Showing 141 - 160 results of 185 for search '"troposphere"', query time: 0.05s Refine Results
  1. 141

    Study of seasonal distribution of dust in the Middle East region using CALIOP and MODIS data by Ruhallah Moradhaseli, Ali Bayat, Fateme Radmehri

    Published 2023-09-01
    “…Aerosol optical depth in 550 nm and angstrom exponent measurements with MODIS have been studied with 1-degree resolution for the period 2006-2017 in the middle east. Moreover, tropospheric aerosol optical depth and depolarization ratios measured at 532 nm with CALIOP have been studied for same area and same period of time too. …”
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  2. 142

    Forcing From Lower Thermosphere and Quiet Time Scintillation Longitudinal Dependence by Endawoke Yizengaw, Keith Groves

    Published 2020-11-01
    “…We demonstrated that the postsunset vertical drift enhancement may not always be a requirement for the generation of equatorial plasma bubbles. The tropospheric GWs with a vertical wavelength (4 km < λv < 30 km) can also penetrate to higher altitudes and provide enough seeding to the bottom side ionosphere and elicit density irregularity. …”
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  3. 143

    Quantifying Contributions of External Drivers to the Global Ionospheric State by Xing Meng, Olga P. Verkhoglyadova

    Published 2021-09-01
    “…The solar EUV irradiance and tropospheric deep convection are secondary drivers with comparable contributions at about half of the contribution from migrating tidal sources. …”
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  4. 144

    A Review of Spaceborne High-Resolution Spotlight/Sliding Spotlight Mode SAR Imaging by Baolong Wu, Chengjin Liu, Jianlai Chen

    Published 2024-12-01
    “…The phase errors in high-resolution spaceborne spotlight/sliding spotlight SAR imaging, especially the stop-and-go error, curved orbit error, and tropospheric delay error, are analyzed in detail. Furthermore, the autofocus methods are described. …”
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  5. 145

    Changes in Air Quality during the COVID-19 Lockdown in Singapore and Associations with Human Mobility Trends by Jiayu Li, Federico Tartarini

    Published 2024-12-01
    “…The trends of PM2.5 and NO2 were significantly correlated with mobility data. The NO2 and SO2 tropospheric concentrations and the total aerosol optical depth at 550 nm obtained from satellite data during the lockdown in 2020 were also lower than during the same period in 2019. …”
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  6. 146

    Comparing the Influences on NO<sub>2</sub> Changes in Terms of Inter-Annual and Seasonal Variations in Different Regions of China: Meteorological and Anthropogenic Contributions by Xuehui Bai, Yi Wang, Lu Gui, Minghui Tao, Mingyu Zeng

    Published 2025-01-01
    “…This study employs Kolmogorov–Zurbenko (KZ) filtering and stepwise multiple linear regression to isolate the effects of meteorological conditions on tropospheric NO<sub>2</sub> vertical column densities. …”
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  7. 147

    Aerosol Monitoring over Athens Using Satellite and Ground-Based Measurements by D. G. Kaskaoutis, N. Sifakis, A. Retalis, H. D. Kambezidis

    Published 2010-01-01
    “…The accuracy of retrieval mainly depends on the successful selection of the reference satellite data, namely, an image being least contaminated by tropospheric aerosols.…”
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  8. 148

    Arctic sea ice melting has produced distinct sea ice-atmosphere coupled patterns by Bingyi Wu

    Published 2025-01-01
    “…The previously proposed the tropospheric and stratospheric processes cannot fully explain this Arctic―Eurasia temperature configuration. …”
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  9. 149

    Aerosol Modulation of Ultraviolet Radiation Dose over Four Metro Cities in India by A. S. Panicker, G. Pandithurai, G. Beig, Dongchul Kim, Dong-In Lee

    Published 2014-01-01
    “…This paper discusses the influence of aerosols on UV erythemal dose over four metro cities in India. Tropospheric Emission Monitoring Internet Service (TEMIS), archived UV-index (UV-I), and UV daily erythemal dose obtained from SCIAMACHY satellite were used in this study during June 2004 and May 2005 periods covering four important Indian seasons. …”
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  10. 150

    An examination of changes in autumn Eurasian snow cover and its relationship with the winter Arctic Oscillation using 20th Century Reanalysis version 3 by G. J. Marshall

    Published 2025-02-01
    “…The associated spatial pattern of September tropospheric height anomalies closely matches the positive phase of the western Pacific teleconnection pattern. …”
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  11. 151

    Resolved Convection in Hydrogen-rich Atmospheres by Jacob T. Seeley, Robin D. Wordsworth

    Published 2025-01-01
    “…Guillot coincides with an abrupt change in tropospheric structure. Crossing the “Guillot threshold” in near-surface humidity causes the dry (subcloud) boundary layer to collapse and be replaced by a very cloudy layer with a temperature lapse rate that exceeds the dry adiabatic rate. …”
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  12. 152

    Modified ionosphere delay fitting model with atmosphere uncertainty grids for wide-area real-time positioning by Bobin Cui, Jungang Wang, Pan Li, Jiahuan Hu, Xiang Zuo, Longjiang Tang

    Published 2024-12-01
    “…Meanwhile, two 2° × 2° uncertainty grids, generated from tropospheric and ionospheric delay fitting residuals at 15-min intervals, accurately describe fitting performance in all coverage areas with a maximum of 475 points. …”
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  13. 153

    Inter-Calibration and Limb Correction of FY-3D/E MWTS for Long-Term Gridded Microwave Brightness Temperature Dataset by Xinlu Xia, Mingjian Zeng, Xiaochun Luo, Xiao Shi, Rongsheng Jiang, Xinyi Yuan, Xiaozhuo Sang, Fei Tang, Xu Xu

    Published 2025-01-01
    “…The results showed that the biases of tropospheric channels were stable (within 1 K) and the biases of stratospheric channels were relatively large (over 2 K). …”
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  14. 154

    Retrieval of NO2 Columns by Exploiting MAX-DOAS Observations and Comparison with OMI and TROPOMI Data during the Time Period of 2015–2019 by Ahmad Iqbal, Naveed Ahmad, Hassan Mohy ud Din, Michel Van Roozendael, Muhammad Shehzaib Anjum, Muhammad Zeeshan Ali Khan, Muhammad Fahim Khokhar

    Published 2022-05-01
    “…Abstract Nitrogen dioxide (NO2)—a criteria major air pollutant, is of paramount importance due to its role in atmospheric chemistry and tropospheric ozone formation. Exposure to high concentrations of NO2 has been reported to cause various health issues in humans. …”
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  15. 155

    Nitrogen Dioxide (NO2) Level Changes during the Control of COVID-19 Pandemic in Thailand by Tin Ko Oo, Noppol Arunrat, Praeploy Kongsurakan, Sukanya Sereenonchai, Can Wang

    Published 2021-02-01
    “…The concentrations of tropospheric NO2 were extracted from the Sentinel-5P satellite data. …”
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  16. 156

    Probable Relationship between COVID-19, Pollutants and Meteorology: A Case Study at Santiago, Chile by Giovanni A. Salini, Patricio R. Pacheco, Eduardo Mera, María C. Parodi

    Published 2021-01-01
    “…Abstract We present here a study about the possible spread of covid-19 pandemic between human’s beings through aerosols contained in urban air polluted by respirable particulate matter and tropospheric ozone, as well as the incidence of local meteorology in an area with orographic basin characteristics and in a certain period of time. …”
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  17. 157

    Effect of Lockdown due to COVID-19 on the Aerosol and Trace Gases Spatial Distribution over India and Adjoining Regions by Madineni Venkat Ratnam, Perumal Prasad, Sivan Thankamani Akhil Raj, Ibrahim Hoteit

    Published 2020-10-01
    “…Using Ozone Monitoring Instrument (OMI) satellite measurements, we found a 50–60% reduction in the mean tropospheric columnar Nitrogen dioxide (NO2) and planetary boundary layer Sulphur dioxide (SO2) levels over India and adjoining regions during the lockdown (25 March–7 April 2020) compared to the pre-lockdown periods (8–21 March 2020). …”
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  18. 158

    Comparison of BTX Profiles and Their Mutagenicity Assessment at Two Sites of Agra, India by Vyoma Singla, Tripti Pachauri, Aparna Satsangi, K. Maharaj Kumari, Anita Lakhani

    Published 2012-01-01
    “…In the present study, the concentrations of three volatile organic compounds (VOCs), namely, acronym for benzene, toluene, and xylenes (BTX) were assessed because of their role in the tropospheric chemistry. Two representative sites, a roadside and a petrol pump, were chosen for sample collection. …”
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  19. 159

    Impact of Tibetan plateau warming amplification on the interannual variations in East Asia Summer precipitation by XiaoJing Jia, XinHai Chen, Wei Dong, Hao Ma, JingWen Ge, QiFeng Qian

    Published 2025-01-01
    “…Specifically, positive TA is linked to significant local tropospheric warming, which intensifies and eastward expands the South Asian High, creating a double-gyre meridional circulation over East Asia. …”
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  20. 160