Search results
Results from the WOW.Com Content Network
A bathymetric chart is a type of isarithmic map that depicts the submerged bathymetry and physiographic features of ocean and sea bottoms. [1] Their primary purpose is to provide detailed depth contours of ocean topography as well as provide the size, shape and distribution of underwater features.
The General Bathymetric Chart of the Oceans (GEBCO) is a publicly available bathymetric chart of the world's oceans. The project was conceived with the aim of preparing a global series of charts showing the general shape of the seafloor. Over the years it has become a reference map of the bathymetry of the world's oceans for scientists and others.
Bathymetric maps (a more general term where navigational safety is not a concern) may also use a digital terrain model and artificial illumination techniques to illustrate the depths being portrayed. The global bathymetry is sometimes combined with topography data to yield a global relief model. Paleobathymetry is the study of past underwater ...
IBCSO version 2 was published in 2022 [5] and increased the extent of the bathymetric map to 50°S, increasing the area covered by 2.5 compared to IBCSO version 1. 92.7% of map data originate from multibeam data, 6.7% originate from singlebeam data, and the remaining ~1% comes from mixed sources (seismic reflection, lidar, etc.).
Nautical charts are based on hydrographic surveys and bathymetric surveys. As surveying is laborious and time-consuming, hydrographic data for many areas of sea may be dated and are sometimes unreliable. Depths are measured in a variety of ways. Historically the sounding line was used.
Flag of French Polynesia Political map of Oceania, showing EEZ borders. Tahiti is part of French Polynesia. French Polynesia is a semi-autonomous territory of France with its own assembly, president, budget and laws. France's influence is limited to subsidies, education, and security.
Teahupoʻo is known for its surf break and resulting heavy, glassy waves, often reaching 2 to 3 m (7 to 10 ft), and sometimes up to 7 m (23 ft).Because of the regularity and size of its waves, it hosts the annual Billabong Pro Teahupoo surf competition (part of the World Championship Tour (WCT) surfing circuit) and hosted the 2024 Olympic surfing competition.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate