Wednesday, December 17th 2014
Linda Billings & NASA/JPL Near-Earth Object Program Office
Small asteroids near Earth, with sizes of only about a meter, hit the atmosphere and disintegrate with surprising frequency - around every other week, new data show. Sensor data reveal that these small impact events are frequent and random. A map of these small impact events released by NASA shows the frequency and approximate energy released by bolide events detected from 1994 through 2013.The new data will be extrapolated to estimate more precisely the frequency of impacts by asteroids large enough to cause ground damage.
Monday, December 15th 2014
As winter approaches, much of the United States is beginning to brace for the cold, while some areas have already experienced their coldest day of the year. To give you a better idea of the coldest time of year for your area, the National Data Climatic Center has created a new “Coldest Day of the Year” map.
Thursday, December 11th 2014
This article by Paul Boudreau of Oceans Canada and Jeff McKenna of Gateway Geomatics describes the Coastal and Oceans Information Network (COINAtlantic), a system that “harvests no data, stores no geospatial information in a warehouse or portal,” yet presents geospatial information on the Internet that is published as a Web Map Service (WMS) or in Keyhole Markup Language (KML), both OGC standards.
Wednesday, December 10th 2014
More than 18,000 maps have been distributed by the Defense Logistics Agency Aviation Customer Operations Directorate’s Mapping Customer Operations Division to support the effort to contain the Ebola virus in West Africa.
Monday, December 8th 2014
In the final part of her series, Grethen Peterson answers the question: "How does QGIS perform when it comes to editing data?"
Friday, December 5th 2014
In a new report, Putting Learning on the Map: Visualizing Opportunity in 21st Century Communities, author Lindsey Tepe argues for the greater use of community-level mapping to address if American learners have access to the educational opportunities that lead to success in the 21st century.
Thursday, December 4th 2014
Hurrican Sandy offered a chance for Illinois researchers to try out a new computational method they developed that promises to help municipalities quantify the resilience of their transportation systems to extreme events using only GPS data from taxis.
Wednesday, December 3rd 2014
Directions Magazine invited Mike Delacey, principal at Microdesk, to help celebrate the firm’s 20th anniversary by looking at the past and future of GIS.
Monday, December 1st 2014
In the third part of her series, Boundless' Gretchen Peterson asks how well QGIS performs analysis.
Tuesday, November 25th 2014
In this interview by contributing columnist Catherine Burton, she discusses geospatial career development with Dr. John P. Wilson of the University of Southern California’s Spatial Sciences Institute. Wilson says, "You could argue spatial is just a special case, but special cases take special people."
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