Observations and Modeling of GHG Concentrations and Fluxes Over India

Chakraborty, Supriyo; Burman, Pramit Kumar Deb; Roy, Somnath Baidya; Valsala, Vinu

doi:10.1007/978-981-15-4327-2_4

Cited by 14 publications

(6 citation statements)

References 99 publications

(126 reference statements)

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“…However, the spatial and temporal gaps in observational data over certain regions impose uncertainties on regional‐scale flux estimations (Byrne et al., 2017; Liu et al., 2014). South Asia (see Figure 1; defined as the region comprising India, Pakistan, Bangladesh, Nepal, Sri Lanka, and Bhutan) is such a region with sparse observations, which impedes the accurate quantification of regional CO 2 fluxes and seasonal variability of net ecosystem exchange (NEE) fluxes (Chakraborty et al., 2020; Patra et al., 2013; Thompson et al., 2016). “Bottom‐up” NEE estimates from terrestrial ecosystem models also have uncertainty over South Asia (Patra et al., 2013), warranting further studies using ecosystem models, atmospheric inverse models and regional in situ atmospheric CO 2 mole fraction measurement data for this region.…”

Section: Introductionmentioning

confidence: 99%

OCO‐2 Satellite‐Imposed Constraints on Terrestrial Biospheric CO₂ Fluxes Over South Asia

et al. 2022

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Section: Introductionmentioning

confidence: 99%

OCO‐2 Satellite‐Imposed Constraints on Terrestrial Biospheric CO₂ Fluxes Over South Asia

et al. 2022

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“…A 50 m tall micrometeorological tower was installed in Kaziranga National Park (26°34’N, 93°6’E) in 2014 as part of the MetFlux India project (Chakraborty et al., 2020). Being a reserve forest, the environment in the park is free of carbon‐emitting interfering anthropogenic activities.…”

Section: Methodsmentioning

confidence: 99%

Isotopic and Concentration Analyses of CO₂ and CH₄ in Association With the Eddy‐Covariance Based Measurements in a Tropical Forest of Northeast India

Metya

Chakraborty

Bhattacharya

et al. 2021

Earth and Space Science

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Among the natural ecosystems, forests and wetlands emit a sizable amount of carbon dioxide (CO2) and methane (CH4) through autotrophic and heterotrophic respiration and bacterial activities. Interestingly, some evidence suggests that a significant amount of CH4 is generated by the trees in forested ecosystems. The net ecosystem exchange (NEE), measured by the eddy covariance (EC) method, typically represents the net CO2 flux arising from the photosynthetic and respiration processes in the biosphere. This flux is subsequently partitioned into two components, the respired carbon and the assimilated carbon. However, the usual method of partitioning introduces significant errors in each of these fluxes. The present study was undertaken to address this issue where the NEE partitioning was constrained by using the carbon isotopic ratios of CO2. We used a real‐time in situ analyzer in a tropical forest in northeast India, the Kaziranga National Park. The greenhouse gas analyzer provided CO2 and CH4 concentrations, as well as their carbon isotopic ratios. The isotopic data were used to partition the EC‐derived NEE values and derive the isoflux values. Additionally, the isotopic data provided evidence of plant‐generated CH4 in conformity with some recent studies, which requires further investigation.

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“…The carbon level increases in India by local emissions, terrestrial biota and environment, Cyclonic disturbances in North Indian Ocean including Bay of Bengal & Arabian Sea, shift of ITCZ, MJO and Nino conditions Saito et al [14], Sheel et al [15] Chhabra A et al [16] and Joshi et al [17]. The seasonal CO 2 concentrations in air exhibit high as one move from equator to high latitude, i.e latitude wise, Chakraborty et al 2020 [18].…”

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Tax and Pandemic; Curbing Carbon Burden of India’s Blue Sky

Mishra

2020

CJAST

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Out line: Carbon dioxide is one of major signatures of Anthropocene. Energy sector contribute maximum to CO2 emission. Reaching 1.4billion population, India must strides to provide affordable, riskless, secure, uninterrupted and cleaner energy with energy security prioritized. The CO2 emission in India was 2201.865 MT CO2 e in 2019 matched to 2172.19 MT CO2e in the previous year. The apocalyptic pandemic of COVID19 have shut down the cities and forced people to migrate to native places as a result the carbon dioxide level has reduced in the sky. Methodology: After carbon tax implementation from 2010 and post Paris Agreement surge in Carbon tax in India’s climate from 2015 there was slow decline of CO2 level in the ever rising global grey sky. The carbon tax had raised faster rate but its effect was slow. Lockdowns, closures and confinement during the pandemic COVID-19 from March 2020 in India is the real-life experience explaining the additive control of carbon level of polluted air along with the burden of carbon tax globally including India. Discussion: The socio-economic impact of shutdowns of all industrial units, power generation and transport sectors along with immediate migration of all workers to their native place have dropped carbon level in air and initialized the concept of blue sky thinking. The present apocalyptic complex pandemic without vaccine has forced the government machinery to be utilized for life, neglecting livelihood. Presently after 4 stages of lock downs, the uplift of restrictions in 5th stage is allowed for lively hood and socio-economic sustenance. Conclusion: As post pandemic measures under economic bankruptcy, the Indian government should initiate strategic plans to restore the socio-economic normalcy and relax the heavy carbon tax on Indians as the carbon level is reduced as a major impact of COVID-19 during 2020.

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Observations and Modeling of GHG Concentrations and Fluxes Over India

Cited by 14 publications

References 99 publications

OCO‐2 Satellite‐Imposed Constraints on Terrestrial Biospheric CO₂ Fluxes Over South Asia

OCO‐2 Satellite‐Imposed Constraints on Terrestrial Biospheric CO₂ Fluxes Over South Asia

Isotopic and Concentration Analyses of CO₂ and CH₄ in Association With the Eddy‐Covariance Based Measurements in a Tropical Forest of Northeast India

Tax and Pandemic; Curbing Carbon Burden of India’s Blue Sky

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Observations and Modeling of GHG Concentrations and Fluxes Over India

Cited by 14 publications

References 99 publications

OCO‐2 Satellite‐Imposed Constraints on Terrestrial Biospheric CO2 Fluxes Over South Asia

OCO‐2 Satellite‐Imposed Constraints on Terrestrial Biospheric CO2 Fluxes Over South Asia

Isotopic and Concentration Analyses of CO2 and CH4 in Association With the Eddy‐Covariance Based Measurements in a Tropical Forest of Northeast India

Tax and Pandemic; Curbing Carbon Burden of India’s Blue Sky

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OCO‐2 Satellite‐Imposed Constraints on Terrestrial Biospheric CO₂ Fluxes Over South Asia

OCO‐2 Satellite‐Imposed Constraints on Terrestrial Biospheric CO₂ Fluxes Over South Asia

Isotopic and Concentration Analyses of CO₂ and CH₄ in Association With the Eddy‐Covariance Based Measurements in a Tropical Forest of Northeast India