Subglacial Lake Whillans: Views of the Borehole, and Water and Sediment Samples
Four days of 24-hour borehole operations were carried out at the WISSARD site at Subglacial Lake Whillans. Using a specially-designed hot water drill to ensure clean access to the pristine subglacial environment, a 800 meter borehole was drilled into the ice to access the lake. A unique underwater camera designed by Dr. Alberto Behar from Arizona State University and the NASA Jet Propulsion Laboratory (JPL) captured the beautiful images of the borehole, shown here. Both water and sediment samples were collected from the lake. Water sampling tools deployed included a niskin water sampler, which allows water sample collection at designated depths, an in situ McLane water sampler that concentrates water particulates on filters for further analyses, and a CTD which measures Conductivity, Temperature and water Depth.
Three different sediment sampling tools were used including a multi-corer, which collected 3 ~40 cm cores each time it was deployed, a piston corer, and a larger percussion corer. For more information about our sampling tools, check out the Science Instrumentation section of the WISSARD webpage.