Geological Long Range Inclined Asdic (GLORIA) seabed side-scan sonar raw data acquired on Charles Darwin CD37 cruise in 1989

We present here side scan sonar datasets and accompanying quicklook seabed images of the Scotia Sea acquired by a GLORIA II (Geological Long Range Inclined Asdic) side scan sonar. The GLORIA instrument was operated on the Royal Research Ship (RRS) Charles Darwin 37 (CD37) research cruise during January - April 1989. The study area was the Scotia Sea, North Scotia Ridge (NSR), South Sandwich Island, South Sandwich Arc, and West Antarctic Peninsula (WAP) continental shelf, within the broader region of the Southern Ocean.

Raw data are presented in NetCDF format. These have been pre-processed from the binary pass data using the bas-gloria package (https://github.com/antarctica/bas-gloria). The data have been improved with additional metadata such as latitude, longitude and depth. In addition, "quicklook" seabed images generated from each pass file are provided as PNG images. Cruise tracks from the ship and side scan sonar are presented in CSV format.

The cruise was carried out in order to gain a better understanding of the Southern Ocean with a particular focus on:
- Tectonic history
- Active tectonic processes
- Paleoceanography
- Stratigraphy
- Ice dynamics during glacial intervals

This project was funded by BAS under project code B6153: Scotia Sea tectonic evolution and palaeo-circulation.