The USGS has made bathymetric surveys for many coastal areas and for a few selected rivers and lakes in the U.S., including Yellowstone Lake, Crater Lake, and Lake Tahoe. Information and data for some of those studies is on the USGS Maps of America's Submerged Lands website.
NOAA (National Oceanic and Atmospheric Administration) is the primary source of bathymetric data for the world's oceans. See their Bathymetry and Global Relief website.
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Why is the ocean salty?
Oceans cover about 70 percent of the Earth's surface and about 97 percent of all water on and in the Earth is saline—there's a lot of salty water on our planet. By some estimates, if the salt in the ocean could be removed and spread evenly over the Earth’s land surface it would form a layer more than 500 feet (166 meters) thick, about the height of a 40-story office building. But, where did all...
Where can I get current sea-surface temperature data?
The USGS has studied sea-surface temperature in many areas around the globe; you can find publications from these studies in the USGS Publications Warehouse and by searching on the Internet.World maps and data are available from other agencies, particularly at the NOAA's Sea Surface Temperature , and at the JPL Physical Oceanography Distributed Active Archive Center. For specific data covering...
What is marine geology?
Geology is the study of the Earth. This includes how the Earth was formed, how the Earth has changed since it was formed, the materials that make up the Earth, and the processes that act on it. Marine Geology focuses on areas affected by our oceans including the deep ocean floor, the shallower slopes and shelves that surround the continents, and coastal areas like beaches and estuaries. USGS...
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- FAQ
Why is the ocean salty?
Oceans cover about 70 percent of the Earth's surface and about 97 percent of all water on and in the Earth is saline—there's a lot of salty water on our planet. By some estimates, if the salt in the ocean could be removed and spread evenly over the Earth’s land surface it would form a layer more than 500 feet (166 meters) thick, about the height of a 40-story office building. But, where did all...
Where can I get current sea-surface temperature data?
The USGS has studied sea-surface temperature in many areas around the globe; you can find publications from these studies in the USGS Publications Warehouse and by searching on the Internet.World maps and data are available from other agencies, particularly at the NOAA's Sea Surface Temperature , and at the JPL Physical Oceanography Distributed Active Archive Center. For specific data covering...
What is marine geology?
Geology is the study of the Earth. This includes how the Earth was formed, how the Earth has changed since it was formed, the materials that make up the Earth, and the processes that act on it. Marine Geology focuses on areas affected by our oceans including the deep ocean floor, the shallower slopes and shelves that surround the continents, and coastal areas like beaches and estuaries. USGS...
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