Category Archives: Surveying
Maximizing the Sun
Solar energy grows in part due to aerial imaging and surveying. Solar power is booming in the United States. “Every three weeks,” President Obama said in his 2015 State of the Union address, “we bring online as much solar power as we did in all of 2008.” Geospatial technologies—especially remote sensing and surveying—play an important...
Single Transformation with ECEF
We at xyHt think this topic is one surveyors should be talking about. Instead of placing this reader’s letter to us as a comment under Dr. Ghilani’s article (linked below), we are making it a post itself to encourage discussion underneath. Editor Gavin Schrock, PLS, started us off, below. Professor Ghiliani’s article, Transformation of Observations...
Boundary Lines: When a Fence Appears in the Middle of your Street
In early July 2014, the residents at the end of Eastside Drive, a tranquil community of lakeside homeowners in Cobb County, Georgia, were perplexed to see workers installing a fence, ostensibly down the middle of their paved road. When the fence was completed, and where homeowners once enjoyed the ability to back up their vehicles...
Transformation of Observations, Part 3
Above: Typical and low-distortion map projections. Using a Project Factor In Part 1 of this series of articles (September 2014 issue), I explained how to transform surface observations into a geocentric coordinate system so that it could be compared to GNSS baseline vectors. In Part 2 (December 2014) I explained how the creation of a...
ASPRS Engages States
Above: State Licensure Map – Authoritative Imagery ASPRS Launches New Initiative to Engage States as They Consider Regulating Photogrammetry under Existing Surveying Laws At the American Society for Photogrammetry and Remote Sensing’s (ASPRS) November 2014 fall conference in Denver, Colorado, ASPRS announced its “Licensure Plan for the State Licensing of Photogrammetrists” initiative. ASPRS recognizes an immediate...
Infrastructure Gets a C from COGO
Former governor says U.S. spatial data leadership has slipped. The nation’s spatial data infrastructure gets a barely passing grade of “C” indicating it “requires attention,” former Governor Jim Geringer (R-WY) reported on February 23. Speaking at a news conference at the National Press Club in Washington, Geringer said the national spatial data infrastructure (NSDI), a...
