AUTOMATED STORM WATER SAMPLING ON SMALL WATERSHEDS

AUTOMATED STORM WATER SAMPLING ON SMALL WATERSHEDS
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小流域的自动暴雨采样

DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
R. M. Slade
R. M. Slade
中科院分区：
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文献类型：
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作者：
R. Harmel;K. King;R. M. Slade

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目前，很少有指导方针可以帮助设计适当的自动雨水采样。 小流域战略。因此，需要指导制定实现适当平衡的战略。 暴雨水质和负荷的准确表征与预算、设备和人员的限制之间的关系。在……里面 本文探讨了重要的采样策略组件(最小流量阈值、采样间隔和离散 与复合抽样相比)和特定于项目的考虑因素(抽样目标、抽样和分析资源以及 流域特征)基于个人经验以及相关的实地和分析研究。这些组件和 在实现抽样目标和限制之间的平衡时，考虑因素很重要，因为它们决定了如何 以及采样的时间和潜在的采样误差。提出了几个一般性建议，包括：设置 低最小流量阈值，使用流量间隔或可变时间间隔采样，并使用复合采样进行限制 采集的样本数量。提出了指导方针，以帮助选择基于以下因素的适当抽样策略 用户特定于项目的注意事项。我们的经验表明，这些建议应该允许实施 大多数具有共同抽样目标的小流域抽样项目的成功抽样策略。
Few guidelines are currently available to assist in designing appropriate automated storm water sampling strategies for small watersheds. Therefore, guidance is needed to develop strategies that achieve an appropriate balance between accurate characterization of storm water quality and loads and limitations of budget, equipment, and personnel. In this article, we explore the important sampling strategy components (minimum flow threshold, sampling interval, and discrete versus composite sampling) and project -specific considerations (sampling goal, sampling and analysis resources, and watershed characteristics) based on personal experiences and pertinent field and analytical studies. These components and considerations are important in achieving the balance between sampling goals and limitations because they determine how and when samples are taken and the potential sampling error. Several general recommendations are made, including: setting low minimum flow thresholds, using flow-interval or variable time-interval sampling, and using composite sampling to limit the number of samples collected. Guidelines are presented to aid in selection of an appropriate sampling strategy based on user’s project -specific considerations. Our experiences suggest these recommendations should allow implementation of a successful sampling strategy for most small watershed sampling projects with common sampling goals.