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
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.
Natural Hazards: Floods
This site contains an interactive map of recent worldwide flood events. Clicking on the icons on the map will display satellite imagery and a detailed description of the flood events. Information in each description includes time and date of the event(s) as well as cause and effects of the event(s). Users may also choose to follow hotlinks to the detailed flood event information. This site is part of NASA's Earth Observatory, Natural Hazards division.
Climate TimeLine Information Tool
The Climate TimeLine (CTL) Information Tool summarizes climate history for time spans from 1 year to 100,000 years ago and beyond. The relation between human development, weather, and climate is explored. The CTL explains how past climate is measured, provides basic information on paleoclimatology, and explains the use of paleo proxies. There is a tutorial on drought and how to use the CTL to investigate that topic. There is also a climate glossary and links to climate and paleoclimate data.
Using imagery and visualizations, this site offers investigations of almost every Earth science topic imaginable. It is structured to follow the unit and chapter headings of an Earth science textbook, offering interactive explorations to complement the topics. The scope is extensive, covering dynamic Earth processes, atmospheric science and ocean science.
San Antonio Water System Flash Animations
This site features a series of Flash-based animations on several aspects of the San Antonio Water System. Although regional in focus, the topics are broadly applicable. They include: the hydrologic cycle, aquifer structure and function; non-point-source pollution, fresh water distribution, waste water treatment, aquifer storage and recovery and household water conservation. There are also links to a few on-line stories, but those are not included in this review.
SeaWiFS: NASA Carbon Cycle Initiative
SeaWifs 3 year data of the pulse of the planet, helps show the Carbon Build up in the air. For this presentation the Scientist wanted to show how the earth reacts to the chemicals in the air.
Why is the Land in South Louisiana Disappearing?
This USGS news press release describes how the combination of shoreline erosion, land subsidence, anthropogenic infuences, and sea level rise are resulting in the loss of land in South Louisiana. It also discusses the value of Louisiana's coastal wetlands in terms of oil and gas infrastructure, shipping, fisheries, hurricane protection, and waterfowl.
American Field Guide: Relative Dating - Telling Time Using Fossils
This website integrates video footage and information with lesson plans and activities to teach students about the concept of relative dating. Students will graph a range chart for ammonites, determine the geologic age for several rocks, and determine which rocks will be most useful for oil companies looking to drill oil. This site contains lesson plans, student worksheets, discussion questions, and links for more information.
Observe an animation showing the formation of an unconformity.
This website hosts an animation depicting the formation of an unconformity in the rock record. Users can play, rewind, fast forward and stop the animation at any point in the formation as well as read detailed text outlining the process. The animation is part of the Earth Exploration Visualization collection.
This page discusses thermal convection as it applies to the Earth's mantle and includes three QuickTime movies for three different cases of convection: heating from below, heating from within, and a combination of the two.