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 |
|---|---|---|---|---|
| HS110 shoreline, in surf | -21.89141864329 | -157.914977612875 | 0.12 | 0.13403 |
| HS110 water level | -21.89141860375 | -157.914977657192 | 0.01 | 0.09512 |
| GPC3 | -21.89142109355 | -157.915365703025 | 0.53 | 1.12474 |
| GCP3 | -21.8914207415333 | -157.915365226623 | 0.55 | 1.22609 |
| GCP7 | -21.8914284242617 | -157.915257565352 | 0.96 | 1.50384 |
| GCP7 | -21.8914283402267 | -157.915257216088 | 0.95 | 1.5838 |
| GCP5 | -21.8914346011233 | -157.915105367285 | 0.78 | 1.92669 |
| GCP5 | -21.8914344721667 | -157.915105031498 | 0.72 | 1.99274 |
| HS110-B | -21.891460650905 | -157.91512106962 | -0.81 | 1.51625 |
| HS110-B | -21.89145721954 | -157.915117933525 | -0.64 | 0.95344 |
| GCP2 | -21.8914507700217 | -157.91497314437 | 0.29 | 0.4396 |
| GCP12 float | -21.8914499404683 | -157.914978710517 | 0.55 | 0.23046 |
| Hard ground just seaward of sandy beach | -21.8913825716433 | -157.91497405717 | -0.06 | 0.13481 |
| GCP1 | -21.8916118156767 | -157.914929450867 | 1.80 | 0.34634 |
| GCP1 | -21.8916117692067 | -157.914928544032 | 1.79 | 0.60414 |
| HS110C | -21.891659191355 | -157.915001098162 | 2.20 | 1.9893 |
Samples
Sample list
| Sample | Type | Time CKT | Position | Photos |
|---|---|---|---|---|
| HS110A | Fossilized coral | , |
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| HS110B | Fossilized coral | 2026-06-02 10:13 | -21.891461, -157.915121 -0.807 m |
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| HS110C | Fossilized coral | 2026-06-02 10:55 | -21.891659, -157.915001 2.203 m |
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| HS110D | Fossilized coral | , |
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| HS110E | Fossilized coral | , |
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| HS110F | Fossilized coral | , |
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| HS110G | Fossilized coral | , |
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| HS110H | Fossilized coral | , |
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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
HS110_dem.tif · 6.6 MiB
EPSG:4326 · Float32 · 1 band
Download
Orthophoto GeoTIFF
HS110_orthophoto_rgba.tif · 30.4 MiB
EPSG:4326 · Byte · 4 bands
Download
SHA-256 checksums are included in the public manifest for reproducibility.
Topographic profiles pending
HS110 has photogrammetry map layers, but profile transects have not been defined yet.
Animated geology plate
HS110: Araoa
Mangaia, Cook Islands
Surveyed 2026-06-02
HS110: Araoa
Explore Araoa's coastal cliff, Last Interglacial reef framework, and potential Holocene encrusting coral.
Field notes
Based on Araoa field observations of 2 June 2026 and Blake’s target selections on 13 October 2026. The selected wall framework is labelled Last Interglacial reef framework. The lower encrusting coral is interpreted as potentially Holocene; its age remains tentative. Local presentation coordinates are not a sea-level datum. The flat block walls and upper cut are artificial display surfaces.
Stops
Explore further to begin the guided tour.