S. K. Bhattacharya
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View article: Spatio-Temporal analysis of the Volcanic Eruption Zone using SAR Interferometric Technique
Spatio-Temporal analysis of the Volcanic Eruption Zone using SAR Interferometric Technique Open
The phenomena of eruption induced land deformation are insightful for the understanding of the associated spatio-temporal processes. This study focusses on the same phenomena which was induces due to the Wolf Volcano’s effusive type erupti…
View article: Study of mergers and acquisitions (m&a’s) in the Indian banking sectors
Study of mergers and acquisitions (m&a’s) in the Indian banking sectors Open
This research studies about the lizes financial parameters to assess the performance of merged institutions before and after the merger. The study indicates that most work in this field has mitigated negative effects on businesses from mer…
View article: Sustainability & Circular Economy in Manufacturing Supply Chains: Prioritizing Low-Carbon Production, Scope 3 Emissions, and Circular Models for ESG Compliance
Sustainability & Circular Economy in Manufacturing Supply Chains: Prioritizing Low-Carbon Production, Scope 3 Emissions, and Circular Models for ESG Compliance Open
Purpose: Manufacturers across sectors are now trying to build sustainability and circular economy ideas into their supply chains. This is a move to meet their social and governance responsibilities and to keep up with the growing number of…
View article: Integrated Molecular and Clinical Profiling of Primary Mitochondrial Oxidative Phosphorylation Disorders in an Indian Cohort: Insights from Genetics, Neuroimaging, and Machine Learning
Integrated Molecular and Clinical Profiling of Primary Mitochondrial Oxidative Phosphorylation Disorders in an Indian Cohort: Insights from Genetics, Neuroimaging, and Machine Learning Open
Mitochondrial disorders are a diverse group of inherited diseases caused by defects in oxidative phosphorylation, the primary way cells produce energy. These disorders often affect multiple organ systems, particularly those with high energ…
View article: Assessing raindrop evolution over northern Western Ghat from stable isotope signature of rain and vapour
Assessing raindrop evolution over northern Western Ghat from stable isotope signature of rain and vapour Open
Isotope exchange between vapor and rain critically influences rain isotope values, which are useful in modeling raindrop evolution. A one-dimensional Below Cloud Interaction Model (BCIM) has been used to quantify sub-cloud processes affect…
View article: Novel Triple-Oxygen Isotope Study Indicates Unprecedented Ozone–Particulate Interaction Pathways in Atmospheric Pollution Chemistry
Novel Triple-Oxygen Isotope Study Indicates Unprecedented Ozone–Particulate Interaction Pathways in Atmospheric Pollution Chemistry Open
Ozone plays a fundamental role in the chemistry of the atmosphere, mediating oxidation reactions in phases and at phase boundaries. Here, we investigate the least-explored solid-phase heterogeneous processes involving ozone to understand t…
View article: Quantifying Raindrop Evaporation Deficit in General Circulation Models from Observed and Model Rain Isotope Ratios on the West Coast of India
Quantifying Raindrop Evaporation Deficit in General Circulation Models from Observed and Model Rain Isotope Ratios on the West Coast of India Open
Raindrop evaporation is an important sub-cloud process that modifies rainfall amount and rainwater isotope values. Earlier studies have shown that various general circulation models (GCMs) do not incorporate this process properly during th…
View article: Vapor Isotope Probing of Typhoons Invading the Taiwan Region in 2016
Vapor Isotope Probing of Typhoons Invading the Taiwan Region in 2016 Open
Every year, several typhoons originating from the West Pacific come close to Taiwan, modulating the regional weather through intense rainfall and enhanced humidity. The isotopic ratios (δ 18 O and δD) in the typhoon vapor evolve along its …
View article: Cretaceous-Tertiary boundary marine extinctions: The Russian platform record
Cretaceous-Tertiary boundary marine extinctions: The Russian platform record Open
Floral, faunal and stable isotope evidence in a continuous sequence of latest Cretaceous and earliest Tertiary shallow water marine deposits in the Mangyshlak Peninsula, USSR suggest sudden and severe cooling possibly accompanied by increa…
View article: Evidence of high rainfall in India during Deccan eruptions based on triple oxygen isotope composition of petrified woods
Evidence of high rainfall in India during Deccan eruptions based on triple oxygen isotope composition of petrified woods Open
<p>The intertrappean sediments and the bole beds of the Deccan volcanic province hold clues to the climatic condition in India during the Cretaceous/Paleocene transition. Earlier isotopic studies of the bulk clays from the &#8216…
View article: Isotopic and Concentration Analyses of CO<sub>2</sub> and CH<sub>4</sub> in Association With the Eddy‐Covariance Based Measurements in a Tropical Forest of Northeast India
Isotopic and Concentration Analyses of CO<sub>2</sub> and CH<sub>4</sub> in Association With the Eddy‐Covariance Based Measurements in a Tropical Forest of Northeast India Open
Among the natural ecosystems, forests and wetlands emit a sizable amount of carbon dioxide (CO 2 ) and methane (CH 4 ) through autotrophic and heterotrophic respiration and bacterial activities. Interestingly, some evidence suggests that a…
View article: Variable thermoregulation of Late Cretaceous dinosaurs inferred by clumped isotope analysis of fossilized eggshell carbonates
Variable thermoregulation of Late Cretaceous dinosaurs inferred by clumped isotope analysis of fossilized eggshell carbonates Open
The thermal physiology of non-avian dinosaurs, especially the endothermic/ectothermic nature of their metabolism, inferred indirectly using body mass, biophysical modelling, bone histology and growth rate, has long been a matter of debate.…
View article: Stratospheric Incursion as a Source of Enhancement of the Isotopic Ratios of Atmospheric N<sub>2</sub>O at Western Pacific
Stratospheric Incursion as a Source of Enhancement of the Isotopic Ratios of Atmospheric N<sub>2</sub>O at Western Pacific Open
We present analyses of nitrogen and oxygen isotopic ratios and site‐preference (SP) values of atmospheric nitrous oxide samples obtained from Taiwan in west Pacific. Air samples were collected during September 2013 to January 2016 from Tai…
View article: Triple Oxygen and Clumped Isotope Compositions of CO<sub>2</sub> in the Middle Troposphere
Triple Oxygen and Clumped Isotope Compositions of CO<sub>2</sub> in the Middle Troposphere Open
We report the oxygen isotopic anomaly (Δ 17 O) and clumped isotopic composition (Δ 47 ) of CO 2 sampled from the middle troposphere (~10 km above ground) during two CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere Ba…
View article: Isotopic Fractionation in Photolysis of Ozone in the Hartley and Chappuis Bands
Isotopic Fractionation in Photolysis of Ozone in the Hartley and Chappuis Bands Open
The isotopic enhancement of atmospheric ozone (O 3 ) is mainly determined by two processes of formation and photolytic decomposition. The formation is known to be associated with isotopic fractionation which can be as high as 120‰ relative…
View article: Spatiotemporal Variability of Oxygen Isotope Anomaly in near Surface Air CO2 over Urban, Semi-Urban and Ocean Areas in and around Taiwan
Spatiotemporal Variability of Oxygen Isotope Anomaly in near Surface Air CO2 over Urban, Semi-Urban and Ocean Areas in and around Taiwan Open
The most commonly used tracers to probe the atmospheric and biogeochemical cycles of CO2 are 16O12C16O, 16O13C16O, and 16O12C18O. Considering the number and diversity of sources and sinks affecting CO2, these tracers are not always suffici…
View article: Near Surface CO2 Triple Oxygen Isotope Composition
Near Surface CO2 Triple Oxygen Isotope Composition Open
The isotopic composition of carbon dioxide in the atmosphere is a powerful tool for constraining its sources and sinks. In particular, the 17O oxygen anomaly [Δ17O = 1000 × ln(1 + δ17O/1000) - 0.516 × 1000 × ln(1 + δ18O/1000)], with a valu…