Bowdoin Glacier borehole temperature data

These data contain temperature observation made between July 2014 and July 2017 in three boreholes drilled 2 km from the calving front of Bowdoin Glacier (Kangerluarsuup Sermia) in northwestern Greenland.

Reference:

• J. Seguinot, M. Funk, A. Bauder, T. Wyder, C. Senn and S. Sugiyama. Englacial warming indicates deep crevassing in Bowdoin Glacier, Greenland, Frontiers in Earth Sciences, 8:65, doi:10.3389/feart.2020.00065, 2020.

File names:

bowdoin.bh{1|2|3}.{inc|pzm|thr}.{dept|temp}.csv

• Borehole locations:
  • bh1: drilled 2 km from the calving front
    • 2014-07-16: 77.6912 °N, 68.5557 °E, 89 m
    • 2016-07-19: 77.6855 °N, 68.5681 °E, 63 m
    • 2017-07-14: 77.6832 °N, 68.5748 °E, 58 m
  • bh2: drilled 7 m away from BH1
    • 2014-07-17: 77.6913 °N, 68.5557 °E, 88 m
    • 2016-07-19: 77.6856 °N, 68.5680 °E, 60 m
    • 2017-07-14: 77.6833 °N, 68.5748 °E, 57 m
  • bh3: drilled 158 m downstream of BH1
    • 2014-07-22: 77.6900 °N, 68.5589 °E, 83 m
    • 2016-07-19: 77.6843 °N, 68.5726 °E, 43 m
    • 2017-07-14: 77.6819 °N, 68.5800 °E, 54 m
• Instrument types:
  • inc: digital inclinometers
  • pzm: basal piezometers
  • thr: thermistor strings
• Variables:
  • dept: initial sensor depth according to remaining cable lenghts
  • temp: temperature times series after recalibration

Data format:

The data use comma-separated plain text format (csv). Negative depths imply that sensors are located on the glacier surface. Sensor depths higher than the borehole depths imply that cables are not fully stretched. The data can be read by e.g. Pandas using:

pd.read_csv(filename, parse_dates=True, index_col='date')

Changelog:

• Version 1:
  • Initial version.