Extreme weather why? Countries scientists explanations

Confucius News reports, the European region sustained recent strong cold air attacks encounter, and some areas appear in one hundred to minimum temperatures, the past week of cold weather in this region have killed more than 160 people's life. Influence by cold snap, Ukraine, Poland, Romania, Serbia in parts of central and eastern European countries such as minimum temperature fell below minus 30 degrees Celsius. Among them, the Ukraine worst hit, according to media reports 3, Ukraine, bitter cold has killed 101 people, of which 64 people froze to death on the street. In Poland, strong cold snap has caused nearly 30 people were killed. Romania on February 2, the health ministry said, cold already killed 22 people in. By February 3,, cold snap in Serbia has killed 6 people, 1 people missing, 5, the country's state of emergency declared nationwide. In addition to these a few worst hit the country, Italy, Austria, the Czech republic, Slovakia and Greek and other countries also have people died in cold weather. February 3,, pedestrian take snow walk street in Rome, Italy.

Recently, extreme cold the weather became worldwide common topic. One photo shocking: Venice, Italy icy river, lake Geneva Switzerland frozen car, Japan the fly snow...... For Europe and other regions in the world appear winter, countries scientists from different angles that are given.

Chinese scientists: the arctic cold air lead to severe winter weather

According to xinhua news agency, China's meteorological science research institute researchers LiuLong to very cold weather timely the explanation is: this year the arctic "out move" index has a negative value, namely the arctic areas outside the arctic than the pressure of the high, the arctic cold air so spread to areas outside the North Pole, resulting in Europe and east Asia up all cold weather.

However, for future climate change direction, and weather experts are differences, there was the earth "continue to warming" and "into the little ice ages" two completely different judgment. To this, the reporter interviews to the authority of the weather experts also talked about the opinions of his own.

The China meteorological administration the national climate center senior engineer WangQiYi etc many climate experts argue that current appeared in Europe of extremely cold weather does not mean that the global warming trend change. Instead, global warming is caused the extremely cold weather the deep reason. WangQiYi said, the global warming, especially the arctic warming significantly, the arctic sea ice melting arctic highly field caused by increased, that led to the recent cold air in the arctic to spread high latitudes.

WangQiYi said, a study of global warming time scale, can not only see a few years time, at least 30 years to see the average of the change. "From 1971 to 2000, we see global warming is sure, every 10 years, but rise 0.19 degrees Celsius temperature increases trajectory is not a straight line, but fluctuation rise among, also can appear occasionally individual areas of the short term gets cold". Experts think, the Eurasian extremely cold weather epiphenomenon belongs to individual, can't be judge long-term climate change the vane of cold.

The European region sustained recent strong cold air attacks encounter, and some areas appear in one hundred to minimum temperatures, the past week of cold weather in this region have killed more than 160 people's life. Influence by cold snap, Ukraine, Poland, Romania, Serbia in parts of central and eastern European countries such as minimum temperature fell below minus 30 degrees Celsius. Among them, the Ukraine worst hit, according to media reports 3, Ukraine, bitter cold has killed 101 people, of which 64 people froze to death on the street. In Poland, strong cold snap has caused nearly 30 people were killed. Romania on February 2, the health ministry said, cold already killed 22 people in. By February 3,, cold snap in Serbia has killed 6 people, 1 people missing, 5, the country's state of emergency declared nationwide. In addition to these a few worst hit the country, Italy, Austria, the Czech republic, Slovakia and Greek and other countries also have people died in cold weather. February 2,, in the city, southwest Serbia strategy; and a man full of icicles from the window look outside.

The world meteorological organization: the Eurasian cold wave from the arctic out dynamic change

The world meteorological organization 7,, in Geneva news releases said, according to the information provided members meteorological organization, recent Eurasia moved in part in cold weather and the arctic atmosphere general circulation phenomenon-" North Pole out move "change closely related.

Usually, the arctic winter by depression system dominated by high pressure dominated by mid-latitude area. At this time, the arctic is the phase out move in, limit the cold air to the south polar expansion. But the world meteorological organization says, nearly since period of time, the arctic out move in a negative the phase, lead to cold air assault to Eurasia moved south area, and the warm air rises up the arctic, appear "south cold north warm" situation.

Affected by this, the European region sustained recent low temperature. Latvia, belarus, Poland, countries such as Ukraine in the low temperature of minus 30 degrees Celsius, the temperature in parts of northern Russia once dropped to minus 37 degrees Celsius. Many areas in east Germany temperatures drop to 20 degrees below zero below, Western Europe some areas appear minus 10 to 15 degrees Celsius in low temperature. In addition, north and east Asia in much of central Asia than normal temperature is also low.

Instead, the north Atlantic, Iceland to the arctic air temperature on the high side. The arctic ocean is located in svalbard recent continuous appear above freezing five degrees Celsius temperature, higher than the Mediterranean's milan and Istanbul, etc. In North America than normal temperature also is on the high side.

The world meteorological organization says, similar phenomena in the last 10 years have occurred several times, in Europe in 2009 to 2010 winter experienced a similar cold weather.

Visitors ride in Malawi in FuYunXian sledge's on the sea cocoa xue yuan visit (January 17 taken). Xinjiang's FuYunXian cocoa sea is now at the coldest season (1 in an average temperature of-37 ℃), FuYunXian use opportunely "HanJi" travel article starts. On January 17,, at the HanJi cocoa experience tour activities, but came to experience "extreme weather" reporter, tourists take marat sledge, in-depth xue yuan, enjoy the magnificence of China HanJi. Cocoa is located in "the sea of the xinjiang uygur autonomous region FuYunXian northern city of northeast 48 kilometers altai mountain, the kazakh means" green jungle ". The lowest temperature "cocoa has more than 50 ℃ below zero, has" the Chinese HanJi, "said.

Japanese institutions: la Nina, and other comprehensive causes cold of Japan

For the present hit Japan's cold wave causes, the Japan meteorological agency said that both the influence of the Siberian high here, also have a la Nina interference. Japan Marine research and development institutions think, climate warming arctic sea ice decrease, also indirectly lead to the cold weather.

Japan's meteorological agency recently noted, and near Japan from the second half of last year December, the first by the influence of the Siberian high, continue in winter type air pressure under control. In addition, la Nina has also increased the severity of the cold.

La Nina is refers to the equatorial Pacific eastern and central water big scope for abnormal getting cold phenomenon. The Japan meteorological agency said, by la Nina influence, the Philippines surrounding waters of the water temperature rise instead, the warming, air convection activity increasing, from west to east PianXiFeng of-" the subtropical rapids "to the north by extrusion, slow progression. At the same time, it should be located in the high PianXiFeng another climate "very feng rapids in March to the south. In Japan over the nearby, two strands of PianXiFeng confluence, attract around the arctic cold wave down from the north, and the western coverage of Japan. Since January 23 on, Japan has been affected by the strong influence.

Japan Marine research and development institutions, the report reveals another strong refrigeration reasons. The agency says, to climate warming arctic sea ice decrease the Barents sea, cause depression north move, Siberian high expanded, forming strong cold air swept Japan, Japan into the winter.