You may want to print a copy of the hypsometric curve to work from. Your textbook may have a slightly different version. The hypsometric curve is the graph on the right hand side of this page. This curve is typically used to demonstrate that the Earth has two types of crust, continental and oceanic.
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ETOPO1 is a 1 arc-minute digital representation of Earth's solid surface that integrates land topography and ocean bathymetry from numerous global and regional data sets. The histogram reveals two primary elevation groupings: the continents, several hundred meters above sea level, and the oceanic abyssal plains, roughly 4, meters below sea level. This distribution indicates that the crust of the ocean floor is fundamentally different from the continents, which has been confirmed by countless research studies.
The dramatic steepening of the hypsographic curve at mountains and oceanic trenches can only be maintained by a dynamic Earth.
On geologic timescales, such features would quickly erode or fill in with sediments. Coastal Hypsographic Curve. Figure 2 shows an enlarged hypsographic curve spanning the coastal zone to m elevation. While ETOPO1 does not resolve meter-level variations, the curve nevertheless reveals three distinct trends between and meters of elevation. Histogram Calculation.
The histogram was determined using Equation 1 to calculate the area of each cell, which were grouped by elevation and summed Table 1. ETOPO1 elevation values are to the nearest meter, with an accuracy no better than ten meters. In deep ocean areas, depths are accurate to tens of meters at best. The hypsographic curves Figs.
References: Amante, C. Figure 1: Global histogram and hypsographic curve of Earth's surface. Figure 2: Coastal hypsographic curve. Coastal DEMs.
This shows that on Earth, on average land projects about m above sea level and the average depth of ocean basins is about m below sea level. May 24, Retrieved May 24, from Encyclopedia. Then, copy and paste the text into your bibliography or works cited list. Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia. Home Science Dictionaries thesauruses pictures and press releases hypsographic curve.
A graphic representation of the elevation and depth of points on the surface of a planet with reference to a datum; on Earth sea level is used as the datum. This shows that on Earth, on average land projects about m above sea level and the average depth of ocean basins is about m below sea level. Compare hypsometric curve. Subjects: Science and technology — Earth Sciences and Geography. All Rights Reserved.