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8. Climate Patterns Affecting Cold Season Air Pollution of Ulaanbaatar City, Mongolia.

Author

Sumiya, Erdenesukh, Dorligjav, Sandelger, Purevtseren, Myagmartseren, Gombodorj, Gantulga, Byamba-Ochir, Munkhbat, Dugerjav, Oyunchimeg, Sugar, Munkhnaran, Batsuuri, Bolormaa, and Tsegmid, Bazarkhand

Subjects
AIR pollution, AIR pollution potential, AIR pollutants, TURBULENT mixing, AIR quality, GEOGRAPHY
Abstract

Many studies have been conducted on air pollution in Ulaanbaatar city. However, most have focused on the sources of pollutants and their characteristics and distribution. Although the location of the city subjects it to unavoidable natural conditions where air pollution accumulates during the cold season, nature-based solutions have not yet been considered in the projects implemented to mitigate air pollution levels. Therefore, this study aims to determine the combined influence of geography and atmospheric factors on cold season air pollution. The spatiotemporal variations in the variables were investigated using meteorological observation data from 1991 to 2020 in the different land-use areas. Then, atmospheric stagnation conditions and air pollution potential parameters were estimated from daily radiosonde data. Subsequently, the temporal variations in air pollutants were studied and correlated with estimates of the above parameters. In the Ulaanbaatar depression, the stable cold air lake (colder than −13.5 °C), windless (34–66% of all observations), and poor turbulent mixing conditions were formed under the near-surface temperature inversion layer in the cold season. Moreover, due to the mountain topography, the winds toward the city center from all sides cause polluted air to accumulate in the city center for long periods. Air pollution potential was categorized as very high and high (<4000 m2·s−1), in the city in winter, indicating the worst air quality. Thus, further urban planning policy should consider these nature factors. [ABSTRACT FROM AUTHOR]

Published
2023
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9. Contributors

Author

Adalar, Fatma Zuhal, Akter, Beauty, Alay, Fatma Didem, Allu, Prasada Rao, Al Qadar, Syahrul, Anil, Anaswara, Antoniella, Gabriele, Arifianingsih, Nur Novilina, Azevedo, Luís P., Begum, Kohinoor, Bitterncourt, Paulo, Blasi, Emanuele, Bocharnikova, E., Budihardjo, Mochamad Arief, Chegenizadeh, Amin, Chiti, Tommaso, Citrasari, Nita, de Jesus Alves, Lander, Dominic, Donia, Dorligjav, Sandelger, Elchuri, Sailaja V., Erickson, Larry E., Ernst, Fred Barış, Gaikwad, Kiran Bharat, Goh, Hui Hwang, Gross, Eduardo, Guizar Barajas, Jose D., Hanaseta, Evelyne, Harfadli, Muhammad Ma'arij, Hasan, Nazmul, Haumahu, Syahrul Al-Qadar, Havukainen, Jouni, Ikhlas, Nurani, Jabeen, Meh, Janakiraman, Narayanan, Karabulut, Abdullah İzzeddin, Kondapi, Anand K., Krishna, Amrita, Kumar, Abhay, Kumar, Parth, Kurniatama, Dionisius Veda Priya, Kurniawan, Tonni Agustiono, Kurniawan, Adi, Lagarinhos, Carlos A.F., Liang, Xue, Lim, Jun Wei, Magsar, Amgalan, Mahmood, S. M. Javeed, Matichenkov, V., Matsumoto, Toru, Medrado, Hector Hugo Silva, Muntasir, Fahim, Niyomukiza, John Bosco, Nunes, Fábio Carvalho, Nyam-Osor, Nandintsesteg, Osinde, Anthony, Othman, Mohd Hafiz Dzarfan, Paranavithana, T.M., Parnian, Amir, Porto, Joel Augusto Moura, Prasad, Majeti Narasimha Vara, Puspita, Annisa Sila, Rachman, Indriyani, Ramadan, Bimastyaji Surya, Ratnayake, R.R., Rocha, Josilene da Silva, Sebastian, Abin, Septiariva, Iva Yenis, Shaji, Athulya, Shammi, Mashura, Sharma, Jyoti, Sillman, Jani, Sowrov, Mehedi Hasan, Sultana, Sabrina, Sumiya, Erdenesukh, Suryawan, I. Wayan Koko, Teixeira, Ana Paula de Carvalho, Viana, Marcelo Machado, Warmadewanthi, I.D.A.A., Wasalamuni, W.A.D.D., Waskito, Agung, Widiyanti, Astrini, Wulandari, Marita, Yapıcıoğlu, Pelin Soyertaş, Yazıcı Karabulut, Benan, and Yeşilnacar, Mehmet İrfan

Published
2024
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10. Changes in Water Surface Area of the Lake in the Steppe Region of Mongolia: A Case Study of Ugii Nuur Lake, Central Mongolia

Author

Sumiya, Erdenesukh, primary, Dorjsuren, Batsuren, additional, Yan, Denghua, additional, Dorligjav, Sandelger, additional, Wang, Hao, additional, Enkhbold, Altanbold, additional, Weng, Baisha, additional, Qin, Tianlin, additional, Wang, Kun, additional, Gerelmaa, Tuvshin, additional, Dambaravjaa, Oyunbaatar, additional, Bi, Wuxia, additional, Yang, Yuheng, additional, Ganbold, Byambabayar, additional, Gedefaw, Mohammed, additional, Abiyu, Asaminew, additional, and Girma, Abel, additional

Published
2020
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