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Problems With The Vertical Reference Frame In Alaska

Problems With The Vertical Reference Frame In Alaska. JOA Surveys Erik Oppegard. Two Problems for Today. Distribution and density of vertical control Time. Where Is this?. State of Wisconsin 295 miles E-W 320 miles N-S 11,090 NAVD88 published stations

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410 views • 27 slides

NGS PSC Approved Concepts for Establishing Local Survey Control Networks for Sentinel Site

NGS PSC Approved Concepts for Establishing Local Survey Control Networks for Sentinel Site . Initial Wetland Surface. Subsided Wetland Surface. Bench Mark with Geodetic Control (NAVD88, etc.). Surface Elevation Table (SET). Tide Gauge. Surface Accretion. Elevation Change. Upland.

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178 views • 5 slides

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Problems With The Vertical Reference Frame In Alaska

NGS PSC Approved Concepts for Establishing Local Survey Control Networks for Sentinel Site