Levizzani V, Kidd C, Aonashi K, Bennartz R, Ferraro R R, Huffman G J, Roca R, Turk F J, Wang N-Y
CNR-ISAC Bologna Italy.
University of Maryland College Park Maryland.
Q J R Meteorol Soc. 2018 Nov;144(Suppl Suppl 1):3-15. doi: 10.1002/qj.3214. Epub 2018 Jan 15.
The International Precipitation Working Group (IPWG) is a permanent International Science Working Group (ISWG) of the Coordination Group for Meteorological Satellites (CGMS), co-sponsored by CGMS and the World Meteorological Organization (WMO). The IPWG provides a focal point and forum for the international scientific community to address the issues and challenges of satellite-based quantitative precipitation retrievals, and for the operational agencies to access and make use of precipitation products. Through partnerships and biennial meetings, the group supports the exchange of information on techniques for retrieving and measuring precipitation and for enhancing the impact of space-borne precipitation retrievals in numerical weather and hydrometeorological prediction and climate studies. The group furthers the refinement of current estimation techniques and the development of new methodologies for improved global precipitation measurements, together with the validation of the derived precipitation products with ground-based precipitation measurements. The IPWG identifies critical issues, provides recommendations to the CGMS and supports upcoming precipitation-oriented missions. Training activities on precipitation retrieval from space are also part of the IPWG mandate in cooperation with WMO and other bodies.
国际降水工作组（IPWG）是气象卫星协调小组（CGMS）的一个常设国际科学工作组（ISWG），由CGMS和世界气象组织（WMO）共同发起。IPWG为国际科学界提供了一个重点平台和论坛，以解决基于卫星的定量降水反演问题和挑战，并为运营机构获取和使用降水产品提供便利。通过合作关系和两年一次的会议，该小组支持就降水反演和测量技术进行信息交流，并加强星载降水反演在数值天气预报、水文气象预测和气候研究中的作用。该小组推动当前估算技术的完善和新方法的开发，以改进全球降水测量，并通过地面降水测量对反演得到的降水产品进行验证。IPWG确定关键问题，向CGMS提供建议，并支持即将开展的以降水为导向的任务。与WMO和其他机构合作开展的从太空反演降水的培训活动也是IPWG任务的一部分。
