សាគរវិទ្យា៖ ភាពខុសគ្នារវាងកំណែនានា

ខ្លឹមសារដែលបានលុបចោល ខ្លឹមសារដែលបានសរសេរបន្ថែម
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បន្ទាត់ទី២៖
{{redirect|វិទ្យាសាស្ត្រមហាសមុទ្រ|សារព័ត៌មានវិទ្យាសាស្ត្រ|វិទ្យាសាស្ត្រមហាសមុទ្រ (សារព័ត៌មាន)}}
 
[[File:Thermohaline Circulation 2.png|thumb|300px|right|[[Thermohaline circulationវដ្ដកម្មសីតុណ្ហលោណជាតិ]]]]
'''Oceanography''' (compound of the [[Greek language|Greek]] words ὠκεανός meaning "[[ocean]]" and γράφω meaning "write"), also known as '''oceanology''' and '''marine science''', is the branch of [[Earth science]] that studies the ocean. It covers a wide range of topics, including [[marine organism]]s and [[ecosystem]] dynamics; [[ocean currents]], [[Wind wave|waves]], and [[geophysical fluid dynamics]]; [[plate tectonics]] and the geology of the sea floor; and [[flux]]es of various chemical substances and physical properties within the ocean and across its boundaries. These diverse topics reflect multiple disciplines that oceanographers blend to further knowledge of the [[world ocean]] and understanding of processes within: [[astronomy]], [[biology]], [[chemistry]], [[climatology]], [[geography]], [[geology]], [[hydrology]], [[meteorology]] and [[physics]]. [[Paleoceanography]] studies the history of the oceans in the geologic past.