El Nino is a disruption of the ocean-atmosphere system in the tropical Pacific with important climatic consequences around the globe. This NOAA theme page features links to widely distributed information. Includes data, graphics, forecasts, historical perspectives, and in-depth analysis. It is intended to be useful to scientists, administrators, students and the general public. Links include sites ... Full description.

How do scientists gather data to determine whether global temperatures are warming? Past climatic conditions are recorded in tree rings, skeletons of tropical coral reefs, ice cores from glaciers and ice caps, and laminated sediments from lakes and oceans. Site provides an in-depth look at topics significant to climate change. Resources include slide sets, external links, a Climate TimeLine Information ... Full description.

With the explicit mission of saving lives and improving economic efficiency by issuing the best watches, warnings, forecasts and analyses of hazardous tropical weather, this site features continuous watch on tropical cyclones from 15 May in the eastern Pacific and 1 June in the Atlantic through November 30. The Center issues forecasts, watches and warnings within text advisories and graphical products. ... Full description.

Links to real-time and historical oceanographic and weather data collected throughout the Gulf of Maine. Data includes: surface current speed and direction; wave direction height and period; ocean temperature; chlorophyll levels; winds; contaminants monitoring; and more. On-line teaching unit applies data to predict a phytoplankton bloom. Data presented using creative graphics and tables, background ... Full description.