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2018 Heat Waves
In 2018, several heat waves with temperatures far above the long-time average and droughts were recorded in the Northern Hemisphere: The earth's average surface temperature in 2018 was the fourth highest in the 140 years of record keeping.John Schwartz and Nadia Popovich, 'New York Times,' "2018 Continues Warming Trend, As 4th Hottest Year Since 1880," February 7, 2019 p. 1 It is assumed that the jet stream is slowing down, trapping cloudless, windless and extremely hot regions of high pressure. The jet stream anomalies could be caused by polar amplification, one of the observed effects of global warming. According to the World Meteorological Organization, the severe heat waves across the Northern Hemisphere in the summer of 2018, are linked to climate change, as well as events of extreme precipitation. The results were an increase in mortality of the elderly, severe declines in crop yields, as well as the biggest algae bloom in the Baltic Sea in decades. This had the effect of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heat Wave
A heat wave or heatwave, sometimes described as extreme heat, is a period of abnormally hot weather generally considered to be at least ''five consecutive days''. A heat wave is usually measured relative to the usual climate in the area and to normal temperatures for the season. The main difficulties with this broad definition emerge when one must quantify what the 'normal' temperature state is, and what the spatial extent of the event may or must be. Temperatures that humans from a hotter climate consider normal can be regarded as a heat wave in a cooler area. This would be the case if the warm temperatures are outside the normal climate pattern for that area. Heat waves have become more frequent, and more intense over land, across almost every area on Earth since the 1950s, the increase in frequency and duration being caused by climate change. Heat waves form when a high-pressure area in the upper atmosphere strengthens and remains over a region for several days up to seve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Reactor
A nuclear reactor is a device used to initiate and control a Nuclear fission, fission nuclear chain reaction. They are used for Nuclear power, commercial electricity, nuclear marine propulsion, marine propulsion, Weapons-grade plutonium, weapons production and Research reactor, research. Fissile material, Fissile nuclei (primarily uranium-235 or plutonium-239) absorb single neutron, neutrons and split, releasing energy and multiple neutrons, which can induce further fission. Reactors stabilize this, regulating Neutron absorber, neutron absorbers and neutron moderator, moderators in the core. Fuel efficiency is exceptionally high; Enriched uranium#Low-enriched uranium (LEU), low-enriched uranium is 120,000 times more energy dense than coal. Heat from nuclear fission is passed to a working fluid Nuclear reactor#By coolant, coolant. In commercial reactors, this drives Turbine, turbines and electrical generator shafts. Some reactors are used for district heating, and isotopes, isoto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climate Change In The Arctic
Due to climate change in the Arctic, this polar region is expected to become "profoundly different" by 2050. The speed of change is "among the highest in the world", with the rate of warming being 3-4 times faster than the global average. This warming has already resulted in the profound Arctic sea ice decline, the accelerating melting of the Greenland ice sheet and the thawing of the permafrost Permafrost () is soil or underwater sediment which continuously remains below for two years or more; the oldest permafrost has been continuously frozen for around 700,000 years. Whilst the shallowest permafrost has a vertical extent of below ... landscape. These ongoing transformations are expected to be irreversible for centuries or even millennia. Natural life in the Arctic is affected greatly. As the tundra warms, its soil becomes more hospitable to earthworms and larger plants, and the taiga, boreal forests spread to the north - yet this also makes the landscape more prone to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2018 Northeast Asia Heat Wave
Throughout much of July 2018, a record-breaking heat wave affected large areas of Northeast Asia including Japan, North Korea, South Korea and China. Many areas in Japan experienced temperatures in excess of , and Kumagaya recorded a maximum temperature of on 23 July – the highest ever observed in the country. Synopsis Following flooding and mudslides that lasted from late June through mid-July 2018, an extensive heat wave spread across the Japanese mainland. In the prefectures that had been hit the worst by floods and landslides, Hiroshima, Okayama, and Ehime, 145 people were hospitalized with heat stroke symptoms as temperatures there rose above . On 15 July, 200 out of 927 stations in the nationwide observation network recorded maximum temperatures exceeding . On 23 July, a high temperature of was observed in Kumagaya, northwest of Tokyo. This constitutes an all-time high for all of Japan. Many cities recorded temperatures near on this day. In Kyoto, temperatur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2018 North American Heat Wave
Eighteen or 18 may refer to: * 18 (number) * One of the years 18 BC, AD 18, 1918, 2018 Film, television and entertainment * ''18'' (film), a 1993 Taiwanese experimental film based on the short story ''God's Dice'' * ''Eighteen'' (film), a 2005 Canadian dramatic feature film * 18 (British Board of Film Classification), a film rating in the United Kingdom, also used in Ireland by the Irish Film Classification Office * 18 (''Dragon Ball''), a character in the ''Dragon Ball'' franchise * "Eighteen", a 2006 episode of the animated television series ''12 oz. Mouse'' Science * Argon, a noble gas in the periodic table * 18 Melpomene, an asteroid in the asteroid belt Music Albums * ''18'' (Moby album), 2002 * ''18'' (Nana Kitade album), 2005 * '' 18...'', 2009 debut album by G.E.M. * ''18'' (Jeff Beck and Johnny Depp album), 2022 Songs * "18" (5 Seconds of Summer song), from their 2014 eponymous debut album * "18" (One Direction song), from their 2014 studio album ''Four'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2018 Attica Wildfires
A series of wildfires in Greece, during the 2018 European heat wave, began in the coastal areas of Attica (region), Attica in July 2018. 104 people were confirmed dead from the Mati fires. The fires were, at that time, the second-deadliest wildfire event in the 21st century, after the 2009 Black Saturday bushfires in Australia that killed 173. Over 700 residents were evacuated or rescued, mainly from the seaside settlements located north of the port town of Rafina, Greece, Rafina, namely Kokkino Limanaki and Mati, Greece, Mati, where rescuers found 26 corpses trapped just meters away from the sea, apparently hugging each other as they died. Boats also recovered corpses from the water, and rescued hundreds of people from beaches and the sea. Two people drowned when the boat rescuing them from a hotel in Mati capsized. Μore than 4,000 residents were affected by the wildfires. The Greek prime minister Alexis Tsipras declared a state of emergency in Attica, and announced a three-day ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2018 Sweden Wildfires
In the summer of 2018, a large number of wildfires (primarily forest fires) occurred throughout much of Sweden. According to the Swedish Civil Contingencies Agency, they are the most serious in the country in modern history. The summer was unusually warm and dry, significantly raising the risk of fire. Firefighters from multiple countries were involved in fighting the fires. Many people were evacuated from their homes, but there were no fatalities. Heatwave and cause of fire Sweden experienced an unusually long heatwave and had only of rain from the beginning of May to late July. May 2018 was the warmest May and July 2018 was the warmest July ever recorded in Sweden. As of mid-July, temperatures in Scandinavia were more than above normal. Several of the fires were started by people using disposable barbecues, despite temporary bans on their usage put in place due to the dry weather conditions. Some were started by lightning strikes. Wildfires also occurred in the neighbou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2018 United Kingdom Wildfires
Starting on 24 June 2018 and continuing throughout the summer, a record-breaking series of wildfires burned across the United Kingdom. The two largest fires, which were declared major incidents, burned over each and broke out on Saddleworth Moor in Greater Manchester and Winter Hill (North West England), Winter Hill in Lancashire. Other large fires broke out in Glenshane Pass in County Londonderry, Northern Ireland (640 acres), Epping Forest, in London and in the Vale of Rheidol in Ceredigion, Wales. The Saddleworth Moor fire has been described as the largest English wildfire in living memory. Most of the wildfires occurred during the first official heatwave in the United Kingdom since June 2017, with temperatures reaching above for several days, making the hottest June in the country since 1995, and the driest June for over ten years in large parts of the United Kingdom, exacerbating the crisis. A wildfire started on the Staffordshire Moorlands on 9 August and, despite rain, ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
