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TAG: National Geodetic Survey

New NGS study examines GIS surveys for airports

August 14, 2020By
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By Irv Leveson A new study for the National Geodetic Survey (NGS) reviews and validates airport surveys from a safety perspective. The study, “Protecting Against Airport Obstructions: Socio-Economic Study of the NGS Aeronautical Survey Program,” is by Irv Leveson and the staff of ARCBridge Consulting and Training Inc. Goals of the scoping study are to: provide a better understanding of the... read more

Blue Marble releases 2019 Geographic Calculator

December 10, 2018By
Logo: Geographic Calculator 2019

Blue Marble Geographics has launched its 2019 Geographic Calculator, which features a universal copy and paste function, a new angular unit conversion tool, support for NADCON 5.0 and updated seismic survey conversion functionality. According to Blue Marble, the foundation of the Geographic Calculator’s geodetic data processing functionality is the embedded GeoCalc datasource, which is continually revised and improved with updates... read more

Synergizing smartphones’ onboard GPS capability with KML files

February 29, 2016By

At Caltrans District 7 in Los Angeles, we use the onboard GPS capability of smartphones to navigate in real time to the locations of proposed aerial targets and National Geodetic Survey (NGS) control stations. read more

Enhanced Sea-level Prediction System to Improve Coastal Flooding Plans

June 5, 2014By
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As the Gulf Coast begins another hurricane season, researchers with the Conrad Blucher Institute for Surveying and Science (CBI) at Texas A&M University-Corpus Christi will be improving the data collection system to allow for more accurate planning and predictions for flooding and sea-level rise. CBI has been awarded $1.35 million to enhance the National Spatial Reference System that helps model... read more