TCarta Announces Satellite Derived Bathymetry Product to Supplement Official Nautical Charts in Shallow Coastal Zones

TCarta, a provider of hydrospatial mapping services, has introduced a new line of Satellite Reconnaissance Charts to supplement official marine navigation maps in shallow waters.

TCarta will introduce the new Satellite Reconnaissance Chart products to the hydrographic community on Tuesday, February 25, at the 2025 Esri Federal GIS Conference in Washington, D.C.

Derived from recently acquired satellite imagery, TCarta Satellite Reconnaissance Charts are digital maps adhering to International Hydrographic Organization S-57 and S-100 data model standards with the same appearance and symbology as official navigation aids. However, the TCarta Charts do not replace official nautical map products, which are primarily designed for marine navigation in commercial shipping lanes.

The new TCarta Satellite Reconnaissance Charts contain up-to-date details of seafloor depths, sandbars, reefs, shoals, and other submerged hazards – along with floating dangers – in the near-shore environments that are often poorly mapped or out of date on official maritime charts. Offered at off-the-shelf 1:20,000 scale and custom 1:4,000 scale, the TCarta products are delivered in file formats ready to load into popular marine navigation software as well as common GIS software platforms.