UAV imagery over K-sector of the Greenland Ice Sheet on 8 August 2014, supplement to: Ryan, Jonathan C; Hubbard, Alun L; Stibal, Marek; Irvine-Fynn, Tristram D L; Cook, Joseph; Smith, Laurence C; Cameron, Karen; Box, Jason E (2018): Dark zone of the Greenland Ice Sheet controlled by distributed biologically-active impurities. Nature Communications, 9(1)

• Main Authors: Ryan, Jonathan C, Hubbard, Alun L, Stibal, Marek, Irvine-Fynn, Tristram D L, Cook, Joseph, Smith, Laurence C, Cameron, Karen, Box, Jason E
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2018
• Subjects: LATITUDE; LONGITUDE; ALTITUDE; Roll angle; Pitch angle; Yaw angle; File name; File format; File size; Uniform resource locator/link to file; Unmanned aerial vehicle; Greenland; Ice Sheet
• Online Access: https://dx.doi.org/10.1594/pangaea.885798; https://doi.pangaea.de/10.1594/PANGAEA.885798

Digital imagery acquired by a Sony NEX-5N digital camera vertically mounted inside a fixed-wing UAV. The UAV surveyed a 25 km east-west transect dissecting the dark zone of the K-sector of the Greenland Ice Sheet on 8 August 2014. The camera has a 16 mm fixed focus lens (53.1 by 73.7° field of view) yielding an image footprint of approximately 525 x 350 m during the autonomous sortie. The camera was preset with a fixed shutter speed of 1/1000 s, ISO 100 and F-stop of 8. The images have a pixel footprint of approximately 11 cm. A corresponding csv file provides the UAV geolocation and attitude data for each image. The data were logged by an Arduino navigation and flight computer in real-time by a 10 Hz data stream comprising of a GPS, magnetometer, barometer and accelerometer.