A5001063498- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Climate variability and models
- Meteorological Phenomena and Simulations
- Plant Water Relations and Carbon Dynamics
- Methane Hydrates and Related Phenomena
- Atmospheric aerosols and clouds
- Air Quality Monitoring and Forecasting
- Computational Drug Discovery Methods
- Hydrocarbon exploration and reservoir analysis
- Carbon Dioxide Capture Technologies
- Geochemistry and Geologic Mapping
- Remote Sensing in Agriculture
- COVID-19 impact on air quality
- Natural Antidiabetic Agents Studies
- Microgrid Control and Optimization
- Ocean Acidification Effects and Responses
- Ionosphere and magnetosphere dynamics
- Photovoltaic System Optimization Techniques
- Marine and coastal ecosystems
- Diverse Scientific Research Studies
- Solar Thermal and Photovoltaic Systems
- Fisheries and Aquaculture Studies
- Air Quality and Health Impacts
Indian Institute of Tropical Meteorology
2016-2025
Ministry of Earth Sciences
2021-2025
Savitribai Phule Pune University
2020-2024
CT Group Of Institutions
2023
Post Graduate Institute of Medical Education and Research
2014
Max Planck Institute for Biogeochemistry
2006-2007
Changes in tropical wetland, ruminant or rice emissions are thought to have played a role recent variations atmospheric methane (CH4) concentrations. India has the world's largest population and produces ~ 20% of rice. Therefore, changes these sources could significant implications for global warming. Here, we infer India's CH4 period 2010-2015 using combination satellite, surface aircraft data. We apply high-resolution transport model simulate data from platforms fluxes at sub-national...
The appearance of COVID-19 in December, 2019 China and its rapid spread all over the globe, forced governments to severely curb social economic activities their respective countries. Barring essential services, most business transport sectors have been suspended an unprecedented lockdown imposed major economies world. South-East Asian regions, such as India China, were no different. As a result, pollutant level has gone down these air quality improved somewhat better than it was before...
Abstract The normalized difference vegetation index (NDVI), derived from the Advanced Very High Resolution Radiometer (AVHRR) (1981–2000), and Moderate Imaging Spectroradiometer (MODIS) Aqua data (2000–2010) are analysed to examine their spatio-temporal variability over Indian region. Climatic factors well known be associated with vegetation. Therefore, an attempt has also been made in this study impact of climate on NDVI average patterns suggest that is climatic such as rainfall...
We employed a global high-resolution inverse model to optimize the CH4 emission using Greenhouse gas Observing Satellite (GOSAT) and surface observation data for period from 2011–2017 two main source categories of anthropogenic natural emissions. used Emission Database Global Atmospheric Research (EDGAR v4.3.2) methane scaled them by country match national inventories reported United Nations Framework Convention on Climate Change (UNFCCC). Wetland soil sink prior fluxes were simulated...
Amongst all the anthropogenically produced greenhouse gases (GHGs), carbon dioxide (CO
Abstract The spatiotemporal variability of terrestrial biospheric carbon dioxide (CO 2 ) fluxes over South Asia has large uncertainty. Orbiting Carbon Observatory (OCO‐2) satellite provides much‐needed retrievals column‐average CO on a global‐scale, with the highest sensitivity to surface and resolution available to‐date. This study conducted global inverse model simulations, assimilating in situ (IS) data OCO‐2 retrievals, assess optimized net ecosystem exchange (NEE) for Asia. Annual Net...
The carbon sink over land plays a key role in the mitigation of climate change by removing dioxide (CO2) from atmosphere. Accurately assessing capacity across regions should contribute to better future projections and help guide global emissions towards Paris Agreement. This study estimates terrestrial CO2 fluxes India using high-resolution inverse model that assimilates surface observations observation network Indian subcontinent, airborne sampling Brazil, data Greenhouse gas Observing...
Abstract As part of the REgional Carbon Cycle Assessment and Processes‐2 (RECCAP‐2) project Global Project, here we estimate GHG budgets (anthropogenic natural sources sinks) for South Asia (SA) region as a whole each country (Afghanistan, Bangladesh, Bhutan, India, Nepal, Pakistan, Sri Lanka) decade 2010–2019 (2010s). Countries in are experiencing rapid rise fossil fuel consumption demand agricultural land, leading to increased deforestation higher greenhouse gas emissions. This study...
Solar energy is a key driver of sustainable transitions, offering an alternative to fossil fuels while aiding in the achievement global climate targets. Nevertheless, traditional horizontal solar panel setups encounter limitations related space and efficiency, primarily due issues concerning tilt angle incidence. This review article explores feasibility vertically oriented panels, particularly context Mass Rapid Transit Systems (MRTS) India, where maximizing return on investment (ROI)...
Abstract The intraseasonal oscillations (ISOs) in terrestrial biospheric fluxes of carbondioxide (CO 2 ) over the Indian subcontinent were investigated for summer monsoon season from June to September. We utilized two optimized datasets Net Ecosystem Exchange (NEE) CO at a spatial resolution 1° × grid and daily time scale years 2000–2009. Seasonally, whole subcontinent, found be net source (sink) during July (August September). Intraseasonal variability distinct scales, 30–60 days 10–20...
Abstract. We present shipborne measurements of surface ozone (O3), carbon monoxide (CO), and methane (CH4) over the Bay Bengal (BoB), first time such have been performed during summer monsoon season, as a part Continental Tropical Convergence Zone (CTCZ) experiment 2009. O3, CO, CH4 mixing ratios exhibited significant spatial temporal variability in ranges 8–54 nmol mol−1, 50–200 1.57–2.15 µmol with means 29.7 ± 6.8 96 25 1.83 0.14 respectively. The average trace gases BoB air masses from...
With the increasing concern about anthropogenic emissions lead a globally changing climate, this is study on atmospheric carbon dioxide (CO2) being absorbed by plants and ecosystems in India, focusing process called Gross Primary Productivity (GPP). About 30% of CO2 caused human activity are forests other land areas. This research explores how regional land-use changes, weather conditions affect its GPP. The uses FLUXCOM climate model simulation from recent past to future analyze both...
Large‐scale carbon sources and sinks can be estimated by combining atmospheric CO 2 concentration data with transport inverse modeling. This approach has been limited sparse spatiotemporal tropospheric sampling. estimates from space using observations on recently launched satellites (Atmospheric Infrared Sounder (AIRS)), or platforms to (Infrared Atmospheric Sounding Interferometer (IASI), Orbiting Carbon Observatory (OCO)) have the potential fill some of these gaps. Here we assess realism...
Emergency Department (ED) of tertiary health care institute in India is mostly overcrowded, over utilized and inappropriately staffed. The challenges overcrowded EDs ill-managed patient flow admission processes result excessively long waits for patients.The objective the present study was to analyze system by assessing arrival waiting time distribution patients an out Patient (EOPD).This short cross-sectional descriptive conducted EOPD a Tertiary level Institution North month May, 2011. data...
Abstract. The increasing availability of atmospheric measurements greenhouse gases (GHGs) from surface stations can improve the retrieval their fluxes at higher spatial and temporal resolutions by inversions, provided that transport models are able to properly represent variability concentrations observed different stations. South East Asia (SEA; study area in this paper including regions Asia) is a region with large very uncertain emissions carbon dioxide (CO2) methane (CH4), most potent...