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NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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This computer animation illustrates the Earth's space storm shield in action. The solar wind, a thin, high-velocity electrified gas, or plasma, blows constantly from the Sun at an average speed of 250 miles per second (400 kilometers/sec). It is represented as a stream of yellow particles flowing from the Sun. The solar wind impacts the Earth's magnetic field, represented by the blue lines. As the solar wind flows past the Earth's magnetic field, it generates enormous electric currents that...
Topics: Coronal Mass Ejection, Magnetic Fields, Magnetosphere, What -- Sun, What -- Earth, What -- Polar
Source: http://svs.gsfc.nasa.gov/goto?10076
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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This is a conceptual animation showing how polar ice reflects light from the sun. As this ice begins to melt, less sunlight gets reflected into space. It is instead absorbed into the oceans and land, raising the overall temperature, and fueling further melting. Note: This is the high definition version of the Ice Albedo-Global animation MPEG. Animator: Susan Twardy (HTSI), Cindy Starr (GST). Scientist: Claire Parkinson (NASA/GSFC), Waleed Abdalati (NASA/GSFC), Reto Stockli (NASA/GSFC). Writer:...
Topics: Albedo, Byrne, Climatology, Cryology, Earth Science, Gonnelli, HDTV, Polar Ice, Reflectivity, Earth...
Source: http://svs.gsfc.nasa.gov/goto?10021
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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Like clouds in other parts of the atmosphere, one element required for polar mesospheric clouds to form is tiny dust particles on which water vapor can accumulate and grow into ice crystals. Nearer to Earth's surface, clouds form from 'cloud condensation nuclei' that can be sea salt spray, desert dust, or other materials lofted from the surface. In the mesosphere it is thought that cosmic dust particles falling into the Earth's atmosphere might serve this same purpose, and the Cosmic Dust...
Topics: Atmosphere, Atmospheric science, Clouds, Dust, Earth, Earth Science, HDTV, Noctilucent, Earth...
Source: http://svs.gsfc.nasa.gov/goto?10154
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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POLAR looks at the polar aurora and sun-earth connection long term effects. Note: Polar Spacecraft in orbit Animator: Chris Meaney (HTSI).
Topics: Polar Ice, What -- Polar, What -- Sun, What -- Earth
Source: http://svs.gsfc.nasa.gov/goto?10307
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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Because of their high altitude, near the edge of space, noctilucent clouds shine at night when the Sun's rays hit them from below while the lower atmosphere is bathed in darkness. Also known as Polar Mesospheric Clouds or PMCs, they typically form in the cold, summer polar mesosphere and are made of water ice crystals. In April 2007 the Aeronomy of Ice in the Mesosphere (AIM) Mission was launched with the express purpose of studying noctilucent clouds. Note: Because of their high altitude, near...
Topics: Byrne, Clouds, Gonnelli, Noctilucent, Shuttle, Location, Polar, Location, Mesosphere, AIM,...
Source: http://svs.gsfc.nasa.gov/goto?10002
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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Arctic Vortex - During winter, stratospheric winds (uppermost atmosphere) tend to form a vortex around the North Pole. These polar clouds lead to chemical reactions that affect the chemical form of chlorine in the stratosphere. In certain chemical forms, chlorine can deplete the ozone layer. Note: This is the standard definition version of the Arctic Vortex animation MPEG. Animator: Susan Twardy (HTSI). Scientist: Paul Newman (NASA/GSFC). Writer: Michael Starobin (HTSI).
Topics: Arctic Jetstream, Atmosphere, Byrne, Earth Science, Gonnelli, Ozone, Stratospheric Clouds,...
Source: http://svs.gsfc.nasa.gov/goto?10005
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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The Aeronomy of Ice in the Mesosphere (AIM) mission will provide the first detailed exploration of the Earth's unique and elusive noctilucent or night shining clouds that are found literally on the 'edge of space'. Located near the top of the Earth's mesosphere (the region just above the stratosphere), very little is known about how these polar mesospheric clouds form or why they vary. They are being seen at lower latitudes than ever before and have been growing brighter and more frequent,...
Topics: Clouds, Earth, HDTV, Noctilucent, AIM, What -- Aeronomy of Ice in the Mesosphere, What -- Polar,...
Source: http://svs.gsfc.nasa.gov/goto?10148
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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Note: This is a conceptual animation showing how polar ice reflects light from the sun. As this ice begins to melt, less sunlight gets reflected into space. It is instead absorbed into the oceans and land, raising the overall temperature, and fueling further melting. Animator: Susan Twardy (HTSI), Cindy Starr (GST).
Topics: Cryology, HDTV, Earth Science, Cryosphere, Glaciers/Ice Sheets, Ice Sheets, Earth Science,...
Source: http://svs.gsfc.nasa.gov/goto?10160
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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The Solar Occultation For Ice Experiment (SOFIE) instrument uses solar occultation to measure cloud particles, temperature and atmospheric gases involved in forming the noctilucent clouds studied by the Aeronomy of Ice in the Mesosphere (AIM) spacecraft. The instrument will reveal the recipe of chemicals that prompt formation of polar mesospheric clouds. It will provide the most accurate and comprehensive look to date of ice particles and chemicals within the clouds as well as of the...
Topics: Atmospheric science, HDTV, Earth Science, Atmosphere, Clouds, Cloud Types, What -- Aeronomy of Ice...
Source: http://svs.gsfc.nasa.gov/goto?10115
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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As part of the ocean conveyor belt, warm water from the tropical Atlantic moves poleward near the surface where it gives up some of its heat to the atmosphere. This process partially moderates the cold temperatures at higher latitudes. As the warm water gives up its heat it becomes more dense and sinks. This circulation loop is closed as the cooled water makes its way slowly back toward the tropics at lower depths in the ocean. If the poles warm, it is possible that melt water from glaciers and...
Topics: Byrne, Climate, Earth Science, Global Warming, Gonnelli, Ice Age, Ocean Currents, What -- Polar,...
Source: http://svs.gsfc.nasa.gov/goto?10031
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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Black soot may contribute to melting glaciers and other ice on the planet and eventually a warmer Earth. Traveling potentially thousands of miles from its sources on air currents, this pollution eventually settles out of the air, onto land and into the oceans. On ice and snow, it darkens normally bright surfaces. Just as a white shirt keeps a person cooler in the summer than a black shirt, the vast stretches of polar ice covering much of the planet's top and bottom reflect large amounts of...
Topics: Byrne, Earth Science, Global Warming, Gonnelli, Ice Albedo, Pollution, Reflectance, Reflectivity,...
Source: http://svs.gsfc.nasa.gov/goto?10023
NASA Images
by NASA/Goddard Space Flight Center Conceptual Image Lab
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This animation provides a close perspective of the relationship between ice and solar reflectivity. As glaciers, the polar caps, and icebergs (shown here) melt, less sunlight gets reflected into space. Instead, the oceans and land absorb the light, thus raising the overall temperature and adding energy to a vicious circle. Note: This is the standard definition version MPEG of the Ice Albedo(clean ice case) Animation. Animator: Susan Twardy (HTSI). Scientist: James Hansen (NASA/GSFC GISS)....
Topics: Albedo, Byrne, Earth Science, Global Warming, Gonnelli, HDTV, Ice, Melting, Pollution, Reflectance,...
Source: http://svs.gsfc.nasa.gov/goto?10022
NASA Images
by NASA/Goddard Space Flight Center/Conceptual Image Lab
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An artist concept of the spacecraft. The microwave instruments on board NOAA-N Prime are so sensitive that they can see Earth's surface through clouds. NOAA-N Prime will deliver essential atmospheric and surface parameters to use in scientific forecast models. N Prime provides essential critical information for creating accurate weather forecasts 2-3 days in advance. Note: Beauty pass of the NOAA-N Prime satellite. Animator: Chris Meaney (HTSI). Producer: Silvia Stoyanova (UMBC)....
Topics: Atmospheric science, Climate, Geology, HDTV, Human geography, Hurricane, Natural hazards, Remote...
Source: http://svs.gsfc.nasa.gov/goto?10373