[HTML][HTML] Very high particulate pollution over northwest India captured by a high-density in situ sensor network

T Singh, Y Matsumi, T Nakayama, S Hayashida… - Scientific Reports, 2023 - nature.com
Exposure to particulate matter less than 2.5 µm in diameter (PM2. 5) is a cause of concern in
cities and major emission regions of northern India. An intensive field campaign involving …

[HTML][HTML] Performance of high resolution (400 m) PM2.5 forecast over Delhi

C Jena, SD Ghude, R Kumar, S Debnath… - Scientific reports, 2021 - nature.com
This study reports a very high-resolution (400 m grid-spacing) operational air quality
forecasting system developed to alert residents of Delhi and the National Capital Region …

[HTML][HTML] Machine learning algorithm for estimating surface PM2. 5 in Thailand

P Gupta, S Zhan, V Mishra, A Aekakkararungroj… - Aerosol and Air Quality …, 2021 - aaqr.org
We have used NASA's Modern-Era Retrospective analysis for Research and Applications,
Version 2 (MERRA2) reanalysis data of aerosols and meteorology into a machine learning …

Enhancing accuracy of air quality and temperature forecasts during paddy crop residue burning season in Delhi via chemical data assimilation

R Kumar, SD Ghude, M Biswas, C Jena… - Journal of …, 2020 - Wiley Online Library
This paper examines the accuracy of Weather Research and Forecasting model coupled
with Chemistry (WRF‐Chem) generated 72 hr fine particulate matter (PM2. 5) forecasts in …

Probing into the wintertime meteorology and particulate matter (PM2. 5 and PM10) forecast over Delhi

A Sengupta, G Govardhan, S Debnath, P Yadav… - Atmospheric Pollution …, 2022 - Elsevier
Abstract The Indian Institute of Tropical Meteorology (IITM), in partnership with the National
Center for Atmospheric Research (NCAR), has developed a high resolution (400 m) air …

Forecasting of an unusual dust event over western India by the Air Quality Early Warning System

G Kalita, PP Yadav, R Jat, G Govardhan… - Atmospheric …, 2023 - Elsevier
This study presents the successful implementation of an operational Air Quality Early
Warning System (AQEWS) in forecasting an unprecedented dust storm event that occurred …

Evaluating the sensitivity of fine particulate matter (PM2. 5) simulations to chemical mechanism in WRF-Chem over Delhi

R Jat, C Jena, PP Yadav, G Govardhan, G Kalita… - Atmospheric …, 2024 - Elsevier
Abstract Accurate prediction of PM 2.5, its optical properties and dominant chemical
components are essential for air quality studies. In this study, we investigated the effects of …

Regional scale air quality modelling system in India: issues, challenges and suggestive framework

N Shukla, S Gulia, SK Goyal - Arabian Journal of Geosciences, 2023 - Springer
The deteriorating air quality has become a matter of concern throughout the world with
significant seasonal variations on a regional and transboundary scale. The selection of …

[HTML][HTML] Stubble-burning activities in north-western India in 2021: Contribution to air pollution in Delhi

G Govardhan, R Ambulkar, S Kulkarni, A Vishnoi… - Heliyon, 2023 - cell.com
Stubble-burning in northern India is an important source of atmospheric particulate matter
(PM) and trace gases, which significantly impact local and regional climate, in addition to …

Sensitivity of WRF/Chem simulated PM2. 5 to initial/boundary conditions and planetary boundary layer parameterization schemes over the Indo-Gangetic Plain

P Gunwani, G Govardhan, C Jena, P Yadav… - Environmental …, 2023 - Springer
The ability of a chemical transport model to simulate accurate meteorological and chemical
processes depends upon the physical parametrizations and quality of meteorological input …