Oceans in the context of "Stratification (water)"

Convection is single or multiphase fluid flow that occurs spontaneously through the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity (see buoyancy). When the cause of the convection is unspecified, convection due to the effects of thermal expansion and buoyancy can be assumed. Convection may also take place in soft solids or mixtures where particles can flow.

Convective flow may be transient (such as when a multiphase mixture of oil and water separates) or steady state (see convection cell). The convection may be due to gravitational, electromagnetic or fictitious body forces. Heat transfer by natural convection plays a role in the structure of Earth's atmosphere, its oceans, and its mantle. Discrete convective cells in the atmosphere can be identified by clouds, with stronger convection resulting in thunderstorms. Natural convection also plays a role in stellar physics. Convection is often categorised or described by the main effect causing the convective flow; for example, thermal convection.

Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation. The term is applied especially to acquiring information about Earth and other planets. Remote sensing is used in numerous fields, including geophysics, geography, land surveying and most Earth science disciplines (e.g. exploration geophysics, hydrology, ecology, meteorology, oceanography, glaciology, geology). It also has military, intelligence, commercial, economic, planning, and humanitarian applications, among others.

In current usage, the term remote sensing generally refers to the use of satellite- or airborne-based sensor technologies to detect and classify objects on Earth. It includes the surface and the atmosphere and oceans, based on propagated signals (e.g. electromagnetic radiation). It may be split into "active" remote sensing (when a signal is emitted by a sensor mounted on a satellite or aircraft to the object and its reflection is detected by the sensor) and "passive" remote sensing (when the reflection of sunlight is detected by the sensor).

Piracy in the Caribbean refers to the historical period of widespread piracy that occurred in the Caribbean Sea. Primarily between the 1650s and 1730s, where pirates frequently attacked and robbed merchant ships sailing through the region, often using bases or islands like Port Royal. The era of piracy in the Caribbean began in the 1500s and phased out in the 1830s after the navies of the nations of Western Europe and North America with colonies in the Caribbean began hunting and prosecuting pirates. The period during which pirates were most successful was from the 1650s to the 1730s. Piracy flourished in the Caribbean because of the existence of pirate seaports such as Fort Saint Louis in Martinique, Port Royal in Jamaica, Castillo de la Real Fuerza in Cuba, Tortuga in Haiti, and Nassau in the Bahamas. Piracy in the Caribbean was part of a larger historical phenomenon of piracy, as it existed close to major trade and exploration routes in almost all the five oceans.

An aseismic ridge is “a long, linear and mountainous structure that crosses the basin floor of some oceans.” They do not cause earthquakes.

It is called an “aseismic ridge” because they do not receive seismic activity. As a result, they tend to be stable. They are 700-5000 kilometers in length.

David Takayoshi Suzuki CC OBC FRSC (born March 24, 1936) is a Canadian academic, science broadcaster, and environmental activist. Suzuki earned a PhD in zoology from the University of Chicago in 1961, and was a professor in the genetics department at the University of British Columbia from 1963 until his retirement in 2001. Since the mid-1970s, Suzuki has been known for his television and radio series, documentaries and books about nature and the environment. He is best known as host and narrator of the popular and long-running CBC Television science program The Nature of Things, seen in over 40 countries. He is also well known for criticizing governments for their lack of action to protect the environment.

A longtime activist to reverse global climate change, Suzuki co-founded the David Suzuki Foundation in 1990, to work "to find ways for society to live in balance with the natural world that does sustain us." The Foundation's priorities are oceans and sustainable fishing, climate change and clean energy, sustainability, and Suzuki's Nature Challenge. The Foundation also works on ways to help protect the oceans from large oil spills such as the Deepwater Horizon oil spill. Suzuki also served as a director of the Canadian Civil Liberties Association from 1982 to 1987.