PPT-TROPOSPHERE

The troposphere is the lowest layer of Earths atmosphere The troposphere starts at Earths surface and goes up to a height of 7 to 20 km 4 to 12 miles or 23000 to 65000 feet above sea level Most of the mass about 7580 of the atmosphere is in the troposphere Almost all weather occurs within this layer Air is warmest at the bottom of the troposphere near ground level Higher up it gets colder Air pressure and the density of the air are also less at high altitudes Nearly all of the water vapor and dust particles in the atmosphere are in the troposphere That is why most clouds are found in this lowest layer too The troposphere is heated from below The warm air heated by the sun tends to rise That keeps the air in the troposphere stirred up The top of the troposphere is quite cold Air also gets thinner as you go higher up . 1 Chemical Atmospheric Composition (in percent)VENUS EARTH MARS 0.13 0.007 0.93 1.6 0.1-0.5 2 0.03 Chemistry of the Natural Atmosphere, P. Warneck, chap 12, 1987 2 Due to abundance of O2, Earth Lesson Objectives. Describe how the temperature of the atmosphere changes with altitude.. Outline the properties of the troposphere.. Explain the role of the ozone layer in the stratosphere.. Describe conditions in the mesosphere.. The ocean/layer of gas that surrounds the Earth. It is composed of 78% Nitrogen and 21% Oxygen. The other 1 % is a mixture of other gasses. We depend on this balance of gas for our survival. When it is out of balance, we have problems.. The most important among these gases are therefore water vapourand carbon dioxide. The basic principles of the water cycle are well known: Evaporation of liquid water at the surface, condensation, clo and the Impact on Living Things. Earth’s Atmosphere. The gases that surround Earth (and other planets) make up the atmosphere. These gases are like an envelope that protects us from the radiation that is caused by the sun’s . Acknowledgement. G. . . Ancellet. , O. R. . Cooper, J. . Cuesta, G. . Dufour. , F. . Ebojie. , G. Huang, S. S. . Kulawik. , B. Latter, T. Leblanc, J. Liu, X. Liu, J. . Neu. , H. . Petetin. , I. . Petropavlovskikh. MESOSPHERE. THERMOSPHERE. STRATOSPHERE. TROPOSPHERE. 12 km. I am the layer of the atmosphere second closest to the ground. MESOSPHERE. THERMOSPHERE. TROPOSPHERE. STRATOSPHERE. 12 km. 50 km. I am the layer of the atmosphere third closest to the ground. atm. means smoke or vapor. The Atmosphere. Here are the layers of the atmosphere. The Atmosphere covers the whole earth!. Exosphere. – . (exo) meaning outer or beyond, so this is the outermost layer of our . By. : Rolando . and Jeffrey. The troposphere is the closest and smallest layer of the earth`s atmosphere.. It`s the layer that contains all the weather and living beings.. Temperture: 15 degrees celcius to -57 degrees celcius.. A layer of the atmosphere that is closest to the Earth’s surface. Almost all weather occurs here. Temperature decreases as altitude increases. STRATOSPHERE. Layer above the troposphere. Extends from 18-50 km. a GEOS-Chem perspective. Johan Schmidt. Harvard University. CONTRAST/ATTREX/CAST STM (October 22. nd. ). Thanks to: D. Jacob, R. Volkamer, Q. Liang, C. Keller, M. Evans, . T. Sherwen, E. Apel, R. Salawitch, and others. 2. observations and the role of the upper troposphere. Rachel Silvern. Atmospheric Chemistry Modeling Group, Harvard University. TEMPO Science Team Meeting. June 7, 2018. Previous work showed 60% reduction of . sources, distributions, impacts, and trends. Lecture at the ERCA . 2018. Grenoble, . January 19, 2018. Andreas Richter. Institute of Environmental Physics. University of Bremen. Bremen, Germany. ( . richter@iup.physik.uni-bremen.de. Use NOAA Unique Combined Atmospheric Processing System (NUCAPS) Satellite Soundings to observe the tropical cyclone (TC) diurnal cycle. infrared (IR) and microwave (MW) soundings. Three case studies: Hurricanes Dorian (2019), Florence (2018), Irma (2017).