Ground heights[править]

• by USGS in SRTMv4 - 90m, in SRTM DLR - 25m.
• ASTER GDEM - ЦМР на основе радиометра ASTER, установленного на борту спутника Terra. Пространсвенное разрешение 15 метров.

How calculate sea depths?[править]

To map some 140 million square miles of sea floor, the Seabed 2030 project is currently recruiting around 100 ships that will circumscribe the globe for 13 years. The team, united under the non-profit group General Bathymetric Chart of the Oceans (GEBCO)

Seafloor gravity maps[править]

Global Map of Marine Gravity

Explore The World's Most Detailed Map Of The Seafloor, Released Today Robbie Gonzalez 10/03/14 8:00p

super-detailed map of the ocean floor’s topography is based on satellite measurements of subtle lumps on the ocean’s surface. These lumps of water, which are subtle, low, and wide on the ocean’s surface, are caused by the gravitational pull of underwater features like mountains and ridges. The team of scientists wrapped their data around a globe built with the Javascript library Cesium

shelfs[править]

from http://www.ngdc.noaa.gov/mgg/image/2minrelief.html

USGS explorer shows shelfs with Google watermark.

Map of the Norwegian continental shelf - visual horizontals at 100м, 200м, 300м

some regions[править]

A 1.4-Billion-Pixel Map of the Gulf of Mexico Seafloor