Satellite-Derived Bathymetry (SDB) for the Turks and Caicos shallow water areas (Allen Coral Atlas)

Satellite-Derived Bathymetry (SDB) is a technique that allows to create nautical charts and bathymetric maps of shallow waters and coastal regions using satellite imagery. This dataset comprises a subset of the Allen Coral Atlas global SDB dataset for areas up to 15 m depth. The bathymetry maps are created at a resolution of 10 m using the Google Earth Engine (GEE) Sentinel-2 surface reflectance dataset. Sentinel-2 satellite images with minimal cloud coverage and turbid water over 12 months are selected. The input dataset is aggregated into a single clean mosaic output using the median depth value over 12 months.

The extent of this subset is limited to the Turks and Caicos Island, the global dataset is available for download at:

Data and Resources

Additional Info

Field Value
Last Updated July 29, 2023, 08:36 (UTC)
Created April 13, 2021, 19:11 (UTC)
Region TC
Language eng
Topic Category Elevation; height above or below sea level
Temporal Extent Start 2018-01-01
Temporal Extent End 2020-12-31
Dataset Reference Date 2020
Lineage This is a subset of the Allen Coral Atlas global bathymetry dataset. Mapping methodology and a full list of contributors are available at Further guidance on licensing and citation can be found at
West Longitude -72.48820
South Latitude 21.04492
East Longitude -70.94669
North Latitude 21.97917
Spatial Reference System WGS84
Responsible Organisation Name Allen Coral Atlas
Contact Mail Address visit:
Responsible Party Role resource provider, custodian, owner, user, distributor, originator, point of contact, processor, publisher and author
Access Limitations Restricted, send data request to data owner
Use Constraints Open
Resource Reference Allen Coral Atlas maps, bathymetry and map statistics are © 2018-2021 Allen Coral Atlas Partnership and Vulcan, Inc. and licensed CC BY 4.0 (
Data Format tiff
Update Frequency unknown
Accuracy 3.7m
Resource Type Dataset
Metadata Date 2021-04-13
Contact Consent Contact details published