usgs2011.8.31---2011年洪水年

usgs2011.8.31---2011年洪水年
2011: The Year of the Flood
Devastating floods across much of the U.S. were severe and unrelenting during the spring and summer of 2011. When floods happen, USGS crews are among the first-responders. Often working in dangerous conditions, USGS scientists measure streamflow and river levels, repair and install streamgages, measure water quality and changes in sediment flow, and assess river changes. From flood forecasts to difficult decisions about flood management, science is critical for flood preparations and response.

2011年的洪水年
到美國的大部分地區的毀滅性洪災嚴重的，並在2011年春季和夏季的不懈。當洪水發生時，美國地質勘探局船員之間的第一反應。經常在危險的條件下，美國地質勘探局的科學家測量徑流和河流水位，維修和安裝 streamgages，測量水的質量和含沙水流的變化，並評估河的變化。從洪水預報困難的決定，關於洪水管理，科學是對洪水的準備和響應至關重要。