About David B. Zilkoski
David B. Zilkoski has worked in the fields of geodesy and surveying for more than 40 years. He was employed by National Geodetic Survey (NGS) from 1974 to 2009. He served as NGS director from October 2005 to January 2009. During his career with NGS, he conducted applied GPS research to evaluate and develop guidelines for using new technology to generate geospatial products. Based on instrument testing, he developed and verified new specifications and procedures to estimate classically derived, as well as GPS-derived, orthometric heights.
Now retired from government service, as a consultant he provides technical guidance on GNSS surveys; computes crustal movement rates using GPS and leveling data; and leads training sessions on guidelines for estimating GPS-derived heights, procedures for performing leveling network adjustments, the use of ArcGIS for analyses of adjustment data and results, and the proper procedures to follow when estimating crustal movement rates using geodetic leveling data. Contact him at dzilkoski@gpsworld.com.
Posts by David B. Zilkoski
This column highlights activities associated with the Transportation Research Board’s ADK70 Standing Committee on Geospatial Data Acquisition Technologies. Its most recent committee was held on July 29-31, 2024, in Washington, D.C. Read more»
Dave Zilkoski highlights the products on NGS’s Alpha Preliminary Products site. The site is for users to obtain a better understanding of the products that will be distributed as part of the new, modernized National Spatial Reference System (NSRS). Read more»
NGS announced the release of a beta version of a new NOAA CORS Network (NCN) Station Web Page. This article will describe some features of the new beta site. Read more»
Michigan State University (MSU) has been awarded an NOAA FY 23 Geospatial Modeling Competition Award. MSU will create geodesy curriculums to help address the geodesy crisis and more. Read more»
NGS Geospatial Modeling awardee, Oregon State University, created geodesy curriculums designed to help address the geodesy crisis. Read more»
The NOAA has awarded Scripps Institution of Oceanography (SIO) and The Ohio State University (OSU) grants to develop models to address what NGS denotes as the Intra-Frame Deformation Model (IFDM). Read more»
GPS World contributor, Dave Zilkoski, highlights the research proposal from The Ohio State University that earned them a geospatial award from the National Oceanic and Atmospheric Administration (NOAA). Read more»
NGS has announced that users have until February 29, 2024, to submit data for the initial National Spatial Reference System (NSRS) modernization rollout. Read more»
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