| 用数值预报场间接对比新疆两种型号探空系统 |
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| 引用本文： | 姚雯,马颖,王战,黄炳勋.用数值预报场间接对比新疆两种型号探空系统[J].应用气象学报,2012,23(2):159-166. |
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| 作者姓名： | 姚雯 马颖 王战 黄炳勋 |
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| 作者单位： | 1.中国气象科学研究院，北京 100081 |
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| 基金项目： | 国家自然科学基金项目(41105122) |
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| 摘 要： | 利用2007—2010年近4年的探空资料对比新疆中、北部地区乌鲁木齐、伊宁、克拉玛依、北塔山4个采用GTS (U)-2型P波段雷达-电子探空仪的探空站及其周围的阿勒泰、阿克苏和库尔勒3个采用GTS1型L波段雷达-电子探空仪的探空站的探空记录与预报场的偏差值，发现采用GTS1型探空仪的3个探空站的探空记录不仅在同一观测时段而且08:00(北京时，下同) 与20:00两个不同的观测时段与预报场差值的差异小；4个采用GTS (U)-2型探空仪的探空站的探空记录与预报场的差值在同一观测时间的差异小，但08:00和20:00的差异很大；且GTS (U)-2型探空仪与GTS1型探空仪20:00获取的探空记录与预报场差值的差异小，但08:00探空记录的差异大。综合对比结果表明:2007年1月—2010年3月新疆自治区采用的GTS (U)-2型探空仪的探空记录08:00可能存在问题，用户在数据资料分析时需要特别注意。
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| 关 键 词： | GTS (U)-2型P波段雷达-电子探空仪 GTS1型L波段雷达-电子探空仪 数值预报场 间接对比 |
| 收稿时间： | 4/6/2011 12:00:00 AM |
Indirect Comparison of Two Types of Radiosonde Systems Deployed in Xinjiang Using First Guess Fields |
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| Yao Wen,Ma Ying,Wang Zhan and Huang Bingxun.Indirect Comparison of Two Types of Radiosonde Systems Deployed in Xinjiang Using First Guess Fields[J].Quarterly Journal of Applied Meteorology,2012,23(2):159-166. |
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| Authors: | Yao Wen Ma Ying Wang Zhan and Huang Bingxun |
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| Institution: | 1.Chinese Academy of Meteorological Sciences, Beijing 1000812.2 Miyun Meteorological Bureau of Beijing, Beijing 101500 |
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| Abstract: | The consistency of upper-air observations in serial of space and time is attached more and more importance especially by the users and upper-air observation operators.Generally,the systematic differences of different types of radiosondes can be obtained using the method of direct comparison when the compared radiosondes are suspended below the same balloon.However,as these errors are more or less related with the releasing place,time and method,the results of a few direct comparisons cannot reflect the differences properly. It is found that FG(first guess) fields can reflect the regional differences of meteorological element a- rose by weather process generally and such differences can be removed indirectly using FG.If two different types of radiosonde systems are equipped at neighborhood stations for quite a long time,they can be com- pared indirectly using FG. Average bias is analyzed between the observations and FG from neighborhood stations of Urumqi, Yining,Klamayi,Beitashan(4 stations which use P-band radiosonde system),Altay,Aksu and Kuerle(3 stations which use L-band radiosonde system) during 2007—2010.The result reveals that the differences of average bias between observations and FG from L-band stations are small during both daytime and night.The differences of average bias at the same sounding time from the 4 P-band stations are normal, but the differences are very large between 0800 BT and 2000 BT.And the differences of average bias are very small between P-band and L-band at 2000 BT but large at 0800 BT. It shows that observations at 0800 BT by P-band radiosonde system might be problematical,which call for more attention when using these data in Xinjiang.Statistical results are also given as reference for correcting the systematic error. |
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| Keywords: | GTS(U)-2 P-band electrical radiosonde GTSl L-band electrical radiosonde first guess(FG) fields indirect comparison |
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