Measuring the World
Surveying the Highest Peak, Part 3: GPS, Geoids, Snow, and the Modern Height of Everest
Why modern Everest measurements depend on GNSS, gravity, snow depth, reference frames, and a clear definition of height.
From the Index
Tag: Series: Surveying the Highest Peak
A connected three-part story of surveying Mount Everest. Reading order: Part 1 (post 705), Part 2 (post 703), Part 3 (post 706).
Measuring the World
Surveying the Highest Peak, Part 2: How Peak XV Became Mount Everest
The distant observations, calculations, corrections, and people behind the first accepted height of the world’s highest mountain.
Exploration & Places
Surveying the Highest Peak, Part 1: Building the Great Trigonometrical Survey
How baselines, giant theodolites, triangulation, and an immense field organization carried a geodetic network across India.