Draining the Oceans Beta
Beta: not reviewed yet, and there is no video for this one.
Lower the sea with the slider and watch the sea floor turn to dry land, on the map and on a globe you can spin.
The sea floor, and what is left when the sea goes down
Loading the map.
Hover or tap the map to read the depth or height there. Tap a white dot for a famous deep.
Sea depth, 0 to 11,000 m
Land height, 0 to 6,500 m
Drained sea floor, by its old depth
Relief: NOAA NCEI ETOPO 2022. Readings use about 20 km cells, so narrow trench floors read a little shallow; a tapped dot shows the surveyed maximum depth. Lakes stay full when the sea is lowered.
The sea floor in 3D
Loading the globe.
0 m11,000 m deep
Drag to spin, pinch or scroll to zoom. Heights are stretched 80 times.
Sources:
- Relief map and globe: NOAA NCEI ETOPO 2022 global relief model, 60 arc-second grid, read through the NOAA PIFSC ERDDAP server.
- Challenger Deep, 10,935 m: NOAA National Ocean Service, How deep is the ocean?
- Puerto Rico Trench, 8,378 m (plus or minus 5 m): Bongiovanni, Stewart and Jamieson (2022), High-resolution multibeam sonar bathymetry of the deepest place in each ocean, Geoscience Data Journal 9(1). It also gives 10,924 m (plus or minus 15 m) for Challenger Deep.
- Lake Superior, 406 m: NOAA Great Lakes Environmental Research Laboratory, physical features of the Great Lakes.
- Caspian Sea, 1,025 m: International Association for Great Lakes Research, Caspian Sea profile.
- Lake Tanganyika, 1,470 m: FAO Lake Tanganyika Research project.
- Lake Baikal, 1,642 m: Limnological Institute, Russian Academy of Sciences, from the 1979 to 1986 Soviet Navy survey.