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GeoEye-1, designed and built by General Dynamics Advanced Information Systems, is the world's highest resolution commercial imaging satellite. Designed to take color images of the Earth from 423 miles (681 kilometers) in space and moving at a speed of about four-and-a-half miles (seven kilometers) per second, the satellite will make 15 earth orbits per day and collect imagery with its ITT-built imaging system that can distinguish objects on the Earth's surface as small as 0.41-meters (16 inches) in size in the panchromatic (black and white) mode. The 4,300-pound satellite will also be able to collect multispectral or color imagery at 1.65-meter ground resolution. While the satellite will be able to collect imagery at 0.41-meters, GeoEye's operating license from NOAA requires re-sampling the imagery to half-meter resolution for all customers not explicitly granted a waiver by the U.S. Government.
more from launch.geoeye.com
EX Many extremes and their associated impacts are now changing. For example, in recent decades most of North America has been experiencing more unusually hot days and nights, fewer unusually cold days and nights, and fewer frost days. Heavy downpours have become more frequent and intense. Droughts are becoming more severe in some regions, though there are no clear trends for North America as a whole. The power and frequency of Atlantic hurricanes have increased substantially in recent decades, though North American mainland land-falling hurricanes do not appear to have increased over the past century. Outside the tropics, storm tracks are shifting northward and the strongest storms are becoming even stronger.
more from www.climatescience.gov
In northern Greenland, a part of the Arctic that had seemed immune from global warming, new satellite images show a growing giant crack and an 11-square-mile chunk of ice hemorrhaging off a major glacier, scientists said Thursday.
more from www.huffingtonpost.com
Data from the UK Met Office shows that temperatures in the first half of the year have been more than 0.1 Celsius cooler than any year since 2000. The principal reason is La Nina, part of the natural cycle that also includes El Nino, which cools the globe. Even so, 2008 is set to be about the 10th warmest year since 1850, and Met Office scientists say temperatures will rise again as La Nina conditions ease.
more from news.bbc.co.uk
Eight crazy experiments bold enough to change the world.
more from dsc.discovery.com
"This guide is the product of a three-day workshop, Climate and Weather Literacy: Using the AAAS Project 2061 Science Literacy Research to Develop Weather and Climate Literacy Framework, in April 2007."
more from www.climate.noaa.gov
The Climate Change Collection is a suite of science education web-based resources covering natural climate dynamics as well as human impacts on the climate system.
more from serc.carleton.edu
The Discovery Channel has developed a series of tools to help visualize the impact of global climate changes around the world.
more from dsc.discovery.com
Climate change is already affecting our lives and the places we live, and has the potential to dramatically impact the lives of future generations. The Nature Conservancy is joining with policy makers, community members, businesses, scientists, industry leaders and others to slow the pace of climate change. We work to reduce the accumulation of heat-trapping gases in the atmosphere and help natural areas adjust to the impacts of climate change.
more from www.nature.org
Dennis Richards (95)
Dave Truss (40)
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