Meltwater stage and discharge from outlet stream from Khumbu Glacier, Everest region, Nepal, between 14th May and 13th November 2014
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A hydrological monitoring station for Khumbu Glacier, Nepal, was established in a stable reach of the sole outflow channel at 4930 m a.s.l.. at approximately 27°56'02"N 86°48'44"E where meltwater breaches the lateral/terminal moraine ridge. Average water stage (S) was recorded at 30 min intervals using a Druck PDCR1730 pressure transducer and Campbell Scientific (CS) CR1000 data logger. Stage is given as DN.
To derive discharge (Q), a stage-discharge rating curve was developed using 18 dilution experiments of 10% fluorescein and a Turner Designs Cyclops7 fluorometer linked to a CS CR10X datalogger. Rating curve observations covered the lowermost 50% of stage values recorded, and uncertainty in Q is estimated at 10-15%.
The non-linear exponential stage-discharge relationship was given as: Q = 0.2839.e^(5.55397.S). Discharge is in m^3/s.
Data extends from 14th May (DOY134) to 13th November (DOY317), and time is given as decimal-day format (DOY135.5 = 12:00 midday on DOY135).
尼泊尔昆布冰川(Khumbu Glacier)的水文监测站设立于海拔4930米的唯一出水河道稳定河段,地理坐标约为北纬27°56′02″、东经86°48′44″,该处融水侵蚀侧碛/终碛垄。监测采用Druck PDCR1730型压力传感器与Campbell Scientific(CS)CR1000型数据采集器,以30分钟为间隔记录平均水位(S),水位以DN值表征。
为推求流量(Q),研究基于18组10%浓度荧光素稀释试验,结合连接CS CR10X数据采集器的Turner Designs Cyclops7型荧光计,建立了水位-流量分级曲线。该曲线的观测数据覆盖所记录水位值的最低50%区间,经估算流量的不确定性为10%~15%。
该非线性指数型水位-流量关系表达式为:Q = 0.2839·e^(5.55397·S),其中流量单位为立方米每秒(m³/s)。
数据集时间跨度为5月14日(年积日Day of Year,DOY134)至11月13日(DOY317),时间采用十进制日格式(例如DOY135.5即年积日第135天的正午12:00)。
创建时间:
2018-02-14



