Leveraging Drone Technology for Post-Cyclone Recovery



Natural disasters, such as cyclones, leave behind a trail of destruction that often takes months, if not years, to fully assess and recover from. Cyclone Amphan, a super cyclonic storm, wreaked havoc on Kolkata, including the Agri Horticultural Society of India's (AHSI) Horticultural Park in Alipore. The devastation required a comprehensive assessment to understand the extent of damage and plan recovery efforts. At Kesowa, we harness the power of drone technology to provide accurate and efficient solutions in such critical times. Our collaboration with AHSI is a prime example of how advanced mapping technologies can aid in disaster recovery and urban management.

Tree Count of Horticultural Park at Alipore Post Cyclone Amphan

Cyclone Amphan struck with unprecedented force, leaving extensive damage in its wake. The Horticultural Park, a key green space in Kolkata managed by AHSI, was significantly affected. AHSI needed a precise estimate of the damaged trees and the overall condition of the park to plan restoration and maintenance activities. Traditional methods of manual counting and surveying were impractical given the scale of damage and the urgency of the situation.

Kesowa stepped in to provide a cutting-edge solution. On receiving the request from AHSI, we deployed drones equipped with high-resolution cameras and advanced sensors to conduct an orthographic survey of the park. The drones captured detailed images of the entire area, allowing us to create an accurate and comprehensive map of the park post-cyclone.

The orthographic map served as a foundational tool for our analysis. Utilizing in-house developed AI code, our team processed the data to perform an automated tree count. This AI-driven approach ensured accuracy and efficiency, significantly reducing the time required for assessment. The AI identified and counted trees, differentiating between healthy and damaged ones, and provided a detailed report on the park’s condition.


The results of our survey were promptly shared with AHSI and other stakeholders, enabling them to take immediate action. The detailed tree count and damage assessment helped AHSI prioritize areas for restoration, allocate resources effectively, and plan long-term recovery strategies.

This project benefited the Agri Horticultural Society of India and the local community by providing a clear and actionable understanding of the park’s condition. The accurate data facilitated quicker recovery efforts, helping restore the park to its former glory and ensuring it remained a vital green space for the residents of Kolkata. Kesowa's innovative use of drone technology and AI in this project highlights our commitment to supporting communities in times of need and contributing to sustainable urban management.

Blog post written by Shwejal & Vidushi, Kesowa Summer Research Interns 2024

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