2011年8月1日 · Ocean water is on the move, affecting your climate, your local ecosystem, and the seafood that you eat. Ocean currents, abiotic features of the environment, are continuous and directed movements of ocean water. These currents are on the ocean’s surface and in its depths, flowing both locally and globally.

This is the ocean's largest current. It can travel between 25-75 miles a day and is equal in volume to 6,000 large rivers. Surface ocean currents on the open ocean are fantastically complicated and beautiful, driven by a complex global wind system. But there's one more ocean current force that you may have never heard of.

2023年3月28日 · While ocean currents are shallow-level circulations, there is global circulation which extends to the depths of the sea called the Great Ocean Conveyor. Also called the thermohaline circulation, it is driven by differences in the density of the sea water which is controlled by temperature (thermal) and salinity (haline).

A second factor that drives ocean currents is wind. Winds drive currents that are at or near the ocean's surface. These currents are generally measured in meters per second or in knots (1 knot = 1.15 miles per hour or 1.85 kilometers per hour). Winds drive currents near coastal areas on a localized scale, and in the open ocean on a global scale.

2023年4月14日 · This image will help identify the top 25 of the world's wind driven ocean currents. To view each current individually, uncheck the "All Currents" box, then check the box for each of the individual currents. Currents indicated by the red color are considered "warm" currents as they transport warm water (and heat) toward the poles.

5 天之前 · Climate Indicators hold key information for the most relevant domains of climate change: temperature and energy, atmospheric composition, ocean and water as well as the cryosphere. Cryosphere The cryosphere encompasses the frozen parts of Earth, including glaciers and ice sheets, sea ice, and any other frozen body of water.

2024年12月18日 · Winds, water density, and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth’s rotation results in the Coriolis Effect which also influences ocean currents. Large-scale, surface ocean currents are driven by global wind systems that are fueled by energy from the sun.

2020年11月4日 · A team of NASA and university scientists has developed a new way to use measurements from NASA's Gravity Recovery and Climate Experiment mission to track changes in Atlantic Ocean currents, which are a driving force in global climate. The finding opens a path to better monitoring and understanding of how ocean circulation is changing and what ...

Currents are cohesive streams of seawater that circulate through the ocean. Some are short-lived and small, while others are vast flows that take centuries to complete a circuit of the globe. There are two distinct current systems in the ocean—surface circulation, which stirs a relatively thin upper layer of the sea, and deep circulation ...

2020年4月1日 · These patches are formed by large, rotating ocean currents called gyres that pull debris into one location, often to the gyre’s center. There are five gyres in the ocean: one in the Indian Ocean, two in the Atlantic Ocean, and two in the Pacific Ocean. Garbage patches of varying sizes are located in each gyre.