Effect of cloud on atmospheric ozone formation over Hyderabad (17.27°N, 78.28°E), India

Jana, Pritam Kumar; Saha, Indranil; Mukhopadhyay, S.; Sarkar, Debabrata

doi:10.1007/s12648-011-0173-9

Cited by 6 publications

(3 citation statements)

References 34 publications

(28 reference statements)

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“…Also, increased backscattered radiations by the cloud cover raise the concentration of OH radicals that leads to ozone building processes. Enhancement of the photolysis rates of ozone formations due to the backscattered solar radiations by clouds was also noted by Jana et al ( 2011 ).…”

Section: Resultssupporting

confidence: 62%

“…It is greatly influenced by predominant meteorological conditions (temperature, solar flux, wind speed and relative humidity). Several authors have studied the possible interaction of surface temperature and cloud cover on ozone concentration (Liu et al 2006 ; Voulgarakis et al 2009 ; Jana et al 2010 , 2011 ; Midya et al 2011 ; Ghosh et al 2015 ). O 3 concentration increases with an increase in solar flux and temperature (Gorai et al 2015 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Changes in tropospheric ozone concentration over Indo-Gangetic Plains: the role of meteorological parameters

Payra

Gupta

Sarkar

et al. 2022

Meteorol Atmos Phys

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This study seeks to understand and quantify the changes in tropospheric ozone (O 3 ) in lower troposphere (LT), middle troposphere (MT) and upper middle troposphere (UMT) over the Indo-Gangetic Plains (IGPs), India during the COVID-19 lockdown 2020 with that of pre-lockdown 2019. The gridded datasets of ozone from the European Centre for Medium-range Weather Forecasts (ECMWF) reanalysis product, ERA5 in combination with statistical interpolated (IDWs) surface NO 2 observations, present a consistent picture and indicate a significant tropospheric ozone enhancement over IGP during COVID-19 lockdown restrictions in May 2020. The Paper also examines the influencing role of meteorological parameters on increasing ozone concentration. Over LT, an increase in O 3 concentration (23%) is observed and in MT to UMT an enhancement of about 9–18% in O 3 concentration have been seen during May 2020 with respect to May 2019. An investigation on causes of increasing ozone concentration (35–85 ppbv) from MT to UMT during May 2020 reveals that there was significant rise (by 1–6%) in low cloud cover (LCC). Notably, higher LCC increases the backscattering of upward solar radiation from the top of the atmosphere. A positive difference of 5–25 W/m 2 in upward solar radiation (USR) is observed across the entire study region. The result suggests that higher LCC significantly contributed to the enhanced USR. Thereby, resulting in higher photolysis rate that lead to an increase in mid tropospheric ozone concentration during May 2020. The results highlight the importance of LCC as an important pathway in ozone formation and aid in scientific understanding of it.

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Section: Resultssupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Changes in tropospheric ozone concentration over Indo-Gangetic Plains: the role of meteorological parameters

Payra

Gupta

Sarkar

et al. 2022

Meteorol Atmos Phys

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“…In Kolkata, past studies have been conducted on the variation of total column ozone with temperature and different seasons (Midya and Saha 2011). Effects of cloud coverage and total column ozone over different cities in India report that concentration of column ozone increased with the increase of cloud occurrence (Jana et al 2010(Jana et al , 2011. The primary objective of this paper is to evaluate the effect of cloud coverage on the surface ozone over Kolkata.…”

Section: Introductionmentioning

confidence: 99%

Variability of surface ozone with cloud coverage over Kolkata, India

et al. 2015

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Critical analysis of experimental surface ozone data and cloud coverage is reported over Kolkata during the period January 2011 to December 2011. Significant relationship between these two parameters is observed. Analysis shows that the trend of surface ozone concentration and cloud coverage follow opposite tendency. Some exceptional observations are also reported. Apart from this, seasonal variation of surface ozone with columnar ozone concentration, NO 2 and temperature is also examined in relation with cloud cover to obtain a possible explanation of this type of variation.

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Relation between tropospheric and stratospheric ozone at Thumba (8.5°N, 77°E) and Bangalore (13°N, 77.5°E), India and its effect on environment

Jana¹,

Goswami

Midya

2012

Indian J Phys

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Effect of cloud on atmospheric ozone formation over Hyderabad (17.27°N, 78.28°E), India

Cited by 6 publications

References 34 publications

Changes in tropospheric ozone concentration over Indo-Gangetic Plains: the role of meteorological parameters

Changes in tropospheric ozone concentration over Indo-Gangetic Plains: the role of meteorological parameters

Variability of surface ozone with cloud coverage over Kolkata, India

Relation between tropospheric and stratospheric ozone at Thumba (8.5°N, 77°E) and Bangalore (13°N, 77.5°E), India and its effect on environment

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