If the Earth were a smooth spheroid, how deep would the ocean be?Earth science
Asked by: Anthony Carrick
The Earth’s oceans contain an estimate 1.332 billion cubic kilometres of water and the planet has a total surface area of 510.1 million square kilometres. That means, if evenly spread over a smooth sphere of that surface area, it would be covered by an ocean to the depth of 2.611 kilometres.
How deep would the ocean be if the Earth was smooth?
If the earth were smooth, all the land areas would be covered by seawater to a depth of some 8,810 feet – or one and two-thirds miles. “Sea level” of earth’s oceans varies in elevation by as much as 600 feet.
How deep would the ocean be if there was no land?
The average depth of the Earth’s oceans is 3700m. They take up 79% of its surface area. If you lobbed off all of the continents and dumped them into the oceans, then smoothed out the ocean floor, the resulting world ocean would be about 2750m deep.
How deep in the earth can water be found?
Scientists have long speculated that water is trapped in a rocky layer of the Earth’s mantle located between the lower mantle and upper mantle, at depths between 250 miles and 410 miles.
Do scientists know how deep the ocean is?
Today scientists know that on average the ocean is 2.3 miles (3.7 kilometers) deep, but many parts are much shallower or deeper. To measure depth they use sonar, which stands for Sound Navigation And Ranging. A ship sends out pulses of sound energy and measures depth based on how quickly the sound travels back.
How long would it take to mop the ocean?
over 80 trillion years.
Will the oceans ever dry up?
The first three-dimensional climate model able to simulate the phenomenon predicts that liquid water will disappear on Earth in approximately one billion years, extending previous estimates by several hundred million years.
Is there a hidden sea in Earth’s core?
The finding, published in Science, suggests that a reservoir of water is hidden in the Earth’s mantle, more than 400 miles below the surface. Try to refrain from imagining expanses of underground seas: all this water, three times the volume of water on the surface, is trapped inside rocks.
Is there an ocean 400 miles underground?
Scientists discover an ocean 400 miles beneath our feet that could fill our oceans three times over. After decades of theorizing and searching, scientists are reporting that they’ve finally found a massive reservoir of water in the Earth’s mantle — a reservoir so vast that could fill the Earth’s oceans three times over
Is there an ocean under the crust?
Hidden inside the Earth—within the first several hundred kilometers below the crust—there is another ocean. It is, most likely, the largest ocean in the world. This water is not sloshing around in a big pool. No fish plumb its depths.
Why can’t we clean up the Great Pacific Garbage Patch?
First of all, because they are tiny micro plastics that aren’t easily removable from the ocean. But also just because of the size of this area. We did some quick calculations that if you tried to clean up less than one percent of the North Pacific Ocean it would take 67 ships one year to clean up that portion.
Is it possible to clean up the Great Pacific Garbage Patch?
The Ocean Cleanup is developing cleanup systems that can clean up the floating plastics caught swirling in the Great Pacific Garbage Patch. System 002, our latest system iteration, reached proof of technology on October 20th, 2021, meaning we can now start the cleanup.
How much money would it take to clean the ocean?
Reducing marine pollution will take more than half the money needed, according to the paper. At over $90 billion, that cost includes programs to clean up ocean trash, better manage waste and improve wastewater treatment plants.
Can the ocean cover the earth?
The simple answer is no. The whole world will never be underwater. But our coastlines would be very different. If all the ice covering Antarctica , Greenland, and in mountain glaciers around the world were to melt, sea level would rise about 70 meters (230 feet).
Is Mariana Trench the deepest part of the ocean?
Then explain to students that the Mariana Trench is the deepest part of the ocean and the deepest location on Earth. It is 11,034 meters (36,201 feet) deep, which is almost 7 miles.
What is the average elevation of land on earth?
The average elevation of continents = 840 m above sea level; 2750 ft above sea level (For comparison, the elevation of Atlanta is 1000 ft; the elevation of Dalton, GA is about 750 ft.)
What is the name of the vessel that reached a record depth of 35800 feet below sea level?
The Fendouzhe’s maximum depth reached by Fendouzhe (which means “Striver” in Chinese) exceeds film director James Cameron’s solo 2012 dive to 35,787 feet (10,908 m) in the trench, and falls short of the 35,800 feet (10,912 m) attained by the Swiss-Italian-American vessel Trieste on Jan. 23, 1960.
Can submarines go to the bottom of the ocean?
The dive to the ocean’s deepest point turned up some surprises. The news: During a four-hour exploration of the Mariana Trench, retired naval officer Victor Vescovo piloted his submarine to 10,927 meters (35,849 feet) below the sea’s surface, making it the deepest dive on record. He spent four hours at the bottom.
What is the deepest depth a human has gone?
Vescovo’s trip to the Challenger Deep, at the southern end of the Pacific Ocean’s Mariana Trench, back in May, was said to be the deepest manned sea dive ever recorded, at 10,927 meters (35,853 feet).
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