The purpose of REEF is to educate and enlist divers in the conservation of marine habitats. The main focus of this site is the Fish Survey Project, in which volunteer scuba divers and snorkelers collect and report information on marine fish populations. The data is accessible through this website, and users can both contribute data they gather and generate reports from the database. A variety of reports ... Full description.

NOAA's Paleoclimatology Program is working with scientists from around the world to study past climate in hopes of achieving a better understanding of the Earth's present and future climate. This site was developed to help educate, inform and highlight the importance of paleoclimate research; as well as to show how paleoclimate research relates to global warming and other important issues of climate ... Full description.

As part of its Water Science for Schools site, the US Geological Survey defines industrial water use and includes several tables and maps showing where and how industry uses water. Students and teachers can look at their state and see 1990 data for how much ground water and how much surface water is used in industry as well as how much of that water is fresh or saline. Full description.

Robowell is an automated process for monitoring selected ground-water-quality properties and constituents. It was developed to provide a cost effective monitoring system that met protocols expected for manual sampling. Users have access to real-time water quality data. There are also links to other water quality sites. Full description.

Users can search this site for information on environmental pollution in the areas where they live. The materials presented here include a pollution ranking that shows regions and companies with the worst environmental records, environmental justice analyses that identify which ethnic or income groups bear more than their share of environmental burdens, and a searchable listing of toxic chemicals. Full description.

Excellent teaching resource from U.S.G.S on water, from basic properties to water quality, inventory of world water sources, how to measure streamflow, components of water use patterns, human impacts, offers a quiz in the interactive Activity Center. Site also available in Spanish, interactive diagram with details of water cycle is available in 50 languages. Provides map and data libraries on who ... Full description.

The Natural Resources Conservation Service (NRCS) installs, operates and maintains an extensive, automated system to collect snowpack and related climatic data in the western United States called SNOTEL (for SNOwpack TELemetry). SNOTEL sensors collect hourly data on temperature, precipitation and snow water equivalent. Data can be displayed as tables or graphs for individual stations, drainage basins ... Full description.

This website, created and maintained by the Natural Resources Conservation Service, contains an interactive map containing climate information for each state. Users can click on states and find information and data for every county in every state. Data includes daily mean temperature, frost free days, growing season, and monthly temperature and precipitation. Users may also download data from this ... Full description.

A global hydrological database is considered essential for research and application-oriented hydrological and climatological projects at global, regional and basin scales. This includes water balance studies, investigation of trends in long-term hydrological time series, coupling of hydrological and meteorological models, flux of fresh water and pollutants into the oceans, and the coupling of runoff ... Full description.

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.