Meteorological Office (India)

Meteorological Office (India)
Name	Meteorological Office (India)
Formation	18th century (precursors), 1875 (formal institutions)
Headquarters	New Delhi
Region served	India
Parent organisation	Ministry of Earth Sciences

Meteorological Office (India) is the national meteorological agency responsible for weather forecasting, climate monitoring, and atmospheric research across the Indian subcontinent and surrounding maritime zones. It provides observational networks, numerical model output, and advisory services to civil aviation, agriculture, maritime sectors, and disaster management authorities. The office interfaces with international bodies to exchange data and coordinate responses to transboundary phenomena such as cyclones, monsoon variability, and El Niño–Southern Oscillation.

History

The agency traces institutional origins to the 19th century colonial-era observatories and the establishment of the Indian Meteorological Department (IMD) in 1875, which followed scientific traditions associated with the Royal Meteorological Society and instrumentation work influenced by the Royal Observatory, Greenwich and the Royal Society. Early services supported the Indian Railways and the East India Company's administrative requirements, while landmark events such as the Great Bengal Famine of 1876–1878 and cyclonic disasters prompted expansion of synoptic networks. In the 20th century the office modernised through links with the Indian Independence Movement era institutions, post-independence development under the Ministry of Earth Sciences and collaborations with the Indian Space Research Organisation for satellite meteorology. Technological milestones included adoption of radar driven by requirements after the 1943 Bengal cyclone, integration of Doppler radar networks, and implementation of global model access following India's accession to the World Meteorological Organization.

Organisation and Structure

The organisation is structured into regional, national, and specialised centres including the Regional Meteorological Centre, Mumbai and the Regional Meteorological Centre, Chennai alongside the national capital headquarters in New Delhi. Administrative oversight is by the Ministry of Earth Sciences with technical links to the Indian Institute of Tropical Meteorology and operational coordination with the Indian Navy, Indian Air Force, Ministry of Shipping, and civil aviation regulator Directorate General of Civil Aviation (India). Research and training arms maintain partnerships with the Indian Institutes of Technology, Jawaharlal Nehru University, Indian Agricultural Research Institute, and the National Disaster Management Authority. The organisational chart includes divisions for aviation meteorology, marine meteorology, seismology liaison, radar operations, and climate services, with regional forecasting units embedded within state capitals such as Kolkata, Bengaluru, Hyderabad, Ahmedabad, and Kochi.

Functions and Services

Primary functions encompass synoptic and mesoscale forecasting for events such as monsoon onset, tropical cyclones in the Bay of Bengal and the Arabian Sea, heat waves affecting Rajasthan and Punjab, and cold wave advisories for the Himalayas and Srinagar. Services include aviation meteorological briefings for airports like Chhatrapati Shivaji Maharaj International Airport and Indira Gandhi International Airport, maritime warnings for ports including Mumbai Port and Kolkata Port Trust, agricultural advisories utilized by the National Bank for Agriculture and Rural Development, and climatic normals supporting the Indian Space Research Organisation satellite missions. Special products include urban weather alerts for metropolitan areas like Mumbai and Delhi, river basin rainfall monitoring for the Brahmaputra and Ganges, and pollen and air-quality bulletins coordinated with the Central Pollution Control Board.

Observation and Data Systems

The observational backbone comprises a dense network of surface observatories, upper-air radiosonde stations, automated weather stations in collaboration with the Indian Oil Corporation, and a Doppler Weather Radar network co-located with airports and army establishments. Satellite inputs derive from platforms such as INSAT series and joint datasets from the European Organisation for the Exploitation of Meteorological Satellites and National Aeronautics and Space Administration. Oceanographic coupling uses buoy arrays and data from Indian National Centre for Ocean Information Services for sea-surface temperature and wave guidance. Hydrometeorological data exchange occurs through WMO GTS links with global centres like ECMWF, NOAA, and Met Office (United Kingdom). Data assimilation systems ingest observations for numerical weather prediction models supported by high-performance computing centres at national supercomputing facilities.

Forecasting and Research

Numerical forecasting relies on in-house global and regional models, ensemble prediction systems, and downscaling experiments conducted with partners such as the Indian Institute of Tropical Meteorology and Indian Institute of Science. Research agendas target Indian monsoon dynamics, tropical cyclone genesis in the Bay of Bengal, and subseasonal-to-seasonal prediction linked to El Niño–Southern Oscillation studies and Indian Ocean Dipole research. The office publishes peer-reviewed outputs in collaboration with institutions such as CSIR, National Centre for Coastal Research, and international projects like the Tropical Cyclone Programme (WMO). Capacity-building includes numerical modelling workshops with the World Meteorological Organization and internship programmes with universities including the University of Delhi.

Role in Disaster Management and Public Safety

The office issues warnings and special advisories during extreme events informing agencies such as the National Disaster Management Authority and state disaster response forces. Tropical cyclone advisories coordinate with the Indian Navy and coastal state administrations for evacuations in districts of Odisha, Andhra Pradesh, and Tamil Nadu. Flash flood forecasting supports the Central Water Commission for dam operations on rivers including the Narmada and Godavari. Public safety messaging integrates with media outlets like Press Information Bureau (India) and broadcasters including Doordarshan and All India Radio to disseminate heatwave, coldwave, and air-quality alerts.

International Collaboration and Agreements

The office maintains bilateral and multilateral agreements with agencies such as NOAA, ECMWF, Met Office (United Kingdom), Japan Meteorological Agency, and regional initiatives under the World Meteorological Organization framework. It participates in programmes like the Global Framework for Climate Services and coordinates data-sharing for forecasting of transboundary hazards including Himalayan glacier monitoring under collaborations with China Meteorological Administration and Nepal Rastra Bank scientific bodies. Joint exercises and research missions include tropical cyclone field campaigns with the Indian Space Research Organisation and data-exchange protocols with International Civil Aviation Organization for aeronautical meteorology.

Category:Meteorology in India