Vol1 | issue1 | Jan.2019

IITM eNewsletter

Edited Book on INTROSPECT - 2017


Extended Range Prediction System

Short Range Ensemble Prediction System


IITM Publication Highlights

Subsurface ocean biases in climate models and its implications in the simulated interannual variability: A case study for Indian Ocean

First attempt made for cautiously noting the role of inherent deep ocean biases in climate models and its impact in simulated frequency and amplitude of events such as ENSO and IODZMs. Analysis of the impacts of deep ocean biases in CMIP-5 models and its role in simulated interannual variability and large scale air-sea interaction dynamics have been performed. (Singh Shikha, Valsala V., Dynamics of Atmospheres and Oceans, December 2018)

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Air Quality Crisis: A Tale of Two Mega Cities, Delhi and Beijing

An objective evaluation of dangerous air pollutant PM2.5(particle size ≤ 2.5μm), for two of the world’s largest mega cities, Delhi and Beijing for the period 2011-2017, reveals that although annual averages for Delhi were lower than Beijing until 2014, a systematic declining trend for Beijing is visible which is indiscernible in Delhi. To inform action at subnational levels in India, this paper estimates the exposure to air pollution and its impact on deaths, disease burden, and life expectancy in every state of India in 2017. (Kalpana B., Sagnik Dey,. Beig G., et.al. The Lancet Planetary Health, Online, December 2018)

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Widespread fog over the Indo-Gangetic Plains and possible links to boreal winter teleconnections

Study suggest footprint of the Arctic Oscillation (AO) and conventional Eurasian (EU) circulation patterns linked to anticyclonic circulation aloft over the IGP region. The planetary-scale teleconnection pathways offer new dynamical insights into comprehending widespread IGP fog scenario, which have been hitherto perceived mostly from a regional context. (Hingmire D., Vellore R.K., Krishnan R.,et al Climate Dynamics, online,, September 2018)

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Spatial Patterns of Subseasonal Eddy Momentum and Heat Transport and its Probable Role in the Interannual Variability of Extratropical to Tropical Interaction during the Summer Monsoon Season

The current study uses a co-spectral analysis to study the horizontal and vertical structures of eddy heat and momentum transport during the monsoon season (June to September) over the Indian region. The co-spectral composite shows significant interannual variability of north-south eddy transport. Analysis suggesting vital role of global teleconnection patterns on eddy transports and its variability. Since the eddy transport is manifasted by the Rossby wave breaking through the subtropical Jetstream fluctuation. It is well known that such fluctuations can potentially impact the monsoonal low-frequency variability. Current study links such a modulation of eddy forcing by lowfrequency extratropical teleconnections. (Mahesh Kalshetti, Rajib Chattopadhyay, Phani M. Krishna and A.K. Sahai, IITM Research Report No. RR-144, December, 2018)

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New Publications

Aerosol and cloud droplet characteristics over Ganges Valley during break phase of monsoon: A case study

Varghese M., Prabha Thara V., Murugavel P., Anu A. S., Resmi E. A., Dinesh G., Jaya Rao Y., Nagare B., Safai P. D., Nair Sathy, K. Nandakumar, Vishnu R., Bhavani Kumar Y., , Atmospheric Research, 220, May 2019, DOI:10.1016/j.atmosres.2019.01.013, 125-140,

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Evidence of precedent wind role on controlling PM1 wet scavenging of aerosols during monsoon rain events

Yang L., Pandithurai G., Chate D.M., Rao P.S.P., Waghmare V., Iyer U., Atmospheric Environment, 201, February 2019, DOI: 10.1016/j.atmosenv.2018.12.041,265-277

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Operational Tracking Method for the MJO Using Extended Empirical Orthogonal Functions

Dey Avijit, Chattopadhyay R., Sahai A.K., Mandal R., Joseph S., Phani R., Abhilash S., , Pure and Applied Geophysics, online, December 2018, DOI:10.1007/s00024-018-2066-8, 1-21,

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SAFAR High resolution Emission Inventory of Mega City Delhi-2018

Beig G., Sahu S.K., Dhote M., Tikle S., Mangaraj P., Mandal A., Dhole S., et al, SAFAR-High resolution emission inventory of mega city Delhi-2018, Special Scientific Report, SAFAR-Delhi-2018-A, IITM Pune, Ministry of Earth Sciences (Govt. of India), 2018

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IITM Events

Special Weather Services for Kumbh Mela 2019

Dr Harsh Vardhan, the Hon’ble Minister of Science and Technology, Earth Sciences and Environment and Forests and Climate Change inaugurated the special weather services for Kumbh Mela on 14th January 2019.

To provide information of the prevailing weather and forecasts for next 3 days, the Ministry of Earth Sciences (MoES) has launched the special weather services for the benefit of people visiting Prayagraj during KumbhMela.


India Radar Meteorology Conference iRAD2019 at IITM

The 3rd conference on India Radar Meteorology (iRAD2019), an initiative of the Ministry of Earth Sciences (MoES), Govt. of India was held at IITM during 9-12 January 2019. Jointly organized by IITM and IMD to promote radar meteorology in India and to provide a platform for an interaction between academia, research institutes and industry. Inaugurated by Hon'ble Chief Guest, Dr. M. Rajeevan, Secretary, MoES, Guest of Honour, Dr. K. J. Ramesh, DGM, IMD, Prof. Ravi S. Nanjundiah, Director, IITM, Prof. V. Chandrasekar, Colorado State University, USA, Convener, iRAD2019, Dr G. Pandithurai, IITM and Co-Convener, iRAD2019, Dr D. Pradhan, IMD on 10.1.2019.

iRAD2019 Website Photo Gallery

Sci. & Training Workshop: Climate Change over High Mountains of Asia (8-12 October 2018)

A science and training workshop on the theme "Climate Change over the High Mountains of Asia (HMA)" was held at IITM and was jointly organized by the Centre for Climate Change Research (CCCR), IITM, the Ministry of Earth Sciences (MoES), New Delhi, Divecha Centre for Climate Change (DCCC), Indian Institute of Science, Bengaluru and the Monsoon Asia Integrated Research for Sustainability - Future Earth (MAIRS-FE) at DCCC. The overarching goals of this workshop are envisaged towards integrating the regional climate downscaling activities, facilitating cross-fertilization of scientific expertise and engaging the community of Asian scientists for further capacity building pertaining to the HMA.

CCHMA website Photo Gallery

57th Foundation Day Celebration at IITM 17 November 2018

IITM celebrated 57th Foundation Day on 17th November 2018. Dr. Vijay P. Bhatkar, Chancellor, Nalanda University and Guest of Honor, Dr.Satish R. Shetye, NIO Director (Retd.) and Former Vice Chancellor, Goa University is the Chief Guest and Guest of Honor respectively. On this occasion, various awards were presented to the scientists, students, scientific, technical, Administrative support and other staff of the Institute.

Details Photo Gallery