Jinyou Liang, in Chemical Modeling for Air Resources, 2013. Gravity. Greenhouse Gases. Latitude strongly influences climate because _______ solar energy falls on areas that are closer to the equator than to the poles. 32. It seems as though it is possible that these clouds are formed also in pure water crystals. The clouds can also be associated with very high surface winds, which may indicate the presence of, or induce, winds and waves in the stratosphere. C22-Polar Vortex-Ozone Hole-Ozone Depletion-Polar Stratospheric Clouds - Geography, Environment - Duration: 17:49. Though CFC production has been curtailed, the threat to upper atmospheric ozone continues because CFCs. PLAY. The polar stratospheric clouds had a warming effect on the poles, increasing temperatures by up to 20 °C in the winter months. One main type of PSC is made up mostly of supercooled droplets of water and nitric acid and is implicated in the formation of ozone holes. Start studying Stratospheric Ozone Quiz. The consequences of the present uncertainties for the chemical processing of stratospheric air are briefly … We show that the ozone hole develops and the clouds dissipate in the same place and at the same time. The increasing greenhouse gases in our atmosphere result in increasing the average temperature on Earth. closed loop. This pho - tograph of an Arctic polar stratospheric cloud (PSC) was taken from the ground at Kiruna, Sweden (67°N), on 27 January 2000. A continues record of annual average atmospheric CO2 concentrations from Mauna Loa, Hawaii Revels. The gases the do absorb and radiate heat. what does ozone shield us from. An area in the stratosphere where ozone is highly concentrated. The gases the do absorb and radiate heat. the long term prevailing weather conditions at a particular place based upon records taken, distance from the equator measured in degrees north or south of the equator, the short term periodic change in the location of warm and cold water masses in the Pacific Ocean, the water in the eastern Pacific Ocean is cooler than usual, an area in the stratosphere where ozone is highly concentrated, a class of human-made chemicals that scientists thought were damaging the ozone layer, a thinning of stratospheric ozone that occurs over the poles during the spring, high-altitude clouds made of water and nitric acid that form when temperatures fall below about -80 degrees C, increase in the average temperature of earth's surface, requires developed countries to decrease emissions of carbon dioxide and other greenhouse gases by an average of 5 percent below their 1990 levels by 2012. PSCs appear in the lower stratosphere near the poles in winter. View more Images of the Day: May 25, 2000. Although polar stratospheric clouds can form in the Arctic, they rarely last long enough for extensive decreases in ozone. The stratosphere contains ~9.9% of air mass over the Earth, and ranges from ~10 to ~50 km ASL with ascending temperature up to ~270 K. Due to precipitation in the troposphere, H 2 O can scarcely survive through vertical transport to reach the stratosphere. Any ice growth was slowed immensely and would lead to any present ice melting. Chlorine atoms are released from polar stratospheric clouds. Stratospheric Ozone Quiz . (2) They can monitor hurricane movement. POLAR STRATOSPHERIC CLOUDS: The stratosphere above the Arctic Circle is getting cold ... very cold. Polar Stratospheric Clouds Main content. Yet, these inclusions of Nitric or Sulfuric acids, are they from human activities? PSCs were sighted between 10 and 25 km and were usually first observed by mid‐June. This does not reduce CO2 in the atmosphere. Log in Sign up. The particles that form typically consist of a mixture of water and nitric acid (HNO3). Antarctica has 5-6 months of these temperatures. I want to know the origin of nitric acid or the sulfuric acid within these clouds. In such conditions the ice crystals of the cloud provide a suitable surface for conversion of unreactive chlorine compounds into reactive chlorine compounds, which can deplete ozone easily. Polar stratospheric clouds are clouds that occur in the lower stratosphere at very low temperatures. tinachmielewski. 1.1.2 Stratosphere. With these clouds the highly reactive chlorine gas forms and reacts with the clouds. Write. (3) They can distinguish high clouds from low clouds. Polar stratospheric clouds (PSCs), also known as nacreous clouds from nacre, or mother of pearl, due to their iridescence, are clouds in the winter polar stratosphere. Air motions move ozone depleting substances to the atmosphere. Polar stratospheric clouds only form in temps -78C. Animal respiration. Bottom line: Polar stratospheric clouds – also called nacreous clouds or mother-of-pearl clouds – have been putting on a show for those at latitudes near the Arctic Circle. PMF IAS 30,605 views. In contrast, the Earth’s surface in the northern polar region lacks the land/ocean symmetry characteristic of the southern polar area. Polar Stratospheric Clouds (PSCs) In winter the polar stratosphere is so cold (-80°C or below) that certain trace atmospheric constituents can condense. Risen some years and fallen other years but has increased overall. Damages DNA. STUDY. Temperatures as high as 0 °C (32 °F) are observed near the top of the stratosphere. We describe measured properties of Antarctic polar stratospheric clouds and consider the possible relationship between the clouds and the formation of the ozone hole. Due to their minimal albedo properties and their optical thickness, polar stratospheric clouds act similar to a greenhouse gas and traps outgoing longwave radiation. 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