Explanipedia

Atmospheric Lightning as Essential Climate Variable (ECV) and Its Availability Over India Using NRSC/ISRO Lightning Detection Sensor Network Open

Alok Taori, Arun Suryavanshi, Biswadip Gharai, M. V. R. Seshasai · 2021

Atmospheric lightning is an outcome of extreme complex physical processes occurring in the atmosphere. Cloud-to-ground (CG) lightning is considered as a natural disaster. Understanding the importance of CG lightning and implication of the …

Establishment of lightning detection sensors network in India: retrieval of essential climate variables and vulnerability mapping Open

Alok Taori, Arun Suryavanshi, Biswadip Gharai, S. D. Pawar, M. V. R. Seshasai · 2021

A network of 25 lightning detection sensors (LDS) has been established by National Remote Sensing Centre (NRSC), Indian Space Research Organization (ISRO). In the present network, sensors are located in the north-east, east coastal, centra…

Response of Ambient BC Concentration Across the Indian Region to the Nation-Wide Lockdown: Results from the ARFINET Measurements of ISRO-GBP Open

Mukunda M. Gogoi, S. Suresh Babu, B.S. Arun, K. Krishna Moorthy, A. Ajay , et al. · 2021

In this study, we assess the response of ambient aero-sol black carbon (BC) mass concentrations and spec-tral absorption properties across Indian mainland during the nation-wide lockdown (LD) in connection with the Coronavirus Disease 19 (…

Mapping of Solar Resource Based on INSAT 3D/3DR Surface Insolation Product Open

Arun Suryavanshi, Alok Taori, A. O. Varghese, Biswadip Gharai · 2020

Solar Insolation is the major contributor of earth’s radiation and energy budget. The insolation reaching the surface is a prime input for eco-physiological processes such as evapotranspiration and photosynthesis. Therefore, it is as…

Detection of Atmospheric Lightning Activity with Ground-Based Radiofrequency Receivers – Establishment and Initial Results Open

Alok Taori, Arun Suryavanshi, Rounaq Goenka, Biswadip Gharai, M. K. Madhav Haridas , et al. · 2020

Understanding atmospheric lightning flashes and their occurrences is one of the most important aspects of the Earth's climate science.Real-time lightning data have profound importance in climate science, airquality research and atmospheric…

Enhancement of carbon monoxide concentration in atmosphere due to large scale forest fire of Uttarakhand Open

Jaya Thakur, Prajesh Thever, Biswadip Gharai, MVR Sesha Sai, VNRao Pamaraju · 2019

The richly forested Indian state of Uttarakhand experienced widespread forest fires in April to May 2016. The current study examines dispersion of carbon monoxide (CO) from the source regions of forest fire to distant places, using the Lag…

Retrieval of CO2, CH4, CO and N2O using ground-based FTIR data and validation against satellite observations over the Shadnagar, India Open

Mahesh Pathakoti, Sreenivas Gaddamidi, Biswadip Gharai, Sesha Sai M. V. Rama, Rajan Kumar Sundaran , et al. · 2019

An improved column averaged concentration (X) of greenhouse gases (GHGs) namely CO2, CH4, CO and N2O are retrieved using ground-based Fourier Transform Infrared (FTIR; model IFS125M) Spectrometer data collected at Atmospheric Science Lab (…

Mesoscale Model Compatible IRS-P6 AWiFS-Derived Land use/Land Cover of Indian Region Open

Biswadip Gharai, P. Venkateswara Rao, C. B. S. Dutt · 2018

Mesoscale models, in general, are run using the US Geological Survey (USGS) 25-category land use/ land cover (LU/LC) data available at different spatial resolutions.The USGS data over the Indian region suffers from two types of errors, viz…

Influence of meteorological parameters on atmospheric CO2 at Bharati, the Indian Antarctic research station Open

Mahesh Pathakoti, Sreenivas Gaddamidi, Biswadip Gharai, Prijith Sudhakaran Syamala, Pamaraju Venkata Narasimha Rao , et al. · 2018

During the 35th Indian Scientific Expedition to Antarctica, measurements of atmospheric carbon dioxide (CO2) were carried out using a Li-Cor CO2/H2O analyser at Bharati, the Indian Antarctic research station. This study examines the short-…

Cross-Sectional View of Atmospheric Aerosols over an Urban Location in Central India Open

Subin Jose, Biswadip Gharai, Pamaraju Venkata Narasimha Rao · 2016

Surface, column and vertically resolved variations of physical and optical properties of atmospheric aerosol over Hyderabad, a tropical urban location in central India are explored on the basis of ground based and satellite retrieved data.…

Recent changes on land use/land cover over Indian region and its impact on the weather prediction using Unified model Open

C. K. Unnikrishnan, Biswadip Gharai, Saji Mohandas, Ashu Mamgain, E. N. Rajagopal , et al. · 2016

This study compares the changes of land use/land cover (Lu/Lc) or the surface type in last decades over India. Recent surface‐type fractions show few major regional changes over India. There is a decrease in vegetation fraction, increase i…

Satellite‐based shortwave aerosol radiative forcing of dust storm over the Arabian Sea Open

Subin Jose, Biswadip Gharai, Preeti Rao, C. B. S. Dutt · 2015

Dust storm events over the Arabian Sea ( AS ) have been detected using Moderate Resolution Imaging Spectroradiometer ( MODIS ) data. Shortwave Aerosol Radiative Forcing ( SWARF ) due to dust storm is estimated using synchronous observation…

Characterisation of Absorbing Aerosols Using Ground and Satellite Data at an Urban Location, Hyderabad Open

Subin Jose, K. Niranjan, Biswadip Gharai, Pamaraju Venkata Narasimha Rao, Vijayakumar S. Nair · 2015

In the present study we have attempted to characterize aerosols using their optical properties over a tropical urban location of Hyderabad, India. We have analyzed three years of in-situ data on aerosol absorption from Aethalometer and sca…

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