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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Urban aerosol, its radiative and temperature effect using COSMO-ART model and measurements in a large megacityтезисы доклада
- Авторы: Chubarova N., Androsova E., Kirsanov A., Varentsov M., Rivin G.
- Сборник: 22th AeroCom and the 11th AeroSAT workshops October 16 – 20 2023
- Тезисы
- Год издания: 2023
- Первая страница: 13
- Аннотация: For evaluation of urban aerosol over the Moscow megacity we used COSMO-ART model with TERRA_URB parameterizationwhich allows taking into account the urban canopy effects at 2 km grid spacing as well as modified CAMS/ECLIPSEemissions. We obtained sensitivity of radiation and meteorological fields to various scenarios of urban emissions. Testingwere fulfilled against the data of Mosecomonitoring Agency and the AERONET network dataset at the MSU MeteorologicalObservatory. Depending on emission rates the urban aerosol optical thickness provided negative effective radiativeforcing of about 0.9-3.4 Wm-2 for weakly absorbing aerosol at TOA, while its estimates for highly absorbing aerosol onthe contrary were positive (up to +2.5 Wm-2). The air temperature at 2 m decreases with the increase of both weaklyand highly absorbing aerosols at different emission rates. This atmospheric cooling partially compensates for the urbanheat island during daytime: the maximum temperature decrease due to aerosol reaches 0.5°C, while the temperatureincrease due to the TERRA_URB scheme for corresponding day-time conditions is 1.5°C. The composite maps of urbanaerosol optical depth, radiative and temperature effects have revealed their localization over the central city areaproviding a growth in the atmospheric absorption up to 5 Wm-2.The work was supported by the Ministry of Educationand Science of the Russian Federation grant No. 075-15-2021-574
- Добавил в систему: Шувалова Юлия Олеговна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | aerocom2023_abstracts_.pdf | aerocom2023_abstracts_.pdf | 283,2 КБ | 24 октября 2023 [khlestova] |