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HiWASE: instrument alignments

By J. Prytherch, M.J. Yelland and R.W. Pascal

Abstract

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°

Publisher: National Oceanography Centre Southampton
Year: 2010
OAI identifier: oai:nora.nerc.ac.uk:257239

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