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首页> 外文期刊>Journal of the American Water Resources Association >ESTIMATING SUSPENDED SOLIDS FROM TURBIDITY IN THE ROBESON CREEK, NC WATERSHED
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ESTIMATING SUSPENDED SOLIDS FROM TURBIDITY IN THE ROBESON CREEK, NC WATERSHED

机译：从北卡罗来纳州罗伯逊湾的浑浊度估算悬浮固体

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摘要

The purpose of this project was to assess the effect of estimating total suspended solids (TSS) concentrations from turbidity on TSS loads for streams in the Robeson Creek watershed. Discharge was monitored continuously and base-flow grab and storm event composite samples were collected and analyzed for TSS and turbidity from five sites during five years of monitoring. For base-flow samples, the TSS-turbidity relationship for all five sites was poor indicating that TSS concentrations in base flow cannot be estimated from a TSS-turbidity relationship. To test the effect of analyzing fewer samples, TSS from every third and the first 20 samples collected from each site was used to develop TSS-turbidity relationships. In addition, the TSS-turbidity relationship developed from the most downstream site was used to estimate TSS concentrations from turbidity measured at the other four sites. For four of the five sites, analyzing every third sample for TSS and using the TSS-turbidity relationship to estimate the missing TSS concentrations would result in mean TSS loads that were not significantly different from the observed. Using the TSS-turbidity relationship from the outlet to estimate TSS from turbidity measured at the other four sites resulted in significantly different mean TSS loads at three of the four sites. These results indicate that estimating TSS concentrations from turbidity using a TSS-turbidity relationship developed from a subset of the overall dataset should be done with great caution.
机译：该项目的目的是评估从浑浊度估算总悬浮固体（TSS）浓度对Robeson Creek流域中溪流的TSS负荷的影响。连续监测排放情况，在监测的五年期间，从五个地点收集了基流抓斗和暴风雨事件复合样品并分析了TSS和浊度。对于基流样品，所有五个位点的TSS-浊度关系都很差，这表明无法根据TSS-浊度关系估算基流中的TSS浓度。为了测试分析较少样品的效果，使用每三个位置的TSS和从每个站点收集的前20个样品中的TSS来建立TSS浊度关系。此外，从最下游位置发展而来的TSS-浊度关系用于根据在其他四个位置测得的浊度来估算TSS浓度。对于五个站点中的四个站点，每隔三个样本分析一次TSS并使用TSS浊度关系来估计缺失的TSS浓度，则平均TSS负载与所观察到的不会有显着差异。使用出口处的TSS浊度关系从其他四个地点测得的浊度估算TSS会导致四个地点中三个地点的平均TSS负荷显着不同。这些结果表明，应使用从整体数据集的子集得出的TSS-浊度关系来估算浊度中的TSS浓度。

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