تقرير
Influence of Synoptic-Dynamic Meteorology on the Long-Range Transport of Indochina Biomass Burning Aerosols
| العنوان: | Influence of Synoptic-Dynamic Meteorology on the Long-Range Transport of Indochina Biomass Burning Aerosols |
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| المؤلفون: | Hsiang-Yu Huang, Sheng-Hsiang Wang, Wei-Xun Huang, Neng-Huei Lin, Ming-Tung Chuang, Arlindo M. da Silva, Chi-Ming Peng |
| المصدر: | Journal of Geophysical Research: Atmospheres. 125(3) |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Geophysics, Environment Pollution |
| الوصف: | Impacts of long-range transported biomass burning aerosols from northern Indochina on regional air quality, atmospheric visibility, and climate effects have been discussed extensively in the literature over the past decade. However, the mechanism between aerosol transport and the low-level jet (LLJ) in synoptic meteorology dynamics (e.g., the frontal system) is still not fully understood. In this study, we present results of aerosol-LLJ interaction based on the National Aeronautics and Space Administration/Modern Era Retrospective-analysis for Research and Application version 2 (NASA/MERRA-2) dataset simultaneous to field campaigns in spring 2013–2015 over Southeast Asia. For linking the atmospheric circulation to aerosol transport, a general meteorological condition favorable for aerosol transport is demonstrated. Biomass burning aerosol accumulation over the source region (i.e., northern Indochina) coincided with weak westerly system over the northern South China Sea, and as the synoptic weather system evolved, the aerosols were transported to downwind regions (i.e., Taiwan and West Pacific) by a cold front and LLJ dynamics. The MERRA-2 reanalysis data show the postcold front accompanied a LLJ stream at approximately 700 hPa (3 km) and accelerated the haze plume transport eastward with a life cycle of approximately 3–5 days, an event that reoccurred multiple times from March to April. Our results indicate that coexistence of LLJ and a South China Sea anticyclone at 700 hPa, which primarily could drive the mechanism behind these transport events. Furthermore, more observational data from Southeast Asia would greatly benefit studies of aerosol-meteorology interactions in the region. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| تدمد: | 2169-8996 2169-897X |
| DOI: | 10.1029/2019JD031260 |
| URL الوصول: | https://ntrs.nasa.gov/citations/20210013336 |
| ملاحظات: | 802678.02.17.01.33 MOST 105-2119-M008-019 MOST 106-2111-M008-008 EPA-105-U1 L1-02-A046 |
| رقم الأكسشن: | edsnas.20210013336 |
| قاعدة البيانات: | NASA Technical Reports |
Full Text Finder | تدمد: | 21698996 2169897X |
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| DOI: | 10.1029/2019JD031260 |