X波段移动雷达与S波段新一代天气雷达产品比对分析
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摘要
为探究、验证X波段移动雷达系统及其回波数据实用性,利用X移动雷达在台风外围云系降水天气过程(2016.7.9)进行探测作业并收集观测数据,对移动雷达观测范围100 km内的回波信息进行研究分析,同时将其与S波段天气雷达同一时间段内探测到的速度场、强度场及对应测站雨量数据等资料进行数据分析,比对两部雷达观测结果的差异及原因。结果表明:X波段移动雷达与S波段新一代天气雷达相比,X波段雷达对气象目标物有灵敏的探测能力,X波段雷达比S波段雷达能探测到较好的空间分辨率和较低的地杂波。但是X波段雷达因探测降水时衰减严重,因此在60 km的探测范围内,X波段雷达回波强度略强,之后随之减弱。在探测降水的移动过程及强度变化趋势,与S波段雷达的探测结果基本一致。X波段移动雷达在S波段雷达故障或探测不到的地方,具有替代S波段雷达的应急作用,能够作为填补S波段雷达探测盲区的一种方法。
To explore and verify X band mobile radar echo data system and its practicability,use X band mobile radar exploration work and collect data in the cloud precipitation process of typhoon( 2016. 7. 9),and analyze the echo information of the mobile radar range amongst of 100 km. Use the S band radar to analysis velocity,intensity and corresponding station rainfall data in the same period of time. Compared with the differences and reasons of two radar observing results. The results show that: compared with the S band radar and the X band,X band radar has the sensitive detection ability to the meteorological objects,and the X band radar can detect the better spatial resolution and the lower ground clutter than the S band radar. But X band radar attenuates seriously when detecting precipitation,so in the detection range of 60 km,the echo intensity of X band radar is slightly stronger and then decreases. The moving process of the detection of precipitation and the trend of intensity change are basically consistent with the detection results of S band radar. The X band mobile radarhas the emergency response to replace the S band radar in the S band radar failure or out of detection. It can be used as a way to fill the S band radar detection blind area.
To explore and verify X band mobile radar echo data system and its practicability,use X band mobile radar exploration work and collect data in the cloud precipitation process of typhoon( 2016. 7. 9),and analyze the echo information of the mobile radar range amongst of 100 km. Use the S band radar to analysis velocity,intensity and corresponding station rainfall data in the same period of time. Compared with the differences and reasons of two radar observing results. The results show that: compared with the S band radar and the X band,X band radar has the sensitive detection ability to the meteorological objects,and the X band radar can detect the better spatial resolution and the lower ground clutter than the S band radar. But X band radar attenuates seriously when detecting precipitation,so in the detection range of 60 km,the echo intensity of X band radar is slightly stronger and then decreases. The moving process of the detection of precipitation and the trend of intensity change are basically consistent with the detection results of S band radar. The X band mobile radarhas the emergency response to replace the S band radar in the S band radar failure or out of detection. It can be used as a way to fill the S band radar detection blind area.
引文
[1]中国船舶重工集团公司第724研究生.724XD脉冲多普勒天气雷达使用手册[M].南京:中国船舶重工集团公司第724研究所,2007:5-15.
[2]张凯,罗鸣,潘国盛.724XD气象应急移动雷达车及其应用[J].气象水文海洋仪器,2009,26(4):72-74.
[3]通讯员张慧.国产X波段多普勒天气雷达首次通过性能测试[N].中国船舶报;2005年.
[4]伍志方,胡东明,梁玉琼.气象雷达新技术及其在防灾减灾中的应用[J].灾害学,2007,22(2):36-40.
[5]罗生洲.未雨绸缪—2011年青海省气象防灾减灾演练记[J].青海气象,2011(2):83-86.
[6]吴翀,刘黎平,张志强.S波段相控阵天气雷达与新一代多普勒天气雷达定量对比方法及其初步应用[J].气象学报,2014,21:390-401.
[7]吴迎旭,安应玉,周一.X波段移动全相参多普勒雷达应用及与C波段新一代天气雷达对比[J].黑龙江气象,2011,28(1):27-31.
[8]徐坤,谢明元,刘黎平,等.C、X波段双线偏振多普勒雷达资料质量分析[J].成都信息工程大学学报,2009,24(4):329-332.
[2]张凯,罗鸣,潘国盛.724XD气象应急移动雷达车及其应用[J].气象水文海洋仪器,2009,26(4):72-74.
[3]通讯员张慧.国产X波段多普勒天气雷达首次通过性能测试[N].中国船舶报;2005年.
[4]伍志方,胡东明,梁玉琼.气象雷达新技术及其在防灾减灾中的应用[J].灾害学,2007,22(2):36-40.
[5]罗生洲.未雨绸缪—2011年青海省气象防灾减灾演练记[J].青海气象,2011(2):83-86.
[6]吴翀,刘黎平,张志强.S波段相控阵天气雷达与新一代多普勒天气雷达定量对比方法及其初步应用[J].气象学报,2014,21:390-401.
[7]吴迎旭,安应玉,周一.X波段移动全相参多普勒雷达应用及与C波段新一代天气雷达对比[J].黑龙江气象,2011,28(1):27-31.
[8]徐坤,谢明元,刘黎平,等.C、X波段双线偏振多普勒雷达资料质量分析[J].成都信息工程大学学报,2009,24(4):329-332.