Here the 20-year seasonal surface temperature trend for the autumn is shown over the Arctic region. This animation shows the warming and cooling regions in steps from the regions of least change to the areas of greatest change. Blue hues indicate cooling regions; red hues depict warming. Light regions indicate less change while darker regions indicate more. The temperature scale used ranges from -0.4 to +0.4 degrees Celsius in increments of .02 degrees. (See color bar below)

Here the 20-year seasonal surface temperature trend for the spring is shown over the Arctic region. This animation shows the warming and cooling regions in steps from the regions of least change to the areas of greatest change. Blue hues indicate cooling regions; red hues depict warming. Light regions indicate less change while darker regions indicate more. The temperature scale used ranges from -0.4 to +0.4 degrees Celsius in increments of .02 degrees. (See color bar below)

Here the 20-year seasonal surface temperature trend for the summer is shown over the Arctic region. This animation shows the warming and cooling regions in steps from the regions of least change to the areas of greatest change. Blue hues indicate cooling regions; red hues depict warming. Light regions indicate less change while darker regions indicate more. The temperature scale used ranges from -0.4 to +0.4 degrees Celsius in increments of .02 degrees. (See color bar below)

Here the 20-year surface temperature trend is shown over the Arctic region. This animation shows the warming and cooling regions in steps from the regions of least change to the areas of greatest change. Blue hues indicate cooling regions; red hues depict warming. Light regions indicate less change while darker regions indicate more. The temperature scale used ranges from -0.4 to +0.4 degrees Celsius in increments of .02 degrees. (See color bar below)

Here the 20-year seasonal surface temperature trend for the winter is shown over the Arctic region. This animation shows the warming and cooling regions in steps from the regions of least change to the areas of greatest change. Blue hues indicate cooling regions; red hues depict warming. Light regions indicate less change while darker regions indicate more. The temperature scale used ranges from -0.4 to +0.4 degrees Celsius in increments of .02 degrees. (See color bar below)

This image shows the 22-year surface temperature trend over the Arctic region. Blue hues indicate areas that are cooling; gold hues depict areas that are warming. Lighter colors indicate less change while darker colors indicate more. The temperature scale steps from zero degrees Celsius in increments of .02 degrees. (See color bar below) The data ranges from -0.162 to +0.487 degrees Celsius.

ASTER images are being used in an ambitious international project to map the extent of the worlds glaciers and the rate at which they are changing. High-resolution ASTER images make it possible to distinguish and track small features on glacier surfaces. Images presented by Rick Wessels from Arizona State University showing details of snow and ice of glaciers are contributing to the Global Land Ice Measurements from Space (GLIMS) project, a global consortium led by the U.S. Geological Survey.

Flying over an ASTER data set of the Pine Island Glacier crack. The dataset was taken back in December 12th, of 2000.

Flying over an ASTER data set of the Pine Island Glacier crack. The dataset was taken back in December 12th, of 2000.

In this web-based, interactive story, Tutangiaq (Too-tang-geye-ack - nicknamed 2T), a Canada Goose, flies across Alaska looking for his family. As he flies, he tells children about the fascinating 49th state. Children learn how Alaska was purchased from the Russians, and other facts about the state. They can also compare the size of Alaska to other states. 2T takes a flight across the volcanic chain in Alaska and helps the students to interactively explore how scientists monitor volcanoes from satellite images in near-real time. At the coast, the bird also meets his Walrus friend who shows him how the sea ice edge has receded and gives an example of an adverse effect on marine life. Finally, 2T arrives in Fairbanks where children use satellite imagery to help 2T find and unite with his family.

This lesson is designed to help students gain knowledge in accessing current weather data and in using the MY NASA DATA Live Access Server (LAS) to specify and download historical satellite data.

A close-up view of a field of snow dunes, then pulling back to show regions of the dunes across the continent.

Antarctica: Allen Hills fly over: RADARSAT lets Scientist see the frozen continent.

Using the RADARSAT dataset of Antarctica, Scientist can visit the Dry Valleys, a cold and desert like area.

Animation fly-over of the Fimbul Ice Shelf

Using RADARSAT data of Antarctica, one can see the abandoned Russian station that is on top of a frozen Lake Vostok.

In 1978, scientists predicted that global warming would lead to a disintegration of Antarctic Peninsula ice shelves. Space-borne data indicate that this prediction may be coming true. In these before and after images, note the dramatic change in the apparent shoreline. Scientists captured the first image using the ERS-1 satellite in 1992. As seen in the second image, collected by RADARSAT in 1997, huge changes have come to the coastline. In 1995, a 2000 square kilometer section of the ice shelf collapsed into thousands of fragments that eventually drifted out to sea. Researchers are still debating why the ice shelf broke up so dramatically, and what significance the break up has for interpreting local versus global changes to the environment. Theories include a series of warmer than usual summers which may have caused high levels of surface melting, or an overall climate warming trend.

This animation is a set up animation for editing in post production. It was used with images of the Larsen Ice Shelf in animation #1400.

Morph animation of 20,000 year old Antarctica to the present