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Publicado el: 2016-02-10
Tiempo de estudio aproximado: 0 - .25 h
Incluye sonido: yes
Áreas temáticas
Geospatial
Descripción:
Aimed at surveyors and GIS professionals who use geodetic-quality GNSS equipment to determine positions for land planning, coastal monitoring and other purposes, this video covers best practices for reducing errors in the areas of: 1. location and environment, 2. equipment setup and 3. observation times and accuracy checks.
Objetivos:
- List common sources of error in GNSS data collection
- Describe sources of error related to equipment and set-up procedures
- Describe optimal site selection and environmental criteria
- Understand the relationship between site occupation time and accuracy of results
Palabras clave
geodesy, mapping, GIS, surveying, GPS, topography, Geodetic Surveying, NSRS, national spatial reference system, Global Navigation Satellite Systems, GNSS, multipath interference, satellite geometry, Position Dilution of Precision, PDOP, Space Weather Prediction Center, geomagnetic storm warnings, level vial, fixed height poles, antenna reference point, ARP, vertical antenna height, slant height, fixed-height tripod, range pole, electronic phase center, NGS, national geodetic survey, real-time positioning, RTK, geodetic control mark, Online Positioning User Service, OPUS