Search datasets
-
Hydrographic sheets (H-sheets) and nautical charts produced by the National Ocean Service (NOS) during the 1800s provide historic sounding (water depth) measurements of coastal areas. The data can...
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: September 10, 2026 at 09:14 PM -
Hydrographic sheets (H-sheets) and nautical charts produced by the National Ocean Service (NOS) during the 1800s provide historic sounding (water depth) measurements of coastal areas. The data can...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:36 PM -
Hydrographic sheets (H-sheets) and nautical charts produced by the National Ocean Service (NOS) during the 1800s provide historic sounding (water depth) measurements of coastal areas. The data can...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:23 PM -
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: August 02, 2026 at 11:13 PM
