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 |
|---|---|---|---|---|
| HS123B | -19.8705168794567 | -157.68084119739 | 5.13 | 0.06615 |
| HS123A | -19.87047147394 | -157.68058148081 | 6.67 | 0.06359 |
| GCP8 | -19.87047148014 | -157.680581363705 | 6.68 | 0.06329 |
| GCP12 | -19.87051140963 | -157.68093082387 | 5.81 | 0.06213 |
| GCP3 | -19.8711402626217 | -157.680577073857 | 6.43 | 0.06484 |
| GCP1 | -19.87123110813 | -157.680440403243 | 0.55 | 0.0667 |
| Modern waterline on reef flat | -19.871305010275 | -157.68047787767 | -0.12 | 0.16512 |
| HS123C elevation see note | -19.8712211437633 | -157.680421414583 | 0.60 | 0.063768 |
| HS123D | -19.8714523016233 | -157.680478706193 | 0.03 | 0.07499 |
| HS123E | -19.8713031668583 | -157.680593000857 | 7.28 | 0.06444 |
| GCP4 | -19.8713194014367 | -157.680926223767 | 6.28 | 0.0701 |
| GCP7 | -19.8714566903783 | -157.68063666745 | 6.78 | 0.06432 |
Samples
Sample list
| Sample | Type | Time CKT | Position | Photos |
|---|---|---|---|---|
| HS123A | Fossilized coral | 2026-06-10 11:40 | -19.870471, -157.680581 6.669 m |
|
| HS123B | Fossilized coral | 2026-06-10 11:30 | -19.870517, -157.680841 5.131 m |
|
| HS123C | Fossilized coral | 2026-06-10 12:18 | -19.871221, -157.680421 0.598 m |
|
| HS123D | Fossilized coral | 2026-06-10 12:24 | -19.871452, -157.680479 0.035 m |
|
| HS123E | Fossilized coral | 2026-06-10 12:29 | -19.871303, -157.680593 7.281 m |
|
| HS123F | Fossilized coral | 2026-06-10 13:24 | -19.870313, -157.684305 6.460 m |
|
| HS123G | Fossilized coral | 2026-06-10 13:30 | -19.870321, -157.684271 7.336 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
HS123_dem.tif · 467.9 MiB
EPSG:4326 · Float32 · 1 band
Download
Orthophoto GeoTIFF
HS123_orthophoto_rgba.tif · 589.1 MiB
EPSG:4326 · Byte · 4 bands
Download
SHA-256 checksums are included in the public manifest for reproducibility.
Topographic profiles pending
HS123 has photogrammetry map layers, but profile transects have not been defined yet.
Animated geology plate
HS123: Te Rotonui
Mitiaro, Cook Islands
Surveyed 2026-06-10
Mode
Turntable
00:00 / 00:00
0.00°
Rendered turntable
The HS123 turntable animation is available.