El Ni?o "remnants" remain extreme weather extreme weather _ throughout the year | El | news

Xinhua News Agency, Beijing, April 10-continuous warm, heavy rains in the South in the North, recent weather, "polarization" is obvious. In the global context, that extreme weather phenomenon is by no means alone. Is likely to be "the strongest in the history of" El Ni?o, although the peak has passed, but still powerfully stirred global climate, its influence must be wary.

El Nino caused abnormally high water temperatures in the Pacific Equator waters, a climatic phenomenon, which often lead to abnormal climate in many areas around the Pacific, including frequent rainstorms in some areas, flood occurs, in other areas, the high temperature and less rainfall, severe drought.

Released in February said the World Meteorological Organization, although not sure whether "most strong", but between last year and this year El Nino intensity there is at least one of the strongest on record. The Organization Peter Li·talasi said that last year, the El Ni?o phenomenon "brought extreme weather to the continents, and boosted the global record heat."

World Meteorological Organization believes that the El Nino peak has passed, is expected to weaken in coming months, and recession in the second quarter. But the Group also warned that "its effect will continue for several months, and must not be taken lightly."

The recent extreme weather around the world is the El Ni?o "remnants remain" the best example. United States National Oceanic and Atmospheric Administration's latest report shows global temperatures hit a record high in February this year, to become the warmest since temperature records in February, global temperatures have been broken for a 10th consecutive month monthly global temperatures recorded over the same period.

Experts believe that recent extreme weather events around the world are related to El Ni?o. Early last month, the U.A.E. capital of Abu Dhabi and the surrounding areas of mega storm, desert city of "seconds" water, which locally rare in 40 years. About the same time, United States California storm, but heavy snowfall occurs in North Lake Tahoe area of California. In South America, Argentina due to heavy rain led to flooding in the South large poisonous snakes washed ashore, some tourist attractions were shut down. Africa Ethiopia appeared the most severe drought in decades, food production has fallen by half.

For China, El Ni?o year, southern autumn and rainy, a common occurrence in northern winter, and in summer for the second year, the Yangtze River Valley and the Yangtze River prone to flooding. Experts believe that the current continuous torrential rains, into the early flood season in South China, may be El Nino further "outbursts" signal.

Is particularly need to be alert, because of the atmosphere's response to El Ni?o has a certain lag, its strength and its influence of El Ni?o not synchronized, for example, their current strength has declined, but fairly strong influence, prevention does not let up.

Chinese Ministry of water resources in Pearl River flood control and drought relief headquarters said recently, under the influence of the El Ni?o phenomenon, in 2016, China Meteorological year may total deviation, precipitation, drought in dry, repeat of 1998 in the Pearl River basin flood, there is a high probability of even larger floods.

In addition, weather models show that following the El Ni?o, stronger La Nina phenomenon may follow later this year. This also means that the weather this year will have a lot of uncertainty, higher risk of extreme weather.

La Nina refers to the eastern equatorial Pacific and Central continued abnormal cooling of sea water range, but also with global climate chaos. Strong La Ni?a occurs when winter and spring, mid-latitude atmospheric circulation may have been enhanced, China vulnerable to low temperatures. Such as the snow and freezing weather across southern China in late 2007, is considered strong La Ni?a-related.

Responsible editor: Liu Debin SN222

Article keywords:
El Ni?o weather extremes

I want feedback
Save a Web page
Xinhua News Agency

厄尔尼诺“余威”犹存 极端天气可能贯穿全年|厄尔尼诺|极端天气_新闻资讯

　　新华社北京4月10日电 北方持续晴暖、南方暴雨成灾，近期中国天气“两极分化”明显。放在全球背景下，这种极端天气现象绝非孤例。很可能成为“史上最强”的厄尔尼诺虽然峰值已过，但仍在强有力地搅动全球气候，对其影响必须警惕。

　　厄尔尼诺是太平洋赤道海域水温异常升高引起的一种异常气候现象，它往往会引起太平洋周边多个地区气候异常，其中一些地区暴雨频繁，出现洪涝灾害，另一些地区则高温少雨，严重干旱。

　　世界气象组织2月发布公报说，尽管还不能确定是否为“最强”，但去年至今年厄尔尼诺的强度至少是有记录以来最强之一。该组织秘书长彼得里·塔拉斯说，厄尔尼诺现象在去年“给各大洲带来了极端天气，并助推了全球创纪录的高温”。

　　世界气象组织认为，本次厄尔尼诺的高峰已过，预计未来数月将减弱，并在第二季度衰退。但该组织同时提醒，“其影响还将持续数月，不能掉以轻心”。

　　世界各地近期的极端天气是厄尔尼诺“余威犹存”的最佳例证。美国国家海洋和大气管理局的最新报告显示，今年2月全球气温再创新高，成为有气温记录以来的最热2月，全球气温已连续第10个月破同期单月全球气温纪录。

　　专家认为，世界各地近期出现的极端天气现象都与厄尔尼诺有关。上月初，阿联酋首都阿布扎比及其周边地区遭遇特大暴风雨袭击，沙漠之城“秒变”水 乡，这在当地40年来罕见。几乎同时，美国加州也遭受暴风雨袭击，而加州北部塔霍湖地区则出现强降雪。在南美洲，阿根廷南部因暴雨导致的洪水将大量毒蛇冲 上岸，一些旅游景点被迫关闭。非洲埃塞俄比亚则出现了几十年来最严重的干旱，粮食产量下降了一半。

　　对于中国来说，厄尔尼诺发生当年，通常会出现南方秋季多雨、北方暖冬，而第二年夏季，长江流域和江南地区易出现洪涝。专家认为，当前华南持续暴雨、入汛时间提前等，可能是厄尔尼诺进一步“发威”的信号。

　　特别需要警惕的是，由于大气对厄尔尼诺的反应具有一定滞后性，厄尔尼诺本身的强度与其影响力并不同步，比如当前其强度已经下降，但影响力还相当强，防灾工作丝毫不可松懈。

　　中国水利部珠江防汛抗旱总指挥部近日表示，受厄尔尼诺现象影响，2016年中国气象年景可能总体偏差，降水偏多、涝重于旱，珠江流域重现1998年洪水、甚至更大规模洪水的可能性很大。

　　此外，有气象模型显示，此次厄尔尼诺之后，较强的拉尼娜现象可能在今年下半年接踵而至。这也意味着今年全年气候会有很强的不确定性，出现极端天气的风险较高。

　　拉尼娜指赤道太平洋东部和中部海水大范围持续异常变冷的现象，同时也伴随着全球性气候混乱。强拉尼娜现象出现的当年冬季和次年春季，中纬度大气环流的经向度可能加强，中国易出现气温偏低。比如2007年底中国南方出现的雨雪冰冻天气，被认为与强拉尼娜现象有关。

责任编辑：刘德宾 SN222

文章关键词：
厄尔尼诺 极端天气

我要反馈
保存网页
新华社