Compensation depth is the level at which seawater dissolves calcite, or calcium carbonate. Near the surface of the ocean, where the water is warm and under low pressure, planktonic species are free to incorporate calcium... More »

The most reliable way to measure the depth of a water table is to measure the water level within a shallow well using a measuring tape. Surface geophysical methods are occasionally used when no wells are available. These... More »

The pH of seawater can vary between 5.0 and 9.0. The closer the seawater is to 7.0, the more neutral the water is for sea life. If the seawater becomes acidic or alkaline, it can become uninhabitable for marine life. More »

As the depth into the Earth increases, the temperature increases as well. The Earth’s inner core is the hottest part of the Earth, with temperatures close to 10,800 degrees Fahrenheit, according to LiveScience. The layer... More »

Bathymetry is the measurement of the depth of bodies of water, including oceans, seas, lakes and rivers. Bathymetry may also refer to the shapes and features of underwater terrain, generally for use in a topographical ma... More » Science Earth Science

The cross-section of a river can be determined by measuring the width of the river and riverbank as well as the depth of the water. This data can be used to create visual representation of what the river looks like. More »

At its deepest point, the Danube River is about 26.25 feet deep, while at its shallowest, it reaches a depth of approximately 2 feet. At its widest point, the river has about 4,921 feet between each bank. It travels from... More »