原文传递 Methods of Practice and Guidelines for Using Survey-Grade Global Navigation Satellite Systems (GNSS) to Establish Vertical Datum in the United States Geological Survey. Chapter 1 of Section D, Field S
题名: Methods of Practice and Guidelines for Using Survey-Grade Global Navigation Satellite Systems (GNSS) to Establish Vertical Datum in the United States Geological Survey. Chapter 1 of Section D, Field S
作者: P. H. Rydlund; B. K. Densmore;
关键词: geodetic surveys, cartographers, survey methods, delineation, global positioning, geospatial control
摘要: Geodetic surveys have evolved through the years to the use of survey-grade (centimeter level) global positioning to perpetuate and post-process vertical datum. The U.S. Geological Survey (USGS) uses Global Navigation Satellite Systems (GNSS) technology to monitor natural hazards, ensure geospatial control for climate and land use change, and gather data necessary for investigative studies related to water, the environment, energy, and ecosystems. Vertical datum is fundamental to a variety of these integrated earth sciences.
总页数: 120p
报告类型: 科技报告
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