Fig. 2.5 in Polar Research Board. Future Science Opportunities in Antarctica and the Southern Ocean. NAP (2011): Cartoon of Southern Ocean circulation and glaciological processes occurring on the coast of Antarctica.
Fuente: nap.edu
Perpetual Ocean (by djxatlanta)
Ocean surface currents around the world during the period from June 2005 through Decmeber 2007. This visualization was produced using NASA/JPL’s computational model called Estimating the Circulation and Climate of the Ocean, Phase II or ECCO2. ECCO2 is high resolution model of the global ocean and sea-ice. ECCO2 attempts to model the oceans and sea ice to increasingly accurate resolutions that begin to resolve ocean eddies and other narrow-current systems which transport heat and carbon in the oceans.The ECCO2 model simulates ocean flows at all depths, but only surface flows are used in this visualization. The dark patterns under the ocean represent the undersea bathymetry. Topographic land exaggeration is 20x and bathymetric exaggeration is 40x. Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.
Fuente: youtube.com
Earth from Space: Summer in bloom (by europeanspaceagency)
The phytoplankton bloom pictured in this Envisat image stretches across the Barents Sea off the coast of mainland Europe’s most northern point, Cape Nordkinn. Although most types of phytoplankton are individually microscopic, the chlorophyll they use for photosynthesis collectively tints the colour of the surrounding ocean waters. This allows for these tiny organisms to be detected from space with dedicated ‘ocean colour’ sensors, such as Envisat’s Medium Resolution Imaging Spectrometer, which acquired this image on 17 August 2011. Credit: ESA.
Fuente: Flickr / europeanspaceagency
Fig. 5 in A. Baucon, Studi Trent. Sci. Nat., Acta Geol., 83, 15 (2008): Selection of body fossils from the Musaeum Metallicum. a. Aldrovandi describes this specimen as a “Rock pregnant with a shell”. b. Aldrovandi describes such fossils as “Astroitis”, referring to the star-like morphology of certain echinoderms and corals. (via Storia della Geologia)
Fuente: mtsn.tn.it
Basalt sample collected from Axial Seamount with the ROV Jason (by InteractiveOceans)
Credit: Carlos Sanchez/Katherine Turner.
Fuente: Flickr / interactiveoceans
Sulfide sample collected with the ROV Jason (by InteractiveOceans)
Credit: Carlos Sanchez/Katherine Turner.
Fuente: Flickr / interactiveoceans
After an earthquake, heavier sand set loose in landslides settles first, while water is still sloshing around, forming recognizable patterns; thicker layers of mud settle on top in calmer waters over a longer time. This core was taken from the sea floor in the Canal de Sud, off the coast of Hispaniola. Source: McHugh et al., 2011. (via LDEO)
Fuente: ldeo.columbia.edu
Draining the Oceans (by mprivoro)
Three fifths of the Earth’s surface is under the ocean, and the ocean floor is as rich in detail as the land surface with which we are familiar. This animation simulates a drop in sea level that gradually reveals this detail. As the sea level drops, the continental shelves appear immediately. They are mostly visible by a depth of 140 meters, except for the Arctic and Antarctic regions, where the shelves are deeper. The mid-ocean ridges start to appear at a depth of 2000 to 3000 meters. By 6000 meters, most of the ocean is drained except for the deep ocean trenches, the deepest of which is the Marianas Trench at a depth of 10,911 meters.
Fuente: youtube.com
Burgesscomplg (by Goniagnostus)
The color version of the Burgess Shale community that John Whorral and I created together.
Fuente: Flickr / samgon
Acumulacions no rodades de foraminífers ficats entremig d’alguns còdols imbricats amb perforacions. (via Bloc de camp)
Fuente: blocdecamp.blogspot.com
Arm of the remotely operated vehicle Jason samples freshly erupted lava on Axial Seamount, July 27, 2011. Credit: Bill Chadwick, Oregon State University. Copyright: WHOI. (via The Earth Institute)
Fuente: earth.columbia.edu
icescape (by highlatitude)
A jagged field of sea ice created by winds acting to converge multiple floes of first year ice.
Fuente: Flickr / eldt
Depending on the part of the ocean, if you were to scoop up a tablespoon of the luscious brown sediments at the seafloor, you would find roughly one million to one billion microbes living in it! If you were to dig deeper down into those sediments, let’s say 10-100 meters or so, you would still find thousands to millions of cells in each tablespoon you dug up. Now, considering that 70% of Earth’s surface is covered by oceans, and that a large part of the seafloor underneath that is covered with some sediments, well then you end up with a massive blanket of sediments chock full of microbes. In fact, some researchers have calculated that marine sediments contain roughly 10 to the power of 30 microbes, which translates to more than half of all microbes on Earth and roughly one-third of all living carbon on Earth (Whitman et al. 1998). Can you believe it?! That’s a huge fraction of life on Earth ‘buried alive’ at the bottom of the ocean.
Fuente: deepseanews.com
Scientists responding to undersea volcanic eruptions are looking for evidence of fresh lava. This lava, photographed on the Galapagos Rift in 2002, was estimated to be less than 10 years old. One way scientists place an age on lava is by looking at its surface. As lava ages, it loses its glassy black luster. Photo: Woods Hole Oceanographic Institution. (via WHOI)
Fuente: whoi.edu
Seafloor chimneys are formed by minerals precipitating out of solution when hot hydrothermal fluids mix with cold seawater. The same process creates large, concentrated deposits of precious metals on the seafloor. Photo courtesy of Maurice Tivey and WHOI Deep Submergence Lab, Cruise Manus 2006 with ROV Jason, Woods Hole Oceanographic Institution. (via WHOI)
Fuente: whoi.edu
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