La Nina Meteorological Bureau responded Chongqing will usher in the coldest winter rumors-残清1864

La Nina? The weather bureau responded that "Chongqing will usher in the cold winter" rumors in July this year, since the World Meteorological Organization announced that La Nina state, Chongqing will welcome the cold winter, this winter will be cold in Chongqing cry that constantly refresh my circle of friends. What about the truth? In September 29th, the Chongqing Municipal Meteorological Bureau for the official reply: once a hand spawned La Nina ice disaster in 2008, it will have an impact on Chongqing’s winter weather, but many factors decide the weather trend, it is too early to conclusion,. La Nina is called anti El Nino. What is La Nina? Climate Center Weather Bureau deputy director Li Yonghua said that El Nino and La Nina is a natural phenomenon in the Pacific, Atlantic and Indian Ocean will appear, but the opposite. El Nino refers to tropical ocean temperature anomalies and sustained warming, La Nina refers to the tropical ocean temperature anomalies and continued cooling. The El Nino cycle is irregular, averaging once every four years. The El Nino phenomenon occurs in the second years of El Nino, and sometimes La Nina lasts for two or three years. This year, El Nino followed the El Nino phenomenon. Effect of La Nina phenomenon including the American Southwest and South America in the West Bank became very dry, and Australia, Indonesia, Malaysia and Philippines and other Southeast Asian regions have much precipitation anomaly, and the west coast of Africa and southeast coast of Japan and the Korean Peninsula, Northeast Asia is unusually cold. In general, China, in La Nina will make Southern China’s strong northeast monsoon in autumn and winter, the winter temperature lower than normal. The probability of Chongqing’s low temperature is large, but it can not be determined that the so-called "La Nina" leads to the coldest winter, but it is not rigorous." Li Yonghua said that La Nina will indeed lead to increased probability of the low temperature in winter, the most direct impact, is the northern cold air southward frequency increases, intensity, but there is not a 100% conclusion. For Chongqing, how big it is, how cold it is in winter, how low the temperature will be, and how long it will take to make specific predictions in the near winter. Li Yonghua said, Chongqing winter is not only affected by La Nina phenomenon, there are other aspects of the factors. "There are a lot of factors affecting the temperature in Chongqing, is the global atmospheric circulation in general, the specific point of view is that the cold air intensity." In addition, Chongqing’s geographical location factors for cold degree has also been affected, Chongqing in the Sichuan basin, northern Daba Mountains and Qinling Mountains block, Western and southern Qinghai Tibet Plateau and the Yunnan Guizhou Plateau surrounded, to some extent alleviate the arrival of cold air. La Nina has orchestrated 08 ice disaster in Chongqing Meteorological Center data show that in the past ten years, this is the fourth time La Nina, the first three were in 2007 August to 2008 May, 2010 June to 2011 May and 2011 August to 2012 March. In this three La Nina, the lowest temperature in Chongqing Shapingba city station to monitor were 0.8 C and 0.4 C and 2.8 C, is 2013 and 2014 with the lowest temperature monitoring station to 1.7 degrees and 2.3 degrees. From this data, it can be seen that the La Nina phenomenon occurred in the year

拉尼娜来了?气象局回应“重庆将迎来最冷冬天”传言今年7月,全球气象组织宣布拉尼娜状态以来,重庆将迎最冷冬天、重庆今冬将被冻哭的说法不断刷屏朋友圈。真相如何?9月29日,重庆市气象局进行了官方回复:曾一手催生2008年冰灾的拉尼娜现象,确实会对重庆今冬天气造成影响,但决定天气走势的因素众多,目前下结论还为时尚早,。拉尼娜被称为反厄尔尼诺现象究竟什么是拉尼娜?市气象局气候中心副主任李永华表示,拉尼娜和厄尔尼诺都是自然现象,在太平洋、大西洋和印度洋都会出现,却截然相反。厄尔尼诺是指热带海洋温度异常和持续变暖,拉尼娜指的是热带海洋温度异常和持续变冷。厄尔尼诺出现的周期并不规则,平均每四年一次。出现厄尔尼诺现象的第二年都会出现拉尼娜现象,有时拉尼娜现象会持续两三年。今年便是厄尔尼诺现象结束后,拉尼娜便紧随而至。拉尼娜现象的影响包括使美国西南部和南美洲西岸变得异常干燥,并使澳大利亚、印尼、马来西亚和菲律宾等东南亚地区有异常多的降水量,以及使非洲西岸及东南岸、日本和朝鲜半岛等东北亚地区异常寒冷。在中国,一般来说,拉尼娜现象在秋冬季会使华南的东北季候风较强,使冬季气温比正常情况低。重庆低温概率大但无法确定“所谓的拉尼娜导致最冷冬天的说法其实并不严谨。”李永华表示,拉尼娜现象的确会导致冬季气温偏低概率增大,最直接的影响,是北方冷空气南下的频率增大,强度增强,但目前并不能百分百下结论。对于重庆来说,影响有多大、冬天有多冷、气温会降到多低,都需临近冬季才能做出具体预测。李永华称,重庆的冬季不仅仅受拉尼娜现象的影响,还有其他各方面的因素。“影响重庆冬季气温的因素有很多,总的来说是全球的大气环流,具体来看则是到时候北方冷空气的强弱程度。”此外重庆的地理位置因素对于寒冷程度也有所影响,重庆处于四川盆地,北部有大巴山和秦岭的遮挡,西部和南部有青藏高原和云贵高原的包围,一定程度上缓解了冷空气的到来。拉尼娜曾一手导演08冰灾重庆市气象中心的数据显示,近十年来,这是第四次出现拉尼娜现象,前三次分别是2007年的8月到2008年的5月、2010年的6月到2011年的5月和2011年的8月到2012年的3月。在这三次拉尼娜现象中,重庆主城沙坪坝站监测到的最低气温分别是0.8℃、0.4℃和2.8℃,2013年和2014年同站监测到的最低温度则是1.7℃和2.3℃。通过这个数据可以看出,拉尼娜现象出现的年份,地区冬季发生低温的概率的确偏大。其中,令重庆人记忆最为深刻的,是2008年的冰灾天气。但气象专家也表示,这并不是绝对的情形,因此对于网上所谓的最冷冬天的说法还是应当理性对待。(上游新闻-重庆晨报)相关的主题文章: