{ "count": 7, "next": null, "previous": null, "results": [ { "id": 10525, "url": "https://svs.gsfc.nasa.gov/10525/", "result_type": "Produced Video", "release_date": "2009-11-04T00:00:00-05:00", "title": "Hello Crud", "description": "This segment provides an introduction to aerosols- their varied sources, brief lifetimes, and erratic behavior. Glory's APS will help researchers determine the global distribution of aerosol particles. This unique instrument will unravel the microphysical properties of aerosols, and will shed light on the chemical composition of natural and anthropogenic aerosols and clouds. For complete transcript, click here. || Hello_Crud__512x288.00727_print.jpg (1024x576) [58.9 KB] || Hello_Crud__512x288_web.png (320x180) [160.9 KB] || Hello_Crud__512x288_thm.png (80x40) [15.7 KB] || Hello_Crud_960x720_AppleTV.webmhd.webm (960x540) [66.8 MB] || Hello_Crud_1280x720_ProRes.mov (1280x720) [4.6 GB] || Hello_Crud_1280x720_H264.mov (1280x720) [128.2 MB] || Hello_Crud_960x720_AppleTV.m4v (960x540) [160.6 MB] || Hello_Crud__640x480_ipod.m4v (640x360) [52.5 MB] || Hello_Crud__512x288.mpg (512x288) [37.2 MB] || Hello_Crud_320x240.mp4 (320x180) [22.3 MB] || Hello_Crud.wmv (320x180) [32.7 MB] || ", "hits": 16 }, { "id": 10387, "url": "https://svs.gsfc.nasa.gov/10387/", "result_type": "Produced Video", "release_date": "2009-02-19T00:00:00-05:00", "title": "Aerosols Impact Cloud Formation", "description": "Aerosols are complex particles; they occur in nature and can also be generated by human activity. One important new area of aerosol research involves how aerosols impact clouds. Without aerosols, clouds could not exist. Aerosol particles serve as condensation nuclei for water vapor in the atmosphere. Atmospheric water molecules are drawn to aerosol particles like magnets, forming water droplets and eventually creating a cloud. The introduction of a larger number of aerosols will modify cloud's natural properties, leading to an accumulation of water droplets that are smaller in size but greater in number. Clouds play an important role in regulating Earth's climate; aerosol-rich air masses generate clouds that are bigger, brighter, and longer lasting. || ", "hits": 433 }, { "id": 10389, "url": "https://svs.gsfc.nasa.gov/10389/", "result_type": "Produced Video", "release_date": "2009-02-19T00:00:00-05:00", "title": "Aerosols Absorb; Aerosols Reflect", "description": "Some aerosol particles primarily reflect solar radiation and cool the atmosphere, and others can also absorb radiation and warm the surrounding air. When aerosols heat the atmosphere, they create an unstable environment where clouds can't thrive. The suppression of clouds leads to further warming of the atmosphere by solar radiation. Aerosols are a complex but critical piece of the climate puzzle, and researchers are still working to understand the role of these curious particles. || ", "hits": 325 }, { "id": 10390, "url": "https://svs.gsfc.nasa.gov/10390/", "result_type": "Produced Video", "release_date": "2009-02-19T00:00:00-05:00", "title": "Sea Salt Aerosols", "description": "Aerosols are complex particles; they can occur in nature but can also be generated by humans. One source of naturally-occurring aerosols is the ocean-wave activity which propels salt particles into the air. These particles then serve as cloud condensation nuclei and lead to cloud formation. Sea salt still image courtesy of Chere Petty, University of Maryland, Baltimore County; NSF grant DBI-0722569 || ", "hits": 171 }, { "id": 10391, "url": "https://svs.gsfc.nasa.gov/10391/", "result_type": "Produced Video", "release_date": "2009-02-19T00:00:00-05:00", "title": "Potassium Aerosols", "description": "Potassium is an alkali metal that occurs naturally bound to other elements in seawater and minerals. Mineral aerosols, such as Saharan dust and sea salt, can be the source of water-soluble potassium. Video courtesy of Chere Petty, University of Maryland, Baltimore County; NSF grant DBI-0722569. || ", "hits": 21 }, { "id": 10393, "url": "https://svs.gsfc.nasa.gov/10393/", "result_type": "Produced Video", "release_date": "2009-02-19T00:00:00-05:00", "title": "Soot and Sulfate Still Images and Video of Tractor Soot Particle", "description": "Aerosols are complex particles; they can occur in nature but can also be generated by humans. Black carbon, or soot, is generated from industrial pollution, traffic, outdoor fires, and household burning of coal and biomass fuels. Soot is a product of incomplete combustion, especially of coal, diesel fuels, biofuels and outdoor biomass burning. When soot absorbs sunlight, it heats the surrounding air and reduces the amount of sunlight reaching the ground. The heated air makes the atmosphere less stable, creating rising air (convection) which forms clouds and brings rainfall to regions that are heavily polluted. Still image courtesy of Peter Buseck, Arizona State University. Video courtesy of Chere Petty, University of Maryland, Baltimore County; NSF grant DBI-0722569. || ", "hits": 24 }, { "id": 20112, "url": "https://svs.gsfc.nasa.gov/20112/", "result_type": "Animation", "release_date": "2007-09-03T00:00:00-04:00", "title": "AIM's Cosmic Dust Experiment and Cloud Formation", "description": "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 Experiment instrument on the Aeronomy of Ice Mission will be able to identify how important cosmic dust particles are in the lifecycle of these clouds. || ", "hits": 59 } ] }