what is the tranformatoin of snow to glacial ice?
150720
"Ice that makes up glaciers originally fell on its surface as snow. To become ice, this snow underwent modifications that caused it to become more compact and dense. Glacial ice has a density of about 850 kilograms per cubic meter. The density of snow ranges from about 50 to 300 kilograms per cubic meter (the density of fresh water is approximately 1000 kilograms per cubic meter). After the snow falls, the crystals can be reduced by the effects of melting and sublimation. Scientists call this process ablation. For most glaciers, ablation is a phenomena dominant in the summer months. The snow also undergoes physical compaction through melting and refreezing. At first, these processes cause the original snowflakes to be transformed into small round crystals. This partly melted, compressed snow is called névé. Névé has a density exceeding 500 kilograms per cubic meter. If the névé survives the ablation that occurs during the summer months it is called firn. When this process happens year after year, a number of layers of firn can accumulate. Accumulation then causes a further increase in density, modifying the firn into glacier ice, as the lower layers of firn are compressed by the weight of the layers above. On average, the transformation of névé into glacial ice may take 25 to 100 years."
21574
It depends on the structure of the structure of the snow particles, whether the snow is wet or dry (that is on air and ground temperature). It can be 4:1 or 8:1, and anything in between. Again, these are approximate values.
833095
an updraft of cold air freezes water droplets into crystle. All of them are 6 sided, and EVERY ONE of them is different - amazing eh.\n\nyou can go to http://snowflakebentley.com/snowflakes.htm for cool pics and \nhttp://www.kidzworld.com/site/p1587.htm\nto see how snow is formed.
937218
ice is converted to water and water to gas.
781761
The answer is either 0% or 100%. If ice is 0 degrees C it will remain as ice. [in theory]
23633
Solid to gas Sublimation\nSolid to liquid Melting\nLiquid to solid freezing\nLiquid to gas Evaporation\nGas to liquid Condensation\nGas to solid Solidification
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Ice cores:\nhttp://en.wikipedia.org/wiki/Paleoclimatology
772634
The water equivalent of a snow pack is the amount of water that it contains, regardless of its depth. For example, if the snow covering a given area has a water equivalent of 5 m, then it will melt into a pool of water 5 m deep covering the same area. This is a much more useful measurement to hydrologists than snow depth, as the density of even freshly fallen snow widely varies. New snow often has a density of around 12% of water, and even under cold conditions, the same snow will settle under its own weight until it is approximately 33% water. More snow on top of this will compress it even further. By late spring, snow densities often exceed 50% of water [1].\n\nWater equivalent is of great interest to water managers wishing to predict spring runoff and the water supply of cities downstream. Measurements are made manually at marked locations known as snow courses, and remotely using special scales called snow pillows.
1098665
Many people think that snow is just frozen rain that falls to the ground. The true process occurs in the clouds, when ice crystals form from the water vapor. This process is called sublimation and describes the solid form of snow forming directly from the vapor phase of water, without passing through the liquid water phase (rain).\n\nIt turns out that "pure" snow is made up of snowflakes, which are made up of 2 to 200 separate snow crystals. Snow crystals are crystals that have formed around tiny bits of dirt that have been carried up into the atmosphere by the wind. \n\nThe type of crystals depends on the amount of humidity and temperature present when they are forming. When cloud temperature is at freezing or below and the clouds are moisture filled, snow crystals form. The ice crystals form on dust particles as the water vapor condenses and partially melted crystals cling together to form snowflakes. As the snow crystals grow, they become heavier and fall towards Earth.\n\nAs the snowflakes move throughout the cloud, it crystallizes in different ways producing unpredictable shapes and sizes. When it’s very cold and snowing, the flakes are small, and when it’s closer to 32 degrees Fahrenheit, the flakes are larger.
489288
hmmm ..... go here !>>> under google >>> http://scholar.google.com/scholar?q=glaciological%20volcanic%20index:%20definition,%20scale,%20implications&hl=en&lr=&oi=scholart\nNew modeling of the Vostok ice flow line and implication for the glaciological chronology of the … - group of 10 »\nF Parrenin, F Rémy, C Ritz, MJ Siegert, J Jouzel - JOURNAL OF GEOPHYSICAL RESEARCH, 2004 - ggy.bris.ac.uk \n... 2. Description of the Glaciological Dating Model Used [ 5 ] To compute the age of ...\nNote that there is a circular problem in the model definition: the thinning ...
897140
....C! ...... (because it is found in the middle of ICE)
985873
Snow is precipitation in the form of crystalline water ice, consisting of a multitude of snowflakes. Since it is composed of small rough particles it is a granular material. It has an open and therefore soft structure, unless packed by external pressure.\n\nSnow is commonly formed when water vapor undergoes deposition high in the atmosphere at a temperature of less than 0°C, and then falls to the ground. It can also be produced by hoar frost which falls from the surface on which it is formed, or falling particles of ice fog formed when the humidity in surface air freezes at very low temperatures. Snow is less dense than rain, which means the same amount of moisture will produce a greater volume of snow than it will rain. One rule of thumb is that the water in eight units of snow is equivalent to one unit of rain. See Snow density.\n\nYou could get more informatino from the link below...
291177
Condensing is the process where gas turns to liquid. Since ice is a solid, it won't condense anywhere in the universe!
88715
Latent heat of ice is 334kJ/kg.\nThis means, to convert 1kg of ice at 0c to 1kg of water at 0c it would require 334kJ (or 334000 Joules). \nSo, to convert 0.3kg of ice to water at the same temperature would require 0.3*334 or about 100kJ.\nThe answer would be (A) above.
392443
That is an interesting question.  What is snow made of?\nWater, right? Except it is water frozen in a special\nway, by accretion of little bits as the snowflake\ndrops through the atmosphere, so that snow is pretty\nrandom stuff, compared to ice which is also frozen\nwater, but which has all the water molecules nicely\nlined up which makes it transparent.  The randomness\nof snow means that when light strikes the snow it\ngets scattered in all directions, and all colors are\njumbled up, so when you look at snow all you see is\nthe jumble, which shows up as white light.  When\nit melts, it just turns into water (and usually\ndisappears into the ground) which does not have the\nkind of randomness snow has at the level of the\nwavelengths of visible light.  (Visible light\nhas wavelengths much longer than the size of molecules).\nSo, the "white" did not really exist on its own -\nit was a property of the arrangement of the water molecules\nin snow, and disappears as soon as that arrangement is\nchanged.\n\nDoes this help?
40688
From what choices? There are a few erosion processes connected to glacial erosion. \nRock Failure\nPlucking\nAbrasion\nand even fluvial erosion called glaciofluvial erosion.\n\nHere are some examples:
143592
Heat required to rise the temperature of  ice from \n-10 degree centigrade to 0 degree centigrade \n= ms(t2-t1)\n=10 * 2.1 * 10  g* {joule/(g*degree)} (degree)\n=210 joule\n\nHeat required to convert ice to water  \n=mass x specific latent heat fusion of ice \n=10 * 336  g*joules per gram\n=3360 joule\n\nHeat required to rise the temperature of  water from \n0 degree centigrade to 100 degree centigrade\n=ms(t2-t1)\n=10 * 4.2 * 100\n=4200 joule\n\nHeat required to convert water to steam\nmass x specific latent heat of vaporisation of water\n10 * 2264\n22640 joule\n \nHeat required to rise the temperature of steam from \n100 degree centigrade to 110 degree centigrade \n= ms(t2-t1)\n=10 * 2 *  (110-100)\n=200 joule.\n\ntotal of all is  30610 joule.