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Coastal Engineering: Theory and Practice
3.10.3 Effect of sédimentation during extreme events
In the wake of an extreme event such as storm, cyclone or hurricane, the
usual trend prévalent at a given site varies drastically. As a case study, the
aftermath of Thane cyclone is discussed briefly.
Influence of Thane and Nilam cyclone characteristics on
the wave climate
The influence in the wave climate due to change in the characteristics of
cyclone is studied in detail. An in-depth analysis on this parameter has
been carried out by considering two cyclones, Thane and Nilam, which has
made the landfall near to the Chennai coast in the consecutive years 2011
and 2012, respectively.
Cyclone “Thane”
It has already been discussed about the field measured and simulated wave
characteristics of Thane cyclone in the earlier section. However, in this parametric study, the directional aspects are compared for the two cyclones.
The cyclone Thane can be considered as the strongest tropical cyclone
over the past one decade. The cyclone had started gaining momentum
from 26 December 2011. When it was centred at 9.5°N, 87.5°E, it had
obtained further momentum by moving towards north-westwards. During
its strongest State, it had centred at 12°N, 80.6°E during 1800 hours on
29 December 2011, with a maximum sustainable wind speed of 150 km/hr,
prior to Crossing the coast at Puducherry (11.8°N, 79.9°E) at 0730 hours
on 30 December 2011.
Cyclone “Nilam”
The Nilam cyclone had started as a dépréssion from the forenoon of 28 October 2012 when it was centred at 9.5°N, 86.0°E. It obtained momentum by
moving towards western and north-western direction. It was at its strongest
State when centred around 11.0°N, 81.0°E, during the forenoon of 31 October 2012, with a maximum sustainable wind speed of around 80 km/hr,
prior to Crossing the east coast of India near Mahabalipuram (12°37'36.84"
and 80° 11'33.72"E) at around 1630 hours on the same day.
The location of eye of the cyclone, central pressure drop and maximum
sustained wind during the Thane and Nilam cyclones were obtained from
IMD which are presented in Tables 3.3 and 3.4, respectively.
Coastal Engineering: Theory and Practice
3.10.3 Effect of sédimentation during extreme events
In the wake of an extreme event such as storm, cyclone or hurricane, the
usual trend prévalent at a given site varies drastically. As a case study, the
aftermath of Thane cyclone is discussed briefly.
Influence of Thane and Nilam cyclone characteristics on
the wave climate
The influence in the wave climate due to change in the characteristics of
cyclone is studied in detail. An in-depth analysis on this parameter has
been carried out by considering two cyclones, Thane and Nilam, which has
made the landfall near to the Chennai coast in the consecutive years 2011
and 2012, respectively.
Cyclone “Thane”
It has already been discussed about the field measured and simulated wave
characteristics of Thane cyclone in the earlier section. However, in this parametric study, the directional aspects are compared for the two cyclones.
The cyclone Thane can be considered as the strongest tropical cyclone
over the past one decade. The cyclone had started gaining momentum
from 26 December 2011. When it was centred at 9.5°N, 87.5°E, it had
obtained further momentum by moving towards north-westwards. During
its strongest State, it had centred at 12°N, 80.6°E during 1800 hours on
29 December 2011, with a maximum sustainable wind speed of 150 km/hr,
prior to Crossing the coast at Puducherry (11.8°N, 79.9°E) at 0730 hours
on 30 December 2011.
Cyclone “Nilam”
The Nilam cyclone had started as a dépréssion from the forenoon of 28 October 2012 when it was centred at 9.5°N, 86.0°E. It obtained momentum by
moving towards western and north-western direction. It was at its strongest
State when centred around 11.0°N, 81.0°E, during the forenoon of 31 October 2012, with a maximum sustainable wind speed of around 80 km/hr,
prior to Crossing the east coast of India near Mahabalipuram (12°37'36.84"
and 80° 11'33.72"E) at around 1630 hours on the same day.
The location of eye of the cyclone, central pressure drop and maximum
sustained wind during the Thane and Nilam cyclones were obtained from
IMD which are presented in Tables 3.3 and 3.4, respectively.