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First 456 results for ” Takashi Sekiya”

1. Global tropospheric ozone responses to reduced NOx emissions linked to the COVID-19 worldwide lockdowns

   Efforts to stem the transmission of coronavirus disease 2019 (COVID-19) led to rapid, global anci...

   Kazuyuki Miyazaki, Kevin Bowman, Takashi Sekiya, Masayuki Takigawa, Jessica L. Neu, Kengo Sudo, Greg Osterman and Henk Eskes | Journal: Science Advances | Volume: 7 | Year: 2021 | First page: eabf7460 | doi: 10.1126/sciadv.abf7460

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2. A comparison of the impact of TROPOMI and OMI tropospheric NO2 on global chemical data assimilation

   This study gives a systematic comparison of the Tropospheric Monitoring Instrument (TROPOMI) vers...

   Takashi Sekiya, Kazuyuki Miyazaki, Henk Eskes, Kengo Sudo, Masayuki Takigawa, and Yugo Kanaya | Journal: Atmos | Year: 2022 | doi: https://doi.org/10.5194/amt-15-1703-2022

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3. Assessing the relative impacts of satellite ozone and its precursor observations to improve global tropospheric ozone analysis using multiple chemical reanalysis systems

   Chemical reanalysis products have been produced by integrating various satellite observational da...

   Takashi Sekiya, Emanuele Emili, Kazuyuki Miyazaki, Antje Inness, Zhen Qu, R. Bradley Pierce, Dylan Jones, Helen Worden, William Y. Y. Cheng, Vincent Huijnen, Gerbrand Koren | Journal: Atmospheric Chemistry and Physics | Volume: 25 | Year: 2025 | First page: 2243 | Last page: 2268 | doi: https://doi.org/10.5194/acp-25-2243-2025

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4. Impacts of horizontal resolution on global data assimilation of satellite measurements for tropospheric chemistry analysis

   We present the results from a global 0.56°-resolution chemical data assimilation that integrates ...

   Sekiya, T., Miyazaki, K., Ogochi, K., Sudo, K., Takigawa, M., Eskes, H., & Boersma, K. F. | Journal: Journal of Advances in Modeling Earth Systems | Volume: 13 | Year: 2021 | First page: e2020MS002180 | doi: 10.1029/2020MS002180

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5. The worldwide COVID-19 lockdown impacts on global secondary inorganic aerosols and radiative budget

   Global lockdown measures to prevent the spread of the coronavirus disease 2019 (COVID-19) led to ...

   Sekiya T, Miyazaki K, Eskes H, Bowman K, Sudo K, Kanaya Y, Takigawa M. | Journal: Sci Adv. | Volume: 9(30) | Year: 2023 | First page: eadh2688 | doi: 10.1126/sciadv.adh2688

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