Cyclone Management in
India:-
Tropical Cyclone (TC),
also known as ‘Cyclone’ is the term used globally to cover tropical weather
systems in which winds equal or exceed ‘gale force’ (minimum of 34 knot,
i.e., 62 kmph).
The frequency of
cyclones in the NIO (North Indian Ocean) Basin is bi-modal, which is specific
to this region.
•
Cyclones occur in the months of May–June
and October–November, with their primary peak in November and secondary peak in
May.
Thirteen coastal states
and Union Territories (UTs) in the country, encompassing 84 coastal districts,
are affected by tropical cyclones.
•
Four states (Tamil Nadu, Andhra
Pradesh, Orissa and West Bengal) and one UT (Puducherry) on the east coast
and
•
One state (Gujarat) on
the west coast are more vulnerable to hazards associated with cyclones.
About 8% of the area in
the country is prone to cyclone-related disasters. Tropical cyclones are
characterised by destructive winds, storm surges and very heavy rainfall,
each one having its own impact on human and livestock, and their activities.
Of these, storm
surge is responsible for 90% of the loss of lives associated with cyclone
disaster. Storm surge, which is a coastal phenomenon, is the inherent
catastrophic feature of cyclones the world over.
•
The degree of disaster potential depends
on the storm surge amplitude associated with the cyclone at the time of
landfall, characteristics of the coast, phases of the tides and vulnerability
of the area and community.
Cyclone Impact
Mitigation:-
Although it is not
possible to completely avoid natural disasters, their effects can be minimised
by taking some known long- and short term structural and non-structural
mitigation measures such as-
- • Developing proper early warning systems,
- • Creating awareness at all levels in the concerned communities,
- • Coastal afforestation,
- • Construction of shelters, embankments, dykes,
- • Coastal roads, bridges, canals, etc., through better preparedness, mitigation measures and improved response mechanisms.
National Cyclone Risk
Mitigation Project:-
The National Cyclone
Risk Mitigation Project (NCRMP), to be implemented with financial assistance
from the World Bank, is envisaged to have four major components:
- • Component A: Improvement of early warning dissemination system by strengthening the Last Mile Connectivity (LMC) of cyclone warnings and advisories.
- • Component B: Cyclone risk mitigation investments.
- • Component C: Technical assistance for hazard risk management and capacity building.
- • Component D: Project management and institutional support.
Institutional
Structure:-
- • The Cabinet Committee on Management of Natural Calamities (CCMNC):
- CCMNC has been constituted to oversee all aspects relating to the management of natural calamities, including assessment of the situation and identification of measures and programmes considered necessary to reduce its impact, monitor and suggest long-term measures for the prevention of such calamities formulate and recommend programmes for public awareness for building up society’s resilience to them.
- • At the district level, the District Disaster Management Authorities (DDMAs), which constitute the very bedrock of the entire DM apparatus, will be in charge of DM and will control and coordinate all line departments, i.e., police, fire services and any other form of support system as part of their response. In the planning stage, the Collector/District Magistrate/Deputy Commissioner will head all planning and preparedness exercises pertaining to DM.
Steps
to be taken:-
•
Establishing a state-of-the-art cyclone
EWS involving observations, predictions, warnings and customised
local-scale advice for decision-makers (national/state/district level) for managing
the impact of cyclones
•
Expanding the warning dissemination
outreach by using the services of Direct-To Home (DTH) transmission in remote
and rural areas (Panchayats) which cannot be otherwise covered, to
introduce weather channel and broadcast cyclone warnings from high-power
coastal radio stations including the use of satellite radio service like World
Space, Ham radios, community radio and VHF network
•
Establishing a comprehensive Cyclone
Disaster Management Information System (CDMIS) covering all phases of DM to
provide on-line services to the departments of Disaster Management in the
states
•
Structural safety of lifeline infrastructure
in coastal areas
•
Establishing a robust system of
locating multi-purpose cyclone shelters and cattle mounds
•
Ensuring cyclone resistant design standards
are incorporated in the rural/ urban housing schemes in coastal areas
•
Regulating infrastructure and development
activities in coastal zones
•
Mapping and delineation of coastal
wetlands, patches of mangroves and shelterbelts
•
Developing Integrated Coastal Zone
Management (ICZM) frameworks for addressing the sustainability and optimal
utilisation of coastal resources as also cyclone impact minimisation plans
•
Implementing coastal flood zoning,
flood plain development and flood inundation management
•
Evolving eco-system restoration plans
for degraded ecological zones
•
Developing integrated hazard mitigation
framework taking into account cyclone and associated storm surge, wind hazard,
rainfall-runoff, river flood