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How fragile are the networks we depend on for geomatics?
ACSM Bulletin
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One of the more interesting aspects of the LightSquared drama has been the eyeopening awareness of the Global Positioning System's fragility. The potential repercussions of degraded or blocked signals has been prominent in the news, and has fostered a backlash. Hard to say if this chapter is completely over yet, but the defense of the accuracy and autonomy of the network has certainly highlighted its importance for the economy and security.
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NSPS annual Lobby Day scheduled for Sept. 27!
NSPS
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NSPS members from across the country will gather in Washington, D.C., on Sept. 27 to participate in the annual group effort to get across to national legislators and their staffs the viewpoint of the professional surveyor.
Among the topics that will be discussed is the LightSquared issue, which consumed a tremendous amount of time and effort during the past year and a half. The FCC has yet to finalize the vacation of its Conditional Waiver Order to LightSquared, and as a result high-precision GPS users (including surveyors) are left in limbo.
NSPS Lobby Day participants will urge Congress to finalize its proposals regarding LightSquared, and to develop a plan to test and analyze the effects that terrestrial operations (similar to what LightSquared proposed) would have on high-precision GPS receivers. Additionally, Congress and the FCC should develop interference standards.
A link to the packet containing information about all of the NSPS Lobby Day issues can be found on the NSPS website home page; www.nsps.us.com.
Compassing the future
Point of Beginning
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Every instrument in Abraham Lincoln's National Museum of Surveying has a story. The story behind this compass is the tale of two immigrants — William Young, the compass maker, and John Lutz Mansfield, the surveyor. On display at ALNMoS for a six month period, the compass shows how Mansfield, Ill., came to be, and how Young created the tool that forged many American towns.
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Defining the geospatial profession
Professional Surveyor
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In 2004, the U.S. Department of Labor identified geospatial technology as one of the top three emerging technologies for the 21st century workforce. According to Bureau of Labor Statistics, the projected employment demand for surveyors over the current decade is 24,200 new jobs, representing a growth rate of 28 percent.
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Military surveying in Afghanistan
The American Surveyor
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Historically, Army surveyors have supported three distinct missions: mapping, construction and field artillery. While there's not much call for positioning artillery in the civilian world, professional surveyors would be familiar with the work of military topographic/geodetic and construction surveyors.
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New resources for GIS job seekers
Directions Magazine
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If you took a break from your job search over the summer, September might be the right time to jump back into the fray. Directions Magazine Executive Editor Adena Schutzberg has collected some new resources that can help GIS job seekers in their quest.
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Corpus Christi, Texas steps into 3-D GeoDesign and emerges a winner
Geoconnexion
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When the Corpus Christi Downtown Management District decided to use 3-D visualization to help promote and plan its revitalization program, it probably did not know that it would turn into a case study for one of the most significant movements in city planning today, GeoDesign. The Corpus Christi Association of Realtors obtained a $5,000 National Association of Realtor's Smart Growth Action Grant for the DMD.
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Exploiting the Galileo E5 wideband signal
Inside GNSS
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Single-frequency positioning can undoubtedly be improved with the deployment of new GNSS systems and the accompanying availability of new signals. Among various innovations, the Galileo E5 broadband signal deserves special attention. Its unique features, including the AltBOC modulation scheme, will drastically boost code range precision, both in terms of reduced code noise as well as with respect to multipath.
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Odd things happen when you chop up cities and stack them sideways
NPR
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From Robert Krulwich: I don't know if it's fair to do this to a city, but let's start with Berlin. Here's Berlin as you'd see it from above. ...
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The top 20 data visualization tools
.net
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From Brian Suda: One of the most common questions I get asked is how to get started with data visualizations. Beyond following blogs, you need to practice — and to practice, you need to understand the tools available. In this article, I want to introduce you to 20 different tools for creating visualizations: from simple charts to complex graphs, maps and infographics. Almost everything here is available for free, and some you have probably installed already.
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