由我系刘志赵教授联合中国矿业大学张克非教授及中科院上海天文台共同主办的2023年国际大气探测及数据同化研讨会近日在徐州成功举办

Most recently, LSGI co-organized the 2023 International Symposium on Atmospheric Sounding and Data Assimilation (ISASDA) with the partners China University of Mining and Technology (CUMT) and Shanghai Astronomical Observatory of the Chinese Academy of Sciences at Xuzhou, Mainland China during 6-9 December 2023. This symposium is co-chaired by Prof. Kefei Zhang from the CUMT and Prof. George Zhizhao Liu from the LSGI, Hong Kong Polytechnic University.

With a cross-disciplinary theme, more than 200 scientists, researchers, and professionals from the Mainland China and Hong Kong as well as the United States, Russia, Germany, Japan, Australia, Poland, Egypt, Nepal, Pakistan, and Kazakhstan were attracted to this unique symposium. To the best of our knowledge, this is the first of its kind to organize such a symposium specifically to synthesize GPS/Beidou-based and remote sensing-based atmospheric sounding techniques with data assimilation.

With the development of GPS/Beidou and remote sensing technologies, more and more opportunities are available for atmospheric observations, which provide valuable input data for modern weather forecasting system through data assimilation into advanced Numerical Weather Prediction (NWP) models. The assimilation of observation data is a crucially important procedure in modern NWP in order to enhance the reliability and performance of weather forecasting.

Prof. George Zhizhao Liu and his Micro-Laboratory of Atmospheric Research and Geomatics Engineering (Micro-LARGE) are international pioneers in synthesizing GPS/Beidou and remote sensing technologies and their applications in NWP. Their advanced algorithms have significantly improved the accuracy of remote sensing satellite-observed atmospheric water vapor data, a crucially important type of input data for NWP and weather forecasting. The Micro-LARGE Lab led by Prof. Liu is claimed to be the world’s 2nd agency to assimilate Near-Infrared (NIR) satellite water vapor into NWP, after the U.K. Met Office which is the world’s first one to operationally assimilate satellite NIR water vapor data into its global NWP since May 2022.

最近，LSGI与合作伙伴中国矿业大学（CUMT）和中国科学院上海天文台共同在中国徐州举办了2023年国际大气探测和数据同化研讨会（ISASDA），会议时间为2023年12月6日至9日。该研讨会由CUMT的张克非教授和香港理工大学土地测量及地理资讯学系的刘志赵教授共同主持。这次研讨会的跨学科主题，吸引了来自中国大陆、中国香港以及美国、俄罗斯、德国、日本、澳大利亚、波兰、埃及、尼泊尔、巴基斯坦和哈萨克斯坦的200多名科学家、研究人员和专业人士。据我们所知，这是综合GPS/北斗和遥感大气探测技术与数据同化的首次此类研讨会。

随着GPS/北斗和遥感技术的发展，大气观测的机会越来越多，通过将这些数据同化到先进的数值天气预报（NWP）模型中，可为现代天气预报系统提供宝贵数据。观测数据的同化在现代NWP中至关重要，可以提高天气预报的可靠性和准确度。刘志赵教授和他的大气研究和地理信息工程微实验室（Micro-LARGE）在GPS/北斗和遥感技术及其在NWP中的应用方面是国际先驱。他们的先进算法显著提高了遥感卫星观测的大气水汽数据的准确性，这是NWP和天气预报的重要输入数据类型。据称，刘教授领导的Micro-LARGE实验室是世界上第二个将近红外（NIR）卫星水汽数据同化到NWP的机构，仅次于英国气象局，后者是自2022年5月以来世界上第一个将卫星NIR水汽数据运行同化到其全球NWP的机构。

Professor Kefei Zhang (left) from the School of Environmental Science and Surveying and Mapping at the China University of Mining and Technology and Professor George Zhizhao Liu from the Department of Land Surveying and Geo- Informatics at Hong Kong Polytechnic University co-organized the 2023 International Symposium on Atmospheric Sounding and Data Assimilation. (ISASDA).