Methods to homogenize wind speeds from ships and buoys

Thomas, B.R.; Kent, E.C.; Swail, V.R.. 2005 Methods to homogenize wind speeds from ships and buoys. International Journal of Climatology, 25 (7). 979-995.

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Marine winds reported by Voluntary Observing Ships (VOS) and moored buoys require adjustment to provide a homogeneous record of the marine climate. Known sources of inhomogeneity arise from differences in measurement height and method, averaging method and atmospheric stability; methods are available to correct for these. However, significant differences remain in a paired dataset of ship and buoy winds. Regression methods to remove this remaining inconsistency are discussed, and a ranked regression method chosen as most appropriate to adjust ship wind speeds to yield a similar distribution. We show the factors, such as vessel type, that affect the regression results. The corrections, derived from a high-quality paired dataset with rigorous quality control, are effective at reducing inhomogeneity in monthly mean wind speed distributions derived from the International Comprehensive Ocean–Atmosphere Data Set.

Item Type: Publication - Article
Digital Object Identifier (DOI):
ISSN: 0899-8418
Additional Keywords: wind speed, buoy, VOS, bias, ranked regression
Date made live: 29 Jun 2005 +0 (UTC)

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