jianjie

中国天文学会学术期刊

天文学进展

PROGRESS IN ASTRONOMY

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上海GPS综合应用网对2002年长江三角洲地区
入梅过程的监测

宋淑丽¹ 朱文耀¹ 丁金才² 程宗颐¹　
(1. 中国科学院上海天文台上海 200030）
(2.上海中心气象台上海 200030〕

摘要

简要介绍了上海GPS综合应用网(SCGAN)情况，分析了该网从2002年6月投入正常运行后，获取的2002年入梅前后长江三角洲地区高分辨率可降水量(PWV)资料，描述了PWV所反映的长江三角洲地区的入梅过程和特点，以及把GPS/PWV同化到中尺度数值预报模式初始场中的试验。

Coming Process of Meiyu Season in 2002 Over Yangtz River Delta
Monitored by Shanghai GPS Network

Song Shuli¹ Zhu Wenyao¹ Ding Jincai² Cheng Zhongyi¹
(1. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030)
(2. Shanghai Central Weather Observatory, Shanghai 200030)

Abstract

Shanghai Comprehensive GPS Application Network (SCGAN) is introduced in this paper. The variety of precipitable water vapor (PWV) series monitored from SCGAN is analyzed. The coming process and characteristic of Meiyu Season in 2002 reflected by PWV are described. By assimilating GPS/PWV with high spatial and temporal resolution, the initial state of numerical weather forecast is improved, and then the accuracy of numerical weather forecast is enhanced.