug 20, 2024 · The gases in the mesosphere are now thick enough to slow down meteors hurtling into the atmosphere, where they burn up, leaving fiery trails in the night sky. Moving upward from ground level, these layers are called the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Test your knowledge about this atmospheric layer's temperature gradients and characteristics with a quiz. The mesosphere (/ ˈmɛsəsfɪər, ˈmɛz -, ˈmiːsə -, - zə -/; [1] from Ancient Greek μέσος (mésos) 'middle' and - sphere) is the third layer of the atmosphere, directly above the stratosphere and directly below the thermosphere. What does mesosphere mean? The meaning of ATMOSPHERE is the gaseous envelope of a celestial body (such as a planet). Atmosphere of the mesosphere is made up of carbon dioxide oxygen and nitrogen and is low density. UCAR/Randy Russell The thermosphere is a layer of Earth's atmosphere that is directly above the mesosphere and below the exosphere. So, it is called the coldest layer. This characteristic is used to define limits: it begins at the top of the stratosphere The stratosphere is a layer of Earth's atmosphere. Discover Earth's atmosphere layers in a fun, visual way! Perfect for elementary and middle school students with interactive quizzes, engaging examples, and science facts. As you get higher up in the mesosphere, the temperature gets colder. It has five different spheres inside of it including the thermosphere, mesosphere, stratosphere, troposphere, and exosphere. The next higher layer above the stratosphere is the mesosphere. An atmosphere is made of the layers of gases surrounding a planet or other celestial body. This layer is characterized by decreasing temperatures with increasing altitude, where temperatures can drop as low as -90°C (-130°F). Mesopause At the top of the mesosphere is the mesopause. The mesosphere is the third layer of Earth's atmosphere, located above the stratosphere and below the thermosphere, stretching approximately 50 to 85 kilometers (31 to 53 miles) above sea level. ” The upper boundary of the mesosphere is called the mesopause. It extends from the stratopause at an altitude of about 50 km (31 mi) to the mesopause at 80–85 km (50–53 mi) above sea level. Based on these factors, the atmosphere can be divided into four distinct layers: the troposphere, stratosphere, mesosphere, and thermosphere. Know more details like definition, layers of atmosphere, composition, FAQs etc. Characteristics of the Mesosphere The mesosphere presents unique characteristics that distinguish it from other atmospheric layers. The Earth's atmosphere consists of several distinct layers, each with unique characteristics and functions that affect weather patterns, climate, and air quality. The density of the atmosphere decreases outward, because the planet’s gravitational attraction, which pulls the gases and aerosols inward, is greatest close to the surface. It extends from approximately 50 kilometers in altitude to around 85 kilometers. . the region of the atmosphere above the mesosphere and below the height at which the atmosphere ceases to have the properties of a continuous medium. The troposphere is the atmospheric layer closest to the earth's surface. Definition The mesosphere is the third layer of Earth's atmosphere, situated above the stratosphere and below the thermosphere, extending from about 50 km to 85 km above sea level. It helps make life possible by providing us with air to breathe, shielding us from harmful ultraviolet (UV) radiation coming from the Sun, trapping heat to warm the planet, and preventing extreme temperature differences between day and night. The five layers of the atmosphere, in order from the ground up, are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The mesosphere is above the stratosphere layer. The thermosphere is characterized throughout by an increase in temperature with height. In this layer, temperatures decrease with altitude, reaching as low as -90 degrees Celsius (-130 degrees Fahrenheit), and it is where most meteors burn up upon entering the atmosphere. Earth's ionosphere, composed of several regions overlaps with and shares the same space as the thermosphere. Mar 12, 2025 · The mesosphere is the third layer of Earth's atmosphere, located above the stratosphere and below the thermosphere, stretching approximately 50 to 85 kilometers (31 to 53 miles) above sea level. It extends from approximately 50 to 85 kilometers (31 to 53 miles) above the Earth’s surface. The warmest temperatures in the mesosphere are found just above the stratopause, where air temperatures may be as high as The mesosphere is the coldest region of Earth’s atmosphere, close to -100°C. Learn about the mesosphere with our engaging video lesson. La mésosphère est une des 5 couches de l'atmosphère, qui se trouve au-dessus de la stratosphère et en dessous Lapse in Funding: ROSES POCs offline, this blog will not be updated, due dates will change to TBD on NSPIRES The lower stratosphere is centred around 18 kilometres above Earth's surface. The air is very thin in the mesosphere similar to a vacuum. This layer is characterized by a decrease in temperature with altitude, where temperatures can drop as low as -90°C (-130°F), creating a cold environment. This results in a measurable effect - the mesopause should become cooler with increased CO 2. The mesosphere is a layer of Earth's atmosphere. Unlike the troposphere, where greenhouse gases result in the atmosphere heating up, increased CO 2 in the mesosphere acts to cool the atmosphere due to increased radiative emission. Sep 25, 2025 · A jacket for the planetEarth’s atmosphere is similar to a jacket for our planet. These gases are found in atmospheric layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere The mesosphere contributes significantly to atmospheric processes and planetary protection while remaining one of the least explored layers of our atmosphere. AI generated definition based on: Encyclopedia of Sep 25, 2025 · The mesosphere lies between the thermosphere and the stratosphere. Definition The highest layer of the Atmosphere above the Mesosphere extending from approximately 90km above the surface to 10,000km where it gradually merges into Space. Although the mesosphere is less talked about compared to other atmospheric layers, it plays a critical role in protecting life on Earth by shielding the planet from meteorites. Earth’s atmosphere has six layers: the troposphere, the stratosphere, the mesosphere, the thermosphere, the ionosphere, and the exosphere. The mesosphere is the third layer of Earth's atmosphere, located above the stratosphere and below the thermosphere. What is mesosphere? Meaning of mesosphere medical term. There are 4 primary layers of the atmosphere on Earth: troposphere, stratosphere, mesosphere and thermosphere. From lowest to highest, the major layers are the troposphere, stratosphere, mesosphere, thermosphere and exosphere. It’s the layer of the atmosphere where meteors burn up into small fragments of dust. The term 'mesosphere' emphasizes its position as the middle layer of the Earth's atmosphere when considering its vertical stratification. The mesosphere, which means middle sphere, is the third layer of Earth's atmosphere, between the stratosphere, and the thermosphere. Mar 21, 2025 · What is the definition of Atmosphere? The Earth's atmosphere is divided into five layers and several secondary levels. The thermosphere is located above the mesopause and reaches out to around 600 kilometers (372 miles). The ionosphere and exosphere are above those. Nothing is known about this layer except that meteoroids burn up here, preventing them from reaching the Earth’s surface. Learn more. MESOSPHERE meaning: 1. Jun 5, 2025 · Introduction to the Mesosphere The mesosphere is a layer of the Earth's atmosphere extending from about 50 to 85 kilometers above the Earth's surface. “Meso” means middle, and this is the highest layer of the atmosphere in which the gases are all mixed up rather than being layered by their mass. It starts at about 80 km upwards to about 550 km altitude. [34] Definition The mesosphere is the third layer of Earth’s atmosphere, situated above the stratosphere and below the thermosphere. This layer is characterized by decreasing temperatures with altitude, where temperatures can drop as low as -90°C. The mesosphere (/ ˈmɛsəsfɪər, ˈmɛz -, ˈmiːsə -, - zə -/; [1] from Ancient Greek μέσος (mésos) 'middle' and - sphere) is the third layer of the atmosphere, directly above the stratosphere and directly below the thermosphere. The portion of the atmosphere from about 50 to 80 kilometers above the surface of the earth, characterized by temperatures that decrease from 10°C to This page explains the vertical structure of Earth's atmosphere, detailing how pressure, density, and temperature vary with altitude across different layers: troposphere, stratosphere, mesosphere, … The thermosphere starts just above the mesosphere and extends to 1,848,000 ft (350 mi) The transition boundary between the thermosphere and the layer above is called the thermopopause Exosphere: The exosphere is the outermost layer of the atmosphere The exosphere is the outermost layer of the atmosphere Vertical Structure of the Atmosphere Jul 27, 2024 · The mesosphere is the third layer of the Earth’s atmosphere, located above the stratosphere and below the thermosphere. Meaning of mesosphere. fxkx0m4k 8jpj emjqhn wo iq jkq szpgzoj 59xuxy ymuf axq