Jayachandran Venugopalan Nair

Jayachandran Venugopalan Nair
National Atmospheric Research Laboratory · Clouds and Convective Systems Group

Ph. D.

About

31
Publications
5,886
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380
Citations
Introduction
Jayachandran V currently works at National Atmospheric Research Laboratory; on Clouds and Convective Systems. He works on the Urbanization impact studies and his most recent publication is 'Long-term regional air pollution characteristics in and around Hyderabad, India: Effects of natural and anthropogenic sources'.
Additional affiliations
January 2013 - April 2019
Indian Space Research Organization
Position
  • Researcher
May 2019 - June 2021
Indian Insitute of Tropical Meteorology
Position
  • Project Scientist
July 2021 - November 2021
Indian Institute of Science Bangalore
Position
  • Project Scientist
Education
August 2007 - April 2009
University of Kerala
Field of study
  • Physics

Publications

Publications (31)
Article
Full-text available
The Black Carbon (BC) injected into the atmosphere from various sources not only adversely affects the air quality and human health but also significantly influences the earth atmosphere climate system by modulating the global radiation budget. The BC aerosols are mainly removed from atmosphere by the wet scavenging mechanism. The representation of...
Article
India is experiencing a rapid urban growth in recent decades modifying the regional air quality around urban agglomerations. Hyderabad, the capital city of Telangana state in India, has been experiencing significant urbanization of about 17 % growth in urban agglomeration over the past two decades. We investigated the longterm pollution characteris...
Article
Full-text available
The demand for effective methods to augment precipitation over arid regions of India has been increasing over the past several decades as the changing climate brings warmer average temperatures. In the fourth phase of the Cloud Aerosol Interaction and Precipitation Enhancement Experiment (CAIPEEX-IV), a scientific investigation was conducted over a...
Article
Three distinct environmental regimes (moist-rainy monsoon, dry-intermittent-rainy monsoon and post-monsoon) based on atmospheric moist static energy and surface rainfall measurements over the rain shadow region of the Indian peninsula are investigated with large eddy simulation (LES) model and in situ cloud microphysics observations. Cloud condensa...
Article
Full-text available
Chemical properties of the continental outflow to the northern Indian Ocean are investigated using shipborne measurements carried out as a part of the Integrated Campaign for Aerosols, gases and Radiation Budget (ICARB-2018) experiment during winter 2018. The organic carbon (OC) and elemental carbon (EC) showed high values (OC = 4.8 ± 2.1 μg m⁻³ an...
Article
Full-text available
The properties of carbonaceous aerosols at the rain-shadow region of the Western Ghats of India are studied as part of the Cloud Aerosol Interaction Precipitation Enhancement Experiment (CAIPEEX) during the Indian summer monsoon using optical and thermal methods. The optically derived black carbon (BC) and thermally derived elemental carbon (EC) co...
Article
Hygroscopic growth factor and cloud condensation nuclei (CCN) activation properties of aerosols along with their physical and absorption properties were measured during the Cloud Aerosol Interaction and Precipitation Enhancement Experiment over a rain-shadow region, Solapur, India. The hygroscopicity of aerosols at both sub-and supersaturated regim...
Article
Full-text available
Regional climatic implications of aerosol black carbon (BC), which has a wide variety of anthropogenic sources in large abundance, are well recognized over South Asia. Significant uncertainties remain in its quantification due to a lack of sufficient information on the microphysical properties (its concentration, size, and mixing state with other a...
Article
Full-text available
Regional climatic implications of aerosol black carbon (BC) are well recognized over South Asia, which has a wide variety of anthropogenic sources in a large abundance. Significant uncertainties remain in its quantification due to lack of sufficient information on the microphysical properties (its concentration, size, and mixing state with other ae...
Article
The particle number concentrations, size distributions, and new particle formation (NPF) events were investigated in the South Asian outflow over South-eastern Arabian Sea (SEAS), northern (NIO) and the equatorial Indian Ocean (EIO) during the winter of 2018 based on the extensive measurements of particle number size distributions in size range 10–...
Article
Multimode PNSDs over the northern Indian Ocean. � New particle formation (NPF) events in coastal and remote ocean. � NPF events associated with subsidence of free-tropospheric air masses to the MABL. � Enhanced organics mass concentrations during the NPF events. A R T I C L E I N F O Keywords: New particle formation Marine aerosols Indian Ocean aer...
Article
Full-text available
During the combined South-West Asian Aerosol–Monsoon Interactions and Regional Aerosol Warming Experiment (SWAAMI–RAWEX), collocated airborne measurements of aerosol number–size distributions in the size (diameter) regime 0.5 to 20 µm and black carbon (BC) mass concentrations were made across the Indo-Gangetic Plain (IGP), for the first time, from...
Article
Full-text available
Continuous aerosol and cloud condensation nuclei (CCN) measurements carried out at the ground observational facility situated in the rain-shadow region of the Indian subcontinent are illustrated. These observations were part of the Cloud Aerosol Interaction Precipitation Enhancement Experiment (CAIPEEX) during the Indian summer monsoon season (June...
Article
Full-text available
Extensive measurements of cloud condensation nuclei (CCN) and condensation nuclei (CN) concentrations in the South Asian outflow to the northern Indian Ocean were carried out on board an instrumented research vessel, as part of the Integrated Campaign for Aerosols, gases and Radiation Budget (ICARB) during the winter season (January–February 2018)....
Preprint
Full-text available
Abstract. During the South-West Asian Aerosol Monsoon Interaction (SWAAMI) experiment, collocated air-borne measurements of aerosol number-size distributions in the size (diameter) regime 0.5 to 20 µm and black carbon (BC) mass concentrations were made across the Indo-Gangetic Plains (IGP), for the first time, from three distinct locations, just pr...
Preprint
Full-text available
Continuous aerosol and Cloud Condensation Nuclei (CCN) measurements carried out at the ground observational facility situated in the rain-shadow region of the Indian sub-continent are illustrated. These observations were part of the Cloud-Aerosol Interaction Precipitation Enhancement EXperiment (CAIPEEX) during the Indian Summer Monsoon season (Jun...
Article
Full-text available
Concurrent measurements of the altitude profiles of the concentration of cloud condensation nuclei (CCN), as a function of supersaturation (ranging from 0.2 % to 1.0 %), and aerosol optical properties (scattering and absorption coefficients) were carried out aboard an instrumented aircraft across the Indo-Gangetic Plain (IGP) just prior to the onse...
Article
Full-text available
Extensive measurements of cloud condensation nuclei (CCN) and condensation nuclei (CN) concentrations in the South Asian outflow to the northern Indian Ocean were carried out on board an instrumented research vessel, as part of the Integrated Campaign for Aerosols, gases and Radiation Budget (ICARB) during winter season (January–February 2018). Mea...
Article
Full-text available
Concurrent measurements of the altitude profiles of cloud condensation nuclei (CCN) concentration, as a function of supersaturation (ranging from 0.2 % to 1.0 %), and aerosol optical properties (scattering and absorption coefficients) were carried out aboard an instrumented aircraft across the Indo-Gangetic Plain (IGP) covering coastal, urban and a...
Article
Full-text available
Measurements of the vertical profiles of the optical properties (namely the extinction coefficient and scattering and absorption coefficients respectively σext / σscat / σabs) of aerosols have been made across the Indo-Gangetic Plain (IGP) using an instrumented aircraft operated from three base stations – Jodhpur (JDR), representing the semi-arid w...
Article
Full-text available
Measurements of the vertical profiles of the optical properties (namely the extinction/scattering and absorption coefficients; respectively σext/σscat/σabs) of aerosols have been made across the Indo-Gangetic Plain (IGP) using an instrumented aircraft operated from three base stations (Jodhpur (JDR) representing the semiarid western IGP; Varanasi (...
Article
Cloud Condensation Nuclei (CCN) concentrations, aerosol number concentrations larger than about 3 nm (CN), and aerosol scattering and absorption coefficient measurements carried out at a hill station (Ponmudi, 8.8°N, 77.1°E, ~960 m amsl) located on Western Ghats and at a nearby coastal location (Thumba, 8.5°N, 76.9°E, ~3 m amsl) in the peninsular I...
Article
Number concentration measurements of cloud condensation nuclei (CCN) at five supersaturation values between 0.2 and 1.0% were made from a coastal site (Thiruvananthapuram) of peninsular India using a single column CCN counter during the summer monsoon period (June–September) of 2013 and 2014. The CCN concentration over this site showed diurnal vari...
Conference Paper
Full-text available
The formation of ultrafine particles from the gaseous precursors and their subsequent growth to larger sizes has been observed globally in distinct environments, but it is still one of the intensely investigated topics due to prevalent gaps in the understanding of the underlying mechanisms. In this study, fine and ultrafine particle concentrations...
Article
The seasonality and mutual dependence of aerosol optical properties and cloud condensation nuclei (CCN) activity under varying meteorological conditions at the high-altitude Nainital site (~2 km) in the Indo-Gangetic Plains were examined using nearly year-round measurements (June 2011 to March 2012) at the Atmospheric Radiation Measurement (ARM) mo...

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