Fechar
Metadados

@InProceedings{OliveiraEbCaNeSaOl:2006:CoSeLe,
               author = "Oliveira, Marilia Mitidieri Fernandes de and Ebecken, Nelson 
                         Francisco Favilla and Caloba, Luiz Pereira and Neves, Claudio 
                         Freitas and Santos, Isimar de Azevedo and Oliveira, Jorge Luiz 
                         Fernandes de",
          affiliation = "Instituto Alberto Luiz Coimbra de P{\'o}s-Gradua{\c{c}}{\~a}o e 
                         Pesquisa em Engenharia, Universidade Federal do Rio de 
                         Janeiro(COPPE/UFRJ) and Ilha do Fund{\~a}o, Cidade 
                         Universit{\'a}ria, Centro de Tecnologia-Caixa Postal 68501. 
                         21945-970 Rio de Janeiro, RJ, Brazil (Oliveira and Ebecken and 
                         Caloba and Neves) and Instituto de Geoci{\^e}ncias (IGEO), 
                         Departamento de Meteorologia, Universidade Federal do Rio de 
                         Janeiro (UFRJ), Ilha do Fund{\~a}o, Cidade Universit{\'a}ria 
                         21949-900, Rio de Janeiro, RJ, Brazil (Santos) and Instituto de 
                         Geoci{\^e}ncias, Departamento de Geografia, Universidade Federal 
                         Fluminense (UFF), Praia Vermelha 24210-340, Niter{\'o}i, RJ, 
                         Brazil (Oliveira)",
                title = "Coastal sea level response associated with frontal systems using 
                         conventional and NCEP/NCAR Reanalysis data, in Paranagu{\'a} Bay, 
                         Paran{\'a} State, Brazil",
            booktitle = "Proceedings...",
                 year = "2006",
               editor = "Vera, Carolina and Nobre, Carlos",
                pages = "1883--1895",
         organization = "International Conference on Southern Hemisphere Meteorology and 
                         Oceanography, 8. (ICSHMO).",
            publisher = "American Meteorological Society (AMS)",
              address = "45 Beacon Hill Road, Boston, MA, USA",
             keywords = "Coastal sea level response, oceanic and atmospheric interaction, 
                         tide variation in Bays, Reanalysis data.",
             abstract = "The main causes of the coastal sea level rising are the 
                         astronomical tides; however the effects of meteorological 
                         variables, also, are present in these variations. Frontal system 
                         associated with intense extra tropical cyclone reach the South 
                         Brazilian Coast in the 30 S and 50 W frequently. The objective 
                         of this work is to show these variations on South Atlantic coastal 
                         sea level in the Paranagu{\'a} Bay Paran{\'a} State - Brazil 
                         using meteorological series of conventional station and NCEP/NCAR 
                         Reanalysis data in the grid points on the interest oceanic area. 
                         It used a low-pass filter to remove the oscillations relative to 
                         the astronomical tide. Studies about the atmospheric driving 
                         forces were made through the statistical analysis in the time and 
                         frequency domain to know the lag time between the meteorological 
                         variables and the coastal sea level response to the occurrences of 
                         the low frequency atmospheric systems. To verify the local and 
                         remote influences in the entrance of the Paranagu{\'a} Bay, it 
                         was used hourly sea level records from the Wharf West in the 
                         Paranagu{\'a} Port and hourly average atmospheric pressure and 
                         wind from the Pontal do Sul station in the Paran{\'a} State in 
                         the 1997 to 1999 period. Atmospheric pressure and wind components 
                         of NCEP/NCAR Reanalysis grid points data in the domain from 25 S 
                         to 27 30' S and from the shoreline up to 45 W in the period from 
                         1997 to 1998 was used too. The statistical treatment of the series 
                         allowed defining the maximum existing correlations in the physical 
                         process. In such way, we could know the response of the mean sea 
                         level associated with the frontal systems passage. The use of the 
                         NCEP/NCAR Reanalysis data selected on the oceanic area and the 
                         conventional station data near the tide gauge station made 
                         possible the comparison among the respective results. Thus, the 
                         relations between the atmospheric phenomena and the response of 
                         the coastal sea level are more evident with the information 
                         proceeding of the several points. The correlations found using the 
                         meteorological conventional and NCEP/NCAR Reanalysis data show the 
                         local and remote influences in this region. The frequency domain 
                         analysis with the conventional data shows greatest values of 
                         cross-spectral density for events around 5 day periods with 
                         coherence between 90 and 98%. This can be justified due to the 
                         proximity of both stations (tide gauge and meteorological 
                         station), both suffering local influences of the migratory 
                         atmospheric events. An important result that we could verify 
                         through the use by NCEP/NCAR Reanalysis data was how remote events 
                         affect coastal sea level in the entrance of this Bay. It was 
                         verified, mainly, on the southward Paranagu{\'a} Bay grid points, 
                         that the meridional wind component presents high-energy values, 
                         showing the influence of the coast direction in this local. 
                         Additionally, the Reanalysis data showed to be a very good 
                         information source for the South Atlantic Ocean where data gaps 
                         are still substantial, making possible to understand better some 
                         atmospheric events in the Brazilian Coast Region.",
  conference-location = "Foz do Igua{\c{c}}u",
      conference-year = "24-28 Apr. 2006",
             language = "en",
         organisation = "American Meteorological Society (AMS)",
                  ibi = "cptec.inpe.br/adm_conf/2005/10.19.23.18",
                  url = "http://urlib.net/rep/cptec.inpe.br/adm_conf/2005/10.19.23.18",
           targetfile = "1883-1896.pdf",
                 type = "Weather analysis and forecasting",
        urlaccessdate = "21 jan. 2021"
}


Fechar