Windows to the Universe is a user-friendly learning system pertaining to the Earth and Space sciences. The objective of this project is to develop an innovative and engaging web site that spans the Earth and Space sciences and includes a rich array of documents, including images, movies, animations, and data sets that explore the Earth and Space sciences and the historical and cultural ties between ... Full description.

This website complements the book "Dr. Art's Guide to Planet Earth" written by Dr. Art Sussman. The website includes animations, lesson plans and experiments that can be used in conjunction with the book. The number of items are continually being increased as a result of collaboration with K-12 teachers and field testing. It also includes the complete text of the first chapter which introduces systems ... Full description.

The purpose of NASA's Earth Observatory is to provide a freely accessible publication on the Internet where the public can obtain new satellite imagery and scientific information about our home planet. The focus is on Earth's climate and environmental change. The site is divided into six main sections: Data and Images, Features, News, Reference, Missions, and Experiments. The Data and Images, Features, ... 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.

This site provides access to streamflow data for USGS (United States Geological Survey) streamflow monitoring sites around the United States. The data can be searched using an interactive map or by state. Most stations report Station Number, Station Name, long-term median flow, present flow stage, present water temperature, and the date and time of the last entry. Most stations also have stream flow ... Full description.

The Nationwide Rivers Inventory (NRI) is a listing of more than 3,400 free-flowing river segments in the United States that are believed to possess one or more "outstandingly remarkable" natural or cultural values judged to be of more than local or regional significance. The NRI is a source of information for statewide river assessments and federal agencies involved with stream-related projects. For ... Full description.

This interactive map and datbase provides access to river and stream flow data for all 50 states in the U.S. Users first select from an alphabetical list of rivers by state, a state list arranged by drainage basin, or an alphabetical list of state gauges. Clicking on any state on the map then brings up the selected data for that state. Data includes class, flow level (cfs), and a relative level (low, ... Full description.

This staff paper from the National Weather Service's Northeast River Forecast Center explains Quantitative Precipitation Forecasting (QPF) and its importance in river forecasting. It includes a primer on areal precipitation, point vs. mean areal precipitation, and a bibliography. Full description.

This web site provides access to the river and stream water flow information that is collected in the United States. Current levels are compared with historical streamflow records for Real-Time (over several hours), Daily, 7-Day Average, and Below Normal streamflows. Colored maps and graphs show the data by different time periods such as day, week, or year. Relative wet and dry conditions are easily ... Full description.

This site contains 17 questions on the topic of groundwater, which covers aquifers and water tables. This is part of the Principles of Earth Science course at the University of South Dakota. Users submit their answers and are provided immediate feedback. Full description.