Schlundt, M. , Farrar, J. T., Edson, J. B., Bigorre, S., Vandemark, D. and Emond, M. (2018) Detailed investigation of the role of buoy wind errors in buoy-scatterometer disagreement.. [Poster] In: IOVWST Meeting 2018. , 24.-26.04.2018, Barcelona, Spain .

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Abstract

The comparison of equivalent neutral winds obtained from (a) three WHOI buoy in the subtropics and (b) scatterometer estimates at those locations reveals a very low root-mean-square difference (RMS) on the order of 0.5 m/s and a seasonal cycle in the RMS. To investigate this seasonal cycle, different buoy wind error sources were examined. Our buoys are particularly well suited to examine two important sources of buoy error: (1) redundant anemometers and information from numerical flow simulations allow us to quantitatively assess flow distortion errors, and (2) one-minute sampling at the buoys allows us to examine the sensitivity of buoy temporal sampling/averaging in the buoy-scatterometer comparisons. The seasonal cycle in RMS difference might result from other physical factors not accounted for in the conversion to equivalent neutral winds through bulk formulas or physical effects not modeled in the GMFs.

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