tidal range
111Marine snow — Underway recovery of a sediment trap used to collect marine snow and estimate export production In the deep ocean, marine snow is a continuous shower of mostly organic detritus falling from the upper layers of the water column. It is a… …
112Pelagic zone — Aquatic layers Pelagic    Photic       Epipelagic …
113Thermocline — Aquatic layers Pelagic    Photic       Epipelagic …
114National Oceanographic Data Center — The National Oceanographic Data Center (NODC) is one of the national environmental data centers operated by the National Oceanic and Atmospheric Administration (NOAA) of the U.S. Department of Commerce. The main NODC facility is located in Silver …
115Oceanic crust — Age of oceanic crust. The red is most recent, and blue is the oldest. Oceanic crust is the part of Earth s lithosphere that surfaces in the ocean basins. Oceanic crust is primarily composed of mafic rocks, or sima, which is rich in iron and… …
116Seabed — This article is about ocean floor. For the 2001 song by Audio Adrenaline, see Lift (Audio Adrenaline album). Map showing the underwater topography (bathymetry) of the ocean floor. Like land terrain, the ocean floor has ridges, valleys, plains and …
117Deep-ocean Assessment and Reporting of Tsunamis — A diagram of the Dart II System A tsunami b …
118Tide gauge — A tide gauge. A tide gauge is a device for measuring sea level and detecting tsunamis. Sensors continuously record the height of the water level with respect to a height reference surface close to the geoid. Water enters the device by the bottom… …
119Cross sea — In surface navigation, a cross sea is a sea state with two wave systems traveling at oblique angles.[1] This may occur when water waves from one weather system continue despite a shift in wind. Waves generated by the new wind run at an angle to… …
120Oceanic basin — Diagrammatic cross section of an ocean basin, showing the various geographic features Hydrologically, an oceanic basin may be anywhere on Earth that is covered by seawater, but geologically ocean basins are large geologic basins that are below… …
