00000nam 2200000zi 4500 9.878588 CaOODSP 20241203113651 m o d f cr bn||||||||| 190827s1993 oncab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre ln----- En13-5/93-66E-PDF Katsaros, Kristina B., author. Flux measurements from a swath ship in SWADE / Kristina B. Katsaros, Mark A. Donelan, William M. Drennan. Burlington, Ontario : National Water Research Institute = Institut national de recherche sur les eaux, [1993]. 1 online resource (3 unnumbered pages, 16 pages, 13 unnumbered pages) : illustrations, map. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; no. 93-66 "Presented at 24th International Liege Colloquium on Ocean Hydrodynamics on "Sub-mesoscale Air-Sea Interactions", Liege, Belgium, May 4-8, 1992." "Journal of Marine Systems, 1993 (in press)." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 14-16). "The Surface Wave Dynamics Experiment (SWADE) took place east of the U.S. Coast in the winter of 1990-1991. A major objective of the research program is to refine our understanding of the relationship between fluxes to the sea surface and the sea state as determined from directional wave spectra. Simultaneous measurements of turbulent fluxes of mass, momentum and energy between sea and air, with the directional wave spectra, were required to meet this objective. In this short article we describe the process of obtaining turbulent flux measurements from a small water-plane-area twin hull (SWATH) ship. We measured turbulent fluxes of momentum, heat and water vapor from a tall mast at the bow of the SWATH ship "Frederick G. Creed" by the eddy correlation method, while the ship was moving into the wind. Directional wave spectra were obtained from a wave staff array ahead of the bow of the ship. The motion of the ship was recorded and a coordinate rotation was performed for each data sample. After all instrument response and motion corrections have been accounted for, we compare our calculated turbulent fluxes with values computed from another standard method, viz, the inertial dissipation method. This approach is not susceptible to platform motion but relies on assumptions that are not always valid. However, the two methods agree on average within 12%, 20% and 31% for momentum, water vapor and heat fluxes, respectively"--Abstract. Includes summaries and abstracts in English and French. Donelan, M. A. (Mark A.), 1942- author. Drennan, William M., author. Canada. Environment Canada. University of Washington. Dept. of Atmospheric Sciences. National Water Research Institute (Canada) NWRI contribution ; no. 93-66. (CaOODSP)9.844121 PDF 3.20 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-93-66-eng.pdf