READ ME File For 'Stadara discharge& GPS velocity' Dataset DOI: 10.5258/SOTON/XXXXXX Date that the file was created: March, 2021 ------------------- GENERAL INFORMATION ------------------- ReadMe Author: Jane Hart, University of Southampton [OPTIONAL add ORCID 0000-0002-2348-3944] Date of data collection: 01/08/2012-04/10/2014 Information about geographic location of data collection:Skalafellsjokull, Iceland Related projects:GLACSWEB -------------------------- SHARING/ACCESS INFORMATION -------------------------- Licenses/restrictions placed on the data, or limitations of reuse:none Recommended citation for the data: This dataset supports the publication: AUTHORS:J.K. Hart, D.S. Young, N.R. Baurley, B. A. Robson & K. Martinez TITLE:The seasonal evolution of subglacial drainage pathways beneath a soft-bedded glacier JOURNAL:Nature: Communications Earth & Environment PAPER DOI IF KNOWN: Links to other publicly accessible locations of the data:n/a Links/relationships to ancillary or related data sets: n/a -------------------- DATA & FILE OVERVIEW -------------------- This dataset contains: [File list (filenames, directory structure (for zipped files) and brief description of all data files)] [StadaraDischarge&GPSvelocity.csv Daily discharge data from image processed images and GPS data Relationship between files, if important for context:n/a Additional related data collected that was not included in the current data package:n/a If data was derived from another source, list source:n/a If there are there multiple versions of the dataset, list the file updated, when and why update was made:n/a -------------------------- METHODOLOGICAL INFORMATION -------------------------- Description of methods used for collection/generation of data: Young, D.S., Hart, J.K. and Martinez, K., 2015. Image analysis techniques to estimate river discharge using time-lapse cameras in remote locations. Computers & Geosciences, 76, pp.1-10. Methods for processing the data:Details of image processing of images in Young et al (2015). Surface ice velocity was measured from 2008-2012 with a TOPCON Legacy-H L1/L2 GPS (1km baseline) and from 2012-13 with an additional array of 4 dual frequency Leica System 1200 GPS systems at 15 second sampling rate, continuously during the summer and 2 hours a day during the winter (300 m baseline). The GPS data was processed with the ephemeris from the International GPS Service (IGS) stations using TRACK (v. 1.24), the kinematic software package developed by Massachusetts Institute of Technology (MIT) Software- or Instrument-specific information needed to interpret the data, including software and hardware version numbers:n/a Standards and calibration information, if appropriate: Environmental/experimental conditions: see ref above Describe any quality-assurance procedures performed on the data: Image processing images with >2s.d. were removed. GPS outliers were removed. People involved with sample collection, processing, analysis and/or submission:Hart, J.K., Young, D.S., Martinez, K. Basford, P.J. and Glacsweb Iceland Team 2012 -------------------------- DATA-SPECIFIC INFORMATION -------------------------- Number of variables:2 Number of cases/rows: 489 Variable list, defining any abbreviations, units of measure, codes or symbols used: Daily discharge cubic meters, Scaled (based on glacier depth) average of 3 GPS units on the glacier surface m per annum. Missing data codes:n/a Specialized formats or other abbreviations used:n/a