Mercy Varghese

ORCID: 0000-0001-9921-1315
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About
Contact & Profiles
Research Areas
  • Atmospheric aerosols and clouds
  • Atmospheric chemistry and aerosols
  • Atmospheric Ozone and Climate
  • Aeolian processes and effects
  • Meteorological Phenomena and Simulations
  • Precipitation Measurement and Analysis
  • Astro and Planetary Science
  • Air Quality and Health Impacts
  • High-Voltage Power Transmission Systems
  • Climate variability and models
  • Energy Load and Power Forecasting
  • Wind and Air Flow Studies
  • Tropical and Extratropical Cyclones Research
  • Thermal Analysis in Power Transmission

Indian Institute of Tropical Meteorology
2015-2025

Savitribai Phule Pune University
2021-2025

Ministry of Earth Sciences
2020-2023

Indian Institute of Information Technology, Pune
2022

The objectives of the Winter Fog Experiment (WIFEX) over Indo-Gangetic Plains India are to develop better now-casting and forecasting winter fog on various time-and spatial scales.Maximum occurrence northwest is about 48 days (visibility <1000 m) per year, it occurs mostly during December-February time-period.The physical chemical characteristics fog, meteorological factors responsible for its genesis, sustenance, intensity dissipation poorly understood.Improved understanding above aspects...

10.18520/cs/v112/i04/767-784 article EN Current Science 2017-02-01

Abstract The demand for effective methods to augment precipitation over arid regions of India has been increasing the past several decades as changing climate brings warmer average temperatures. In fourth phase Cloud Aerosol Interaction and Precipitation Enhancement Experiment (CAIPEEX IV), a scientific investigation was conducted rain-shadow region Western Ghats mountains in India. primary objective investigate efficacy hygroscopic seeding convective clouds develop cloud protocol. CAIPEEX...

10.1175/bams-d-21-0291.1 article EN Bulletin of the American Meteorological Society 2023-10-23

This study reports on new particle formation (NPF) and characteristic features observed from a rural site falling in the rainshadow of Western Ghats peninsular India. A total 35 NPF events during August 2018 - January 2019 are classified analyzed here. The apparent rates ranged 0.2 to 10.0 cm–3 s–1, while growth nucleation mode particles 1.2 13.8 nm h–1. frequency occurrence was least (core monsoon) highest post-monsoon. local winds were calm southeasterly easterly (from urban centre)...

10.1080/02772248.2020.1789134 article EN Toxicological & Environmental Chemistry Reviews 2020-06-29

Abstract. Continuous aerosol and cloud condensation nuclei (CCN) measurements carried out at the ground observational facility situated in rain-shadow region of Indian subcontinent are illustrated. These observations were part Cloud Aerosol Interaction Precipitation Enhancement Experiment (CAIPEEX) during summer monsoon season (June to September) 2018. Observations classified as dry–continental (monsoon break) wet–marine active) according air mass history. CCN concentrations measured for a...

10.5194/acp-20-7307-2020 article EN cc-by Atmospheric chemistry and physics 2020-06-25

Abstract. Cloud seeding experiments for modifying clouds and precipitation have been underway nearly a century; yet practically all the attempts to link enhancement or suppression presence of materials within remain elusive. In 2019, Cloud–Aerosol Interaction Precipitation Enhancement Experiment (CAIPEEX) investigated residuals cloud hydrometeors in seeded non-seeded with an airborne mini aerosol mass spectrometer (mAMS). The mAMS was utilized conjunction counterflow virtual impactor (CVI)...

10.5194/amt-17-2387-2024 article EN cc-by Atmospheric measurement techniques 2024-04-19

The effects of the polar vortex in United States were initially felt Midwest, but these low temperatures quickly spread to nearly all portions Eastern and Texas Interconnections. Temperatures far colder than those normally experienced winter, resulting record winter peak electric demands with increased heating requirements. This is first time that data from NERC Generation Availability Data Systems (GADS) was used analyze generator availability during an event such as vortex.

10.1109/pesgm.2015.7285779 article EN 2015-07-01

Abstract. Continuous aerosol and Cloud Condensation Nuclei (CCN) measurements carried out at the ground observational facility situated in rain-shadow region of Indian sub-continent are illustrated. These observations were part Cloud-Aerosol Interaction Precipitation Enhancement EXperiment (CAIPEEX) during Summer Monsoon season (June to September) 2018. Observations classified as dry-continental (monsoon break) wet-marine active) according air mass history. CCN concentrations measured for a...

10.5194/acp-2020-45 article EN cc-by 2020-02-03

Abstract. Cloud seeding experiments for modifying cloud and precipitation have been underway nearly a century; yet practically all the attempts to link enhancement or suppression presence of materials remained inclusive. In 2019, Cloud-Aerosol Interaction Precipitation Enhancement Experiment (CAIPEEX) implemented novel method detect seeded clouds during its operations in Solapur, India. this experiment, residuals hydrometeors non-seeded were analyzed with an airborne mini-Aerosol Mass...

10.5194/amt-2023-171 preprint EN cc-by 2023-09-19
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