设为首页
加入收藏
舟山地区台风降水Z-R关系研究及其应用
Z-R Relation with Its Application to Typhoon Precipitation in Zhoushan
-
摘要: 利用2004—2005年舟山多普勒天气雷达台风基数据资料和浙江省自动雨量站网资料, 拟合适合于舟山地区台风降水的Z-R关系：Z=70R1.38, 并对其进行有效性确认。应用此关系对台风“南玛都”和“卡努”的降水进行雨量估测并与美国WSR-88D默认Z-R关系及实时雨量资料进行对比。结果表明：对于小雨量地区, 应用美国WSR-88D默认Z-R关系估测台风降水比较接近于实际。但是, 对于大雨量地区来说, 应用此关系估测台风降水更接近实际雨量, 而应用默认Z-R关系估测台风降水, 大雨雨量被严重低估。文中并进一步分析了产生误差的主要原因。Abstract: Using the typhoon base data of Dopplar weather radar and Zhejiang automatic precipitation station data in 2004 and 2005, the Z-R relation of typhoon precipitation suiting the local area is set up, which is confirmed to be available. It is applied to estimate the precipitation of typhoon "Nanmadol" and "Khanun", with comparing with the real precipitation and the estimated precipitation based on Z-R relation of American WSR-88D. It shows that in an area with small rainfall, the estimated precipitation by use of Z-R relation of American WSR-88D is more close to the fact than the precipitation with using the target relation. However, in an area with heavy rainfall, the latter is more close to the fact than the former, which the rainfall is seriously underestimated. Also, causes of the main error are further studied.
-
Key words:
- Z-R relation;
- base data;
- base reflectivity;
- precipitation rate
-
图 1 反射率因子Z和降水率R散点图
Fig. 1 The scatterplot of the relation between reflectivity Z and precipitation rate R
图 3 “卡努”台风在舟山市部分地区的实际降水、Z=70R1.38和Z=300R1.4估测降水对比柱状图
Fig. 3 Comparison between real precipitation and estimated precipitation based on forms Z=70R1.38 and Z=300R1.4 of typhoon “Khanvn” in part areas of Zhoushan
表 1 自动雨量站点分布及与舟山雷达相对位置
Table 1 Location of Zhoushan auto-precipitation stations and the relative radar
表 2 各台风、各地点Z-R关系及其误差对比
Table 2 Z-R relation and corresponding error comparison of typhoons in precipitation stations of Zhoushan
表 3 Z=70R1.38和Z=300R1.4不同反射率因子值对应的降水率 (单位:mm/h)
Table 3 The relation of reflectivity rate and precipitation calculated by forms Z=70R1.38 and Z=300R1.4 (unit:mm/h)
表 4 “南玛都”台风各测站降水估测对比 (单位:mm)
Table 4 Real estimated precipitation comparison of typhoon "Nanmadol" of precipitation stations in Zhoushan (unit:mm)
-
[1] Fu Q, Krueger S K, Liou KN, et al. Interations of radiation and convection in simulated tropical cloud clusters. J Atmos Sci, 1995, 52: 1311-1328. doi: 10.1175/1520-0469%281995%29052%3C1310%3AIORACI%3E2.0.CO%3B2 [2] Pruppacher H R, Klett J D. Microphysics of Cloud and Precipitation. Boston: Kluwer Academic Publishers, 1997. [3] 俞小鼎, 姚秀萍, 熊廷南, 等.多普勒天气雷达原理与业务应用.北京:气象出版社, 2006: 1-413. [4] 陶诗言, 张庆云, 张顺利. 1998年长江流域洪涝灾害的气候背景和大尺度环流条件.气候与环境研究, 1998, 3(4): 290-299. http://www.cnki.com.cn/Article/CJFDTOTAL-QHYH804.000.htm [5] 赵春生, 丁守国, 秦瑜.云内辐射传输过程对对流降水过程的影响.自然科学进展, 2003, 13(10): 1060-1066. http://www.cnki.com.cn/Article/CJFDTOTAL-ZKJZ200310010.htm [6] 丁守国.积云过程中云与辐射相互作用研究.北京:北京大学地球物理系, 2001. [7] 张培昌, 杜秉玉, 戴铁丕.雷达气象学.北京:气象出版社, 2001: 177-217. [8] 周广强, 赵春生, 丁守国, 等.不同辐射传输方案对中尺度降水影响的对比分析.应用气象学报, 2005, 16(2): 148-158. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=20050219&flag=1 [9] 廖国男, 周诗健, 译.大气辐射导论.北京:气象出版社, 1985: 250-254. [10] Kiehl J T, Hack J J, Bonan G B, et al. Description of the NCAC Community Climate Version 3 (CCM3). 1996. [11] 刘黎平, 张沛源, 梁海河, 等.双多普勒雷达风场反演误差和质量控制.应用气象学报, 2003, 14(1): 17-29. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=20030103&flag=1 [12] 廖玉芳, 俞小鼎, 郭庆.一次强对流系列风暴各例的多普勒天气雷达资料分析.应用气象学报, 2003, 14(6): 656-661. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=20030683&flag=1 [13] 朱龙彪, 郑铮, 何彩芬. 0414号台风"云娜"多普勒雷达探测.应用气象学报, 2003, 16(4): 500-508. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=20050463&flag=1 [14] 许映龙, 高拴柱, 刘震坤.台风云娜陆上维持原因浅析.气象, 2005, 31(5): 32-36. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXX200505006.htm [15] 许小永, 郑国光.多普勒雷达反演技术及雷达资料在数值模式中的应用.气象, 2005, 31(3): 7-12. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXX200503001.htm -
下载:
计量
- 摘要浏览量: 4160
- HTML全文浏览量: 687
- PDF下载量: 1563
- 被引次数: 0
