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An open textbook is a textbook licensed under an open license, and made available online to be freely used by students, teachers and members of the public. Many open textbooks are distributed in either print, e-book, or audio formats that may be downloaded or purchased at little or no cost.
In oceanography, sea state is the general condition of the free surface on a large body of water—with respect to wind waves and swell—at a certain location and moment. A sea state is characterized by statistics, including the wave height, period, and spectrum. The sea state varies with time, as the wind and swell conditions change.
The following outline is provided as an overview of and introduction to Oceanography.. Thermohaline circulation. Oceanography (from Ancient Greek ὠκεανός (ōkeanós) 'ocean' and γραφή (graphḗ) 'writing'), also known as oceanology, sea science, ocean science, and marine science, is the scientific study of the ocean, including its physics, chemistry, biology, and geology.
The List of newspapers in Sri Lanka lists every daily and non-daily news publication currently operating in Sri Lanka. The list includes information on whether it is distributed daily or non-daily, and who publishes it.
It is usually taken by students during the final two years of Senior secondary school (Grade 10 & 11 (usually ages 15–16)) or external (non-school) candidate. The exam is usually held in December. The exams are held in three mediums Sinhala, Tamil and English.
The term trench, in its modern sense of a prominent elongated depression of the sea bottom, was first used by Johnstone in his 1923 textbook An Introduction to Oceanography. [ 16 ] [ 2 ] During the 1920s and 1930s, Felix Andries Vening Meinesz measured gravity over trenches using a newly developed gravimeter that could measure gravity from ...
Download as PDF; Printable version; ... Oceanography awards (7 P) B. Biological oceanography (4 C, ... This page was last edited on 7 December 2024, ...
The subfield dealing with the sea's motion, its forces, and the forces acting upon it is known as physical oceanography. [21] Marine biology (biological oceanography) studies the plants, animals, and other organisms inhabiting marine ecosystems.