Soviet Arctic explorer at station NP-8. Photo: Sputnik Searching for a Soviet research station The research station NP-8 was only used by Soviet Arctic explorers until the time the ice sheet began to split. At that time, the scientists could have been urgently evacuated and this abandoned research station continued to float in the ocean until it was destroyed. In the early 1960s, the CIA and the Office of Naval Research under the US Department of the Navy conducted a “hunt” for abandoned Soviet research stations. It is said that the Soviet Union installed American submarine sound detectors there. Initially, the target was station NP-9, detected by a reconnaissance aircraft in May 1961. However, the operation was delayed and the research station was located too far in the waters of the Arctic Ocean. Station NP-9. Photo: Sputnik In the spring of 1962, about 970km from the Canadian Air Force base at Resolute Bay, another abandoned and floating research station – station NP-8 – was accidentally discovered. This is an opportunity America cannot afford to miss. Plan “Skyhook” Considering the fact that an icebreaker can’t make it through the dense ice in the area, a helicopter won’t be able to reach NP-8’s location and the plane’s landing on icebergs Floating is also too dangerous. So the US decided to drop the agents there by parachute. But the question then is how to bring those people back [máy bay]. In the end, the US decided to use the evacuation system that the CIA used in hostile lands, also known as the “Skyhook” – developed in the late 1950s. The plan required a balloon. Helium-inflated small, a 150-meter lift and a low-flying aircraft. When the balloon rises to the required height, agents “tethered” to the balloon by lifting ropes will wait on the ground. The approaching aircraft will use a special scraper or “horn” to pull the rope while releasing the balloon. The lifting rope is then automatically wound into the winch, lifting the agent onto the plane. What happened on the iceberg? Major James Smith, an experienced paratrooper and fluent Russian, and his colleague Captain Leonard A. LeSchack, an expert in submarine surveillance systems, had three days to review everything at the research station. . A few boxes of essential equipment were dropped onto the iceberg with the agents. American B-17 bomber. Photo: Uli Elch (CC BY-SA 4.0) As the US predicted, the Soviet scientists left NP-8 station in a hurry without having time to bring all the equipment. Agents discovered more than 80 documents, collected debris from equipment left behind by the Soviet Union, took about 100 photos. By the time the plane returned to pick them up, the weather in the research station area had turned severely bad. Visibility is reduced and wind is very strong. “I was immediately in a situation that one would imagine was flying into space,” recalls Connie W. Seigrist, the pilot of the plane that arrived to pick up the agents. The “trophies” collected by the agents were easily loaded onto the plane using the Skyhook without any problems, but getting the agents on board was a difficult task. The wind caused LeSchack to be dragged nearly 100 meters until the agent tried to cling to a block of ice. Even after the plane picked up the lifting rope, LeSchack still spent up to 10 minutes “hanging” in the air in cold weather before boarding. After seeing what happened to his colleague, Smith released his balloon and held on to a Soviet tractor left beside the research station for as long as possible. In the end, Smith was lifted without any particular difficulty. “Enjoy your time. This is the first time I’ve been able to relax in about a week,” Smith joked to the pilots after being loaded onto the plane. As a result of Operation Coldfeet, the Americans discovered that the Soviet Union had made significant advances in the field of polar meteorology and polar oceanography. In addition, the US also obtained evidence that the Soviet Union used sonar equipment of US submarines in the Arctic. “Overall, the Soviet Union’s remarkable achievements in drifting stations show that they have a long experience in this field and that these research stations themselves are also very important to the Soviet government.” , the commander of the operation, Colonel John Cadwalader said.

Soviet polar explorer at the NP-8 ice station. Photo: Sputnik On May 28, 1962, two Americans parachuted from the B-17 “Flying Fortress,” landing at Severny Polyus-8 (also known as North Pole-8, or NP-8), a research station destroyed abandoned Soviet Union is drifting on an iceberg in the Arctic Ocean. This was the starting point of one of the CIA’s most unusual operations, which went down in history with the codename Operation Coldfeet. Hunting for Soviet ice stations An iceberg station was only useful to Soviet polar explorers until the moment the iceberg on which it rested began to disintegrate. At that time, the scientists will be urgently evacuated and the abandoned station will continue to drift across the ocean until it is completely destroyed. In the early 1960s, the CIA and the US Department of Navy’s Office of Naval Research conducted a real manhunt for abandoned Soviet ice stations. It is believed that in those places are installed sonar detectors of US submarines. Initially, the CIA’s target was station NP-9, discovered by a reconnaissance plane in May 1961. However, this mission stalled and the ice station was pushed too far into the ocean. A tow truck rescues a car mired in snow at a Soviet observation post on an iceberg in the Arctic. Photo: Getty Images In the spring of 1962, about 970 km from Candian Air Force Base in Resolute Bay, another abandoned iceberg station, NP-8, was unexpectedly discovered. It is an opportunity not to be missed. However, American icebreakers could not make their way through the dense ice in the area, helicopters could not reach the location, and it was too dangerous for an aircraft to land on a disintegrating “buoy”. So the CIA decided to drop the agents by parachute. But the question then is how to bring them back. Ultimately, officials decided to use a system that specialized in evacuating CIA agents from hostile territory known as the ‘Skyhook’ developed by Robert E. Fulton in the late 1950s. The system required a a bread-shaped, helium-filled balloon, a 150-meter extension cord and a low-altitude aircraft. Lockheed P-2 Neptune reconnaissance aircraft. Photo: RBTH When they needed to get out of the location, CIA agents would use helium cylinders to inflate their personal balloons, tie one end of the rope to it, and wrap the other end around them. The balloon will rise into the air, and the rescue plane will use special forks to reach for the rope, then release the balloon. The rope was then wound onto a winch and lifted the agents onto the plane. The rescue Major James Smith, an experienced paratrooper who is fluent in Russian, and his colleague, Lieutenant Leonard A. LeSchack, an expert in submarine surveillance systems, spent three days researching the NP-station- 8. They parachute down to the station with some necessary equipment boxes. As expected by the Americans, the Soviet scientists rushed to leave the NP-8 station without taking all the equipment with them. CIA agents unearthed more than 80 documents, collected fragments of equipment left behind by the Soviets, and took about a hundred pictures. Soviet Arctic Station 9. Photo: Sputnik By the time it was designated to evacuate, the weather at station NP-8 had deteriorated dramatically: Visibility had plummeted and icy winds were rushing in. Connie W. Seigrist, the pilot of the plane that rescued the agents, recalls: “I was immediately thrown into a situation that could have been imagined as if I was flying through space.” The aircraft collected the “trophies” using the ‘Skyhook’ system without much difficulty, but with humans it was even more difficult. The wind dragged LeSchack nearly 100 meters above the ice as he waited for evacuation by trying to anchor himself to a block of ice. Even after the plane had picked up, LeSchack spent another 10 minutes dangling in the icy air before being hoisted onto the plane. Major Smith (water drinker) on a B-17 on June 2, 1962; Lieutenant LeShack in the lower right corner. Photo: RBTH After observing what happened to his colleague, Smith released his balloon and grabbed hold of an abandoned Soviet tractor. In the end, he was lifted without any particular difficulty. As a result of Operation Coldfeet, the Americans discovered that the Soviet Union had made significant advances in the study of polar meteorology and polar oceanography. In addition, they obtained evidence that the Russians were using sonar equipment to detect American submarines in the Arctic. “Overall, the Soviet Union’s remarkable achievements in iceberg stations reflect their long experience in this field and the great importance their government places on it,” said Operation Commander, Captain John Cadwalader noted.

1 How many oceans are there on Earth? Icon 4 oceans Icon 5 oceans Icon 6 oceans Explain Earth has 5 different oceans including: Pacific Ocean, Atlantic Ocean, Indian Ocean, Arctic Ocean, Southern Ocean. The world’s oceans cover about 71% of the Earth’s surface area. 2 The area of ​​the Pacific Ocean is about…? Icon Approximately 155.25 million square kilometers Icon Approximately 165.25 million square kilometers Icon Approximately 175.25 million square kilometers Explain According to Kinky Data, the Pacific Ocean covers an area of ​​about 165.25 million square kilometers, accounting for one-third of the total surface area of ​​the globe. All of the land on Earth combined (about 150 million km2) still cannot cover the surface of this ocean. 3 The Pacific Ocean separates Asia from which of the following continents? Icon Oceania Icon Americas Icon Both answers above Explain The Pacific Ocean stretches from the Arctic Ocean in the north to Antarctica in the south. The width of the east-west is up to 19,800 km, the widest part, separating Asia, Oceania from the Americas. What is the deepest point in the Pacific Ocean? Icon Nearly 9,000 m Icon Nearly 10,000 m Icon Nearly 11,000 m Explain In addition to the largest area, the Pacific Ocean is also the deepest ocean on Earth. Kinky Data information, the Pacific Ocean has an average depth of 4,280 m. The deepest point of the ocean is the Challenger abyss located in the Mariana Trench, nearly 11,000 m deep. This is also the deepest point of the Earth’s crust, 13 times the height of the Burj Khalifa tower – the world’s tallest building in Dubai. If Everest could be placed at the bottom of the Mariana Trench, the world’s tallest mountain would still be nestled beneath the Pacific Ocean. According to INSH, the Mariana Trench was formed about 180 million years ago, but the Challenger abyss was only discovered in 1875. This abyss is one of the hardest places on Earth to explore. The pressure there is 1,000 times greater than the pressure on land. Only three people have ever ventured down to explore by submersible. The sea temperature in Challenger is as low as freezing point (only 1.1 to 3.9 degrees Celsius). Meanwhile, water from vents at the bottom of the abyss can be as hot as 450 degrees Celsius, but cannot boil due to too much pressure. In return, it is rich in minerals, which help sustain many marine creatures in harsh conditions. 5 The name Pacific (Pacific) was given by the explorer from which country? Icon Portugal Icon Netherlands Icon Spain Explain According to the National Ocean Service, in 1519, a Spanish expedition, led by the Portuguese navigator Ferdinand Magellan, set out on a transatlantic voyage to find a route west to the Spice Islands via the Spice Islands. South America. After bravely crossing dangerous seas, including the area now known as the Strait of Magellan, the expedition entered an unknown ocean in November 1520. He called it “pacific”, means peaceful sea, due to the calmness of the water at that time. When Magellan and his expedition reached the Pacific Ocean after a long journey, they thought the Spice Islands were near. They never imagined that the destination was still thousands of miles away and that they were in the largest ocean on Earth. On which side of the equator are most islands in the Pacific Ocean? Icon North Icon Southern Icon West Explain The Pacific Ocean has between 20,000 and 30,000 islands, and most of them are south of the equator. What are the basic types of islands in the Pacific Ocean? Icon 3 types Icon 4 types Icon 5 types Explain Islands in the Pacific Ocean fall into four basic categories: continental islands, volcanic islands, reefs, and raised reefs. The world’s largest floating trash island in the Pacific whirlpool is now 3 times larger than which water? Icon Italy Icon Belgium Icon France Explain The floating garbage island in the Pacific Ocean is an area of ​​​​1.6 million square kilometers located between Hawaii and California, USA. The area of ​​garbage island as of 2018 is nearly three times larger than that of France (643,801 km2). Weighing up to 80,000 tons, the island is a revolving mass of beach debris, consisting of plastic bags, undigested plastic bottles and other trash. Confined to the currents of the North Pacific vortex, a giant eddy and a meeting point for ocean currents, the island of trash rotates between Hawaii and the Pacific Ocean. mainland North America. Four other whirlpools in the world’s oceans also contain millions of tons of polluting debris. Debris floats on the water, but in some places up to meters deep, can have ominous consequences for the environment. Marine mammals, turtles and seabirds may mistake decomposing plastic waste for plankton – their primary source of nutrition – and eat it, damaging the digestive system. How are storms in the Pacific Ocean named? Icon By number of the year Icon Take alternately from the list of countries in the proposed area Icon Both answers above Explain The storm’s name in the Pacific is taken from a database compiled by the World Meteorological Organization’s (WMO) Tropical Cyclone program, according to AccuWeather. “Weather forecasters have a list of special names for hurricanes. Periodically, one name is no longer used and replaced by a new name,” said Jim Andrews, senior meteorologist at the National Weather Service. weather forecaster AccuWeather said. This list includes 140 names selected by countries in the region such as China, Japan, Vietnam and Cambodia. There is no restriction on the number of appellations that may be used in a calendar year. The names in the list are only given to tropical cyclones of hurricane level and above and are taken in order from top to bottom. If the list of names for that year is exhausted, the storm names will be taken from an additional list of 10 names and will be released before the hurricane season begins. A tropical cyclone in the northwest Pacific is classified as a hurricane if it has winds between 73-148 km/h. If the storm has winds of 149 km/h or more, it will be classified as a super typhoon. Result Please work harder! point

The Arctic ice is melting fast. Arctic – the “unusual” ocean The trial was carried out with funding from the Office of Naval Research. Scientists have described the underwater “hydrogen bomb” as one of the mechanisms that arise due to global warming. This is the factor that is changing the nature of the Arctic Ocean faster than almost anywhere else on Earth. It is also evidence that the Arctic sea ice – a source of global climate stability, can disappear more during the year. “The rate at which ice melt in the Arctic is increasing is difficult to predict with precision. This is partly due to all the complex local feedbacks between the ice, the ocean and the atmosphere. This work shows a huge role for warm water from the ocean,” said Jennifer MacKinnon, a scientist, physical oceanographer at Scripps and lead author of the study. The study was published in the journal Nature Communications. Meanwhile, Dr Yueng-Djern Lenn, a physical oceanographer at Bangor University’s School of Ocean Sciences, said: “It has been a privilege for us to collaborate with our American colleagues. Thanks to that, we were able to make biochemical measurements in this field experiment.” According to this expert, the nutrients and isotope data they collect are extremely useful for tracing the origin of the melting ice. It also allows scientists to explore the impact of fluid dynamics on deep nutrient delivery for phytoplankton from shelf seas into the Beaufort Sea basin. The Arctic is an unusual ocean in that it is stratified into layers according to salinity rather than temperature. Most of the world’s oceans have warmer and lighter water near the surface. Meanwhile, the water will be cold, denser underneath. However, in the Arctic there is a cold and clear surface layer, influenced by currents and rapidly melting ice. Warm, relatively salty water enters from the Pacific Ocean through the Bering Strait and then into Barrow Canyon off the northern coast of Alaska. They act as a nozzle when water flows through a narrow passage. Because the water is saltier, it is thick enough to “submerge” or submerge below the arctic surface. This movement creates very warm standing bodies of water hidden beneath the surface of the water. The number of these warm subsurface pools of water has increased over the past decade, the scientists found. These pools of standing water known as “fusion bombs” are only stable enough to last for months or years. They lie beneath the main ice near the North Pole. These standing waters then destabilize the ice, as their heat gradually and steadily diffuses upward to melt the ice. Researchers deploy Fast CTD.u A detailed look at the process The process of warm water sinking has not yet been observed and understood. Without a clear understanding of this process, climate scientists cannot include that important impact in predictive models. The study suggests that warm water flows from the Pacific Ocean have increased over the past decade. This is seen as additional evidence that Arctic sea ice, a source of global climate stability, can disappear for a large part of the year. During a 2018 expedition funded by the US Office of Naval Research, scientists spotted one of these dramatic events for the first time. The team used a combination of new oceanographic instruments developed by the Multilayer Ocean Dynamics group at Scripps. The satellite observations were analyzed by researchers at the University of Miami. The data profile is prepared by the National Oceanic and Atmospheric Administration. Meanwhile, biological samples were collected by British and German scientists working on a project called “Changing the Arctic Ocean”. In addition, many scientists at several other institutions were responsible for detailed data analysis. “The team’s success highlights new perspectives we can see about the natural world when we see it in new ways,” said Scripps oceanographer Matthew Alford. A detailed look at the complex processes that regulate heat transport in the Arctic would not be possible without multiple sets of equipment, he said. These include remote sensing, as well as an automatic profiling machine developed at Scripps. Tools from the Scripps Multiscale Ocean Dynamics team include a customized “Fast CTD” sensor. As a result, quick configurations are created from the ship. In addition, an automatic “Wirewalker” uses energy from ocean waves to drive configuration measurements. These tools allow scientists to obtain high-resolution images of the ocean’s complex processes. From there, get a better understanding of how they work in detail. This work also highlights the importance of collaboration among many institutions, between several US funding agencies, and international partners. Collaborative work with scientists in the UK and Germany shows that warm water below the ocean’s surface also carries unique biochemical properties into the Arctic. This combination of organisms and chemicals is thought to have important implications for the changing arctic ecosystems.

1. Where is the latest named ocean? Icon Atlantic Icon Indian Ocean Icon southern Ocean The correct answer is answer C: The Southern Ocean is the newest ocean to be named. Previously, the Atlantic, Pacific and Indian Oceans were considered to extend as far as Antarctica, the name Southern Ocean did not exist. According to the National Ocean Service. The Southern Ocean is recognized by the US Organization of the US Board on Geographic Names as the water stretching from the Antarctic coast to the 60 degree south latitude line. The boundary of this ocean was proposed to the International Hydrological Organization (IHO) in 2000. This ocean name is widely recognized, however some organizations disagree. The Southern Ocean is 20.3 million square kilometers wide, equivalent to the area of ​​Russia and India combined. Coast stretches for nearly 18,000 km. The average depth is 4,000 – 5,000 m. The deepest point is in the South Sandwich Trench with a depth of 7,236 m. 2. Which ocean is the largest and the deepest? Icon Indian Ocean Icon Pacific Icon Atlantic The Pacific Ocean is the largest and deepest ocean on Earth. With an area of ​​165.25 million km2, this ocean accounts for one third of the total surface area of ​​the globe. All the land on Earth combined (about 150 million square kilometers) still cannot cover the surface of this ocean. The Pacific Ocean stretches from the Arctic Ocean in the north to the Antarctic continent in the south. The widest east-west width is 19,800 km, separating Asia, Oceania from the Americas. The Pacific Ocean has an average depth of 4,280 m. The deepest point of the ocean lies in the Mariana Trench, 10,911 m deep. This is also the deepest point of the Earth’s crust, 13 times the height of the Burj Khalifa – the tallest building in the world in Dubai. If Everest could be placed on the bottom of the Mariana Trench, the world’s highest mountain would still lie underneath the Pacific Ocean. 3. Which ocean is the smallest? Icon southern Ocean Icon Atlantic Icon Arctic Ocean The correct answer is answer C: According to the National Ocean Service, the Arctic Ocean is the smallest ocean on Earth with an area of ​​nearly 14.1 million square kilometers. Even the smallest, it is still nearly 1.5 times larger than the US. The Arctic Ocean borders the United States (the Alaska region), Russia, Canada, Norway and Denmark (the Greenland region). The average depth of this ocean is about 1,205 m, the deepest point is 5,567 m. The Arctic Ocean is almost completely covered by ice most of the year. However, this ocean is not barren. When the ice melts, organisms and nutrients are released into the water. This promotes the growth of algae under the ice. These algae provide food for small organisms, zooplankton, and are a source of food for fish, squid, seals and whales. Some of these larger creatures become prey to polar bears. When the organisms under the ice die, they sink to the ocean floor and feed sponges, anemones and other bottom organisms. 4. Is the Atlantic Ocean larger than the Indian Ocean, right or wrong? Icon It’s correct Icon Wrong The correct answer is answer A: Kindy Data already has a comparison showing that the Atlantic Ocean has an area larger than the Indian Ocean. The Atlantic Ocean is 106.5 million square kilometers wide, covering 20.8 percent of the Earth’s total surface. The average depth is 3,646 m. The deepest point is in the Puerto Rico Trench, at 8,486 m deep. It is surrounded by America to the west, Europe and Africa to the east. The width from east to west is about 9,600 km. Meanwhile, the Indian Ocean is 70.56 million square kilometers wide, covering 13.8 percent of the Earth’s surface. The average depth is 3,963 m. The deepest place is Diamantina trench, 8047 m deep. To the north, this ocean is limited by peninsulas India, Pakistan and Iran, east by Southeast Asia (namely Myanmar, Thailand, Malaysia, Indonesia) and Oceania, to the west by Arab and African islands. The Indian Ocean opens in the south and is bordered by the Southern Ice Ocean. 5. How many tons of gold does the world’s oceans contain? Icon 10 million Icon 20 million Icon 30 millions The correct answer is answer B: Experts estimate that about 20 million tons of gold are still in the ocean. Experts confirm that 1 ton of ocean ore contains about 13 grams of gold, while on land, only 3 to 7 grams of gold per ton of ore. 6. In which sea area is volcanic activity concentrated? Icon South Pacific Icon Indian Ocean Icon Atlantic The correct answer is Answer A: 90% of all volcanic activity on earth is concentrated in the ocean with the largest concentration in the South Pacific. 7. What is the freezing temperature of the oceans about Celsius? Icon -10 degrees C Icon -5 ° C Icon -1.8 degrees C The correct answer is Answer C: Seawater freezes around −1.8 ° C (28.8 ° F). When the temperature of the water drops low enough, ice crystals form on the surface. 8. Which ocean contains the highest salt content in the world? Icon Pacific Icon Atlantic Icon Indian Ocean The correct answer is answer B: Which ocean is the most salty in the world? that is the Atlantic Ocean. In this barn, the average salinity is about 37.9 o / oo. In the Sargasso Sea in the North Atlantic Ocean is the region with the greatest salinity. The reason is that the temperature here is quite high and located far from the mainland, so it does not receive water from rivers and streams. The lightest seawater belongs to the Arctic and Antarctic regions. This is understandable, these are 2 areas with low temperature and continuous rainfall and ice melting. Result Please work harder! point