We came across information on the 5th International Symposium on Digital Earth that will take place in the summer of 2007 in San Francisco. The call for papers should be coming out soon and abstracts will be due in June. In addition, there is information on the Inaugural Digital Earth Summit on Sustainability that will take place in August in New Zealand
Researchers at the University of New Hampshire, in conjunction with scientists at NASA, have been using remote sensing techniques to identify prehistoric Maya sites in Central America. The dense tropical rain forests in the region make the identification of sites from the air or on the ground very difficult. By analyzing high-resolution imagery and NASA’s Airborne Synthetic Aperture Radar, the researchers were able to identify a specificÃ‚Â reflectivity in the vegetation around known archaeological sites in the area, and used that “signature” to identify areas whereÃ‚Â previously unrecorded sites might be located. Field-testing in 2004 demonstrated the utility of this technique, when the archaeologists identified a number of Mayan sites. More details can be found in this article from Newswise.com
Via Archaeology Magazine
The United Nations Environment Programme recently published One Planet, Many People: Atlas of Our Changing Environment, using 30 years of before-and-after Landsat images for 80 sites around the world to provide “insights into the many ways people around the world have changed, and continue to change, the environment.”
It is hardcover, and looks really nice, but at $150 US and $20 US to ship to Europe, $30 US elsewhere, I don’t think I can afford it. Still, it would be a great addition to many libraries.
Tim Warner here at WVU just forwarded us the good news that Landsat 5 has resumed acquisition operations for the continental US and international data acquisition will be coming back online in the next few weeks. Engineers were able to make adjustments to Landsat 5′s solar array to give it enough power to continue its mission. This is definitely good news for the remote sensing community.
The press release is available at the Landsat Mission website
The Japanese Advanced Land Observation Satellite (nicknamed “Daichi’) was launched on January 24th, after two delays for technical problems. According to the Japan Aerospace Exploration Agency (JAXA), The satellite will be used for mapping and to monitor disasters and environmental change around the world.
I have forgotten to blog this for 3 straight days, and I will wait until we receive our copy before I say too much, but on Jan 12, Leica Geosystems announced version 9.0 of their software suite including Imagine, LPS, and the new Virtual Explorer which included the following improvements: Continue reading
According to the USGS’s Landsat Program website, testing of Landsat 5′s solar array began on January 3rd and will continue until January 5th. Information related to the testing will be posted on the site.
On Tuesday, the USGS issued a press release that they are now offering orthorectified Landsat 4, 5 and 7 free for download from the Global Visualization Viewer (GloVis) or from Earth Explorer. For those of us who had the task of having to orthorectify satellite images ourselves, this will be a great new time-saving data source.
Just before Christmas, the European Space Agency issued a press release reviewing the use of geospatial technologies and data in the aftermath of the Indian Ocean tsunami in December 2004 and discussed some of the ways in which these technologies are aiding in regional redevelopment and rebuilding
An interesting article from The Daily Times (Salisbury, Maryland) discusses the impact of rising sea levels on the Maryland coastline, including the submergence of numerous small islands and talks briefly about a joint project between the USGS and Maryland DNR that mapped portions of the coastline using highly-accurate LIDAR technology.