Prytherch, J.; Yelland, M.J. 
ORCID: https://orcid.org/0000-0002-0936-4957; Pascal, R.W..
2010
HiWASE: instrument alignments.
Southampton, UK, National Oceanography Centre Southampton, 12pp.
(National Oceanography Centre Southampton Internal Document 18)
Alignment offsets between anemometers and motion-sensing instruments are a source of uncertainty for eddy correlation flux measurements made at sea. A previously described laboratory technique (Brooks, 2008) has been utilised to determine the pitch, roll and yaw offsets between flux instruments installed on the weathership Polarfront as part of the HiWASE project. Pitch and roll offsets were determined with an uncertainty of between 0.02° and 0.08°. Yaw offsets were determined with an uncertainty of between 0.5° and 1.2°.
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