Hydrography meaning

hī-drŏgrə-fē
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The scientific description and analysis of the physical characteristics of Earth's surface waters, including temperature, salinity, oxygen saturation, and the chemical content of water. Oceanography (the study of saltwater bodies) and limnology (the study of freshwater bodies) are subsets of hydrography.
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The scientific description and analysis of the physical conditions, boundaries, flow, and related characteristics of the earth's surface waters.
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The mapping of bodies of water.
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The study, description, and mapping of oceans, lakes, and rivers, esp. with reference to their navigational and commercial uses.
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The oceans, lakes, rivers, etc. of a region, esp. as dealt with on a map or in a survey, treatise, etc.
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The mapping of bodies of water.
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Origin of hydrography

  • hydro- +‎ -graphy

    From Wiktionary