Ocean Zones - Woods Hole Oceanographic Institution
The ocean water column is made up of five zones: the sunlight (epipelagic), twilight (mesopelagic), midnight (bathypelagic), abyssal (abyssopelagic) and hadal zones (trenches).
Abyssal Zone - Woods Hole Oceanographic Institution
2021年2月25日 · 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.
Twilight Zone - Woods Hole Oceanographic Institution
2023年5月31日 · AI in the Ocean Twilight Zone. Deep Learning techniques are revealing new secrets about the mesopelagic. The ocean twilight zone is a layer of water that stretches around the globe. It lies 200 to 1,000 meters below the ocean surface, just beyond the reach of sunlight.
Know Your Ocean - Woods Hole Oceanographic Institution
Surface Ocean. The surface ocean extends from 0 to roughly 100 meters (330 feet) depth across the entire ocean. This is where the ocean meets the atmosphere and absorbs carbon dioxide from the air—a key link in the planetary carbon cycle and primary cause of ocean acidification.
Hadal Zone - Woods Hole Oceanographic Institution
2024年5月2日 · The hadal zone is characterized by extreme depth and pressure, temperatures that hover just above freezing, and complete darkness—at least in terms of light from the sun. Bioluminescence allows organisms in the ocean depths to communicate.
Sunlit Zone - Woods Hole Oceanographic Institution
2024年5月2日 · The upper layer of the ocean is known as the sunlit, or euphotic, zone. Because water strongly absorbs light, sunlight penetrates only to depths of about 200 meters (656 feet).
Ocean Trenches - Woods Hole Oceanographic Institution
2019年11月7日 · Ocean trenches are steep depressions exceeding 6,000 meters in depth, where old ocean crust from one tectonic plate is pushed beneath another plate. Trenches make up the world's hadal zone.
Midnight Zone - Woods Hole Oceanographic Institution
2024年5月2日 · By about 1,000 meters (about 3,300 feet) depth, even the faintest light has been extinguished, leaving these deep ocean waters in perpetual darkness. The resulting bathypelagic, or midnight, zone extends to about 4,000 meters (about 13,100 feet), which reaches the ocean floor in many places.
Ocean Zones – Woods Hole Oceanographic Institution
How the Ocean Works/Ocean Zones/ Can the twilight zone be fished responsibly? As some nations eye the rich fishing grounds of the ocean’s mid-water, scientists investigate what it would mean for top predators
Five big discoveries from WHOI’s Ocean Twilight Zone Project
2024年5月16日 · Deep below the ocean surface, where sunlight almost disappears, the twilight zone abounds with life. From the tiniest microbes to the largest fish and everything in between, most of this shadowy world has long remained a mystery—but WHOI’s Ocean Twilight Zone (OTZ) Project is changing that.