The National Meteorological Service of India: the India Meteorological Department at a hundred and fifty

Background

The India Meteorological Department (IMD) works under the Ministry of Earth Sciences and is the National Meteorological Service of India.
IMD was established in 1875, after a tropical cyclone struck Calcutta in 1864 and the monsoon failures of 1866 and 1871 showed the need for one central weather authority.
Its work covers meteorology, seismology and allied disciplines.
At the 150th Foundation Day celebrations the Government launched Mission Mausam, meant to make India a weather-ready and climate-smart nation, and released the IMD Vision-2047 document.
Mausamgram is IMD's interactive and dynamic meteogram, giving location specific weather forecast information.
IMD has replaced all Mercury Barometers with Digital Barometers at its Class I observatories, under the UNEP Minamata Convention on mercury, as mercury is hazardous to human health.