Carnivore Creek discharge and suspended sediment concentration, Alaska, 2015-2018

A gauging station was installed in Carnivore Creek during the following months/years during four field seasons: May-August 2015, May-August 2016, May-August 2017, and May-August 2018. During the 2015, 2016, and 2017 field seasons, water pressure, turbidity, temperature and conductivity measurements were acquired every 30-60 minutes using a Troll9500 (raw data). Back-up measurements for pressure and temperature for datasets in 2015, 2016, and 2017, as well as the entire 2018 dataset, were acquired using a Hobo Water Level Logger - U20L-03. Water pressure was corrected for atmospheric pressure and converted to stage, and a discharge (Q) rating curve was built for each field season by acquiring periodic discharge measurements using an hand held Hach FH950 flow meter. These continuous measurements and calculations are available in the following file: "CAR_Q_continuous". Water samples were collected during the discharge measurements using a DH-48 and suspended sediment concentration (SSC) was obtained from filtration of the water samples. These manual measurements are available in the following file: "CAR_Q_SSC_manual". Because the location of instruments in the creek changed slightly between years, upper and lower uncertainty limits (95%) are provided for 2016-2018 datasets. Codes are provided to specify the rating curve or other method used to calculate continuous Q. Continuous Q datasets were infilled and/or extended where possible by analyzing daily photographs of the river gaging station. The study, as well as detailed 2015 and 2016 datasets, is described in a MS thesis: Thurston, L.L., 2017. Modeling Fine-grained Fluxes for Estimating Sediment Yields and Understanding Hydroclimatic and Geomorphic Processes at Lake Peters, Brooks Range, Arctic Alaska. MS Thesis, Northern Arizona University, Flagstaff, Arizona, ProQuest ID (identifier) 2025947690.

本研究在4个野外季期间于食肉兽溪（Carnivore Creek）布设了水文测站，具体时段为2015年5-8月、2016年5-8月、2017年5-8月及2018年5-8月。2015、2016、2017年野外季期间，采用Troll9500型仪器以30~60分钟的间隔采集水压、浊度、温度及电导率原始数据。2015、2016、2017年数据集的水压与温度备份测量数据，以及完整的2018年数据集，均采用Hobo水位记录仪U20L-03采集。对实测水压进行大气压校正并转换为水位高程；随后通过手持式Hach FH950型流量计定期开展流量观测，为每个野外季建立流量（Q）水位流量关系曲线（rating curve）。上述连续观测数据与计算结果均存储于文件"CAR_Q_continuous"中。流量观测期间采用DH-48型设备采集水样，并通过过滤水样得到悬移质泥沙浓度（Suspended Sediment Concentration，SSC）。此类人工观测数据存储于文件"CAR_Q_SSC_manual"中。由于各年度溪内仪器布设位置略有变动，2016~2018年数据集提供了95%置信度的上下不确定度限值。配套提供了用于指定水位流量关系曲线或其他连续流量（Q）计算方法的代码。可通过分析水文测站的每日影像，在可行范围内补全或延伸连续流量数据集。本研究及2015、2016年详细数据集的相关信息可参阅硕士论文：Thurston, L.L.，2017年。《细颗粒泥沙输运模拟：估算泥沙产量及解析阿拉斯加北极布鲁克斯山脉彼得斯湖的水文气候与地貌过程》（原文标题：Modeling Fine-grained Fluxes for Estimating Sediment Yields and Understanding Hydroclimatic and Geomorphic Processes at Lake Peters, Brooks Range, Arctic Alaska）。硕士论文，北亚利桑那大学，亚利桑那州弗拉格斯塔夫，ProQuest编号：2025947690。