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首页> 外文期刊>US Geological Survey Bulletin >Estimated and Measured Traveltime for the Crow River Watershed, Minnesota
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Estimated and Measured Traveltime for the Crow River Watershed, Minnesota

机译：明尼苏达州乌鸦河流域的估计和实测旅行时间

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A time-of-travel study involving a luminescent dye was done on the Crow River in Minnesota from Rockford to the confluence with the Mississippi River at Dayton on July 11, 2006, at a streamflow of 293 cubic feet per second at Rockford. Dye was injected in the Crow River at Rockford, and traveltime and concentrations were measured at three sampling locations downstream: at the Hanover historic bridge in Hanover, at County Road 116 near St. Michael, and at County Road 12 in Dayton. The results of the measured traveltimes were compared to estimated traveltimes from a previous study of the Crow River and six other rivers in the Upper Mississippi River basin in 2003. Regression equations based on watershed characteristics of drainage area, river slope, mean-annual streamflow, and instantaneous streamflow at the time of measurement from more than 900 stream segments across the Nation were used to estimate traveltimes. Traveltimes were estimated and measured for the leading edge, peak concentration, and trailing edge of tracer-response curves. Estimated traveltimes for the leading edge, peak concentration, and trailing edge at Dayton were 25.3, 28.4, and 35.6
机译：2006年7月11日，在罗克福德从明尼苏达州的克罗河到代顿的密西西比河汇合处，进行了一次涉及发光染料的旅行研究，在罗克福德的流量为每秒293立方英尺。在罗克福德的乌鸦河中注入了染料，并在下游的三个采样位置测量了行进时间和浓度：在汉诺威的汉诺威历史性桥梁，圣迈克尔附近的County Road 116和代顿的County Road 12。将实测行程时间的结果与2003年以前对密西西比河上游流域的乌鸦河和其他六条河流的估计行程时间进行了比较。基于流域分水岭特征，河流坡度，年平均流量，在测量时，来自全国各地900多个水流段的瞬时水流被用来估算旅行时间。估计并测量了示踪剂响应曲线的前沿，峰浓度和后沿的行程时间。代顿的前沿，峰浓度和后沿的估计旅行时间为25.3、28.4和35.6

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