Borehole deformation data 2016-2023 from Murtèl rock glacier (Engadine, Switzerland)

Description The dataset presented here is partially accompanying the publication "Multi-annual and seasonal patterns of Murtèl rock glacier borehole deformation, environmental controls and implications for kinematic monitoring". The main focus is the borehole drilled in 2015 in the lower center of the Murtèl rock glacier. For more details about its installation and the instrumentation refer to the paper publication. Inclinometer instrument specifications: 46.428920533˚N, 9.821705857˚E, 2718 m a.s.l. 40 m long 50 cm long rigid segments define the vertical spatial resolution (one measurement every 50 cm) Triaxial MEMS gravity sensors every segment to measure the tilt angle relative to the vertical Temporal resolution: 6 hours The raw angle data is converted into useful position data via the Measurand SAASuite v3.07 software. The software provided by the manufacturer of the ShapeAccelArray (SAA) field inclinometer outputs files in a MATLAB format. So, the recommended software is MATLAB; however, a script to extract the variables and process the data in Python is provided with the import_SAA_data.py script. The MATLAB data files published here are split into three periods based on when the data was collected: 2016-17, 2017-18 and 2018-23. For those not interested in going through the data pre-processing with the import_SAA_data.py script, a CSV file with the already processed data is also provided as SAA_16_23_defo.csv, which is the output from running the processing script as instructred below. SAA_16_23_defo.csv metadata: Start: 2016-01-06 12:05:00 End: 2023-09-14 06:05:00 Depth fields: header is made up of a sequence of integers from 0 to 80, where 80 = 0 m depth and 0 = 40 m depth, so each column is seperated by a 0.5 m increment (see sensor_no_to_depths.csv file for complete depth index to depth conversion) 'time' column is in YYYY-MM-DD HH:MM:SS format Instructions for creating the final CSV file: These are the instructions to run the pre-processing import_SAA_data.py script. Download all files and place them in the same folder. To run the script complete the file paths based on where you saved the files to import the data. The script then merges the data into the complete time period from April 2016 until August 2023 and calculates cumulative deformation for all depths relative to a reference date which is adjustable. The function to calculate deformation has a smoothSwitch to toggle a 5-day moving window averageing and a dailySwitch to toggle the resampling from a 6-hour temporal resolution to daily. The resulting deformation data is exported into a CSV file.