This collection of databases is intended to aid in the assessment of the process of water conflict prevention and resolution. The searchable collections include data such as case studies, freshwater treaties from 1820 to 2001, events concerning historical water relations from 1948 to 1999, a register of international river basins, and information on interstate water compacts in the United States. ... Full description.

The National Snow and Ice Data Center (NSIDC) is an information and referral center supporting polar and cryospheric research. Through its Data Catalog, NSIDC archives and distributes digital and analog data on snow cover, avalanches, glaciers, ice sheets, freshwater ice, sea ice, ground ice, permafrost, atmospheric ice, paleoglaciology, and ice cores. Users may browse their entire data collection ... Full description.

Wilson Alwyn Bentley (1865-1931), famous for his photomicrographs of snow crystals, prepared sets of glass lantern slides of dew, frost and ice crystals. Many of these sets found their way to colleges and universities around the United States. The University of Wisconsin's Department of Atmospheric and Oceanic Sciences donated their collection to the Schwerdtfeger Library in 2000. Shortly after, the ... Full description.

This portal provides access to a variety of educational and supporting materials for students and teachers of microbiology about the ecology, diversity and evolution of micro-organisms. Materials include information about microorganisms, extremophiles, and extreme habitats. There is also information about the Microbial Observatories (MO), research projects to study extremophiles and their environments ... Full description.

This site describes snow crystals and snowflakes. Although a common meteorological phenomenon, snow crystal growth is a fascinating and poorly understood process, in which remarkably complex and beautifully symmetric structures appear, quite literally, out of thin air. The many facets of snow crystals are described here, along with the attempts to understand their formation. Site highlights include ... Full description.

This clearinghouse-style site from the Environmental Literacy Councilprovides links to information, articles and educational materials on several environmental subjects, including water. The water-specific segment features information on topics ranging from hydroelectric power to eutrophication to rogue waves. The articles featured cover scientific and social aspects of water. The Teaching Water segment ... Full description.

This Web site includes shares the images, stories and discoveries that emerge from NASA Earth science research, including its satellite missions, in-the-field research and climate models. View global maps of NASA data, check out the Image of the Day and images of current events, and read feature articles and blogs. Also includes special collections of NASA images, including the World of Change series, ... Full description.

This website features the most complete set of astronaut photography of Earth from the beginning of human spaceflight in the 1960s to the digital photographs being downlinked daily from the International Space Station. The underlying database includes over 430,000 records in 2002, with new data added daily. The pages are maintained by the data source at NASA's Johnson Space Center and include search ... Full description.

The National Weather Service provides weather and marine data from buoys surrounding North America, the Carribean, and Great Britain. Historical and realtime data are featured. Data include wind, waves, atmospheric pressure, air and water temperature, and dewpoint. Frequently Asked Questions explain how the marine stations collect and transmit data, how quality is assured, and how the National Data ... Full description.

The Earth Science Picture of the Day is an image archive that is hosted by the Universities Space Research Association in association with NASA's Goddard Space Flight Center with a record of entries beginning September 2000. Each image is accompanied by a descriptive text and links to relevant supporting websites. Keyword searching is provided. Browsing by related fields includes: agriculture, astronomy, ... Full description.