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• 15:36, 10 June 2026 Samuel talk contribs created page Measurement:Elevation (Created page with "= Node Elevation Measurement = == 1. Context == In field deployments, it may appear convenient to use smartphone GPS readings to determine the elevation of pipe network nodes. However, GPS-based altitude measurements are often insufficient for infrastructure-grade water systems due to: * low vertical accuracy in consumer devices * atmospheric variation * inconsistent reference datums * drift over time As a result, relying solely on GPS elevation can lead to incorrec...")