can someone compare and contrast a mesosphere and a troposphere?
912492
Troposhere is closest to the Earth, and contains weather, and mesosphere is the coldest layer out of all four layers
159895
this web site has studied the difference between the horizon moon and zenith moon appearances in detail\n\nhttp://facstaff.uww.edu/mccreadd/intro9.htm
855359
Try the following links\n\n1. comp and temp: http://en.wikipedia.org/wiki/Earth%27s_atmosphere\n\n2. ozone layer: http://en.wikipedia.org/wiki/Ozone_layer\n\n3. ionosphere: http://en.wikipedia.org/wiki/Ionosphere
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there is an optical effect like this ( it is just a refraction at an interface - like water and air ) and sorry i can't remember either ( i will search tho )\n\ncool i searched the term ATMOSPHERIC REFRACTION and guess what LOL( go to Wikipedia )
488119
depends on how big it is when it enters the atmosphere
132804
i would say it depends where in the sky. I'm sure it's different over a polluted city and somewhere between, say, Mars and Saturn.\nsorry if it doesn't answer ur question
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What i guess you should be looking for will be atmospheric sciences or u could scratch it down to atmospheric physics. There are thousands of articles and publications on the latter. Check your local public library or bookstore.
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True but...\n\nIn the Troposphere it is usually decreasing to about 40,000ft (in the mid latitudes), then in the tropopause it is generally stable, then above that I think it goes back up slightly as you get closer to space, then it gets very cold.  \n\nThe Troposhphere, Tropopause, Stratsosphere, etc are layers of air that have similar charistics.  I do not know them all but thats a littl more infor for you.
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When you say sky you must mean atmosphere. It divides into:\n\ntroposphere: The troposphere is the lowest layer of the atmosphere starting at the surface going up to between 7 km at the poles and 17 km at the equator with some variation due to weather factors.\n\nstratosphere: from that 7–17 km range to about 50 km, temperature increasing with height. \n\nmesosphere: from about 50 km to the range of 80 km to 85 km, temperature decreasing with height. \n\nthermosphere: from 80–85 km to 640+ km\n\nexosphere: from 640 to 900 km - space.\n\nSo you can say the sky is am least 640 and at most 900 high.
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Temperature decreases w/ height as you move up through the troposphere b/c of a decrease in air pressure.\n\nAir pressure steadily declines as you move up b/c there is less gravity. Since gravity acts on everything that has mass, including air, it holds most of the earth's air close to the ground. Air acts as an insulator or blanket, absorbing long wave radiation reradiated from the earth. When you move upward away from the surface, the air thins out. There is less air to hold heat.\n\nHowever, once you leave the troposphere, you enter the stratosphere. Here the temps steadily increase due to the presence of the ozone layer. The ozone traps heat.\n\nAs you move away from the stratosphere you will enter the mesosphere where temps decrease again due to less air & movement away from the ozone layer.\n\nAs you go even higher & enter the Thermosphere, the temps increase again b/c solar radiation is so intense that the few air particles that are present are super heated. The chances of being burned are slight to none b/c the air particles are few & far between. After all that is what is holding the actual heat.
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None!\n\nAtmosphere is made up of Nitrogen (78%), Oxygen (21%),Argon (0.9%) and other gasses e.g Carbon dioxide, Methane, Rare (inert) gases (0.1%)
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troposphere: From the Greek word "tropos" meaning to turn or mix. The troposphere is the lowest layer of the atmosphere starting at the surface going up to between 7 km at the poles and 17 km at the equator with some variation due to weather factors. The troposphere has a great deal of vertical mixing due to solar heating at the surface. This heating warms air masses, which then rise to release latent heat as sensible heat that further buoys the air mass. This process continues until all water vapor is removed. In the troposphere, on average, temperature decreases with height due to expansive cooling. \n\nstratosphere: from that 7–17 km range to about 50 km, temperature increasing with height. \n\nmesosphere: from about 50 km to the range of 80 km to 85 km, temperature decreasing with height. \n\nthermosphere: from 80–85 km to 640+ km, temperature increasing with height. \n\nThe boundaries between these regions are named the tropopause, stratopause, and mesopause.\n\nAtmospheric regions are also named in other ways:\n\nionosphere – the region containing ions: approximately the mesosphere and thermosphere up to 550 km. \n\nexosphere – above the ionosphere, where the atmosphere thins out into space. This is the last major atmosphere. (“Exo” means “outside” in Greek.) \n\nmagnetosphere – the region where the Earth's magnetic field interacts with the solar wind from the Sun. It extends for tens of thousands of kilometers, with a long tail away from the Sun. \n\nozone layer – or ozonosphere, approximately 10 - 50 km, where stratospheric ozone is found. Note that even within this region, ozone is a minor constituent by volume. \n\nupper atmosphere – the region of the atmosphere above the mesopause. \n\nVan Allen radiation belts – regions where particles from the Sun become concentrated.
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reflection of the sky
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"compare"\n\nDewpoint and barometric pressure have no direct relationship.
106539
In the stratosphere, or simply put the sky.
71027
first of all, to Paranoid Princess:\n\nwhoa, whoa WHOA.  just a minute.  the sky is not blue because there's liquid oxygen in the upper atmosphere.  that's just retarded and you shouldn't go presenting bizzare mis-truths as fact when they *aren't* fact.\n\nhere is a profile of temperatures at various altitudes:\nhttp://www.windows.ucar.edu/tour/link=/earth/images/profile_jpg_image.html\nas you can clearly see the lowest temperature is about -100C.  oxygen liquefies at -182C at normal pressures (reference: http://www.ucc.ie/ucc/depts/chem/dolchem/html/elem/elem008.html ), and even lower temperatures at the low pressures in the upper atmosphere.  PLEASE don't present some bizarre fiction as truth to someone who isn't well-informed enough to know that you're simply fabricating nonsense from thin air.  if you have simply been misled by someone else, at least try to do a marginal amount of research before answering a question on something you don't know much about.\n\nthat said, to the original asker:\n\nthe sky is blue because of a phenomenon called "rayleigh scattering", which occurs because the molecules of air (mostly N2 and O2) happen to be the right size to scatter blue light in all directions.  some of this blue light reaches your eye after being re-scattered again by a second molecule, sometimes all the way across the sky.  \n\nthis is also why the sky turns red at sunset - at low angles, the sunlight has to travel a longer distance through the atmosphere, and by the time it reaches your eye, a lot of the blue light has already been scattered away, leaving yellow orange and red.  (i have yet to hear any explanation of why the sky doesn't turn green between daytime and sunset, though.  still tryin' to figure that one out.)\n\nanyway here are some home/school experiments designed to illustrate rayleigh scattering:\nhttp://www.physics.brown.edu/physics/demopages/Demo/optics/demo/6f4010.htm\nhttp://www.chaosscience.org.uk/dem/public_html/article.php?story=20050222224622239\nhttp://teachers.web.cern.ch/teachers/archiv/HST2002/smallexp/krug/Rayleigh.htm\nhttp://bulldog2.redlands.edu/facultyfolder/deweerd/research/scattering-AJP.pdf\nhttp://www.ktca.org/newtons/9/sky.html\n\nalso, a nice page illustrating rayleigh scattering:\nhttp://hyperphysics.phy-astr.gsu.edu/hbase/atmos/blusky.html\nand a slightly more advanced version:\nhttp://world.std.com/~mmcirvin/bluesky.html
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Weather.com is a really good site(I use it too)\n\nWeather is an all-encompassing term used to describe all of the many and varied phenomena that can occur in the atmosphere of a planet. The term is normally taken to mean the activity of these phenomena over short periods of time, usually no more than a few days in length. Average atmospheric conditions over significantly longer periods are known as climate. Usage of the two terms often overlaps and the concepts are obviously very closely related.\n\nWeather is driven by the different amounts of energy received from the Sun on different parts of the planet. Because of a planet's curvature, sunlight is incident at different angles at different latitudes (higher latitude -> lower angle of incidence -> less heating). Different types of surface (e.g. ocean, forest, ice) have different properties of reflectivity (albedo) and absorb differing amounts of energy. It is mainly due to these two factors that the surface is heated to different extents.\n\nThese surface temperature differences cause vertical wind currents as the hot surface heats the air directly above it. This hot air expands and rises lowering the air pressure and drawing colder air into its place, which is in turn heated and rises and so on. When the hot air later cools it shrinks and sinks lower, increasing air pressure and displacing the air already below it. Horizontal wind currents are formed at the boundaries between differentially heated areas and can be exacerbated by the presence of sloped surfaces. The simple systems thus formed can then display emergent behaviour to produce more complex systems and thus all other weather phenomena. A large scale example of this process can be seen in the Hadley cell and other forms of atmospheric circulation, a smaller scale example would be coastal breezes.\n\nThe only two fundamental causes of weather are thus surface temperature, and to a lesser extent, elevation.\n\nAny precession in a planet's orbit will affect the amount of energy received at a particular spot throughout the year. This effect causes seasons and may influence long term weather patterns.