This article discusses how scientists' efforts to explain paleoclimate evidence have produced …
This article discusses how scientists' efforts to explain paleoclimate evidence have produced some of the most significant theories of how the Earth's climate system works. Topics include Earth's shifting orbit, and evidence of ancient climates preserved in geologic strata, ocean cores, coninental ice sheets, and tree rings.
This NASA site features color satellite photographs of the Gulf of Mexico …
This NASA site features color satellite photographs of the Gulf of Mexico dead zone. The site shows pictures of the Gulf of Mexico region in natural colors as well as on a scale of different chlorophyll concentrations. The site also has a short explanation of the Gulf of Mexico eutrophication.
Much like El Nino, the North Atlantic Oscillation (NAO) varies in a …
Much like El Nino, the North Atlantic Oscillation (NAO) varies in a rhythmic pattern from decade to decade. The NAO is the relationship between a high-pressure system over the Azores Islands and a low-pressure system over Iceland. This site uses text, photographs, and maps to explain what the NAO is and how it affects weather in Europe, the United States, and as far away as the Middle East.
Visitors to this site can view satellite imagery and read an account …
Visitors to this site can view satellite imagery and read an account of how remote sensing was employed to evaluate the extent of flooding and sediment load in rivers on the coastal plain of North Carolina as a result of Hurricane Floyd in September, 1999. This feature is part of NASA's Earth Observatory, a publication that focuses on Earth's climate and environmental change.
This current feature from NASA's Earth Observatory focuses on the use of …
This current feature from NASA's Earth Observatory focuses on the use of a new type of vegetation measurement called the leaf area index (LAI). The four page article describes how trees moderate climate, and how scientists think the LAI will be useful in modeling global climate change. The text is written for a general audience and includes images showing what LAI data actually looks like. When the glossary is turned on, links are provided to definitions for a number of scientific terms.
This page from NASA's Earth Observatory shows images of visible tracks made …
This page from NASA's Earth Observatory shows images of visible tracks made in the Earth's atmosphere from clouds forming around ship exhaust particles. One of these images shows the relative sizes of the particles, and the text relates the relative sizes to the relative brightness of the clouds that are formed.
Vortices of water, called "eddies," form off the northwestern coast of North …
Vortices of water, called "eddies," form off the northwestern coast of North America in the winter, and are particularly large during El Nino winters. Users can read and view satellite imagery which explains how these eddies carry nutrient-rich water offshore, providing nourishment for phytoplankton, microscopic plants which form the foundation of the marine food chain. This is part of NASA's Earth Observatory, a collection of publications featuring satellite imagery and information about Earth.
Vortices of water, called "eddies," form off the northwestern coast of North …
Vortices of water, called "eddies," form off the northwestern coast of North America in the winter, and are particularly large during El Nino winters. Users can read and view satellite imagery which explains how these eddies carry nutrient-rich water offshore, providing nourishment for phytoplankton, microscopic plants which form the foundation of the marine food chain. This is part of NASA's Earth Observatory, a collection of publications featuring satellite imagery and information about Earth.
Major volcanic eruptions alter the Earth's radiative balance, as volcanic ash and …
Major volcanic eruptions alter the Earth's radiative balance, as volcanic ash and gas clouds absorb terrestrial radiation and scatter a significant amount of the incoming solar radiation, an effect known as "radiative forcing" that can last from two to three years following a volcanic eruption. This results in reduced temperatures in the troposphere, and changes in atmospheric circulation patterns. This site uses text, photographs, and links to related sites to describe volcano-induced climate change.
Visitors to this site can study a discussion of the need for …
Visitors to this site can study a discussion of the need for computer modeling to examine the terrestrial biosphere. Emphasis is placed on integration of multiple measurements across varying scales of time and space into a single tool for visualizing a system, and its use in predicting future changes. Links to a glossary are embedded in the text.
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