Author(s): James Reid; Bronwyn Kimber; Anthony Worby
Linked Author(s):
Keywords: No Keywords
Abstract: Calibration of ship-borne electromagnetic sea ice thickness data can be performed by making measurements at a range of heights over level sea ice of known thickness, and by comparing the observed data with the expected layered-earth response. Calibration corrections can be derived using least-squares inversion to minimise any error between the observed data and the theoretical response. These corrections can be applied to ship-borne sea ice thickness data during post-processing. Analysis of calibrated data indicates that ship-based vertical coplanar EM31 measurements can provide reliable estimates of the thickness of level sea ice up to around 2.7 m thick.
Year: 2002