IITM Launches Urban Climate Observatory in Chennai Under Mission Mausam

Describing the facility as a landmark scientific infrastructure project, Dr M. Ravichandran revealed that the observatory houses approximately 15 sophisticated scientific instruments valued at over ₹60 crore.

In a major leap for India's weather forecasting and climate science capabilities, the Indian Institute of Tropical Meteorology (IITM), Pune, has established a cutting-edge Urban Testbed and Aerosol Observatory in Chennai under the ambitious Mission Mausam initiative of the Ministry of Earth Sciences (MoES).

The advanced atmospheric research facility, inaugurated at the SRM Institute of Science and Technology (SRMIST), Ramapuram, on May 6, 2026, is being hailed as India's first integrated urban weather and aerosol observatory capable of generating hyper-local, high-resolution atmospheric intelligence for one of the country's most climate-vulnerable metropolitan regions.

The inauguration was led by Secretary of the Ministry of Earth Sciences, Dr M. Ravichandran, in the presence of senior scientists, meteorological experts, climate researchers and academic leaders. A Memorandum of Understanding (MoU) was also signed between IITM and SRMIST, strengthening long-term collaboration in atmospheric and climate research.

₹60 Crore Advanced Observatory to Revolutionise Urban Weather Forecasting

Describing the facility as a landmark scientific infrastructure project, Dr M. Ravichandran revealed that the observatory houses approximately 15 sophisticated scientific instruments valued at over ₹60 crore.

The facility is capable of monitoring nearly 50 categories of atmospheric parameters, including:

• Weather systems

• Wind dynamics

• Aerosol particles

• Cloud formations

• Rain bands

• Temperature fluctuations

• Air quality patterns

• Sea breeze and land breeze interactions

Officials said the integrated data generated by the observatory will significantly improve:

• Weather forecasting accuracy

• Urban flood prediction

• Short-term climate monitoring

• Severe weather nowcasting

• Early warning systems

Dr Ravichandran noted that while Chennai already has distributed weather monitoring systems across the city, this is the first time India has established a fully integrated urban atmospheric observatory of this scale and technological sophistication.

"This comprehensive observatory is the first of its kind to be established in India," he said.

Mission Mausam Accelerates India's Climate and Weather Preparedness

The project forms part of Mission Mausam, launched by Prime Minister Narendra Modi in September 2024 as one of India's most ambitious scientific missions aimed at transforming weather forecasting, climate resilience and disaster preparedness.

Mission Mausam seeks to modernise India's observational infrastructure and strengthen:

• Monsoon prediction

• Severe weather forecasting

• Urban climate modelling

• Climate services

• Disaster early warning systems

The mission supports critical sectors including:

• Agriculture

• Water resources

• Aviation

• Disaster management

• Energy planning

Officials say the long-term goal is to make India a "Weather-Ready and Climate-Smart Nation."

Chennai Urban Testbed to Generate Hyper-Local Climate Intelligence

The Chennai Urban Testbed represents a major advancement in India's move toward hyper-local weather intelligence for rapidly urbanising cities vulnerable to extreme climate events.

The facility will include:

• Around 100 Automatic Weather Stations (AWS)

• Three additional X-band radars

• A phased-array radar for continuous monitoring of rain bands and convective systems

• Advanced aerosol monitoring systems

• Wind profiling instruments

• Cloud and precipitation profiling technologies

These systems will provide real-time atmospheric monitoring across:

• Urban Chennai

• Coastal transition zones

• Sea-land interaction regions

• Suburban expansion areas

Experts say the observatory's ultra-high-resolution data will be particularly valuable for forecasting:

• Urban flooding

• Intense rainfall events

• Cyclonic weather impacts

• Heat stress

• Air pollution dynamics

• Coastal weather transitions

Aerosol Research Key to Climate and Public Health Studies

A major scientific focus of the facility is aerosol observation and analysis.

Aerosols — microscopic particles suspended in the atmosphere — play a critical role in:

• Cloud formation

• Rainfall patterns

• Air quality

• Human health

• Climate warming and cooling processes

Dr Ravichandran explained that scientists will analyse:

• Aerosol particle size

• Particle movement speed

• Organic and inorganic composition

• Cloud-forming properties

• Sea breeze-land breeze transitions

This research will help scientists better understand how atmospheric particles influence weather systems and climate behaviour in coastal urban environments.

The observatory is also expected to provide vital short-term datasets linked to global warming trends in southern India, contributing to long-term climate change research.

Advanced Instruments to Monitor Atmosphere in Real Time

The facility incorporates several advanced atmospheric profiling technologies, including:

• Wind profilers

• Lidars

• Sodars

• Radiometers

• Aerosol sensors

• Cloud profiling systems

These instruments will enable scientists to monitor atmospheric dynamics continuously and in three dimensions.

The phased-array radar system, in particular, will allow continuous tracking of rapidly evolving storm systems approaching Chennai — a city historically vulnerable to devastating floods and cyclones.

India Strengthening Urban Climate Science Capabilities

Climate experts say the Chennai Urban Testbed reflects India's growing focus on urban climate resilience and advanced atmospheric modelling as extreme weather events become more frequent due to climate change.

Urban areas are increasingly vulnerable to:

• Flash floods

• Heatwaves

• Cyclonic storms

• Air pollution episodes

• Infrastructure stress caused by climate variability

Scientists believe integrated urban observatories such as the Chennai facility could become critical tools for:

• City-level climate adaptation planning

• Smart urban infrastructure development

• Disaster mitigation strategies

• Public health preparedness

• Coastal resilience planning

IITM and SRMIST Partnership Expands Scientific Collaboration

The MoU signed between IITM and SRMIST is expected to strengthen:

• Joint atmospheric research

• Student and faculty collaboration

• Climate modelling studies

• Advanced scientific training

• Innovation in environmental monitoring

The collaboration brings together one of India's premier climate research institutions and a major academic university to support long-term atmospheric science advancement.

Senior Scientific Leadership Participates in Launch

The inaugural ceremony was attended by several leading scientists and officials, including:

• Dr A. Suryachandra Rao, Director, IITM

• Dr Thara Prabhakaran, Project Director, IITM

• Dr R.S. Kankara, Director, National Centre for Coastal Research (NCCR)

• Dr Balaji Ramakrishnan, Director, National Institute of Ocean Technology (NIOT)

• Dr Sivananda Pai, Head, Chennai Meteorological Centre

• Dr R. Shivakumar, Chairman, SRMIST

Researchers and faculty members from multiple institutions also participated in the launch event.

Toward a Weather-Ready and Climate-Smart India

Officials said the Chennai Urban Testbed represents a transformational step in India's effort to build an integrated, data-driven climate intelligence ecosystem capable of supporting both immediate weather forecasting needs and long-term climate resilience planning.

As climate risks intensify globally, initiatives like Mission Mausam are expected to play a central role in strengthening India's scientific preparedness and protecting vulnerable urban populations through advanced forecasting and early warning technologies.