@Article{VoermansBaKiCaSaPaPe:2021:WaAnDe,
               author = "Voermans, J. J. and Babanin, A. V. and Kirezci, C. and Carvalho, 
                         Jonas Takeo and Santini, Marcelo Freitas and Pavani, B. F. and 
                         Pezzi, Luciano Ponzi",
          affiliation = "{University of Melbourne} and {University of Melbourne} and 
                         {University of Melbourne} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Universidade de S{\~a}o Paulo (USP)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Wave anomaly detection in wave measurements",
              journal = "Journal of Atmospheric and Oceanic Technology",
                 year = "2021",
               volume = "38",
               number = "3",
                pages = "525--536",
                month = "Mar.",
             abstract = "Quality control measures for ocean waves observations are 
                         necessary to give confidence of their accuracy. It is common 
                         practice to detect anomalies or outliers in surface displacement 
                         observations by applying a standard deviation threshold. Besides 
                         being a purely statistical method, this quality control procedure 
                         is likely to flag extreme wave events erroneously, thereby 
                         impacting higher-order descriptions of the wave field. In this 
                         paper we extend the use of the statistical phase-space threshold, 
                         an established outlier detection method in the field of 
                         turbulence, to detect anomalies in a wave record. We show that a 
                         wave record in phase space (here defined as a diagram of 
                         displacement against acceleration) can be enclosed by a 
                         predictable ellipse where the major and minor axes are defined by 
                         the spectral properties of the wave field. By using the 
                         parameterized ellipse in phase space as a threshold to identify 
                         wave anomalies, this is a semiphysical filtering method. Wave buoy 
                         data obtained from a mooring deployed near King George Island, 
                         Antarctica [as part of the Antarctic Modeling Observation System 
                         (ATMOS)], and laser altimeter data obtained at the Northwest Shelf 
                         of Australia were used to demonstrate the functioning of the 
                         filtering methodology in identifying wave anomalies. Synthetic 
                         data obtained using a high-order spectral model are used to 
                         identify how extreme waves are positioned in phase space.",
                  doi = "10.1175/JTECH-D-20-0090.1",
                  url = "http://dx.doi.org/10.1175/JTECH-D-20-0090.1",
                 issn = "0739-0572",
             language = "en",
        urlaccessdate = "20 maio 2024"
}