Enayam Port

Tamil Research Institute
RAPID TECHNO-ECONOMIC FEASIBILITY REPORT FOR
DEVELOPMENT OF COLACHEL PORT AT TAMILNADU
FINAL REPORT
a preliminary validation is done using satellite altimetry data. Next stage consists of the calibration of the
numerical results using satellite altimetry data.
Figure 91: Methodology diagram.
Wavewatch IIII (WWIII, Tolman, 2002) is a third generation wave model developed at NOAA-NCEP. WWIII
solves the spectral action density balance equation for wave number direction spectra.
More than 60 years of historical wind-generated offshore waves were performed for the last half century. The
wave hindcast outcomes provide hourly time series of significant wave height, mean wave period, peak
frequency and mean wave direction for all the grid points of the computed grid.
• Tides
GOT dataset provide hourly time series of astronomical tide for a selected period. It is generated using the
harmonic constants derived from the TPXO7.0 global tides model developed by Oregon State University
(http://volkov.oce.orst.edu/tides/global.html).
The database includes eight primary constants (M2, S2, N2, K2, K1, O1, P1, Q1), two long period
constituents (Mf, Mm), and 3 non-linear (M4, MS4, MN4) harmonic constituents, provided in a global grid of
1440 x 721 points, at 1/4 degree resolution full global grid. This information is used to reconstruct hourly time
series of tide in any location worldwide using the tool t_tide (Pawlowicz et al., 2002).
7.1.3. Reanalysis databases
This information has been extracted from two points with hourly temporal resolution:
Southwest India [Lon=76.50ºE, Lat=8.00ºN]
Southeast India [Lon=78.00ºE, Lat=8.00ºN]
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