This is a lesson that enables the student to describe how hurricanes move and change appearance over time through the use of the pubic domain image processing software. Full description.

Until recently, the total energy imparted to the oceans from the moon's gravitational pull has not been fully accounted for: about 30 percent had seemingly vanished without mathematical explanation. The total energy dissipating along the world's shallow areas and coasts don't add up to the expected total. However, data collected by the U.S./French satellite called TOPEX/Poseidon may provide the answer. ... Full description.

Estuaries are partially enclosed bodies of water along coastlines where fresh water and salt water meet and mix. They act as a transition zone between oceans and continents. This site examines various aspects of estuaries, focusing on the geological features that make an estuary, as well as the water circulation patterns by which they are classified. It also has a section that allows the user to access ... Full description.

Estuaries have physical traits, and scientists use a variety of measurements such as water depth, salinity, and current speed to describe an estuary. This site describes the various measurements that make up the physical properties of an estuary, using Narragansett Bay as an example. Specific sections of this site focus on water chemistry (temperature, salinity, oxygen, chlorophyll a, and pH), circulation ... Full description.

The Harmful Algal Bloom (HAB) Project develops and supports systems that provide information on the location and extent of red tide blooms in the Gulf of Mexico. The Experimental HAB bulletin alerts subscribers to developing blooms and changes in the location and extent of existing blooms. The HAB Mapping System (HABMapS) provides the position of an identified bloom and data from environmental conditions ... Full description.

Researchers have identified approximately 140 individual impact craters on Earth. These craters probably represent only about 25 percent of those to be found. Assuming an equal rate of impact around the globe, many more craters remain to be discovered, particularly in remote land regions of our planet and in the oceans. This activity uses satellite images of several craters on the earth to study impact ... Full description.

Thousands of people in the Andes mountains of Peru are having their lives affected in both a practical and cultural way by climate change, which is causing the region's glaciers to melt. This document explores the causes of the glacial melt and its impacts on the local cultures. Full description.

Using the European Space Agency's Infrared Space Observatory, Spanish and Italian astronomers have for the first time measured the total amount of water in cold regions of the Milky Way. The findings and implications of this research are discussed here, with emphasis on the fact that water is abundant in these cold regions and exists mostly in the form of ice. Images and videos are included. Full description.

The Antarctic Meteorological Research Center provides recent and archived imagery of icebergs, including movies. Icebergs from the Ross, Ronne, and Larsen ice shelves are pictured. Links to a webcam, a Frequently Asked Questions page, and other sites providing pictures and information about icebergs are also provided. Full description.

Visitors to the ImageBank can view and download photographs, remote imagery, and slide shows. The images are related to earth and space science topics such as dinosaurs, earthquakes, volcanoes, rocks and minerals, mining and petroleum, groundwater, planets and astronomical phenomena, and others. The site contains thousands of images and is searchable by category, continent, country, or keyword. A ... Full description.