what is the relative distribution of water on earth
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Water Main articles: Hydrology and Water distribution on Earth. Water covers 71% of the Earth's surface; the oceans contain 96.5% of the Earth's water. The Antarctic ice sheet, which contains 61% of all fresh water on Earth, is visible at the bottom. Condensed atmospheric water can be seen as clouds, contributing to the Earth's albedo.
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Water: A Never-ending Story Background. Water on earth is used over and over. The water cycle, the continuous movement of water from ocean to air and land then back to the ocean in a cyclic pattern, is a central concept in meteorology. In the water cycle, the sun heats the Earth's surface water, causing that surface water to evaporate (gas). This water vapor then rises into the earth's atmosphere where it cools and condenses into liquid droplets.
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- Did you know? A fixed amount of water recirculates around the Earth. Water moves in certain directions from place-to-place (reservoir-to-reservoir) by only certain processes and pathways. Some processes of transfer are rapid while others are much slower.
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Water cycle The water cycle, also known as the hydrological cycle or the hydrologic cycle, describes the continuous movement of water on, above and below the surface of the Earth. The mass of water on Earth remains fairly constant over time but the partitioning of the water into the major reservoirs of ice, fresh water, saline water and atmospheric water is variable depending on a wide range of climatic variables. The water moves from one reservoir to another, such as from river to ocean, or from the ocean
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Water distribution on Earth Water distribution on Earth - Distribution of saline and fresh water. 1  The total volume of water on Earth is estimated at 1.386 billion km³ (333 million cubic miles), with 97.5% being salt water and 2.5% being fresh water. 2  The total volume of water in rivers is estimated at 2,120 km³ (510 cubic miles), or 2% of the surface fresh water on Earth. Rivers and basins are often compared not according to their static volume, but to their flow of water, or surface runoff.
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Groundwater Storage - The Water Cycle Groundwater and global water distribution. As these charts show, even though the amount of water locked up in groundwater is a small percentage of all of Earth's water, it represents a large percentage of total freshwater on Earth.
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___ The Earth Density: Earth is the densest major body in the solar system. Density of planet Earth is about 5.52 g/cm 3 or 5 520 kg/m 3. Water, as you might know, has a density of 1000 kg/m 3 at 3.98 degrees centigrade and at one atmosphere of pressure.
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- Activity: All the Water in the World . Did you know....? Earth is called the water planet. Between two-thirds (2/3) and three-fourths (3/4) of the earth’s surface is covered with water. The earth has different types of water: Oceans . 97.2% of total water . Ice caps/glaciers . 2.38% . Ground water . 0.397% . Surface water (e.g., lakes, rivers, streams, ponds)
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Earth rainfall climatology Precipitation is a major component of the water cycle, and is responsible for depositing most of the fresh water on the planet. Approximately 505,000 cubic kilometres (121,000 cu mi) of water falls as precipitation each year; 398,000 cubic kilometres (95,000 cu mi) of it over the oceans. Given the Earth 's surface area, that means the globally averaged annual precipitation is 990 millimetres (39 in).
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- People tend to think that the amount of water on the planet is unlimited, yet the amount of water on the Earth will actually stay the same. Of the water on Earth, 97.3% is oceans, inland seas, and salt lakes; the rest is fresh water (icecaps/glaciers, groundwater, freshwater lakes, atmosphere, rivers). The amount of available fresh water to humans and wildlife depends largely on how water quality is maintained.
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- A previous version of this article, published in 2000, is now archived as a PDF file. Viewed from space, one of the most striking features of our home planet is the water, in both liquid and frozen forms, that covers approximately 75% of the Earth’s surface. Geologic evidence suggests that large amounts of water have likely flowed on Earth for the past 3.8 billion years—most of its existence.
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- There is a finite amount of water on earth. The water on earth is used over and over again. The water cycle, or hydrologic cycle, is the continuous movement of water from ocean to air and land and then back to the ocean in a cyclic pattern.
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The World's Water The image shows that Earth's water resides in a very thin slice all around the Earth's surface. Distribution of Earth's Water In the first bar, notice how only 2.5% of Earth's water is freshwater - the amount needed for life to survive. The middle bar shows the breakdown of freshwater.
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The Distribution of Water on Earth So we still have 1% of all the water on Earth left to distribute. About 30% of Earth's freshwater (approximately 0.6% of all water on Earth) is found as groundwater. This is one resource we do take advantage of - it's where we get much of our water for drinking and irrigating agricultural crops. Surface water, which is all the lakes, rivers and streams on Earth, makes up about 0.3% of all the freshwater (about 0.009% of all water on Earth). Think about all the large rivers we have on our planet, like the Nile, the Amazon, the Colorado and the Mississippi.
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Water Water is found in many places on Earth including on the surface of the planet, within rocks below the surface, and in the atmosphere. Water travels between different areas of the Earth through the water cycle. About 70% of the Earth surface is covered with water, and most of that is the ocean. Only a small portion of the Earth's water is freshwater, which is found in rivers, lakes, and groundwater. Freshwater is needed for drinking, farming, and washing. In addition to liquid water, water is also present on Earth in the form of ice. Without water, life as we know it would not exist.
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Distribution of water Distribution of water. The world's oceans contain 97% of the water in the hydrosphere, most of which is salt water. Ice caps, like that found covering Antarctica, and glaciers that occupy high alpine locations, compose a little more than 2% of all water found on earth.
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- of water, about 97 percent is found in the ocean. The ocean holds about 97 percent of the Earth's water; the remaining three percent is distributed in many different places, including glaciers and ice, below the ground, in rivers and lakes, and in the atmosphere.
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Where is all of the Earth's water? Of the world's total water supply of about. of water, about 97 percent is found in the ocean. The ocean holds about 97 percent of the Earth's water; the remaining three percent is distributed in many different places, including glaciers and ice, below the ground, in rivers and lakes, and in the atmosphere.
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- Currents that originate near the equator are warm; currents that flow from the poles are cold. (Smithsonian Ocean Planet). The planetary water supply is dominated by the oceans (see Table 8b-1). Approximately 97 % of all the water on the Earth is in the oceans. The other 3 % is held as freshwater in glaciers and icecaps, groundwater, lakes, soil, the atmosphere, and within life. (Michael J. Pidwirny). Table 8b-1: Inventory of water at the Earth's surface.
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Water distribution on Earth Water in Earth's mantle. It is estimated an additional 1.5 to eleven times the amount of water in the oceans is contained in the Earth's interior, and some scientists have hypothesized that the water in the mantle is part of a whole-Earth water cycle.
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- The world’s water exists naturally in different forms and locations: in the air, on the surface, below the ground, and in the oceans. Freshwater accounts for only 2.5% of the Earth’s water, and most of it is frozen in glaciers and ice caps.
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Introduction Distribution of the Earth's water. Earth is known as the Blue Planet because 71 percent of the Earth's surface is covered with water. Water also exists below land surface and as water vapor in the air. Water is a finite source.
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How much water is there on, in, and above the Earth? About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. Water is never sitting still.ven though you may only notice water on the Earth's surface, there is much more freshwater stored in the ground than there is in liquid form on the surface. In fact, some of the water you see flowing in rivers comes from seepage of groundwater into river beds.
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- The Water Cycle. Viewed from space, one of the most striking features of our home planet is the water, in both liquid and frozen forms, that covers approximately 75% of the Earth’s surface. Geologic evidence suggests that large amounts of water have likely flowed on Earth for the past 3.8 billion years—most of its existence.
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Summary of the Water Cycle The water cycle is the process by which water moves around the Earth. Water moves between streams, rivers, lakes, underground seepage, seas, water vapor in the air, and clouds in the sky.
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Where is all of the Earth's water? The ocean holds about 97 percent of the Earth's water; the remaining three percent is distributed in many different places, including glaciers and ice, below the ground, in rivers and lakes, and in the atmosphere. According to the U.S. Geological Survey, there are over. of water on the planet.