September 24, 2011

1 September 22, 2011 equatorial Pacific sea surface temperature anomaly: water temperature in the Pacific signs of La Nina stagnant
7 月 30-November 6, slow down Earth rotation period is conducive to the formation of La Nina. September 23 Autumnal Equinox is the height of formation of La Nina, in September, after the formation of La Nina is unlikely.
every year on April 9-July 28 (110 days) and November 18-January 23 (66 days) for the acceleration phase of the Earth rotation, is conducive to the formation of El Nino events, seasonal of the El Nino phenomenon occurs every year near Christmas, December 25; January 25-April 7 (72 days) and July 30 -11 June (109 days) for the Earth rotation deceleration phase, conducive to the formation of La Nina events.
Chengdu winter and into the “limbo”?
In recent days, substantial cooling throughout the country, Shanxi, even snow, Chengdu quickly fall from summer mode to mode. Cold so early this year, the Internet is also some doubt: “This winter is particularly cold?” Popular science website published an article this shell network, analysts believe that if this winter encounter “La Nina”, may be relatively cold. Sichuan meteorological experts said, “La Nina” effect, although in recent years, the main reason for our climate, but winter weather forecast, too early.
impact
1
control of Yunnan and Guizhou
If the weather conditions this winter, then controlled by the La Nina, according to past data, most of China is likely to be colder in winter, especially in Yunnan and Guizhou.
impact
2

upset Sichuan Basin, there are three main rain belt, one Ya n, Leshan rainfall zone, the second is Beichuan, Mianzhu rain belt, third, Daxian, Pakistan rain belt. Rainy year, the east basin, west of the dry, different from the year-round, mainly pre-”La Nina” court disaster, the situation has changed atmospheric circulation.
impact
3
Chengdu winter may be colder
IRI Columbia University Center forecast: this winter , South China and Southwest China cooling probability.
“La Nina” getting himself into this basin, “East West, floods and droughts”
Chengdu Institute of Atmospheric Sciences, School of Information Engineering, Professor, Master Instructor Xiaotian Gui said, “La Nina” effect on the basin the second half of last year, mainly during the first half of this year. “This winter, the basin is not affected by a Nina effect, is still unpredictable.” He explained that there are three main basins with rain, one Ya n, Leshan rain belt, the second is Beichuan, Mianzhu rain belt, third, Daxian Pakistan in the rain belt. Xiaotian Gui said, “East West floods drought” has been the climate of the basin characteristics, but “this year, the east basin, wet, dry west, different from normal.”
He said that this year Yibin, Leshan 10 years in southern drought of epic proportions, mainly pre-”La Nina” court disaster, the situation has changed atmospheric circulation.

shell speculate network: the possibility of a large winter cold
network science website shell 16 published an article “Rin Winter is around the corner? This winter there will be more cold? “Weather this winter have done some research.
The article said that according to U.S. National and Oceanic and Atmospheric Administration (NOAA) predicts that climate anomalies “La Nina” is coming. Abnormal weather this year, is by the “La Nina” effect. According to historical data, La Nina occurs: the summer, the probability of high temperature in northern China is relatively large, southwest low temperature may be larger; winter, lower than normal temperatures in most parts of China the probability of large, especially Yunnan and Guizhou.
The article said that if the weather conditions this winter, then controlled by the La Nina, according to past data, most of China is likely to be colder in winter.
The article also cited the Columbia University Center is currently IRI prediction: This winter, cooling in south China and southwest regions of high probability. Meanwhile, the article and make civil claims, “the more hot summer, cold winter, the more” to support.
article says: “By combining historical data and numerical model results, we can see our colder winter this year, more likely, but the exact degree of cold to the Han? do not know.”

expert opinion
Provincial Meteorological Bureau: “La Nina” is the main cause of recent climate affect our
“La Nina impact on China basic can be summarized in hot summer and cold winter . “Provincial Meteorological Bureau director Ma Zhenfeng Climate Center, said that in recent years, La Ni?a is the main reason affecting our climate. Under the influence of La Nina phenomenon in the equatorial eastern Pacific water temperature is low, the meridional circulation anomalies in East Asia, in addition to low temperature caused by the winter cold outside, also resulting in the summer heat.
Provincial Climate Center: The current temperature is normal
Provincial Climate Center, said staff from the situation over the years, throughout the basin in the winter time around November 20. September 1 to September 20, the average temperature is 22.2 ℃, with an average temperature of 21.7 ℃ historical period or less. “From these data, this time the temperature is normal.”
Piece
“HOLD live” body
“across the country are participate in the fall of par-ty, Chengdu also froze in the summer, notfashion. but there is no relationship, under the rain in Chengdu, a second change in winter, hold the whole scene live! “
sad body
“There is a waiting call for ages, there is a cold call: forgot to wear Qiuku … …”
compassion body
“Qiuku to leave, because cotton pants begging, or underwear do not stay … … “
more hot summer cold winter more?
information under the Provincial Climate Center, this summer, the province average temperature in June is 22.7 ℃, higher than the historical 1.0 ℃; 7 the mean temperature of 23.4 ℃, higher than the historical 0.2 ℃; 8 The mean temperature of 24.4 ℃, higher than the historical 1.3 ℃.
popular among this old adage: “The more heat in summer, colder in winter.” this summer, high temperatures, is not particularly cold winter also cause?
In this regard, the Provincial Meteorological Bureau director Ma Zhenfeng Climate Center, said people of this argument does make sense, “is like a pendulum in the middle there is a relative value, the more powerful if you put the left in winter, In summer, the magnitude of the swing to the right is also larger. “But he said, this is not absolute, is a relationship between the atmosphere, climate, geography, and other aspects of marine science, heterogeneous system, the reason is not entirely that simple.
“cold”
La Nina La Ni?a is the abnormal cooling of Pacific waters in the eastern part of the case, and continued for six months. La Ni?a generally will come with the El Nino phenomenon, the sign of hurricanes, storms and cold. La Nina causes the southwestern United States and South America, the West Bank became very dry, rainfall anomalies in Southeast Asia, Northeast Asia, unusually cold. Snowstorm in 2008, is the La Nina climate impact of China most obvious one.