Vikas K. Patel

Vikas K. Patel
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Vikas verified their affiliation via an institutional email.
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Vikas verified their affiliation via an institutional email.
Indian Institute of Technology Kharagpur | IIT KGP

Doctor of Philosophy

About

36
Publications
3,430
Reads
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197
Citations
Additional affiliations
September 2020 - present
Indian Institute of Technology Kharagpur
Position
  • Researcher

Publications

Publications (36)
Chapter
According to the World Health Organization (WHO), the yearly premature mortality rate due to outdoor air pollution surpassed 3.2 million individuals in the year 2020. In recent years, there has been a growing use of satellite measurements in the field of air quality and public health assessments. One of the primary advantages of satellite data is t...
Article
Full-text available
The Thar is the most densely populated desert in the world, which supports diverse ecosystems and human endeavours such as agriculture and socioeconomic activities. Water demand and supply in the Thar play an essential role in regulating the socioeconomic activities of the region. Inland water and precipitation aid the movement of water in the Thar...
Article
Full-text available
The Third Pole (TP) is the world’s largest highland and has one of the biggest reservoirs of glacier ice mass and snow cover on the Earth. Three major Asian rivers (the Indus, Ganga and Brahmaputra) are nourished by the melting of glaciers and snow in Central Himalaya, which are inevitable for the socioeconomic sustainability and water security of...
Article
We assess the spatio-temporal changes in global atmospheric nitrogen dioxide (NO₂) in its hotspots and 3000 cities with respect to past and current vehicular policies for the period 2002–2019. The quantile-quantile (Q-Q) adjustment method is applied to merge the NO₂ measurements from different satellites to make the long-term data (2002–2019) for t...
Article
Sulphur dioxide (SO2) is a hazardous air pollutant, which is mostly emitted from burning of fossil fuels, and has an adverse impact on the human health and ecosystem functioning. The COVID-19 natural anthropause (lockdown) provides a great opportunity to understand the changes in SO2 pollution across the globe, as there was a temporary standstill f...
Article
Full-text available
The development of catastrophic mesoscale convective systems in the atmosphere, such as thunderstorms, is caused by several factors, the most important of which is moisture in the lower troposphere and then the instability and lifting of air parcels. In pre-monsoon, northeast and adjoining eastern India are susceptible to thunderstorms. Herein, we...
Article
The Third Pole (TP) is a high mountain region in the world, and is well-known for its pristine environment, but recent development activities in the region have degraded its air quality. Here, we investigate the spatial and temporal changes of the air pollutants ammonia (NH₃), sulphur dioxide (SO₂) and carbon monoxide (CO) in TP, and reveal their s...
Conference Paper
Precipitable water vapour (PWV) is one of the major factors affecting weather and precipitation extremes. High values of PWV suggest more water available for potential rainfall. Therefore, a thorough understanding of PWV distribution in the atmosphere and its temporal variation are necessary to understand its impact on precipitation intensity. Here...
Conference Paper
World's largest highland region, including the Hindukush Himalaya and Tian Shan mountains, with a total area of about 7 million km2 has the largest fresh ice mass outside the poles and referred to as the Third Pole (TP), which is also an ecologically fragile zone of twelve countries. Ten major Asian rivers are nourished by the glacier and snowmelt...
Article
Full-text available
Atmospheric pollution in the Arctic has been an important driver for the ongoing climate change there. Increase in the Arctic aerosols causes the phenomena of Arctic haze and Arctic amplification. Our analysis of aerosol optical depth (AOD), black carbon (BC), and dust using ground-based, satellite, and reanalysis data in the Arctic for the period...
Conference Paper
The Thar Desert, alternatively known as the Great Indian Desert, is an arid region characterised by undulating sand dunes in the Indian subcontinent. A part of the desert is in the Indian state of Rajasthan, but it extends from the eastern regions of Pakistan to the Punjab and Sindh Provinces. In recent decades, although climate change has been inf...
Conference Paper
Wetlands are of utmost importance due to their provision of several ecosystem services that are essential to humanity. These services include a wide range of advantages, including the supply of freshwater, provision of food and building materials, support for biodiversity, facilitation of flood control, replenishment of groundwater, and mitigation...
Conference Paper
The rise in greenhouse gases (GHGs) induced by human activities causes temperatures to rise both at regional and global scales. The most important GHG, water vapour, has a large positive feedback effect on the Earth's climate system and global warming. It increases the magnitude of climate change in response to natural and human-caused climate vari...
Conference Paper
The Asian Summer Monsoon Anticyclone (ASMA) has gained significant attention due to its role in atmospheric dynamics, chemistry and radiative variability. The concentration and spatial distribution of chemical compounds in the upper troposphere and lower stratosphere (UTLS) are strongly influenced by the process of stratosphere-troposphere exchange...
Article
We analyse the long-term (1980-2020) changes in aerosols over the Third Pole (TP) and assess the changes in radiative forcing (RF) using satellite, ground-based and reanalysis data. The annual mean aerosol optical depth (AOD) varies from 0.06 to 0.24, with the highest values of around 0.2 in the north and southwest TP, which are dominated by dust f...
Article
Full-text available
Among the greenhouse gases (GHGs), atmospheric water vapor is the most abundant, has a large influence on the radiation budget of Earth, and plays a decisive role in regional weather processes. We investigate the long-term (1980–2020) changes in global tropospheric water vapor using satellite, radiosonde, and reanalysis data and assess the impact o...
Article
The COVID-19 lockdown (LD) provided a unique opportunity to examine the changes in regional and global air quality. Changes in the atmospheric carbon monoxide (CO) concentrations during LD warrant a thorough analysis as CO is a major air pollutant that affects human health, ecosystem and climate. Our analysis reveals a decrease of 5-10% in the CO c...
Article
Carbon Monoxide (CO) is not a greenhouse gas (GHG), but has the capacity to change atmospheric chemistry of other GHGs such as methane and ozone, and therefore indirectly affects Earth's radiative forcing of the GHGs and surface temperature. Here, we use the CO mixing ratio at 850 hPa from the Tropospheric Emission Spectrometer (TES) reanalysis and...
Article
The atmospheric aerosols and air pollutants affect the earth's atmosphere, human health and climate system. Human-induced aerosols and air pollutants are the major causes of the deterioration of air quality. The COVID-19 lockdown restricted the movement of people and vehicles, stopped industrial and agricultural activities and may have impacts on t...
Article
Full-text available
The increasing population and its associated amenities demand innovative devices, infrastructure, methods, plans and policies. Regional climate has a great role in deciding the air quality and energy demand, and therefore, weather and climate have an indisputable role in its consumption and storage. Here, we present the changes in trace gases and a...
Conference Paper
Among all greenhouse gases (GHGs), atmospheric water vapour is the most abundant and has huge influence on the Earth's radiation budget, and plays decisive role in regional weather processes. Unlike other GHGs, which are controlled by emissions, atmospheric water vapour is influenced by the surface temperature. Here, we examine the long-term change...
Conference Paper
Full-text available
The improvement in air quality during COVID-lockdown has been vastly studied around the globe. The implications of improved air quality during COVID-lockdown on local environment, meteorology and human health has found a lot of attention. However, its secondary impacts are largely unknown. Since, India is bestowed with vast croplands and lush green...
Conference Paper
Air pollution is a big threat to public health, adversely affect ecosystems and changes regional and global climate as some of the pollutants are greenhouse gases. The poor air quality highly challenges India's prospects of achieving its development goals in several ways. Therefore, sustainable solutions for this problem are necessary in a global w...
Article
Full-text available
India has a tropical monsoon climate with significant regional variability in rainfall and temperature, where precipitation is closely connected to precipitable water vapour (PWV). Here, the satellite and reanalysis data are considered to study the spatial and temporal changes of PWV over India in 1980–2020. We have also analysed its potential driv...
Article
The direct effect of pandemic induced lockdown (LD) on environment is widely explored, but its secondary impacts remain largely unexplored. Therefore, we assess the response of surface greenness and photosynthetic activity to the LD-induced improvement of air quality in India. Our analysis reveals a significant improvement in air quality marked by...
Conference Paper
The increase in greenhouse gases (GHGs) caused by anthropogenic activities leads to rise in regional and global temperatures. Water vapour, the most abundant GHG, has a significant positive feedback effect on Earth’s climate system and global warming. Unlike other greenhouse gases, which are controlled by emissions, atmospheric water vapour is infl...
Article
Full-text available
India relies heavily on coal-based thermal power plants to meet its energy demands. Sulphur dioxide (SO2) emitted from these plants and industries is a major air pollutant. Analysis of spatial and temporal changes in SO2 using accurate and continuous observations is required to formulate mitigation strategies to curb the increasing air pollution in...
Article
The increase in greenhouse gases (GHGs) due to anthropogenic activities enhances regional and global temperatures. The most abundant GHG, i.e., water vapour, has a vital positive feedback on the global warming and Earth's climate system. This study focuses on the spatial and temporal changes in water vapour in the troposphere over India and Indian...
Thesis
Climate change is one of the biggest problems facing the world today and human activities are primarily responsible for this change. Atmospheric aerosols originating from anthropogenic and natural sources are playing a major role in global and regional climate change. Aerosols can affect the climate system both directly by interfering with incoming...
Article
Atmospheric aerosols are of natural and anthropogenic origin, which directly affect the climate by scattering and absorbing the solar radiation and indirectly by enhancing the reflectivity of clouds by acting as Cloud Condensation Nuclei (CCN). Aerosols are highly variable in their concentration, composition, physical, chemical and optical properti...
Conference Paper
Drought is one of the slow onset natural hazards affecting wide spectrum including economy, agriculture and human health. The coverage, duration and frequency of the drought can be analyzed and estimated to provide insight into the historical perspective of drought events as well as the long-term climate variation in the study area. Climatic change...

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