利用CINRAD WSR-98D探测夏季对流云特征
MAKING USE OF CINRAD WSR-98D FOR PROBING INTO SUMMER CONVECTIVE CLOUD CHARACTERISTICS
-
摘要: 利用南昌CINRAD WSR-98D多普勒雷达,对2002-2003年夏季36个对流云天气过程连续观测基础上,选取有代表性观测个例及不同层次、不同时刻回波产品资料,分析夏季对流云结构特征。结果表明,对流云回波基本反射率面积值为11.18×109 m2;组合反射率面积值为19.85×109 m2;对流云回波顶高平均10.71 km,最大顶高15.11 km,回波顶高面积值为7.71×109 m2。分析结果可为江西范围内的人工增雨作业提供科学依据。
-
关键词:
- CINRADWSR-98D /
- 探测对流云 /
- 特征
Abstract: Making use of CINRAD WSR-98D, a Doppler weather radar in Nanchang, and a data base of 36 convective cloud weather processes continuously observed for the summer of 2002 and 2003, representative cases and radar return echoes for different levels and times were selected to analyze convective cloud structural characteristics in Jiangxi. As shown in the result of convective cloud return echoes, the area for basic reflectivity is 11.18×109 m2, the area for combined reflectivity is 19.85×109 m2, the mean top height is 10.71 km, the maximum top height is 15.11 km, and the area for top height is 7.71×109 m2. The analysis result can provide scientific basis for rainfall enhancement operations in Jiangxi.-
Key words:
- CINRAD WSR-98D /
- convective cloud probing /
- characteristics
-
[1] 李玉林,杨梅,曾光平,等.南方夏季对流云降水回波特征分析[J].应用气象学报,2003(增刊):126-134. [2] 王庆,孙即霖,刘诗军,等.大气环流异常对山东雨季降水的影响[J].热带气象学报,2005,21(2):181-190. [3] 吴胜安,江志红,刘志雄,等.中国夏季降水与太平洋SSTA年代际变化的初步研究[J].热带气象学报,2005,21(2):43-52. [4] 张培昌,杜秉玉,戴铁丕.雷达气象学[M].北京:气象出版社,2000:36-55. [5] 陆叔鸣.江西省伏秋旱时空分布特征及其预测[J].气象,1992,18(5):23-25.
点击查看大图
计量
- 文章访问数: 1112
- HTML全文浏览量: 0
- PDF下载量: 707
- 被引次数: 0