Introduction
Germany's National Meteorological Service,the Deutscher Wetterdienst (DWD), is a public institution with partial legal capacity under the Federal Ministry of Transport and Digital Infrastructure. It is responsible for meeting meteorological requirements arising from all areas of economy and society in Germany.It's tasks:The provision of meteorological services；The meteorological safeguarding of aviation and shipping；The issuing of official warnings about dangerous weather phenomena；Short and long-term recording, monitoring, and evaluation of meteorological processes in the atmosphere, its structure and composition；The recording of interactions between the atmosphere and other environmental spheres；The forecasting of meteorological processes；The monitoring of the atmosphere for radioactive trace elements and the forecasting of their dissemination；The operation of the necessary measuring and observation systems；The provision, storage, and documentation of meteorological data and products.
