RETRACTED: Seasonal correlation of aerosols with soil moisture, evapotranspiration, and vegetation over Pakistan using remote sensing

Heliyon, Год журнала: 2023, Номер 9(10), С. e20635 - e20635

Опубликована: Окт. 1, 2023

Aerosols have a severe impact on the Earth's climate, human health, and ecosystem. To understand impacts of aerosols ecosystem we must need to variability their optical properties. Therefore, used Aqua-MODIS retrieved aerosol depth (AOD) (550 nm) Angstrom exponent (AE) (440/870) data analyze Spatio-temporal seasonal relationship with different meteorological parameters over Pakistan from 2002 2021. High (>0.5) AOD values were observed during summer season low (<0.8) in spring season. AE be high (>1) northern regions indicating dominance fine mode particles winter Moreover, showed positive correlation Relative Humidity (RH), Evapotranspiration, Wind speed (WS), Temperature. On other hand, it negative Soil moisture (SM), Normalized difference vegetation index (NDVI), precipitation Pakistan. considering outcomes this study will help policymakers spatiotemporal parameters.

Язык: Английский

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Impact of meteorological parameters on aerosol optical depth and particulate matter in Lahore

Acta Geophysica, Год журнала: 2024, Номер 72(2), С. 1377 - 1395

Опубликована: Фев. 19, 2024

Язык: Английский

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Identifying the natural and anthropogenic drivers of absorbing aerosols using OMI data and HYSPLIT model over South Asia

Air Quality Atmosphere & Health, Год журнала: 2023, Номер 16(12), С. 2553 - 2577

Опубликована: Сен. 5, 2023

Abstract Aerosols absorption contributes significantly to the total radiative effects of aerosols and so an important component forcing estimates. Therefore, this study explores spatiotemporal distribution ultraviolet aerosol index (UVAI), future trends, potential sources absorbing their relationship with temperature, wind speed, precipitation ozone column using Ozone Monitoring Instrument retrieved UVAI HYSPLIT model over South Asia during October 2004 March 2022. The mean within ranges 0.56–1.62 are observed Eastern Southern Pakistan Northern India associated dust biomass burning aerosols. interannual variations in show that values increases from 1.73 3.11 2018–2021 Indo-Gangetic Plain. Contrary this, < 0 is along Karakorum Himalaya range 2005–2021 indicating presence non-absorbing interaannual U VAI reveal highest 0.64 December followed by 0.51 July Asia. Seasonally, shows increasing trend at rate 0.9064 DJF −1 , 0.3810 JJA 0.2707 SON 0.0774 MAM A positive correlation 0.56 between speed 0.43 India. 0.1409, 0.1124, 0.1224, 0.1015, 0.1242 0.2054 per year Lahore, Karachi, Kanpur, New-Delhi, Varanasi, Dhaka maximum 5.55, 4.47, 4.51, 4.99, 4.61 4.65 respectively period. anthropogenic productivity analysis reveals primary industry secondary lowering whereas tertiary industry, energy consumption gross domestic products increase loading Moreover, cluster further localized trans-boundary selected cities.

Язык: Английский

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Spatiotemporal covariability between air pollution and meteorological variables over Khyber Pakhtunkhwa, Pakistan

Environmental Monitoring and Assessment, Год журнала: 2025, Номер 197(4)

Опубликована: Март 21, 2025

Язык: Английский

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Source characteristics of Non-Refractory Particulate Matter (NR-PM1) using High-Resolution Time-of-Flight Aerosol Mass Spectrometric (HR-ToF-AMS) measurements in the urban industrial city in India

Atmospheric Environment, Год журнала: 2025, Номер unknown, С. 121186 - 121186

Опубликована: Март 1, 2025

Язык: Английский

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Variation of aerosol optical and physical properties and their impact on rainfall over Indo-Gangetic Basin

Meteorology and Atmospheric Physics, Год журнала: 2025, Номер 137(3)

Опубликована: Апрель 7, 2025

Язык: Английский

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Assessment of nighttime air quality over an urban location in Indo-Gangetic plain using remote sensing observations

Atmospheric Pollution Research, Год журнала: 2023, Номер 15(2), С. 101982 - 101982

Опубликована: Ноя. 2, 2023

Язык: Английский

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An investigation of nighttime variability in air quality of Naples (Italy) using wavelet coherence

Air Quality Atmosphere & Health, Год журнала: 2023, Номер 17(2), С. 231 - 243

Опубликована: Окт. 4, 2023

Язык: Английский

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Analysis of nighttime aerosols and relation to covariates over a highly polluted sub‐Saharan site using Mann–Kendall and wavelet coherence approach

Journal of Environmental Quality, Год журнала: 2024, Номер 53(2), С. 162 - 173

Опубликована: Янв. 31, 2024

Abstract High emissions of aerosols and trace gases during nighttime can cause serious air quality, climate, health issues, particularly in extremely polluted cities. In this paper, an effort has been made to examine the variations over a sub‐Saharan city Ilorin (Nigeria) nighttime. We have used Aerosol Robotic Network data aerosol optical depth (AOD) at 500 nm, Angstrom exponent (AE) (440/870), precipitable water (WVC). Both AE WVC showed decreasing trend −0.0012% −0.0010% per year, respectively. also analyzed carbon monoxide (CO), methane (CH 4 ) , ozone (O 3 from Atmospheric Infrared Sounder subtypes CALIPSO (Cloud‐Aerosol Lidar Pathfinder Satellite Observation). AOD, AE, average values are found be 0.64 ± 0.33, 0.74 0.24, 3.40 0.97, As result northeasterly winds carrying Saharan dust dry season, greatest value AOD (1.29) was observed February. Desert (37.63%) were most prevalent type, followed by mixed (44.15%). Winds height 1500 m above ground level likely transporting Ilorin. images revealed that Ilorin's atmosphere contained dust, continental, clean maritime, on high days. The National Oceanic Administration's vertical sounding profiles presence caused inversion layer trapping pollution. Average concentrations CO, O CH measured 127 18, 29.7 2.1, 1822.6 12.7 ppbv, wavelet coherence spectra exhibited significant quasi‐biannual quasi‐annual oscillations statistically levels.

Язык: Английский

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Analysis of nighttime aerosols and relation to covariates over a highly polluted sub- Saharan site using wavelet coherence approach

Research Square (Research Square), Год журнала: 2023, Номер unknown

Опубликована: Июль 21, 2023

Abstract High emissions of aerosols and trace gases during nighttime can cause serious air quality, climate, health issues, particularly in extremely polluted cities. In this paper, an effort has been made to examine the variations over a sub-Saharan city Ilorin (Nigeria) nighttime. We have used Aerosol Robotik Network data aerosol optical depth at 500 nm (AOD), Angstrom Exponent (440/870) (AE) precipitable water (WVC). also analyzed CO, CH 4 O 3 from Atmospheric Infrared Sounder (AIRS), subtypes CALIPSO. AOD, AE, WVC average values are found be 0.64 ± 0.33, 0.74 0.24, 3.40 0.97, respectively. As result northeasterly winds carrying Saharan dust dry season, greatest value AOD was discovered February. Desert (37.63%) were most prevalent type, followed by mixed (44.15%). Winds height 1500 m AGL likely transporting Ilorin. CALIPSO images revealed that Ilorin's atmosphere contained dust, continental, clean maritime, on high days. The NOAA's vertical sounding profiles showed presence caused inversion layer trapping pollution. Average concentrations measured 12718 ppbv, 29.72.1 1822.612.7 wavelet coherence spectra exhibited significant quasi-biannual, quasi-annual oscillations statistically level.

Язык: Английский

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