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基于毫米波云雷达的西太平洋云观测试验研究
胡树贞, 曹晓钟, 陶法, 张雪芬
(中国气象局气象探测中心)
Experimental Study of Cloud Observation Based on Millimeter Wave Cloud Radar in Western Pacific Region
hushuzhen, CAO Xiaozhong, Taofa, Zhang Xuefen
(Meteorological Observation Center, China Meteorological Administration)
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投稿时间:2019-04-28    修订日期:2020-02-17
中文摘要: 提要:2017年10月15日~11月15日,利用中国科学院海洋研究所‘科学’号海洋科学综合考察船,搭载2种型号Ka波段(35GHz)云雷达(HT101、HMBKPS)开展西太平洋云观测试验研究。试验期间定时释放GPS探空仪,利用探空仪识别的出云及入云高度,开展云雷达云高探测准确性分析;同船安装1台可见光&热红外双波段天空成像仪获取天顶图像,用于分析云雷达数据获取率。试验结果表明:(1)2部云雷达云高数据一致性较好,探测云底高度(CBH) R2=0.994、云顶高度(CTH) R2=0.977;(2)云雷达探测云高准确性高,与基于探空仪湿度识别的CBH偏差分别为130m(HT101)、72m(HMBKPS),CTH偏差分别为310m(HT101)、190m(HMBKPS);(3)受海洋性气候及船体摇摆影响,2部云雷达云数据获取率分别为57.8%(HT101)、68.7%(HMBKPS),漏测主要为卷云和淡积云。
中文关键词: 毫米波云雷达    探空  西太平洋  
Abstract:From October 15th to November 15th, 2017, the Cloud Observation Experiment was carried out using two types of Ka-band millimeter wavelength cloud radar (MMCR)(HT101, HMBKPS) in the Western Pacific Region. MMCR were installed on the ‘Science’ marine science research ship, Institute of Oceanography, Chinese Academy of Sciences. The GPS sounding were released periodically during the observation experiment; The accuracy of MMCR was analyzed by using the height of sounding out and into cloud. A visible light thermal infrared dual-band sky imager was installed on the ‘Science’ ship to obtain 24h zenith image for MMCR data acquisition rate analysis. The test results show that: (1) The two MMCR have high data consistency, and the cloud base height (CBH) R2=0.994, cloud top height (CTH) R2=0.977; (2) The accuracy of cloud height observation by MMCR was high; Recognition of CBH and CTH based on the sounding humidity sensor, the CBH deviations were 130m (HT101) and 72m (HMBKPS), the CTH deviations were 310m (HT101) and 190m (HMBKPS); (3) Influenced by oceanic climate and ship swaying, the cloud data acquisition rates of the two MMCR were 57.8% (HT101) and 68.7% (HMBKPS), the main missed clouds were cirrus and cumulus clouds.
文章编号:201904280180     中图分类号:    文献标志码:
基金项目:国家自然科学基金重点项目
引用文本:
胡树贞,曹晓钟,陶法,张雪芬,0.[en_title][J].Meteor Mon,():-.
hushuzhen,CAO Xiaozhong,Taofa,Zhang Xuefen,0.Experimental Study of Cloud Observation Based on Millimeter Wave Cloud Radar in Western Pacific Region[J].Meteor Mon,():-.