Quality
Reflection times corrected for delays in due to low velocity firn layer. Velocities derived from refraction measurements. Gravity derived depths from bouger anomalies.
ref1 = station, Internal_ref2 = method. Seismic reflection stations est. at 32 km intervals (20 mi.)
An entry of -9999 in the spreadsheet indicates null data.
Access Constraints
Raw data were stored on 35 mm black and white film. Copied film record; positive or negative (original data). Spreadsheet ice thicknesses (reduced data).