Abstract:
The dataset lists information about the instrumentation of boreholes drilled into Khumbu Glacier, Nepal. Boreholes were drilled in May 2017 and May 2018 to investigate the internal properties of Khumbu Glacier, specifically ice thickness, temperature, deformation and structure, as part of the NERC-funded 'EverDrill' research project. The information provided includes each borehole's ID, length, location, elevation and instrumentation, including the type and depth of each sensor.
Funding was provided by the NERC grant NE/P00265X/1 and NE/P002021/1.
Keywords:
Ice boreholes, Ice temperature, Khumbu Glacier, Nepal
Hubbard, B., Miles, K., Quincey, D., & Miles, E. (2019). Summary of instrumentation installed in boreholes drilled into Khumbu Glacier, Nepal, in 2017 and 2018 as part of EverDrill research project (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/a7f28dea-64f7-43b5-bc39-a6cfcdeefbda
| Access Constraints: | No restrictions apply. |
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| Use Constraints: | This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2019-01-09 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK Polar Data Centre |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Bryn Hubbard |
| Role(s) | Investigator, Technical Contact |
| Organisation | Aberystwyth University |
| Name | Katie Miles |
| Role(s) | Investigator |
| Organisation | Aberystwyth University |
| Name | Duncan Quincey |
| Role(s) | Investigator |
| Organisation | University of Leeds |
| Name | Evan Miles |
| Role(s) | Investigator |
| Organisation | University of Leeds |
| Parent Dataset: | N/A |
| Reference: | Miles, K.E., Hubbard, B., Quincey, D.J., Miles, E.S., Sherpa, T.C., Rowan, A.V. and Doyle, S.H. (2018), Polythermal structure of a Himalayan debris-covered glacier revealed by borehole thermometry, Scientific Reports, 8, 16825. | |
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| Lineage: | Borehole information was collected while boreholes were drilled using a hot-water drill in 2017 and 2018 on Khumbu Glacier, Nepal. Location and elevation were measured with a handheld GPS unit. Borehole depth was measured from the length of drilling hose in the borehole at the time when drilling progress ceased, and confirmed from the length of sensor cable lowered into the borehole. The type, and depth at which each sensor was installed is detailed, as well as each sensor ID. | |
| Temporal Coverage: | |
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| Start Date | 2017-04-01 |
| End Date | 2017-05-31 |
| Start Date | 2018-04-01 |
| End Date | 2018-05-31 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | 27.94 |
| Northernmost | 27.99 |
| Longitude | |
| Westernmost | 86.16 |
| Easternmost | 86.85 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Nepal |
| Detailed Location | Khumbu Glacier, Himalaya |
| Data Storage: | The data are structured in five comma-separated ASCII files (*.csv format), one for each of the EverDrill drill sites. Each file is 1-2 KB in size. Each file lists information about each borehole that was instrumented: 'Borehole #' refers to the full borehole ID; 'Length (m)' to the full length of each borehole, in metres; 'Location' to the location of each borehole (WGS 84); 'Elevation (m a.s.l.)' the height above sea level of the surface of each borehole, in metres; and 'Sensors' to the type of sensors that were installed in that borehole. For each of these sensor types, the number of sensors is then listed below ('Sensor #' and 'Sensor ID'), along with the depth of each sensor from the ice surface. |
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