This web page is a tide and current predictor provided by Dean Pentcheff from the University of South Carolina. The site allows you to select a region, choose the location, and then prepare a customized table of tidal height and/or current speed and direction. Full description.

This concentrated, in-depth resource provides access to recent information on El Nino Southern Oscillation (ENSO) and La Nina in the Pacific Ocean, including data, graphics, forecasts, historical perspectives, in-depth analyses, prediction benefits, impacts on human life, and information on the 1997/1999 El Nino and La Nina events. Links to relevant data include Tropical Atmosphere Ocean Project (TAO) ... Full description.

This resource offers information on the history and current management of sanctuaries, scientific and educational programs, and continuing efforts to conserve U.S. ocean and coastal treasures. The sanctuaries featured include: the Channel Islands, Cordell Bank, Fagatele Bay, Florida Keys, Flower Garden Banks, Grays Reef, Gulf of the Fallarones, Hawaiian Islands Humpback Whale, Monitor, Monterey Bay, ... Full description.

The National Climatic Data Center (NCDC) is part of the Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), and the National Environmental Satellite, Data and Information Service (NESDIS) and is the world's largest active archive of weather data. NCDC produces numerous climate publications and responds to data requests from all over the world. NCDC archives 99 percent of ... Full description.

The mission of the Arizona Water Resources Research Center (WRRC) is to facilitate research at Arizona universities on water problems of critical importance to the state and region. The WRRC works with public and private organizations and individuals, and provides information and services through a publications program and through outreach. The site includes: information on publications, research, ... Full description.

This United States Geological Survey (USGS) general interest publication presents a description of ground water in the U.S. This includes what ground water is, how it occurs, aquifers and wells, ground water quality and what affects it, and the state of U.S. ground water resources. Full description.

This Environment Canada fact sheet highlights information about groundwater. The sheet starts with the definition of groundwater and aquifers, then discusses the hydrologic cycle, groundwater quality, contamination, and protection. A bibliography lists resources for further study. Full description.

Tropical Twisters explains how hurricanes are created, why they move, and the damage they can do. There is information on the Saffir-Simpson hurricane scale to rate intensity and destructive power; the wind, storm surge and flood damage due to hurricanes; how scientists use the Tropical Rainfall Measuring Mission to understand hurricane rainfall; and the Geostationary and Operational Environmental ... Full description.

In this article, The Why Files examines the possible finding of water ice on our Moon, and the implications for this discovery. The article discusses why scientists believe there is water on the Moon, how a neutron spectrometer picks up the unusual presence of hydrogen on the Moon which could indicate water, what scientists hope to use this water for, and where this water may have come from. A moon ... Full description.

This information is designed to belie the misconception that the capacity of air to hold water vapor is temperature dependent and that air can become saturated with water vapor. The temperature of a cloud droplet or ice crystal will be nearly the same as that of the air, so people imagine that somehow the air was to blame. But, if the other gases of the air were removed, leaving everything else the ... Full description.