Ocean temperature varies from latitude to latitude and from the surface to the bottom. The ocean is divided into three vertical zones — the surface (mixed) zone, the thermocline, and the deep zone. This guide covers all factors affecting ocean temperature including latitude, winds, currents, evaporation, and density, as well as the horizontal distribution of temperature across different oceans and latitudes.
Salinity of ocean water refers to the total dissolved salt content in seawater, expressed in parts per thousand (ppt). The average ocean salinity is 35.2 ppt. This guide covers factors affecting salinity including evaporation, freshwater input, and ocean currents, along with horizontal distribution across all oceans and seas, vertical distribution, the halocline, and the complete salt budget cycle.
Ocean currents are continuous movements of ocean water in a specific direction, driven by planetary winds, temperature, salinity, gravity, and the Coriolis force. This guide covers warm and cold currents, types based on depth and temperature, primary and secondary forces, gyres, Sargasso Sea, upwelling, the role of cold currents in desert formation, and the process of Atlantification in the Arctic.
Throughout Earth’s 4.6-billion-year history, the continents have repeatedly assembled into vast landmasses called supercontinents and then broken apart again. This
A transform fault is a type of plate boundary where two plates slide past each other horizontally. Unlike convergent or
When two oceanic plates collide, the older and denser one sinks beneath the other — and the result is a
Tides are the periodic rise and fall of sea level produced by the gravitational interaction of earth, sun, and moon. This guide covers spring tides, neap tides, tidal bore, tidal bulge, types of tides based on frequency and celestial positions, effect of perigee and apogee, importance of tides, characteristics of tides, and the impact of tidal bores.
Ocean water is never still — it moves horizontally as waves and currents, and vertically as tides and upwelling. This guide explains everything about ocean waves — from wave crest and trough to wavelength, wave period, how wind creates waves, and how water particles move in circular orbits.
Beneath every ocean, running for a combined 70,000 kilometres — nearly twice the circumference of Earth — lies the planet’s
At the bottom of every ocean trench lies a world of crushing pressure, near-freezing darkness, and — surprisingly — abundant