Legacy of India's Weather Pioneer Anna Mani

UPDATE - follow-up to Anna Mani: a star from the hills: Anna Modayil Mani was born in 1918 in Peermade, Travancore, to civil engineer and plantation owner Modayil Pothen Mani and his wife. She grew up in a prosperous Syrian Christian family as one of eight children, showing a strong love for reading rather than traditional hobbies.

Education And Research

At age seven, Anna was inspired by Mahatma Gandhi's call for self-reliance during his visit to Kerala and vowed to wear only khadi clothes for life. She completed her B.Sc. Honours in physics and chemistry from Presidency College, Madras, in 1939. She then started research at the Indian Institute of Science, Bengaluru, in 1940 under Nobel Laureate Sir C.V. Raman, focusing on the spectroscopy of diamonds and rubies. Although the lack of a master's degree stopped her from getting a PhD, she received a government scholarship in 1945 to study in England.

Meteorological Career

In England, she took an internship in meteorological instrumentation at Imperial College London. Returning to India in 1948, she joined the India Meteorological Department in Pune and helped the nation become self-reliant in weather equipment by producing recording rain gauges, thermographs, barometers, hygrographs, and anemographs. She became head of the instruments division in 1953, where her team designed and manufactured over a hundred weather devices. She also created the ozonesonde to measure atmospheric ozone and joined the International Ozone Commission.

Later Work And Retirement

She published key reference books including the Handbook of Solar Radiation Data for India and Solar Radiation over India, and conducted early wind speed surveys. She retired in 1976 as the Deputy Director-General of the IMD after nearly seven years in the role, later working at the Raman Research Institute and collaborating with the Indian Institute of Tropical Meteorology. She passed away in Thiruvananthapuram in 2001 after suffering a stroke.

Context

This historical look at Anna Mani highlights how early pioneers laid the technological groundwork for modern Indian meteorology and renewable energy sectors. Her work allowed India to manufacture its own scientific instruments rather than relying entirely on imports. Today, her foundational studies in solar and wind radiation continue to influence clean energy planning across the country.