Now showing items 1-18 of 18

    • Analysis of wave directional spreading using neural networks 

      Deo, M.C.; Gondane, D.S.; SanilKumar, V. (ASCE, 2002)
      The short-term directional spreading of wave energy at a given location is popularly modeled with the help of the Cosine Power model. This model is oriented mainly around value of the spreading parameter involved in its ...
    • Design wave estimation considering directional distribution of waves 

      SanilKumar, V.; Deo, M.C. (Elsevier, 2004)
      The design of coastal and offshore structures requires design significant wave height having a certain return period. The commonly followed procedure to estimate the design wave height, does not give any consideration to ...
    • Determination of wave direction from linear and polygonal arrays 

      Fernandes, A.A.; Gouveia, A.D.; Nagarajan, R. (Elsevier, 1988)
      Two key issues that have militated against popular adoption of methods based on phase/time/path difference concepts for the determination of wave direction from array measurements are addressed in this paper: the first ...
    • Determination of wave direction using an orbital following buoy 

      Fernandes, A.A.; Almeida, A.M.; Vaithiyanathan, R.; Vethamony, P. (Publ. and Inf. Dir., New Delhi, India, 1994)
      Software has been developed in FORTRAN language using a personal computer for the determination of wave direction from time series measurements of heave, pitch and roll of an orbital following buoy. The method of digital ...
    • Directional spectrum of ocean waves from array measurements using phase/time/path difference methods 

      Fernandes, A.A.; Sarma, Y.V.B.; Menon, H.B. (Pergamon, 2000)
      Wave direction has for the first time been consistently, accurately and unambiguously evaluated from array measurements using the phase/time/path difference (PTPD) methods of Esteva in case of polygonal arrays and Borgman ...
    • Directional wave measurements off Navinal, Gulf of Kachchh, India 

      Vethamony, P.; KrishnaKumar, V.; Suryanarayana, A.; Antony, M.K.; Swamy, G.N. (Brazilian Water Resources Association, Brazil, 1995)
      Results of directional wave measurements carried out off Navinal, Gulf of Kachchh representing pre-monsoon and southwest monsoon wave conditions are presented. Maximum wave height encountered during pre-monsoon and southwest ...
    • Directional waverider buoy in Indian waters - Experiences of NIO 

      AshokKumar, K.; Diwan, S.G. (Allied, Chennai (India), 1996)
      Information on directional waves is extremely important in the design of harbour structures, such as breakwaters and jetties and to study the sediment transport pattern. Till recent days our country has been using waverider ...
    • Directional waves simulated for a severe cyclone and a typical monsoon season in the north Indian Ocean 

      Vethamony, P.; Kumar, B.P.; Sudheesh, K. (Maritime and Port Authority of Singapore, 2001)
      A second generation wave model has been used to simulate waves generated in the north Indian Ocean during (1) an exceptional severe cyclone which occurred in November 1977 and (2) a typical monsoon month of July 1987. The ...
    • Distribution of deep water wave power around the Indian coast based on ship observations 

      Chandramohan, P.; Nayak, B.U.; RamaRaju, V.S. (Tirunelveli: JCSONLINE, 1989)
      The ship reported swell data published in the Indian Daily Weather Reports for the period from 1968 to 1983 are complied for the seas around India which are divided into 10 grids each of 5 degrees latitude and 5 degrees ...
    • Estimation of wave directional spreading 

      Deo, M.C.; Gondane, D.S.; SanilKumar, V. (American Society of Civil Engineers, Virginia, USA, 2001)
      One of the useful measures of waves directional spreading at a given location is the directional spreading parameter. This paper presents a new approach to arrive at its characteristic value using the computational technique ...
    • Estimation of wave directional spreading in shallow water 

      SanilKumar, V.; Deo, M.C.; Anand, N.M.; Chandramohan, P. (Pergamon, 1999)
      Wave directional spreading in shallow water is described in this paper. Waves were measured for a period of two months using the Datawell directional waverider buoy at 15m water depth on the east coast of India in the Bay ...
    • Longshore transport based on directional waves along north Tamilnadu Coast, India 

      Jena, B.K.; Chandramohan, P.; SanilKumar, V. (Coastal Research Foundation, 2001)
      The accurate assessment of longshore sediment transport pattern along Nagapattinam-Poompuhar, Tamil Nadu, India coastline bears significance due to the historical erosion and its geographical location adjoining the sheltered ...
    • Real-time directional wave data collection 

      AshokKumar, K.; Diwan, S.G.; Pednekar, P.S. (Allied, Chennai, 2001)
      The wave measurements carried out along the east and west coasts off India at 13 locations using the directional waverider buoys are referred in this paper. The total number of buoy days are 4501 and out of which the data ...
    • Variations in wave direction estimated using first and second order Fourier coefficients 

      SanilKumar, V.; Anand, N.M. (Elsevier, 2004)
      In most design applications such as alignment of the berthing structure and breakwater alignment, it becomes necessary to determine the direction of design wave. There are two different approaches to determine wave direction. ...
    • Wave directional spectrum from array measurements 

      Fernandes, A.A.; Sarma, Y.V.B.; Menon, H.B. (Allied, Chennai (India), 1996)
      Using the method of Esteva (1976, 1977), whcih assumes that at the frequency band the waves approach from just a single "mean" wave direction, wave direction has been consistently, accurately and unambiguously evaluated ...
    • Wave directional spectrum from SAR imagery 

      Fernandes, A.A.; Sarma, Y.V.B.; Menon, H.B.; Vethamony, P. (Indian Society of Remote Sensing, Deharadun, 2000)
      Gaussian smoothed SAR image spectra have been evaluated from 512 x 512 pixel subscenes of image mode ERS-1 SAR scenes off Goa, Visakhapatnam, Paradeep and Portugal. The two recently acquired scenes off Portugal showed the ...
    • Wave directional spreading at shallow and intermediate depth 

      SanilKumar, V.; Deo, M.C.; Anand, N.M. (Cent. for Earth Sci. Stud., Cochin (India), 1997)
      Based on wave measurements carried out at shallow and intermediate water depths variation of directional spread parameter 's' is studied. A comparison of the mean wave directional and principal wave direction shows that ...
    • Wavelength of ocean waves and surf beat at duck from array measurements 

      Fernandes, A.A.; Menon, H.B.; Sarma, Y.V.B.; Jog, P.D.; Almeida, A.M. (American Society of Civil Engineers, Virginia, USA, 2001)
      Wavelength of ocean waves and surf beat (infra gravity waves) has for the first time been computed as a function of frequency from different combinations of non-collinear 3-gauge arrays. Data at the 15-gauge polygonal array ...