You can use this page to browse through all of the individual visualizations that have been cataloged in our digital library. You can also browse them as collections related to particular topics
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Detecting El Niño in Sea Surface Temperature Data
SST anomalies for December 1997 displayed in My World GIS. Red indicates above average temperatures compared to average SST temperatures for December data averaged over the years 1982-1998. This chapter introduces you to normal seasonal sea surface temperature (SST) variation as well as extreme variation, as in the case of El Niño and La Niña events, in the equatorial Pacific Ocean. You will learn how to download seasonal SST data from the Pacific Marine Environmental Laboratory (PMEL), via a THREDDS server, for the years 1982 to 1998. With My World GIS, you will visualize and analyze that data, looking for the tell-tale SST signature of El Niño and La Niña events that occurred during that time period. At the conclusion of the chapter, you will be given the opportunity to analyze a season of your own choosing to determine if an El Niño and La Niña SST pattern emerged in that year's data.
Dryland Rivers Research
This site is intended to stimulate research by providing an information focus and provoking networking between those working on dryland rivers and the sediments they leave behind. Topics covered include processes and products, hydrology, dynamics, architecture of rivers and their floodplains, adjacent and interacting processes, modern and ancient dryland rivers and integration of geomorphology and sedimentology. Users may follow links to dryland river descriptions and myths, hot topics, a discussion forum, images and other useful information.
Chemical Weathering of Feldspar to Clay
This site features a short animation that shows the evolution of an unaltered feldspar crystal to a clay as a result of progressive chemical weathering. The animation can be paused and rewound to emphasize important points associated with the content. As the clip rolls, captions explain what viewers are observing.
Weathering and Mineral Evolution
This annotated slide set shows how the introduction of rain water changes the elemental composition of parent material as it is weathered into first immature and then mature soil. The site illustrates and explains the chemical weathering of aluminum, iron, silicon, calcium, magnesium, sodium, and potassium minerals under minimal, moderate, and intensive weathering conditions. Captions also explain in which climates each type of weathering occurs.
Weathering and Clay Evolution
This annotated animation shows how primary minerals lose content at a linear pace. The site illustrates how primary minerals, 2:1 clays, 1:1 clays, and aluminum and iron oxides develop as a function of time.
This annotated animation explains how chemical weathering affects the evolution of parent material from highly resistant primary minerals to both secondary minerals and minerals in solution. It illustrates how, over time, weathering changes both the elemental and the mineral composition of soil.
This website features an animation of the process of radioactive decay. Users can select the half life of the nuclei and watch them decay away as a function of time. Shown also is a histogram of the number of nuclei remaining at a given time.
Coastal Upwelling Animation
This site from Exploring Earth features an animation of upwelling in a coastal environment. It shows how onshore winds blowing along a coastline push surface water, which, when combined with the Coriolis effect, moves the water away from the coast. As surface water moves outward, cold, plankton-rich water from the ocean bottom moves toward the coast and rises to replace the displaced surface water.
This site from NOAA's Geophysical Fluid Dynamics Laboratory presents descriptions, 3-D images and animations of some noteworthy hurricanes in recent history, including Andrew, Opal and Fran. The gallery also includes hurricane models under increased atmospheric CO2 conditions. The visualizations are offered as examples of various visualization techniques and how they might be used to convey complex results as understandable images.
NASA's Hurricane Resource Page
NASA's Hurricane Resource Page provides a wide variety of information regarding recent and historic hurricanes. A collection of links feature information including the latest images and animations from recent hurricanes, in depth web pages about hurricanes in 2005, educational tools and products, hurricane topics and the latest hurricane news. This webpage is a very useful resource for anyone looking for information on current and recent hurricanes.