Episoder
-
Throughout the course of the second leg of the Okeanos Explorer Northeast U.S. Canyons 2013 Expedition, scientists on the ship and on shore, along with the remotely operated vehicle (ROV) team and ship's crew, were joined by thousands of online viewers as we all explored canyons and intercanyons and Mytilus Seamount along the northeastern coast of the United States. This video captures highlights from the 15 dives that were conducted during Leg 2 of the expedition from the ROV Deep Discoverer and the Seirios camera platform.
-
Nine ROV dives into the Galapágos Rift 2011 Expedition, the science team finally discovered the type of hydrothermal vent community they had been searching for. Clusters of tube worms, limpets, mussels, and anemones were seen to inhabit cracks in the lava bed where mineral-rich, geothermally-heated water 'vents' out. Two species of tube worms were found in abundance: the giant Riftia pachyptila and also the much smaller, never before observed in the Galápagos, Tevnia jerichonana. Brachyuran crabs, vent shrimp, and scale worms clung not only to the surrounding rock but also to the tube worms themselves in some cases. Extensive fields of dead and living clams surrounded the individual pockets of venting. Video courtesy of NOAA Okeanos Explorer Program, Galapágos Rift Expedition 2011.
-
Mangler du episoder?
-
Scientists funded by NOAA and the National Science Foundation recorded the deepest erupting volcano yet discovered, describing high-definition video of the undersea eruption as spectacular. Eruption of the West Mata volcano, discovered in May 2009, occurred nearly 4,000 feet below the surface of the Pacific Ocean, in an area bounded by Fiji, Tonga and Samoa.
We found a type of lava never before seen erupting from an active volcano, and for the first time observed molten lava flowing across the deep-ocean seafloor, said the missions Chief Scientist Joseph Resing, a chemical oceanographer at the University of Washington who collaborates with NOAA through the Joint Institute for the Study of the Atmosphere and Ocean. Though NOAA and partners discovered a much shallower eruption in 2004 in the Mariana Arc, the deeper we get, the closer the eruption is to those that formed most of the oceanic crust.
This spectacular sequence is a close view of the eruption with violent magma degassing events producing bright flashes of hot magma. Lava is blown up into the water before settling back to the seafloor, and large plugs of lava flow rapidly down the slope. In the foreground is the front of the Jason remotely-operated vehicle (ROV) with sampling hoses. The area in view is about 6-10 feet across in an eruptive area approximately 100 yards that runs along the summit. Video courtesy of National Science Foundation and National Oceanic and Atmospheric Administration (NOAA). -
Scientists funded by NOAA and the National Science Foundation recorded the deepest erupting volcano yet discovered, describing high-definition video of the undersea eruption as spectacular. Eruption of the West Mata volcano, discovered in May 2009, occurred nearly 4,000 feet below the surface of the Pacific Ocean, in an area bounded by Fiji, Tonga and Samoa.
We found a type of lava never before seen erupting from an active volcano, and for the first time observed molten lava flowing across the deep-ocean seafloor, said the missions Chief Scientist Joseph Resing, a chemical oceanographer at the University of Washington who collaborates with NOAA through the Joint Institute for the Study of the Atmosphere and Ocean. Though NOAA and partners discovered a much shallower eruption in 2004 in the Mariana Arc, the deeper we get, the closer the eruption is to those that formed most of the oceanic crust.
This spectacular sequence is a close view of the eruption with violent magma degassing events producing bright flashes of hot magma. Lava is blown up into the water before settling back to the seafloor, and large plugs of lava flow rapidly down the slope. In the foreground is the front of the Jason remotely-operated vehicle (ROV) with sampling hoses. The area in view is about 6-10 feet across in an eruptive area approximately 100 yards that runs along the summit. Video courtesy of National Science Foundation and National Oceanic and Atmospheric Administration (NOAA). -
Watch a NOAA video podcast on the NOAA ship Okeanos Explorer, "America's Ship for Ocean Exploration," commissioned in Seattle, WA August 13th, 2008 the ship and crew will undergo field tests off the U.S. West Coast to train operators and test concepts of operations and equipment associated with the ship and its sensors and systems. All this leads to the ship's first full field season of operations in 2009, and a new way of exploring the ocean.
-
Listen to a NOAA video podcast on the The NOAA ship Okeanos Explorer, "America's Ship for Ocean Exploration," commissioned in Seattle, WA August 13th, 2008 the ship and crew will undergo field tests off the U.S. West Coast to train operators and test concepts of operations and equipment associated with the ship and its sensors and systems. All this leads to the ship's first full field season of operations in 2009, and a new way of exploring the ocean.
-
Watch a NOAA video podcast on the AUVfest 2008 expedition that will take place in Rhode Island’s Narragansett Bay from May 12 through May 23. The event is a demonstration of 13 AUV systems originally developed by the Office of Naval Research (ONR) for mine hunting. As part of a collaborative effort to examine and evaluate the dual use of this technology, eight of these AUVs, and their associated sensors and systems, will also be sent on archaeological missions to shipwreck sites in Narragansett Bay.
-
Listen to a NOAA podcast on the AUVfest 2008 expedition that will take place in Rhode Island’s Narragansett Bay from May 12 through May 23. The event is a demonstration of 13 AUV systems originally developed by the Office of Naval Research (ONR) for mine hunting. As part of a collaborative effort to examine and evaluate the dual use of this technology, eight of these AUVs, and their associated sensors and systems, will also be sent on archaeological missions to shipwreck sites in Narragansett Bay.
-
Breathtaking... Nearly 20 years after first finding the sunken remains of the R.M.S. Titanic, marine explorer Robert Ballard returned in June 2004 helped by the National Oceanic and Atmospheric Administration (NOAA), Office of Ocean Exploration to study the ship's rapid deterioration. The team worked aboard the NOAA Ship Ronald H. Brown from May 30 through June 9 spending 11 days at the wreck site, mapping the ship and conducting scientific analysis of its deterioration. Using the Institute for Exploration (IFE) remotely operated vehicles (ROV's) Hercules and Argus, to conduct a sophisticated documentation of the state of Titanic was not possible in the 1980's. This "Look, don't touch" mission utilized high-definition video and stereoscopic still images to provide an updated assessment of the wreck site at an enormous depth of 3,840 meters (12,600 feet). As the nation's ocean agency, NOAA has a vested interest in the scientific and cultural aspects of the Titanic, and in its appropriate treatment and preservation. NOAA's focus is to build a baseline of scientific information from which we can measure the shipwreck's processes and deterioration, and then apply the knowledge we gain to other deep-water shipwrecks and submerged cultural resources. Video courtesy of the R.M.S. Titanic Expedition Team 2004, ROI, IFE, NOAA-OE.
-
This 2007 expedition will begin in the port of Manila and take us south through the Sulu Sea to our study site, southeast of the Sulu Archipelago, where the bottom falls off abruptly to the sea floor thousands of meters below. Lying just north of the equator, the Celebes Sea is the center of the most biologically diverse area of the world’s ocean.
-
Watch a NOAA video podcast on the New Zealand American Submarine Ring of Fire 2007 (NZASRoF'07) expedition that will take place on the Kermadec Arc, the second Ocean Explorer expedition to the Kermadec Arc. Video courtesy of New Zealand American Submarine Ring of Fire 2007 Exploration, NOAA Vents Program, NOAA-OE.
-
Watch a NOAA video podcast on the Submarine Ring of Fire 2004 (SRoF'04) expedition to the Mariana Arc. This movie shows the discovery of the Champagne vent at northwest Eifuku volcano, where bubbles of liquid carbon dioxide are actively venting from sea-floor hot springs. This unusual phenomenon is due to the fact that the emissions from NW Eifuku volcano are particularly gas-rich. The high pressure at this depth keeps the carbon dioxide in a liquid state. Scientist discovered th Champagne vent at a depth of 1,607 meters (5272 feet more than 1 mile deep). Video courtesy of Submarine Ring of Fire 2004 Exploration, NOAA Vents Program, NOAA-OE.
-
Experience what it is like to be a Twilight Zone technical diver studying the biodiversity of creatures living in the Caribbean Sea between Cuba and Jamaica. Little Cayman has some of the steepest drop-offs in the Caribbean because it is perched on the edge of the abyss of the Cayman Trench 7500 meters below the crystal-clear surface waters. Video footage courtesy of Marc Slattery, Cayman Islands Twilight Zone 2007 Exploration, NOAA-OE.
-
This 2007 expedition to the Cayman Islands will set new benchmarks in ocean exploration technical diving research. Remarkable advances in this technology will allow for divers to share the excitement of the rarely explored Twilight Zone discoveries in a much more personal way. Video footage courtesy of Shawn Harper, The Hidden Ocean, Arctic 2005 Exploration, NOAA-OE.
-
This 2007 expedition to the Cayman Islands will set new benchmarks in ocean exploration technical diving research. Remarkable advances in this technology will allow for divers to share the excitement of the rarely explored Twilight Zone discoveries in a much more personal way. Video footage courtesy of Shawn Harper, The Hidden Ocean, Arctic 2005 Exploration, NOAA-OE.
-
In the frigid waters off the coast of Greenland scientists are getting valuable data from narwhals - the most ice loving whales in the world. Narwhals, beluga and bowhead whales, which you can hear in the background, make their homes in the Arctic. There are about 100,000 narwhals in the world, and the vast majority of them - about 50,000 to 70,000 - live in the Arctic waters of Greenland. Audio courtesy of Tracking Narwhals in Greenland 2006-2007, Kristin Laidre, NOAA-OE.
-
The Crevices at 708 meters (2323 feet) of a hydrothermal vent site are occupied by thriving aggregations of cutthroat (synaphobranchid) eels. These eels, which have now been identified as Dysommina rugosa, are known from trawl samples in both the Atlantic and Pacific oceans, but have never before been studied in their natural habitat. The only common metazoan (multicellular) animals occupying these low-temperature hydrothermal vents, preliminary work indicates that they use the vent only as a place to live. They seem to feed not on chemosynthetic bacteria, but on crustaceans that pass by Nafanua’s summit in the currents. Video footage courtesy of UCSB, Univ. S. Carolina, WHOI, NOAA-OE.
-
While much of under-ice diving is similar to regular diving, there are a few important differences. First, the divers wear drysuits instead of wetsuits. These dry suits are sealed at the wrist and the neck and don't let any water in beyond the seals. Second, under-ice diving is usually performed using compressed air, not other mixed gases and the regulators used are specifically designed to be used in temperatures below freezing. Most different from regular diving operations, under-ice divers are tethered to the surface. Video footage courtesy of Shawn Harper, The Hidden Ocean, Arctic 2005 Exploration, NOAA-OE.
-
Watch a NOAA video podcast on the deep-sea cold water corals located and sampled from poorly studied middle slope (360-800 meter) coral banks, from Cape Lookout, NC to southeastern FL covering over 650 nautical miles (1,205 km). Video courtesy of Ross et al, NOAA-OE, HBOI and Art Howard.
-
Watch a NOAA video podcast on the Submarine Ring of Fire 2004 (SRoF'04) expedition to the Mariana Arc. Video taken by the ROPOS ROV at the edge of Brimstone Pit near the summit of NW Rota-1 submarine volcano, showing ash and sulfur-laden eruptions from the crater. The crater is at a depth of 555 meters (1820 feet). The yellow color of the billowing clouds is due to droplets of molten sulfur in the plume bursts. Video courtesy of Submarine Ring of Fire 2004 Exploration, NOAA Vents Program, NOAA-OE.
- Se mer
