Now showing items 1-20 of 25

    • 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 ...
    • 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 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 ...
    • Estimation of wind speed and wave height during cyclones 

      SanilKumar, V.; Mandal, S.; AshokKumar, K. (Elsevier, 2003)
      Wave and wind characteristics based on the cyclones, in the vicinity of the Nagapattinam coastline (east coast of India) were estimated. In all, 11 cyclones have crossed near the study region during 1960-1996. For the four ...
    • Field measurement on longshore current variation between Ratnagiri and Mangalore, west coast of India 

      Chandramohan, P.; Nayak, B.U.; Anand, N.M.; SanilKumar, V. (CWPRS, Pune, 1992)
      The daily measurements on longshore current velocity and direction were carried out at selected 12 stations along the coast between Ratnagiri and Mangalore, India. The directional wave data measured at Karwar were used to ...
    • Longshore currents and sediment trnsport along Kannirajapuram Coast, Tamilnadu, India 

      SanilKumar, V.; Chandramohan, P.; AshokKumar, K.; Gowthaman, R.; Pednekar, P.S. (Coastal Research Foundation, 2000)
      The objective of the study was to estimate longshore current and sediment transport from measured wave data and from the observations on the littoral environment. A directional wave rider buoy was deployed at 12m water ...
    • Modeling of sediment transport along Mangalore coast using mike 21 

      Babu, K.S.; Dwarakish, G.S.; Jayakumar, S. (Allied, India, 2003)
      The objective of the present study is to understand the sediment transport along Mangalore Coast and to quantify the sediment transport rates. The data used in the present study includes Wave, Wind, Tide, Naval Hydrographic ...
    • Multipeakedness and groupiness of shallow water waves along Indian coast 

      SanilKumar, V.; Anand, N.M.; AshokKumar, K.; Mandal, S. (Coastal Education and Reserch Foundation, 2003)
      Based on one year wave data collected at 4 locations along the Indian coast, the frequency of occurrence of double-peaked spectra was estimated. It was found that 40% of the data analysed was single-peaked. The double ...
    • Nearshore processes along Tikkavanipalem Beach, Visakhapatnam, India 

      SanilKumar, V.; AshokKumar, K.; Raju, N.S.N. (Coastal Research Foundation, 2001)
      Directional wave data collected at 12 m water depth, at 1 km distance off Tikkavanipalem, Andhra Pradesh, India from December 1997 to November 1998, was used to estimate the longshore currents and longshore sediment transport ...
    • On the dominance of pre-existing swells over wind seas along the west coast of India 

      Aboobacker, V.M.; Rashmi, R.; Vethamony, P.; Menon, H.B. (Elsevier, 2011)
      Wave data collected off Goa along the west coast of India during February 1996–May 1997 has been subjected to spectral analysis, and swell and wind sea parameters have been estimated by separation frequency method. Dominance ...
    • Recurrent networks for wave forecasting 

      Mandal, S.; Prabaharan, N. (IIT, Bombay, 2002)
      The tremendous increase in offshore operational activities demands improved wave forecasting techniques. With the knowledge of accurate wave conditions, it is possible to carry out the marine activities such as offshore ...
    • Seasonal wave characteristics of the Arabian Sea and the Bay of Bengal 

      Vijayarajan, P.K.; Varkey, M.J.; Joseph, M.X. (Marine Biological Association of India, 1976)
      Wave data reported in the Indian Daily Weather Reports for the period 1960-64 have been used to evaluate seasonal wave characteristics for each 2-degree square areas of the Arabian Sea and the Bay of Bengal. These results ...
    • Spectral characteristics of the nearshore waves off Paradip, India during monsoon and extreme events 

      Aboobacker, V.M.; Vethamony, P.; Sudheesh, K.; Rupali, S.P. (Springer, 2009)
      Spectral and statistical wave parameters obtained from the measured time series wave data off Paradip, east coast of India during May 1996-January 1997 were analysed along with MIKE 21 spectral wave model (SW) results. ...
    • Study of the directional spectrum of ocean waves using array, buoy and radar measurements 

      Fernandes, A.A. (1999)
      Phase/time/path difference (PTPD) methods of Esteva [1977] and Borgman [1974] with two modifications, viz., true phase and coherence proposed in this thesis, have for the first time been successfully used for computing ...
    • Surface layer conditions of the atmosphere over western Bay of Bengal during Monex 

      Anto, A.F.; Rao, L.V.G.; Somayajulu, Y.K. (CSIR-NISCAIR, 1982)
      Based on surface meteorological data and wave data collected from 2 stations in the western Bay of Bengal in July 1979, surface layer (SL) conditions of the atmosphere for different situations of surface circulations and ...
    • The 26 December 2004 Sumatra tsunami recorded on the coast of West Africa 

      Joseph, A.; Odametey, J.T.; Nkebi, E.K.; Pereira, A.; Desai, R.G.P.; Mehra, P.; Rabinovich, A.B.; Vijaykumar, K.; Prabhudesai, S.P.; Woodworth, P. (National Inquiry Services Centre, 2006)
      Analysis of sea-level data obtained from the Atlantic Global Sea Level Observing System (GLOSS) sea-level station at Takoradi, Ghana, West Africa, clearly reveals a tsunami signal associated with the M sub(w) = 9.3 Sumatra ...
    • Variations in nearshore processes along Nagapattinam coast, India 

      SanilKumar, V.; Anand, N.M.; Gowthaman, R. (Indian Academy of Sciences, 2002)
      Directional wave data collected at 10 m water depth, at 2 km distance off Nagore from March 1998 to February 1999, were used to estimate the longshore currents and longshore sediment transport rate considering the sea and ...
    • 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 characteristics in the sea around the Andaman and Nicobar Islands 

      Gouveia, A.D.; RamaRaju, D.V.; Murty, C.S. (CSIR-NISCAIR, 1981)
      Wave data were collected during 51 and 52 cruises (Feb. 1979) and 66 and 67 cruises (Jan. 1980) of R.V. Gaveshani using a shipborne wave recorder. Some wave records were also obtained along the 5 degrees 30'N lat. from ...