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OpenSeaMap is a software project collecting freely usable nautical information and geospatial data to create a worldwide nautical chart. This chart is available on the OpenSeaMap website, and can also be downloaded for use as an electronic chart for offline applications.
A 1976 United States NOAA chart of part of Puerto Rico A nautical chart of the Warnemünde harbor shown on OpenSeaMap. A nautical chart or hydrographic chart is a graphic representation of a sea region or water body and adjacent coasts or banks.
Crowdsourcing also is entering hydrographic surveying, with projects such as OpenSeaMap, [31] TeamSurv Archived 29 December 2020 at the Wayback Machine and ARGUS. Here, volunteer vessels record position, depth, and time data using their standard navigation instruments, and then the data is post-processed to account for speed of sound, tidal ...
The International Hydrographic Organization (IHO) (French: Organisation Hydrographique Internationale) is an intergovernmental organization representing hydrography. [1] [2] As of May 2024, the IHO comprised 100 member states.
OpenSeaMap is a world nautical chart built as a mashup of OpenStreetMap, crowdsourced water depth tracks, and third-party weather and bathymetric data. OpenTopoMap uses OSM and SRTM data to create topographic maps. [93]
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OpenSeaMap sea chart showing a port buoy and a west cardinal, an indicator for a sound signal and the label Bell [4] A bell buoy is a floating sea mark with a bell that is made to sound by the swell. It belongs to the sound buoys and by shape to the beacon buoys. [5] [6] In nautical charts, bell buoys are designated Bell. The development of ...
On the morning of April 16, 2014, the ferry MV Sewol sank whilst en route from Incheon towards Jeju City in South Korea. [14] The 6,825-ton vessel sent a distress signal from about 2.7 kilometres (1.7 mi; 1.5 nmi) north of Byeongpungdo at 08:58 KST (23:58 UTC, April 15, 2014). [15]