National geographic home weather station for tv,nat geo tv asia schedule,electromagnetic field nptel pdf,national geographic dvd set amazon - PDF 2016

The eruption of Hawaii’s Kilauea volcano inspires the formation of a waterspout in this undated photo.Waterspouts can emerge the way traditional tornadoes do, but not always. A Lake Michigan lighthouse takes the brunt of a frigid winter in Saint Joseph, Michigan.The southeastern shores of all of the Great Lakes often experience lake-effect snow. A funnel cloud rips through a trailer park near Cheyenne, Wyoming, in this undated photo. Surfers ride a huge wave at Waimea Bay, Hawaii, during the 2009 Eddie Aikau memorial surf contest.To honor its fearless namesake, the competition is held only in extreme conditions. Adding insult to injury, this dangerously large hail rode in on the coattails of a tornado that hit Joplin, Missouri, in 2011.Hail emerges from storm clouds only after repeatedly tumbling up and down within the cloud. An Alabama store owner assesses the damage after Hurricane Frederic ravaged Dauphin Island, and his business, in 1979.The Category 3 storm made landfall on the evening of September 12 with winds recorded at 145 miles per hour and an up-to-15-foot storm surge.
A tornado heads toward two cars on a country road near Campo, Colorado.Technically considered a part of thunderstorms, tornadoes can cover tens of miles of ground. Rain brings a double rainbow to the town to Puerto Natales in southern Chile.Rainbows are a simple, ordered display of visible light reflected off of water droplets in the atmosphere.
A vessel makes its way across Drake Passage in what some scientists call the Southern Ocean between South America and Antarctica.The passage, which takes shipping vessels around Cape Horn at the tip of Chile and Argentina, is one of the most dangerous in the world. The National Geographic Society aims to be an international leader for global conservation and environmental sustainability.
Typhoon Usagi killed at least 25 people after crashing ashore in southern China on September 23. A powerful typhoon that struck Hong Kong on Sunday killed at least 30 people and forced the evacuation of thousands of people on the China mainland, and hundreds of flights were canceled. Typhoon Usagia€”Japanese for rabbita€”is the third and strongest Pacific typhoon to form this year. If you've never lived in Asia, you might be wondering what it feels like to experience a typhoon. To be classified as a hurricane, typhoon, or cyclone, a storm must reach wind speeds of at least 74 miles per hour (119 kilometers per hour).


While the Atlantic hurricane season runs from June 1 through November 30, the typhoon and cyclone seasons follow slightly different patterns.
Whatever you choose call them, these monster storms are powerful natural events with the capacity to wreak some serious havoc.
According to NOAA's National Hurricane Center, the average hurricane eyea€”the still center where pressure is lowest and air temperature is highesta€”stretches 30 miles (48 kilometers) across, with some growing as large as 120 miles (200 kilometers) wide.
The strongest storms, equivalent to Category 5 on the Saffir-Simpson scale, have sustained winds that exceed 155 miles per hour (250 kilometers per hour). With the aid of satellites and computer models, such storms can be predicted several days in advance and are relatively easy to track. In recent years, scientists have debated whether human-caused global warming is affecting hurricanes by making them stronger or causing them to occur more frequently. In theory, warmer atmospheric temperatures should lead to warmer sea surface temperatures, which should in turn support stronger hurricanes. The number of Category 4 and 5 hurricanes worldwide nearly doubled from the early 1970s to the early 2000s.
Explore 120 years of amazing discoveries, fascinating maps, and the world's best photography. Photographers Orsolya and Erlend Haarberg documented landscapes and wildlife in northern Sweden. Tangled strands of the Rapa River flow below the slopes of Sarek National Park, one of six reserves that make up Sweden’s Laponian Area World Heritage site.
Veiled in melting snow and ice, Laponia warms in the summer, inviting city dwellers to venture above the Arctic Circle and experience the area’s splendid solitude. Scalloped patterns in gray marble were among the phenomena that awed geologist Axel Hamberg, who conducted a decades-long study of Sarek National Park.
The Siberian jay is a year-round resident of Stora Sjöfallet National Park, where the birds are known to hikers and foresters as fearless campsite companions, always on the watch for scraps of food.
Sunlight reveals a plume of ice crystals (foreground) on a bone-cold day in Muddus National Park.


Every season in Laponia brings a gift to the eye, including a female rock ptarmigan in winter garb.
Footprints of a glacier can be seen from above Muddus National Park, where peaty string fens form in glacier-dug lowlands when the frozen ground melts in spring.
Go behind-the-scenes with our storytellers and join conversations about photography, art, and journalism. The interaction of all of these elements creates an electrical charge that sparks lightning. Many are created when near-surface winds suddenly change direction under a cloud that is producing a growing updraft.
The photographer snapped this shot from a quarter mile away before taking cover in his basement.These violent twisters form when the updrafts of air that supply storms with warm, humid air become a vortex, or high-speed whirlwind.
When individuals pledge to use less water in their own lives, our partners carry out restoration work in the Colorado River Basin.
But as Hurricane Sandy showed recently, predicting the path that a hurricane or typhoon or cyclone will take after it's formed is still tricky. Moreover, both the duration of tropical cyclones and their strongest wind speeds have increased by about 50 percent over the past 50 years. In summer, clouds rolling in from the Norwegian Sea make Laponia a soggy landscape of rushing rivers punctuated by wetlands and bogs.
Laced with bogs and marshlands, Muddus proved so difficult to log that it now preserves stands of pine trees hundreds of years old.



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