Abstract
A method for determining the angular offsets between measurement axes for multiple motion sensing systems and a sonic anemometer using underway data is demonstrated. This enables a single angular rate sensor to be used with spatially separated accelerometers, collocated with sonic anemometers, for the motion correction of turbulence measurements on a mobile platform such as a ship. Effective motion correction of turbulence measurements at sea is demonstrated. The errors in instrument alignment are considered, and estimates are made of the resulting biases in wind stress estimates.
Corresponding author address: Dr. Ian M. Brooks, Institute for Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds LS2 9JT, United Kingdom. Email: i.brooks@see.leeds.ac.uk