“四预”究竟是什么？知识点来了

Core Viewpoint - The article emphasizes the importance of the "Four Pre" functions—forecasting, early warning, simulation, and planning—in enhancing the effectiveness of flood and drought disaster prevention in China's water management system [1]. Group 1: Four Pre Functions - Forecasting serves as the foundation, utilizing mathematical models to predict various water safety factors such as precipitation, water levels, and flow rates, thereby providing critical time for flood prevention efforts [4]. - Early warning acts as a frontline measure, delivering timely information to frontline water management teams to guide emergency responses like engineering inspections and personnel evacuations [3]. - Simulation involves modeling typical historical events and future scenarios within a digital twin environment to develop risk mitigation strategies for water management [7]. - Planning is based on simulations and considers actual engineering and social conditions to create actionable measures, ensuring the feasibility of the plans [6].