Cyclones | ENVIRONMENTAL GEOGRAPHY Optional for UPSC

Main content is covered in climatology part. Here, we are discussing disaster related aspects.

Introduction

Cyclones are large-scale atmospheric systems characterized by rotating winds and low-pressure centers.

Cyclones typically form over warm ocean waters, where the combination of moisture, heat, and wind conditions promotes their development.

Thinkers' Perspectives on Cyclones:

1. Environmental Determinism:

• Natural factors shape human behavior and societal development.
• Cyclones are seen as consequences of geographical factors.
• Example: Building cyclone shelters and implementing early warning systems.

2. Possibilism:

• Human agency and innovation shape the relationship between society and the environment.
• Cyclones can be mitigated through improved infrastructure and disaster preparedness.
• Example: Construction of resilient infrastructure like storm surge barriers.

3. Radical Perspective:

• Power dynamics and social inequalities influence the impact of cyclones on different social groups.
• Calls for equitable policies and practices to address social injustices.
• Example: Advocating for inclusive disaster management strategies for marginalized groups.

4. Marxist Perspective:

• Analyzes cyclones within capitalist modes of production and social relations.
• Capitalist systems contribute to vulnerability through inequality and inadequate responses.
• Example: Addressing poverty, inequality, and exploitation to reduce cyclone impacts.

5. Humanism:

• Individual experiences and values are significant in understanding the human-environment relationship.
• Involves local communities and their aspirations in decision-making processes.
• Example: Qualitative research on cyclone survivors' coping strategies.

6. Spatial Analysis:

• Examines spatial patterns and relationships between cyclones, settlements, and physical geography.
• Identifies areas of high vulnerability and devises targeted interventions.
• Example: Creating vulnerability maps to allocate resources for risk reduction.

7. Welfarism:

• Focuses on the well-being and quality of life of cyclone-affected individuals and communities.
• Prioritizes access to essential services, healthcare, education, and livelihood support.
• Example: Evaluating post-cyclone rehabilitation programs for affected communities.

Disaster Management of Cyclone Disaster

A. Pre-disaster stage

1. Preparedness (P): 

• This stage involves activities and measures taken before the cyclone disaster occurs to minimize its impact and ensure effective response. It includes:
• Early warning systems: Developing and implementing systems to detect and forecast cyclones in advance, enabling timely dissemination of warnings to vulnerable communities.
• Evacuation planning: Identifying high-risk areas and establishing evacuation routes and shelters. Conducting drills and awareness campaigns to educate people about evacuation procedures.
• Stockpiling essential supplies: Preparing and maintaining stockpiles of food, water, medical supplies, and other necessary items in strategic locations.
• Establishing emergency response teams: Forming teams comprising trained personnel, such as search and rescue teams, medical teams, and relief distribution teams.
• Strengthening infrastructure: Ensuring critical infrastructure, such as buildings, bridges, and communication networks, are built or retrofitted to withstand cyclonic forces.

2. Mitigation (M): 

• This stage focuses on reducing the vulnerability of communities and infrastructure to cyclones. Mitigation measures aim to lessen the impact and severity of cyclone disasters. Key aspects include:
• Land-use planning and zoning: Restricting construction and development in high-risk areas prone to cyclones and storm surges. Implementing zoning regulations to promote safer settlements away from vulnerable coastal regions.
• Coastal ecosystem restoration: Preserving and restoring coastal ecosystems, such as mangroves and coral reefs, which act as natural barriers against storm surges and provide protection to coastal communities.
• Retrofitting structures: Upgrading existing buildings and infrastructure to make them more resilient to cyclones. This may involve reinforcing roofs, walls, and foundations, and incorporating wind-resistant designs.
• Public awareness and education: Conducting campaigns to educate the public about cyclone risks, preparedness measures, and the importance of early evacuation. 

3. Prevention (P): 

• This stage focuses on taking proactive measures to prevent or reduce the likelihood of cyclones and associated hazards. While cyclones themselves cannot be prevented, prevention measures can address underlying factors contributing to their intensity or occurrence. Some prevention strategies include:
• Climate change adaptation: Implementing measures to adapt to the effects of climate change, such as sea-level rise, which can exacerbate the impact of cyclones.
• Infrastructure development: Constructing or enhancing infrastructure systems, such as drainage systems, flood control measures, and seawalls, to minimize flooding and coastal erosion during cyclones.
• Research and development: Investing in scientific research to improve understanding of cyclone dynamics, track changes in their behavior, and develop innovative technologies and strategies for cyclone risk reduction.

B. Disaster stage

1. Rescue operation (R): 

• This stage involves immediate response actions during and immediately after a cyclone disaster. The focus is on saving lives, providing emergency medical assistance, and evacuating affected individuals to safer locations. Key actions include:
• Search and rescue operations: Deploying trained personnel to locate and rescue survivors trapped in collapsed buildings, flooded areas, or other hazardous situations.
• Emergency medical care: Establishing temporary medical facilities and triage centers to provide first aid and treat injured individuals.
• Evacuation coordination: Organizing and facilitating the evacuation of affected populations to designated shelters or safer areas, ensuring the availability of transportation and logistical support.

C. Post-disaster stage

1. Relief (R): 

• This stage focuses on providing immediate assistance to meet the basic needs of affected individuals and communities. The aim is to alleviate suffering and restore a minimum level of normalcy. Key actions include:
• Emergency shelter and food distribution: Setting up temporary shelters for displaced individuals and providing them with essential supplies, including food, water, and hygiene kits.
• Emergency healthcare: Ensuring access to medical care, vaccinations, and sanitation facilities in temporary shelters or medical camps.
• Psychosocial support: Offering counseling and mental health support to individuals traumatized by the cyclone and its aftermath.

2. Recovery (R): 

• This stage involves restoring essential services and infrastructure to enable communities to resume normal activities. Key actions include:
• Infrastructure restoration: Repairing damaged buildings, roads, bridges, power lines, and communication networks to restore basic services and connectivity.
• Livelihood support: Assisting affected individuals and businesses in recovering their livelihoods by providing financial support, vocational training, and access to markets and employment opportunities.
• School and education recovery: Rehabilitating damaged schools and ensuring access to education for children affected by the cyclone.

3. Rehabilitation (R): 

• This stage focuses on long-term recovery and building resilience to future cyclone disasters. It involves:
• Permanent housing reconstruction: Supporting the reconstruction or relocation of houses in safer areas, incorporating cyclone-resistant designs and materials.
• Community resilience building: Promoting community-led initiatives, such as early warning systems, local disaster response teams, and community-based disaster risk reduction programs.
• Policy and governance reforms: Reviewing and updating policies, regulations, and building codes to ensure they incorporate lessons learned from the cyclone disaster and promote resilience in future development.

NDMA Guidelines for Cyclone Management

A. Institutional Measures:

• Establishing state-of-the-art cyclone Early Warning System (EWS) that incorporates observations, predictions, warnings, and customized local-scale advice.
• Aircraft Probing of Cyclone (APC) Facility: It utilizes manned aircraft and high altitude Unmanned Aerial Vehicles (UAVs) to gather invaluable data about cyclone structure and movement.
• Establishing the National Disaster Communication Infrastructure (NDCI) at various levels, including the NDMA/MHA, State Disaster Management Authorities (SDMAs), and District Disaster Management Authorities (DDMAs) of the 84 vulnerable coastal districts. 
• Expanding Warning Dissemination Outreach: utilizing Direct-To-Home (DTH) transmission in remote and rural areas, high-power coastal radio stations, and leveraging satellite radio services, community radios etc.

B. Other Measures:

• Ensuring the structural safety of lifeline infrastructure in coastal areas.
• Identifying and establishing multi-purpose cyclone shelters and cattle mounds.
• Incorporating cyclone-resistant design standards in housing schemes.
• Developing all-weather road links and maintaining drainage systems.
• Constructing saline embankments to prevent storm surge.
• Encouraging public-private partnerships for cyclone management.
• Mapping coastal wetlands, mangroves, and bio-shield areas.
• Regulating infrastructure and development activities in coastal zones.
• Monitoring water quality and implementing remedial measures.
• Developing Integrated Coastal Zone Management (ICZM) frameworks.
• Implementing eco-system restoration plans.
• Managing delta water and freshwater recharge.
• Promoting coastal bio-shields preservation and restoration.
• Establishing flood zoning and inundation management plans.
• Addressing groundwater development in coastal urban areas.
• Developing Aquaculture Parks in potential zones.
• Establishing an ecosystem monitoring network to study climate change impacts.
• Creating hazard mitigation frameworks using GIS models for vulnerability assessment.
• Coordinating efforts for digital spatial data generation.