서울과 수도권 홍수/침수피해 및 수질개선과 관련된 미국 대도시 홍수침수피해방지 및 수질개선사업 Abstract Flash flood event, which are distinguished from a regular flood by a timescale less than six hours, in metropolitan urban area occurs frequently due significantly to global warming. Recent particular flood event in Seoul and its neighbor cites was later ..