关于1998年长江洪水调度及认识

Regulation of 1998 Yangtze flood and relevant experience

１９９８年长江发生了本世纪内仅次于１９５４年的全流域性大洪水，洪水遭遇较恶劣，主要表现为水位高、洪量大。如何进行洪水调度关系防汛大局。根据不同阶段水雨情、工情的状况及发展，长江防总及时地对荆江分洪区、城陵矶附近区洪水调度提出了方案。调度过程分３阶段进行，即：第１阶段（６月１１日～７月２日）；第２阶段（７月３日～８月６日）；第３阶段（８月７日～８月３０日）。长江防总在整个调度过程中坚持科学调度，以实现“确保长江干堤安全、确保武汉市等重要城市安全、确保人民生命安全”的目标，及时为中央正确决策提供了科学依据。

In 1998, the second biggest flood in this century in the Yangtze occurred, which was only less than 1954 flood. It was characterized by high water level and large flood volume, with serious encounter situation of the floods both in main stem and tributaries. So the flood regulation had a bearing on the whole situation of flood fighting. In the light of the status and evolution of precipitation and flood regime, and of flood protection works, the Yangtze Flood Control Headquarter put forward flood regulation schemes in time for Jingjiang flood diversion area and nearby region of Chenglingji. The flood regulation was divided into 3 stages, i.e the first stage, from June 11 to July 2; the second stage, from July 3 to August 6; the third stage, from August 7 to August 30. In the whole flood regulation process, the YFCH insisted on scientific regulation so as to guarantee the safety of the Yangtze main dykes, the important cities such as Wuhan etc., and the peoples lives, and to provide scientific basis in time for the central authority to make correct decisions.