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洪水预报是人类通过长期实践,逐步掌握洪水的发生、发展规律,在与洪水斗争中不断摸索、发展起来的。它是通过对观察水文气象的分析研究,在掌握其一定规律的基础上,根据前期和现时已出现的水文气象要素,对未来洪水的发生、发展过程作出的预报。在防汛工作中,洪水预报为及时采取各种防洪抢险工程措施提供依据,对指挥防汛斗争起着重要的耳
Flood forecasting is the long-term practice of mankind, and gradually master the occurrence and development of floods, and constantly explore and develop in the struggle against floods. It is through the observation and analysis of hydrological and meteorological research, on the basis of certain rules, according to pre-and present hydrological and meteorological elements, the future flood occurrence and development process to make a forecast. In flood control work, flood forecasting provides a basis for promptly taking various flood control and rescue engineering measures and plays an important role in guiding the flood control struggle