Photo review
Field photographs
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Model color relief
Colors distinguish relative surface relief in the model and are paired with hillshade. No validated elevation scale or tidal-datum tie is published here.
Site assets
Photos
GPS ledger
Coordinates and point heights
Each value belongs to one GPS row; it is not a single elevation for the site. The CSV distinguishes local-datum height from receiver altitude.
| ID | Lat | Lon | Point height | V. accuracy |
|---|---|---|---|---|
| GCP1 | -20.1729131005117 | -157.322818861878 | 10.43 | 0.09974 |
| GCP1 | -20.1729129853983 | -157.32281911668 | 10.44 | 0.09232 |
| HS121A | -20.1728187639067 | -157.322904726473 | 9.75 | 0.08452 |
| GCP1 | -20.172912664505 | -157.322819025497 | 10.41 | 0.07661 |
| HS121B | -20.1725068774283 | -157.323134713828 | 4.15 | 0.06652 |
| GCP1 | -20.172430073215 | -157.323090827478 | 3.07 | 0.06568 |
| GCP7 | -20.1721612058917 | -157.322942255045 | 1.65 | 0.065 |
| MAUKE-20260607-HISEAS-318 | -20.1721300700283 | -157.323200006282 | 5.11 | 0.06706 |
| GCP8 | -20.17182903761 | -157.322750840017 | 7.43 | 0.06556 |
Samples
Sample list
| Sample | Type | Time CKT | Position | Photos |
|---|---|---|---|---|
| HS121A | Fossilized coral | 2026-06-07 15:57 | -20.172819, -157.322905 9.755 m |
|
| HS121B | Fossilized coral | 2026-06-07 16:13 | -20.172507, -157.323135 4.152 m |
|
Raster data
Download site rasters
The map’s DEM layer is a hillshade visualization. These links provide the source elevation raster and orthophoto as GeoTIFFs for local analysis. The DEM uses the island-specific datum.
Raw DEM GeoTIFF
HS121_dem.tif · 147.6 MiB
EPSG:4326 · Float32 · 1 band
Download
Orthophoto GeoTIFF
HS121_orthophoto_rgba.tif · 196.8 MiB
EPSG:4326 · Byte · 4 bands
Download
SHA-256 checksums are included in the public manifest for reproducibility.
Topographic profiles pending
HS121 has photogrammetry map layers, but profile transects have not been defined yet.
view_in_ar
Rendered turntable pending
The HS121 mesh output is reserved for a future turntable animation once the mesh assets are present.