Nature · Nepal · sharp summit with softened raster geometry
Ama Dablam: terrain elevation and local relief
Ama Dablam uses an approximately 6,661-meter surface estimate in EGM2008 from Copernicus GLO-30. The bounded terrain section has about 2,665 meters of local relief above its lowest sampled point. Published summit surveys are separate references.
≈ 6,661 m
Data-derived estimate- Measurement
- Highest sampled surface in the documented Copernicus terrain section · EGM2008
- Subject or version
- Nepal · sharp summit with softened raster geometry
- In feet, rounded
- 21,854.9 ft (1 ft = 0.3048 m)
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Terrain boundary, base and datum
- Vertical reference
- EGM2008. Published surveys are separate; no datum conversion is applied.
- Highest sampled surface
- 6661.4 m at 27.861667°, 86.860833°.
- Local base
- 3996.2 m at 27.866667°, 86.805833°. Lowest sampled point within this bounded terrain section.
- Section bounds in WGS84-G1150
- West 86.805417°, east 86.917083°; south 27.829861°, north 27.892917°.
- View and scale
- Orthographic map section facing north. Equal horizontal and vertical map scales. Approximate grid spacing: 27.4 m east-west and 30.8 m north-south. Lower and surrounding terrain omitted.
produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved
A little more perspective
Nepal’s Department of Tourism lists Ama Dablam at 6,814 meters in its 2025 mountaineering facts publication. The bounded Copernicus surface reaches approximately 6,661 meters in EGM2008. This pronounced difference remains visible because a coarse surface grid does not preserve the narrow summit at survey precision. The section’s lowest sample defines its local-relief base; a climber’s route, camp and accumulated ascent do not define that base.
The local-relief view subtracts the lowest sampled point in this section: 3996.2 meters at 27.866667° latitude, 86.805833° longitude. This produces about 2,665 meters of relief within the stated boundary. It is not a universal mountain base, a route’s total ascent, or topographic prominence.
The rendered surface uses the public 2021 Copernicus release, primarily based on TanDEM-X observations from 2011–2015 with infill from other sources. It is a surface model rather than a current bare-earth survey. Neutral shading explains the geometry without claiming a snow season or photographic ground texture. No datum conversion or summit correction is applied.
Quick facts
Ama Dablam uses an approximately 6,661-meter surface estimate in EGM2008 from Copernicus GLO-30. The bounded terrain section has about 2,665 meters of local relief above its lowest sampled point. Published summit surveys are separate references.
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Sources and measurement notes
- Nepal Department of Tourism: Mountaineering in Nepal, Facts and Figures 2025 (printed p. 470)
- Copernicus DEM: dataset definition, datums and attribution
- Public Copernicus GLO-30 release documentation
- Wikidata: summit-area identity and initial coordinate
- Copernicus source terrain tile 1 (GeoTIFF)
The 6,814-meter tourism reference is retained beside a substantially lower sampled summit. The terrain is not stretched to hide that difference.
Source review recorded . Maintained by Ishan Karunaratne. Suggest a correction with a source and the exact measurement being compared.