During the northern hemisphere winter of 2003–2004 significant levels of stratospheric odd nitrogen (NOX) were observed descending from the mesosphere. Here we study subionospheric radio wave propagation data from Ny Ålesund, Svalbard, Norway to determine the origin of the mesospheric NOX. A clear change in the radio wave diurnal variation is observed, starting on January 13, 2004, lasting for 37 days. The behavior is consistent with the ionization, by Lyman-α, of thermospheric NOX descending into the mesosphere from altitudes above 90 km. Estimates of the concentration of NOX required to produce the observed ionization changes are consistent with the levels of previously published stratospheric mixing ratios after the NOX has descended into the stratosphere. The radio wave data shows that no significant proton or electron precipitation events into the mesosphere occurred at this time, and the mesospheric effects of the large storms in October/November 2003 had abated by late December 2003.
since January 8, 2014, the railway sector to adjust part of the station Internet, telephone booking time. Booking tickets by telephone booking passengers passengers with valid identity documents, to the station window or any outlets in exchange for tickets has. Telephone booking tickets for the time: 12:00 on the day before the ticket has second 12:00 tickets; day after 12:00 tickets at second days before 24:00 tickets available.
learned from the Qinghai Tibet railway company, the specific adjustment program is as follows, 8:00 from the sale of the station: Anyang, Beijing, West, Lanzhou, Wuchang, etc..
9:00 from the station: Baoji, Chengdu, Datong, Kunming, Lhasa, Nagqu, Yichang, Zhanjiang, etc..
9:30 from the station: Shenzhen.
10:00 from the sale of the station: Beijing, Guiyang, Nanchang, Nanchang, West, Qingdao, Qingdao north, Shenyang, etc..
10:30 from the station: Shenzhen East, West Shenzhen.
12:00 from the station: Guangzhou.
12:30 from the station: Golmud, Guangyuan, Hankou, Mianyang, Shihezi, etc..
13:00 from the sale of the station: Anqing, Dunhuang, Hanzhoung, Changchun, Hefei, Huainan, Ji’nan, Jiayuguan, Shijiazhuang, Ji’nan East, Shijiazhuang north, Taihu, Taiyuan, Tongcheng, Wuhan, Xiamen, Chongqing north.
13:30 from the sale of the station: Guangzhou north, East Guangzhou, West Zhanjiang.
14:30 from the sale of stations: Hangzhou, Hangzhou, Jiangshan, Jinhua, West, Lanxi, Longyou, Quzhou, Yiwu, china.
15:00 from the sale of the station: Binjiang, Changde, Dazhou, Changsha, Dali, Dezhou, Handan, Lijiang, Nanning, Shangqiu, Shanghai, Shanghai, Suzhou, South Weihai, Wuxi, Xining, Xinyang, Yanan and other west.
16:00 from the sale of the station: Jiamusi, Xinxiang, Yinchuan, Chifeng, Dalian, Delingha, Shiwan, Hohhot, sea, Huangyuan, Ledu, Lianyungang Huang Kou, Liuzhou, Liupanshui, Luoyang, Pingdingshan, Qinhuangdao, Yi Ping, Tangshan, Xuzhou, Yantai, Zhangjiajie, Chongqing, Zhoukou, Zhumadian, Zunyi.
17:00 from the sale of the station: Anshan, Changzhou, Jingdezhen, Nanjing, Guilin, Xichang, etc.. (author: Ni Xiaoying)
* * * * news: provide clues of Scalping Train tickets awards
Spring Festival is approaching, railway company in accordance with the work plan, to mobilize the masses to participate in the fight against scalping activities during the spring of 2014, to crack down on the crime of Scalping Train tickets, maintain good ticket order, Xining Police Department of Qinghai Tibet Railway Public Security Bureau will implement the reporting prize system, report of Scalping Train tickets will receive 100 yuan reward clues to 500 yuan. <;