Photo review
Field photographs
Loading thumbnails...
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
Photo review
Loading thumbnails...
GPS ledger
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 |
|---|---|---|---|---|
| HS112 | -21.903073812115 | -157.901526772793 | 9.57 | 0.37966 |
| GPC4 | -21.9030723516017 | -157.901527637227 | 9.68 | 0.18826 |
| GPC4 | -21.903071858545 | -157.901528362345 | 9.72 | 0.14162 |
| GPC4 | -21.9030718698183 | -157.901529585493 | 9.71 | 0.11178 |
| GPC5 | -21.9031363067717 | -157.901539476735 | 9.92 | 0.09374 |
| GPC12 | -21.9031607561467 | -157.901454789487 | 8.58 | 0.07593 |
| HS112-B | -21.903068709625 | -157.901565657363 | 10.67 | 0.07004 |
| GPC3 | -21.9030552096033 | -157.901605305395 | 11.67 | 0.06816 |
| GPC cliff | -21.9029922399 | -157.901570378302 | 10.20 | 0.06795 |
| HS112-C | -21.9030037289467 | -157.901603668433 | 10.30 | 0.069 |
| HS112-D | -21.9030210691083 | -157.90154054761 | 8.46 | 0.06525 |
| HS112-Z | -21.90303047249 | -157.901615164867 | 10.42 | 0.15576 |
| HS112-A | -21.9031408765767 | -157.901599206713 | 9.07 | 1.35081 |
Samples
| Sample | Type | Time CKT | Position | Photos |
|---|---|---|---|---|
| HS112A | Fossilized coral | 2026-06-02 17:32 | -21.903141, -157.901599 9.069 m |
|
| HS112B | Fossilized coral | 2026-06-02 17:11 | -21.903069, -157.901566 10.674 m |
|
| HS112C | Fossilized coral | 2026-06-02 17:21 | -21.903004, -157.901604 10.302 m |
|
| HS112D | Fossilized coral | 2026-06-02 17:24 | -21.903021, -157.901541 8.465 m |
|
| HS112Z | Fossilized coral | , |
|
Raster data
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.
SHA-256 checksums are included in the public manifest for reproducibility.
HS112 has photogrammetry map layers, but profile transects have not been defined yet.
Animated geology plate
Mangaia, Cook Islands
Surveyed 2026-06-02
Explore the Karanganui cliff from one close, low-oblique viewpoint with an approximate local relief measurement.
Selected C shows the steep front cliff face and basal recess. The bare rock rim and matching fixed-rock toe give 5.65 m vertical separation, displayed as approximately 6 m local cliff relief with rough uncertainty about ±1 m. This is not a sea-level elevation or maximum landward terrace height. Rounded rim, shadowed toe, vegetation, shallow water, loose blocks and unresolved control/sample issues limit interpretation. Camera 137 visibly contains both selected endpoints. The original and repaired projects, calibration, pinned controls, geometry, UVs and twelve repaired 8K maps remain preserved. Gray cut sides and backing are artificial presentation surfaces. No age, coral taxon, growth position or sample identity is assigned.
C · Approximately 6 m local cliff relief: field photograph (opens in a new tab)Explore further to begin the guided tour.