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Dataset: Meltwater discharge, suspended sediment and bedload flux, air temperature and precipitation at the Otemma Glacier terminus (2022 melt season) - MaRDI portal

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Dataset: Meltwater discharge, suspended sediment and bedload flux, air temperature and precipitation at the Otemma Glacier terminus (2022 melt season)

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Dataset:Meltwater discharge, suspended sediment and bedload flux, air temperature and precipitation at the Otemma Glacier terminus (2022 melt season)



DOI10.5281/zenodo.13311473Zenodo13311473MaRDI QIDQ6679897

Dataset published at Zenodo repository.

Author name not available (Why is that?)

Publication date: 13 August 2024

Copyright license: No records found.



Description

This dataset extends existing timeseries from the Otemma Glacier terminus on meltwater discharge (Mller and Miesen, 2022), suspended sediment and bedload flux (Mancini et al., 2023a), and air temperature and precipitation (Mller, 2022) into the 2022 melt season. The methodologies used for data collection were consistent with those used in previous years (see included technical report). Water and sediment flux measurements were performed at gauging station GS1 (aka Station 1) located in the main proglacial river, approx. 0.35 downstream of the glacier terminus (Mller and Miesen, 2022; Mancini et al., 2023a). Air temperature and precipitation data were collected at the "Glacier snout station" adjacent to GS1 (Mller, 2022). Data collection specifics for the 2022 melt season are provided in the report2022.pdf file. DATA:river.csv - water and sediment flux timeseries from GS1 with columns:year: yyyyfrac_day: fractional day of the yeardt: measurement interval [mins]Qw: meltwater discharge [m3/s]Qss: suspended sediment flux [kg/s]Qb: bedload flux [kg/s]Qxx_lo or Qxx_hi: the lower and upper uncertainty bounds for Qw, Qss, Qb [kg/s]Extended data for 2020 and 2021 melt seasons also included* weather.csv - air temperature and precipitation timeseries spanning 18 Nov 2021 to 16 Aug 2022 from 'Glacier snout station' with columns:datetime: local time (UTC+01 with DST) [yyyy-mm-dd hh:mm:ss]temperature: air temperature [C]precipitation: liquid or solid precipitation [mm w.eq.] *Extended flux datasets are also provided for 2020 and 2021 given the difference in scope between Mancini et al. (2023b) and Jenkin et al. (2024, submitted for review). The datasets in Mancini et al. (2023b) have been post-processed for comparative analysis between two different gauging stations (upstream and downstream), while in this work, the most temporally complete timeseries of subglacial sediment export at the upstream gauging station was required. Therefore, the data provided here for 2020 and 2021 include: (i) a short extension of the timeseries, (ii) the removal of a suspended sediment clipping threshold, and (iii) filling of gaps in the 2020 suspended sediment timeseries with real measured data.






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