Joseph Kerski
To The Nth Degree…and Minute, and Second: Confluence Hunting on Planet Earth
The “reality TV” craze that is sweeping a significant portion of the worldwide television-watching public has nothing on the worldwide “confluence hunting” craze that is sweeping a significant portion of adventurous geographers! Read Joseph Kerski’s reflections here.
Joseph Kerski, posted on
December 8th, 2009
Articles, Earth Observation, Technology, Would You Believe?
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Education Around Earth – Analyzing the Spatial Distribution of 4 Crops with a Geographic Information System
For centuries, maps have stirred imaginations and inspired explorations of the unknown. For the past 40 years, GIS has quietly transformed everyday decision making in academia, government, nonprofit, and in business through the manipulation of satellite imagery, maps, graphs, databases, and multimedia in a decision-making framework. Agriculture was one of the first fields to embrace GIS, applied to everything from precision agriculture to invasive weed eradication to sustainable practices.
Joseph Kerski, posted on
September 23rd, 2009
Agriculture, Articles, Education, Featured Article
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NASA Image of the Day
Orbital Sunrise
The Expedition 24 crew on the International Space Station photographed this image of polar mesospheric clouds illuminated by an orbital sunrise. Polar mesospheric, or noctilucent ("night shining"), clouds usually are seen at twilight, following the setting of the sun below the horizon and darkening of Earth's surface. Occasionally the station's orbital track becomes nearly parallel to Earth's day/night terminator for a time, allowing the clouds to be visible to the crew at times other than the usual twilight because of the station's altitude. This photograph shows polar mesospheric clouds illuminated by the rising, rather than setting, sun at center right. Low clouds on the horizon appear yellow and orange, while higher clouds and aerosols are illuminated a brilliant white. Polar mesospheric clouds appear as light blue ribbons extending across the top of the image. The station was located over the Greek island of Kos in the Aegean Sea (near the southwestern coastline of Turkey) when the image was taken at approximately midnight local time. The orbital complex was tracking northeastward, nearly parallel to the terminator, making it possible to observe an apparent "sunrise" located almost due north. A similar unusual alignment of the ISS orbit track, terminator position and seasonal position of Earth's orbit around the sun allowed for this striking imagery of over the Southern Hemisphere. Image Credit: NASA
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