# Ocean Currents and Circulation > Analysis of global ocean circulation patterns, surface and deep currents, their drivers, and impact on climate and marine life distribution - **Canonical URL:** https://flashcards.world/flashcards/sets/7caa5bf7-2efc-444f-a882-c08417bb689c/ - **Markdown URL:** https://flashcards.world/flashcards/sets/7caa5bf7-2efc-444f-a882-c08417bb689c.md - **Level:** intermediate - **Languages:** en → en - **Total Cards:** 43 ## Flashcards (43 Cards) | # | Front (Term / Prompt) | Back (Definition / Answer) | Example | Multiple-Choice Options | | :--- | :--- | :--- | :--- | :--- | | 1 | What is the role of the trade winds in ocean currents? | Trade winds drive surface currents in the tropics, pushing warm water westward and contributing to the formation of gyres. | | | | 2 | What drives surface ocean currents? | Surface ocean currents are primarily driven by wind patterns and the Earth's rotation. | | | | 3 | What is the El Niño phenomenon? | El Niño is a climate pattern characterized by the warming of surface waters in the central and eastern Pacific Ocean, impacting global weather and ocean currents. | | | | 4 | What is the Coriolis effect? | The Coriolis effect is the deflection of moving objects, including ocean currents, due to the rotation of the Earth, causing currents to turn right in the Northern Hemisphere and left in the Southern Hemisphere. | | | | 5 | What factors influence deep-water currents? | Deep-water currents are influenced by temperature and salinity differences in seawater, which affect water density. | | | | 6 | What is the role of the Indian Ocean Dipole? | The Indian Ocean Dipole is a climate phenomenon characterized by differences in sea surface temperatures in the Indian Ocean, affecting monsoon patterns and ocean currents. | | | | 7 | What is the role of salinity in ocean currents? | Salinity affects water density, which is a key factor in driving deep-water currents and thermohaline circulation. | | | | 8 | How do ocean currents impact fishing industries? | Ocean currents affect the distribution of fish populations by transporting nutrients and influencing water temperature, impacting fishing grounds. | | | | 9 | What is the Gulf Stream? | The Gulf Stream is a warm ocean current that originates in the Gulf of Mexico and flows up the eastern coast of the United States, significantly impacting the climate of the North Atlantic. | | | | 10 | What is the role of the Antarctic Circumpolar Current? | The Antarctic Circumpolar Current is the world's largest ocean current, encircling Antarctica and playing a crucial role in global heat distribution and marine ecosystems. | | | | 11 | What is the importance of the Antarctic Bottom Water? | Antarctic Bottom Water is a dense water mass formed in the Southern Ocean, playing a key role in global thermohaline circulation. | | | | 12 | What are coastal currents? | Coastal currents are ocean currents that flow parallel to the coastline, influenced by tides, wind, and the shape of the coastline. | | | | 13 | What is the role of ocean currents in the global climate system? | Ocean currents are integral to the global climate system, regulating temperature, influencing weather patterns, and affecting marine ecosystems. | | | | 14 | What is downwelling? | Downwelling is the process where surface water sinks, often occurring in areas where water becomes denser due to cooling or increased salinity. | | | | 15 | How do ocean currents affect climate? | Ocean currents help regulate climate by distributing heat around the planet, influencing weather patterns and temperatures in coastal regions. | | | | 16 | What are ocean currents? | Ocean currents are continuous, directed movements of seawater generated by various forces acting upon the water, including wind, the Coriolis effect, and differences in water density. | | | | 17 | What are the two main types of ocean currents? | The two main types of ocean currents are surface currents and deep-water currents. | | | | 18 | How do ocean currents affect ocean stratification? | Ocean currents can influence stratification by mixing water layers, affecting temperature and salinity profiles in the ocean. | | | | 19 | What is thermohaline circulation? | Thermohaline circulation is a global system of ocean currents driven by differences in temperature and salinity, affecting the movement of water masses in the deep ocean. | | | | 20 | How do ocean currents contribute to ocean mixing? | Ocean currents contribute to mixing by transporting water masses and nutrients, influencing biological productivity and ecosystem health. | | | | 21 | How do ocean currents interact with tides? | Ocean currents can be influenced by tides, with tidal forces affecting the speed and direction of currents, particularly in coastal areas. | | | | 22 | How do ocean currents influence the distribution of marine pollutants? | Ocean currents can transport marine pollutants over long distances, affecting ecosystems and human activities in coastal areas. | | | | 23 | How do ocean currents affect the migration of marine animals? | Ocean currents can facilitate or hinder the migration of marine animals by providing pathways for movement and influencing environmental conditions. | | | | 24 | What is the role of ocean currents in heat distribution? | Ocean currents distribute heat from the equator to the poles, helping to regulate global climate and weather patterns. | | | | 25 | What is the role of the North Pacific Current? | The North Pacific Current is a warm ocean current that flows eastward across the North Pacific Ocean, influencing climate and marine ecosystems. | | | | 26 | What is the significance of the Canary Current? | The Canary Current is a cold ocean current that flows southward along the northwest coast of Africa, influencing the climate and marine life in the region. | | | | 27 | What is the significance of the Agulhas Current? | The Agulhas Current is a warm ocean current that flows down the eastern coast of South Africa, playing a role in global ocean circulation and climate. | | | | 28 | What is the role of ocean currents in carbon cycling? | Ocean currents play a crucial role in carbon cycling by transporting carbon dioxide and organic matter, influencing global carbon storage and climate. | | | | 29 | What are gyres? | Gyres are large systems of rotating ocean currents, primarily driven by wind and the Coriolis effect, found in each of the world's oceans. | | | | 30 | What is the significance of the Brazil Current? | The Brazil Current is a warm ocean current that flows southward along the eastern coast of South America, impacting regional climate and marine ecosystems. | | | | 31 | What is the relationship between ocean currents and sea level rise? | Changes in ocean currents can affect sea level rise by redistributing water masses and influencing thermal expansion of seawater. | | | | 32 | What are deep-water currents also known as? | Deep-water currents are also known as thermohaline circulation. | | | | 33 | What is upwelling? | Upwelling is the process where deep, cold, nutrient-rich water rises to the surface, supporting high productivity in marine ecosystems. | | | | 34 | What is the role of ocean currents in extreme weather events? | Ocean currents can influence the intensity and frequency of extreme weather events, such as hurricanes, by affecting sea surface temperatures. | | | | 35 | What is the significance of the Kuroshio Current? | The Kuroshio Current is a warm ocean current that flows northward along the eastern coast of Japan, influencing the climate and marine life in the region. | | | | 36 | What is the significance of the Peru Current? | The Peru Current, also known as the Humboldt Current, is a cold ocean current that flows northward along the western coast of South America, supporting rich marine biodiversity. | | | | 37 | What are the five major ocean gyres? | The five major ocean gyres are the North Atlantic Gyre, South Atlantic Gyre, North Pacific Gyre, South Pacific Gyre, and Indian Ocean Gyre. | | | | 38 | What role do ocean currents play in marine life distribution? | Ocean currents transport nutrients and organisms, influencing the distribution and migration patterns of marine species. | | | | 39 | How do ocean currents affect weather patterns? | Ocean currents influence weather patterns by affecting temperature and humidity levels, which can lead to changes in precipitation and storm activity. | | | | 40 | What is the impact of ocean currents on coral reefs? | Ocean currents provide nutrients and help maintain water quality, which are essential for the health and sustainability of coral reefs. | | | | 41 | What is the significance of the California Current? | The California Current is a cold ocean current that flows southward along the western coast of North America, influencing coastal climate and marine ecosystems. | | | | 42 | What is the significance of the North Atlantic Drift? | The North Atlantic Drift is a warm ocean current that extends the Gulf Stream's influence, moderating the climate of Northwestern Europe. | | | | 43 | What is La Niña? | La Niña is the opposite of El Niño, characterized by cooler than average sea surface temperatures in the central and eastern Pacific, influencing global weather patterns. | | | --- Study this deck interactively with FSRS-6 spaced repetition, audio review, and multiple-choice mode at [Flashcards World](https://flashcards.world/flashcards/sets/7caa5bf7-2efc-444f-a882-c08417bb689c/).