Locations and lengths of boreholes drilled into Khumbu Glacier, Nepal, in 2017 and 2018 as part of EverDrill research project

• Main Authors: Hubbard, Bryn, Miles, Katie, Quincey, Duncan, Miles, Evan
• Format: Dataset
• Language: English
• Published: UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation 2019
• Subjects: "EARTH SCIENCE","CRYOSPHERE","GLACIERS/ICE SHEETS","GLACIERS"; "EARTH SCIENCE","CRYOSPHERE","GLACIERS/ICE SHEETS","GLACIER THICKNESS/ICE SHEET THICKNESS"; Ice Sheet
• Online Access: https://dx.doi.org/10.5285/65140444-b5fa-4a5e-9ab4-e86c106051e2; https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01125

The dataset lists information about boreholes drilled by hot water 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 (at the time of drilling), elevation and instrumentation. Funding was provided by the NERC grant NE/P00265X/1 and NE/P002021/1. : 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, where applicable. Boreholes that were instrumented with sensors (to measure ice temperature, tilt, hydrological information) or that were logged by an optical televiewer (OPTV) are noted.