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Results 1 - 10 of 10 DLESE Reviewed Collection = DLESE Reviewed Collection
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This news article discusses data on Jupiter's moon Europa returned by NASA's Galileo and Voyager spacecraft and the possibility that an ocean of liquid water might exist on Europa and, with it, the possiblilty for extraterrestrial life. Full description.
Grade level: High (9-12), General public
Resource type: Illustration - scientific, Imagery - remotely sensed, Photograph, Journal article, Report
Subject: Cryology, Structural geology, Hydrology, Space science
 
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NASA ED Mall Collection    Browse collection
DLESE Reviewed Collection (DRC) DLESE Reviewed Collection    Browse collection
Digital Water Ed Library (DWEL)     Browse collection
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This news article examines evidence that parts of the Antarctic ice sheet have undergone episodes of instability that appear to correspond with periods of unusually warm temperatures in the Northern Hemisphere during the last ice age. Full description.
Grade level: High (9-12)
Resource type: Journal article
Subject: Climatology, Cryology
 
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This press release explains how scientists have enhanced their ability to predict space weather by detecting active regions on the sun's surface on the far side of the Sun, before they rotate to its Earthward side. Using the SWAN instrument aboard the SOHO satellite, they are able to detect hydrogen atoms in space, which are being illuminated by radiation emitted from active regions (sunspots), even ... Full description.
Grade level: High (9-12), College (13-14)
Resource type: Journal article
Subject: Physics, Space science
 
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This article provides an account of the unusual behavior of Comet Linear, which broke up as it swept past the Sun in July of 2000. Users can read about the breakup and view pictures taken by the Hubble Space Telescope and by the 40-inch Jacobus Kapetyn Telescope located in the Spanish Canary Islands. Links to related articles are provided. Full description.
Grade level: High (9-12)
Resource type: Journal article
Subject: Space science
 
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Until now, studies that involve the ocean floor have been at a disadvantage due to an almost complete lack of accurate marine base maps. Materials presented here serve to introduce the Pacific Seafloor Mapping Project, an endeavour by the United States Geological Survey to produce high-resolution base maps of the sea floor. These maps are intended for use in identifying areas of erosion and deposition ... Full description.
Grade level: High (9-12)
Resource type: Journal article
Subject: Geology, Physical oceanography
 
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Milutin Milankovitch formulated a comprehensive mathematical model that calculated latitudinal differences in solar radiation upon the Earth's surface and the corresponding surface temperatures for 600,000 years prior to the year 1800. Readers can learn how Milankovitch developed his theories and how they were confirmed years later by climatic data found in deep-sea sediment cores, which indicated ... Full description.
Grade level: High (9-12)
Resource type: Journal article
Subject: Atmospheric science, Climatology, Space science
 
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This is a news article on the International Conference on Atmospheric Electricity that was held in 1999. The article describes the use of wide-band interferometers (radio recievers) to construct three-dimensional maps of lightning within a storm. It also features links to other lightning-related sites. Full description.
Grade level: College (13-14), College (15-16), Graduate / Professional
Resource type: Journal article
Subject: Atmospheric science, Climatology
 
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Visitors to this site can read and view satellite imagery about the most recent La Nina event, which produced less-than-normal snowfalls in Western North America. A TOPEX/Poseidon image of the Pacific ocean illustrates the warmer water and higher-than-normal sea surface height in the Western Pacific which are characteristic of a La Nina event. A discussion of the uncertainties of long-range climate ... Full description.
Grade level: Middle (6-8), High (9-12), College (13-14)
Resource type: Visualization - scientific, Journal article
Subject: Atmospheric science, Climatology
 
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Visitors to this site can view satellite imagery and read an account of how remote sensing was employed to evaluate the extent of flooding and sediment load in rivers on the coastal plain of North Carolina as a result of Hurricane Floyd in September, 1999. This feature is part of NASA's Earth Observatory, a publication that focuses on Earth's climate and environmental change. Full description.
Grade level: High (9-12)
Resource type: Imagery - remotely sensed, Journal article
Subject: Geology, Hydrology, Space science
 
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Major volcanic eruptions alter the Earth's radiative balance, as volcanic ash and gas clouds absorb terrestrial radiation and scatter a significant amount of the incoming solar radiation, an effect known as "radiative forcing" that can last from two to three years following a volcanic eruption. This results in reduced temperatures in the troposphere, and changes in atmospheric circulation patterns. ... Full description.
Grade level: High (9-12)
Resource type: Photograph, Journal article
Subject: Atmospheric science, Geology
 
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