Title: Hydrochemistry, runoff and mapped disturbances of Low Arctic Watersheds on Herschel Island, Yukon Territory, Canada, in year 2016
Citation: Coch, Caroline; Ramage, Justine L; Lamoureux, Scott F; Meyer, Hanno; Knoblauch, Christian; Lantuit, Hugues (2018): Hydrochemistry, runoff and mapped disturbances of Low Arctic Watersheds on Herschel Island, Yukon Territory, Canada, in year 2016 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.893999
Study Site: Herschel Island, Yukon
Purpose: Climate change in the Arctic leads to permafrost degradation and to associated changes in freshwater geochemistry. There is a limited understanding of how disturbances such as active layer detachments or retrogressive thaw slumps impact water quality on a catchment scale. This study investigates how permafrost degradation affects concentrations of dissolved organic carbon (DOC), total dissolved solids (TDS), suspended sediment, and stable water isotopes in adjacent Low Arctic watersheds.
Abstract: Geospatial Data:
- Watershed delineation based on hydrology toolbox in ArcGIS (ESRI, version 10.3)
- Mapped disturbances based on aerial photographs from 1952 and 1970 (for Ice Creek East, Ice Creek West and Eastern Gully only) and satellite imagery from 2011 (GeoEye-1) and 2015 (WorldView2). Note that no disturbances were found in Slump D creek.
Hydrology Data:
- Manual flow measurements with the Flo-Mate 2000 Flow Meter different streams on Herschel Island
- Runoff data in Ice Creek East - continuous measurements
- Runoff data in Ice Creek West - continuous measurements
Hydrochemistry Data:
- hydrochemistry data of 2016 including pH, conductivity, turbidity, stable water isotopes, solutes, POC and DOC
More details on the methods can be found in the accompanying manuscript.
Supplemental Information Summary:
Research:
Further Info: Coch, C et al. (2020): Spatial variability of dissolved organic carbon, solutes, and suspended sediment in disturbed low Arctic coastal watersheds. Journal of Geophysical Research: Biogeosciences, 125(2), https://doi.org/10.1029/2019JG005505
Status: Complete
Keywords:
mapping,
hydrology,
dissolved organic carbon,
Geographical coordinates: North: 69.59, South: 69.57 East: -138.88 West: -139.00
Bounding Temporal Extent: Start Date: 2016-04-15, End
Date: 2016-08-15
