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Jeden z księżyców Saturna oficjalnie stał się kolejnym możliwym siedliskiem pozaziemskich mikrobów. Naukowcy z Europy i z USA odkryli, że lodowa powierzchnia Enceladusa kryje wody ocean. Dolphin Days is a festive celebration of our natural world starring the ocean’s most playful ambassador, the Atlantic Bottlenose Dolphin. The amount of plastic in the ocean is set to treble in a decade unless litter is curbed, a major report has warned. JPI Oceans   •   Rue du Trône 130, 1050 Brussels, Belgium Tel. +32 (0)2 626 16 60   •   Fax: +32 (0)2 626 16 61   •   jpioceans@rcn.no Website developed and maintained by VLIZ | Privacy and Cookie policy The total mass of the hydrosphere is about 1.4 quintillion metric tons (7018140000000000000♠1.4×1018 long tons or 7018150000000000000♠1.5×1018 short tons), which is about 0.023% of Earth’s total mass. Less than 3% is freshwater; the rest is saltwater, almost all of which is in the ocean. The area of the World Ocean is about 361.9 million square kilometers (139.7 million square miles),[9] which covers about 70.9% of Earth’s surface, and its volume is approximately 1.335 billion cubic kilometers (320.3 million cubic miles).[9] This can be thought of as a cube of water with an edge length of 1,101 kilometers (684 mi). Its average depth is about 3,688 meters (12,100 ft),[9] and its maximum depth is 10,994 meters (6.831 mi) at the Mariana Trench.[29] Nearly half of the world’s marine waters are over 3,000 meters (9,800 ft) deep.[16] The vast expanses of deep ocean (anything below 200 meters or 660 feet) cover about 66% of Earth’s surface.[30] This does not include seas not connected to the World Ocean, such as the Caspian Sea. Oceans Deeply is designed to help you understand the complex web of environmental, social and economic issues facing the world’s oceans. Our editors and expert contributors work to bring you greater clarity and comprehensive coverage of ocean health. Supercritical fluids, although not liquids, do share various properties with liquids. Underneath the thick atmospheres of the planets Uranus and Neptune, it is expected that these planets are composed of oceans of hot high-density fluid mixtures of water, ammonia and other volatiles.[86] The gaseous outer layers of Jupiter and Saturn transition smoothly into oceans of supercritical hydrogen.[87][88] The atmosphere of Venus is 96.5% carbon dioxide, which is a supercritical fluid at its surface. An expert in underwater filming, Orla Doherty is one of the lucky few to have explored the deepest parts of the ocean. Our living planet is only as healthy as its oceans. These vast bodies of water cover more than two-thirds of Earth’s surface and are home to some of our most spectacular and treasured life. Oceans regulate our climate, produce half the oxygen we breathe, fuel the water cycle that produces rain and freshwater, sustain the livelihoods of millions, and provide nourishment for nearly 3 billion people. The scaly foot snail is another rare creature only known to live in two spots in the ocean, both of which are licensed for mining. In addition, the Institute fosters the democratization of ocean science by offering media workshops and immersive educational experiences to the public. We actively connect artists and advocates, scientists and students, media-makers and policy-makers in an effort to engage them in collective artistic approaches that address ocean issues. Earth may be the blue planet, but beneath the ocean waves lies a vast forest of green.  Supercritical fluids, although not liquids, do share various properties with liquids. Underneath the thick atmospheres of the planets Uranus and Neptune, it is expected that these planets are composed of oceans of hot high-density fluid mixtures of water, ammonia and other volatiles.[86] The gaseous outer layers of Jupiter and Saturn transition smoothly into oceans of supercritical hydrogen.[87][88] The atmosphere of Venus is 96.5% carbon dioxide, which is a supercritical fluid at its surface. Together we’re building an online community for people to share ideas, collaborate, and invent technology that could help keep our oceans healthy. Thank the ocean with every breath you take, says Dr Sylvia Earle Thank the ocean with every breath you take, says Dr Sylvia Earle The major oceanic divisions – listed below in descending order of area and volume – are defined in part by the continents, various archipelagos, and other criteria.[9][12][18] Dr Bruno Simões tells us how he pursued sea snakes from the mangroves to the open ocean to learn about their vision. The ocean has a significant effect on the biosphere. Oceanic evaporation, as a phase of the water cycle, is the source of most rainfall, and ocean temperatures determine climate and wind patterns that affect life on land. Life within the ocean evolved 3 billion years prior to life on land. Both the depth and the distance from shore strongly influence the biodiversity of the plants and animals present in each region.[41] Exploring and studying them is critical to protect these valuable resources for future generations. Uncover why we need to protect the oceans, find out how to get involved and dive into cutting-edge research about life underwater. Endangered Waves can empower and incentivize surfers (there are 24 million worldwide) to monitor the health of their coastlines through crowdsourced data. Surfers can use this app to create crowdsourced data to identify and then reduce hazards in their local surf breaks. In the US, tourism and recreation comprise 72% of employment in the ocean economy and 31% of its gross value. Creating apps that cater to this market isn’t indulgent, it’s good business sense. Czy wieloryb naprawdę jest taki duży? Kto zaprzyjaźnił się z ośmiornicą? Jaki konik mieszka w oceanie? Poznajcie tajemnice podwodnego świata i jego mieszkańców. It is often stated that the thermohaline circulation is the primary reason that the climate of Western Europe is so temperate. An alternate hypothesis claims that this is largely incorrect, and that Europe is warm mostly because it lies downwind of an ocean basin, and because atmospheric waves bring warm air north from the subtropics.[39][40] But today, Pardo’s vision is becoming reality as the UN’s International Seabed Authority has drawn up maps dividing the ocean into blocks. Obszar szelfu i stoku kontynentalnego są zbudowane ze skorupy kontynentalnej i przez geologów zaliczane do kontynentów. Obszary basenów oceanicznych, rowów oceanicznych i grzbietów śródoceanicznych mają skorupę typu oceanicznego i tworzą właściwy wszechocean. Formą pośrednią są tzw. mikrokontynenty – obszary położone na dnie oceanu, całkowicie lub prawie całkowicie przykryte wodą, a zbudowane ze skorupy kontynentalnej lub mieszanej. hello@oceanobservations.com Według tektoniki płyt skorupa ziemska powstaje w przybliżeniu w takim samym tempie, w jakim jest niszczona w strefach subdukcji, a łączna objętość oceanów nie ulega zmianie (nie licząc rozrostu i topnienia lodowców). Jedne oceany mogą powiększać się tylko kosztem innych; w historii Ziemi istniały zbiorniki oceaniczne, które zamknęły się na skutek ruchu kontynentów (paleooceany), a ich osady wypiętrzyły się tworząc łańcuchy górskie (m.in. Himalaje). Dzisiejsze oceany Atlantycki, Arktyczny i Indyjski są geologicznie młodymi oceanami, które powstały w erze mezozoicznej i rozrastają się obecnie kosztem Pacyfiku. Seychelles has announced two new Marine Protected Areas covering 210,000 square kilometers of biodiverse ocean waters. Although no-one has yet started mining the ocean floor, dozens of research expeditions are under way “at an intense pace”, says Michael Lodge, from the International Seabed Authority. As Sharp puts it, the revelation that the deep sea mining project was fake was “a sudden shock” to other mining companies and also to diplomats at the UN who were right in the middle of negotiating future rights to ocean minerals. Share prices tumbled amid a wave of recriminations. In fact, getting to the deepest reaches of the ocean is so expensive that some people – like Oscar-winning director James Cameron – take it upon themselves to explore underwater spaces rarely visited by humans. The challenges we face in managing our oceans effectively also present opportunities for innovation, collaboration, and actions. 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