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The author:(作者)归海一刀
published in(发表于) 2014/2/3 8:04:56
Beijing snow snow enough standard， about hundred days no significant precipitation

Xinhuanet, Beijing, February 1 (reporter Ni Yuanjin)-1st, Beijing's "floating little Snowflake"! When men with "snow year, a rich year" wish when expecting snow, little snow has come and disappeared. Weather experts said the "snow" is not enough "snow." So far, Beijing has some "dry day".

Beijing Meteorological Bureau Chief Guo Jinlan 1st explained in an interview to the "snow" in the southeastern parts of the city, part of the site, "there are trace amounts of rain and snow, not all snow", which stands only trace precipitation in urban areas. "Observed Fengtai station drops, but basically, 0.0, for very low precipitation. Tai Hing station a little more clearly, is only 0.2 mm snowfall. "She said.

"Today there are still up to, ' standard ',1 6th the snow drifting snow too, because small precipitation, and is not widespread. "Said Guo Jinlan.

It is understood that Beijing's "snow standards" means, the city's 20 in a manual, more than 10 sites observed snow phenomenon; urban 5 sites, observe snowfall, or urban 5 sites, 3 or more sites observed snow, snowfall and at least 1 site is greater than or equal to 0.1 mm.

What is going on in this very weak precipitation? Said Guo Jinlan, "is due to the formation of easterly winds, resulting in near-ground visible humidification, wet layer a lighter, which means that humidity near the ground".

According to statistics, the last rainfall occurred on October 22 last year in Beijing and a city-wide average of 2.5 mm of rain, which has some "dry Pak". January 6, Beijing had floated down little snowflakes, but like this, not "snow." 2010 Beijing's first snow of winter also very late, delayed until February 10.

　　新华网北京2月1日电(记者倪元锦)1日凌晨，北京“又飘小雪花”了！正当人们怀着“瑞雪兆丰年”的心愿企盼雪能大些时，小雪花却来去匆匆不见踪迹。气象专家表示，此次“飘雪”还是不够“初雪标准”。至此，北京已约“干渴百日”。

　　北京市气象局首席预报员郭金兰1日接受采访时解释了此次“飘雪”，在北京城区部分地区、东南部的部分站点，“出现了微量的雨和雪，不全都是雪”，其中城区站基本只是微量降水。“比如丰台站观测到雨滴，但基本没有量，是0.0，为很弱的降水天气。而大兴站稍微清楚点，也只出现了0.2毫米的降雪。”她说。

　　“今天还是没有达到‘初雪标准’，1月6日那次飘雪花也是这样，因为降水微小，且不是大范围的。”郭金兰说。

　　据了解，北京的“初雪标准”是指，全市20个人工站中，多于10个站点观测到有降雪现象；城区5个站点，均观测到有降雪现象，或者城区5个站点中，3个或以上站点观测到有降雪现象，且至少有1个站点降雪量大于或等于0.1毫米。

　　为何会发生本次非常微弱的降水天气？郭金兰说，“是由于地层的偏东风，造成近地面明显增湿，湿层也比较浅，就是说在近地面湿度较大”。

　　据统计，北京的上次降水发生在去年10月22日，一场全市平均2.5毫米的小雨，距今已约“干渴百日”。1月6日北京曾飘下小雪花，但和这次一样，不够“初雪标准”。2010年冬天北京初雪也很晚，到次年2月10日才姗姗来迟。

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