Irvine-Fynn, Tristram D L; Porter, P R; Rowan, Ann V; Quincey, Duncan J; Gibson, Morgan J; Bridge, J W; Watson, C Scott; Hubbard, Alun L; Glasser, Neil F (2017): Meltwater stage and discharge from outlet stream from Khumbu Glacier, Everest region, Nepal, between 14th May and 13th November 2014 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.883419, Supplement to: Irvine-Fynn, TDL et al. (2017): Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers. Geophysical Research Letters, 44(23), 11894-11904, https://doi.org/10.1002/2017GL075398
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Abstract:
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).
Coverage:
Latitude: 27.933890 * Longitude: 86.812220
Date/Time Start: 2014-05-14T16:30:00 * Date/Time End: 2014-11-13T09:30:00
Minimum Elevation: 4930.0 m * Maximum Elevation: 4930.0 m
Event(s):
KhumbuGlacier_outflow * Latitude: 27.933890 * Longitude: 86.812220 * Date/Time: 2014-01-01T00:00:00 * Elevation: 4930.0 m * Location: Nepal * Method/Device: River gauging station (RGS)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Irvine-Fynn, Tristram D L | Geocode | ||
| 2 | Day of the year | DOY | day | Irvine-Fynn, Tristram D L | ||
| 3 | Sensor reading | Reading | arbitrary units | Irvine-Fynn, Tristram D L | stage in DN | |
| 4 | River discharge | Q | m3/s | Irvine-Fynn, Tristram D L | formula Q = 0.2839 e^(5.55397 S) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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26313 data points
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