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首页> 外文期刊>Canadian Water Resources Journal >Assessing the quality of the streamflow record for a long-term reference hydrometric station: Bow River at Banff
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Assessing the quality of the streamflow record for a long-term reference hydrometric station: Bow River at Banff

机译：评估长期参考水文站的流量记录质量：班夫的弓河

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The operational history of one of Canada's longest operating hydrometric stations is reviewed in detail, including flood estimates that precede formal hydrometric monitoring. The assessment inspects the early and operational history, the published streamflow record and the stage-discharge measurements collected since 1909. Methods used to estimate pre-operational high flows and the operational history are reviewed to establish potential issues with changes in technology, location and measurement sections. The streamflow record is screened for discontinuities and change. The stage-discharge measurements used to establish the rating curve for open-water and ice-covered periods are assessed and used to establish the degree of support for the published data over the period of record. In the period 1882 to 1909, occasional high-stage estimates were used to estimate peak discharge, but with considerable uncertainty due to lack of stream velocity measurements and bed profiles. For the period 1909-1914 it is difficult to confirm the validity of the data as benchmarks and gauge corrections are unclear. Since 1922 when the station was established in its present location, many changes in the technology used for recording stage and measuring discharge have occurred. Rating curve support for high and low flows has varied over the period of record, particularly after cableway measurements of high flows were recently abandoned. Several important quality issues were identified that may require user caution, most notably an inconsistency with respect to the recording of winter ice-cover. These changes and issues have not affected the quality of the record in any substantial way. The stability of the flow control has remained remarkably consistent, resulting in high data quality for most of the period of record.
机译：详细审查了加拿大运行时间最长的水文站之一的运行历史，包括在正式水文监测之前进行的洪水估算。该评估检查了自1909年以来收集的早期和运营历史，已发布的水流记录和阶段流量测量结果。评估了用于估算术前高流量和运行历史的方法，并进行了审查，以确定技术，位置和测量变化的潜在问题。部分。筛选流记录中的不连续和变化。评估用于建立开阔水域和覆冰时期的等级曲线的阶段流量测量结果，并用于确定记录期间已发布数据的支持程度。在1882年至1909年期间，偶尔使用高级估算来估算峰值流量，但由于缺乏流速测量和床层剖面，因此不确定性很大。在1909年至1914年期间，由于基准和量规校正尚不清楚，因此难以确认数据的有效性。自1922年在现址建立该站以来，用于记录台和测量流量的技术发生了许多变化。在记录期间，高流量和低流量的额定曲线支持有所不同，尤其是在最近放弃了对高流量的索道测量之后。确定了几个重要的质量问题，可能需要用户注意，最值得注意的是与冬季冰雪覆盖的记录不一致。这些更改和问题并没有实质性影响记录的质量。流量控制的稳定性一直非常稳定，从而在记录的大部分时间段内都具有很高的数据质量。

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