Abyssal Zone - Woods Hole Oceanographic Institution
2024年6月27日 · What is the abyssal zone? Earth’s vast oceans run deep, bottoming out around 4,000 meters (13,123 feet) in most places, although trenches can form underwater canyons extending another 7,000 meters (22,965 feet). The seafloor and water column from 3,000 to 6,500 meters (9,842 to 21,325 feet) depth is known as the abyssal zone, or the abyss.
Abyssal Zone – Woods Hole Oceanographic Institution
Abyssal Zone. Woods Hole Oceanographic Institution is the world's leading non-profit oceanographic research organization. Our mission is to explore and understand the ocean and to educate scientists, students, decision-makers, and the public. Become a member and help support Ocean science.
Ocean Zones - Woods Hole Oceanographic Institution
Ocean Zones. The ocean water column is made up of five zones: the sunlight zone (epipelagic), the twilight zone (mesopelagic), the midnight zone (bathypelagic), the abyssal zone (abyssopelagic) and the hadal zone (trenches). The upper layer of the ocean is known as the sunlit, or euphotic, zone. Because water strongly absorbs light, sunlight ...
Hadal Zone - Woods Hole Oceanographic Institution
2024年6月10日 · The region extending from 6,000 to 11,000 meters is called the hadal, or hadalpelagic, zone after Hades, the Greek god of the underworld. This zone occurs only in trenches; combined across all oceans, they make up an area about the size of Australia. The hadal zone is characterized by extreme depth and pressure, temperatures that hover just ...
An abyssal recipe Kurt L. Polzin Woods Hole Oceanographic Institution, MS#21, Woods Hole, MA 02543, USA article info Article history: Received 17 September 2008 Received in revised form 21 May 2009 Accepted 24 July 2009 Available online 4 August 2009 Keywords: Turbulence, diffusion, and mixing processes in oceanography Fine structure and ...
Mid-ocean Ridges - Woods Hole Oceanographic Institution
2020年11月10日 · The mid-ocean ridge is a continuous range of undersea volcanic mountains that encircles the globe almost entirely underwater. It is a central feature of seafloor terrain that is more varied and more spectacular than almost anything found on dry land, and includes a collection of volcanic ridges, rifts, fault zones, and other geologic features.
How the Ocean Works - Woods Hole Oceanographic Institution
Seafloor & Below. From plate tectonics to underwater mountain ranges spanning the globe, the seafloor and below encompasses a large field. Hydrothermal Vents. Mid-ocean Ridges. Natural Oil Seeps. Ocean Trenches. Seamounts. Underwater Volcanoes. Although the oceans cover most of Earth, the the tiny sliver of the coastal ocean greatly influences ...
Phytoplankton - A Simple Guide - WHOI
2020年8月20日 · Phytoplankton are mostly microscopic, single-celled photosynthetic organisms that live suspended in water. Like land plants, they take up carbon dioxide, make carbohydrates using light energy, and release oxygen. They are what is known as primary producers of the ocean—the organisms that form the base of the food chain. Because they need ...
Marine Snow and Fecal Pellets - Woods Hole Oceanographic …
1997年12月1日 · Marine Snow and Fecal Pellets. The Spring Rain and Food to the Abyss. By Susumu Honjo | December 1, 1997. December 1997 — Until about 130 years ago, scholars believed that no life could exist in the deep ocean. The abyss was simply too dark and cold to sustain life. The discovery of many animals living in the abyssal environment by Sir ...
Seamounts - Woods Hole Oceanographic Institution
2016年4月12日 · Seamounts are underwater mountains that rise hundreds or thousands of feet from the seafloor. They are generally extinct volcanoes that, while active, created piles of lava that sometimes break the ocean surface. In fact, the highest mountain on Earth is actually a seamount—Hawaii’s Mauna Kea, a dormant volcano that is more than 30,000 feet ...