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| DOI | 10.1007/s10584-024-03689-3 |
| Variation in fire danger in the Beijing-Tianjin-Hebei region over the past 30 years and its linkage with atmospheric circulation | |
| 发表日期 | 2024 |
| ISSN | 0165-0009 |
| EISSN | 1573-1480 |
| 起始页码 | 177 |
| 结束页码 | 2 |
| 卷号 | 177期号:2 |
| 英文摘要 | It is crucial to investigate the characteristics of fire danger in the Beijing-Tianjin-Hebei (BTH) region to improve the accuracy of local fire danger monitoring, forecasting, and management. With the use of instrumental observation data from 173 national meteorological stations in the BTH region from 1991 to 2020, the fire weather index (FWI) is first calculated in this study, and its spatiotemporal characteristics are analyzed. The high- and low-fire danger periods based on the FWI occur in April and August, respectively, with significant decreasing and increasing trends throughout the BTH region over the past 30 years. Next, the contributions of different meteorological factors to the FWI are quantified via a detrending technique. Most regions are affected by precipitation during the high-fire danger period. Both the maximum surface air temperature (Tmax) and precipitation, however, notably contribute to the FWI trend changes during the low-fire danger period. Then, we assess the linkage with atmospheric circulation. Abundant water vapor from the Northwest Pacific and local upward motion jointly lead to increased precipitation and, as a consequence, a decreased FWI during the high-fire danger period. A lack of water vapor from the boreal zone and local downward movement could cause adiabatic subsidence and hence, amplify the temperature and FWI during the low-fire danger period. In contrast to shared socioeconomic pathway (SSP) 585, in which the FWI in the BTH region exhibits a north-south dipole during the low-fire danger period, SSP245 yields an east-west dipole during the low-fire danger period. This study reveals that there is a higher-than-expected probability of fire danger during the low-fire danger period. Therefore, it is essential to intensify research on the fire danger during the low-fire danger period to improve our ability to predict summer fire danger. |
| 英文关键词 | FWI; Beijing-Tianjin-Hebei region; Trend; Atmospheric circulation; High/low-fire danger period |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:001156664300002 |
| 来源期刊 | CLIMATIC CHANGE
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/301882 |
| 作者单位 | Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Ministry of Natural Resources of the People's Republic of China; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | . Variation in fire danger in the Beijing-Tianjin-Hebei region over the past 30 years and its linkage with atmospheric circulation[J],2024,177(2). |
| APA | (2024).Variation in fire danger in the Beijing-Tianjin-Hebei region over the past 30 years and its linkage with atmospheric circulation.CLIMATIC CHANGE,177(2). |
| MLA | "Variation in fire danger in the Beijing-Tianjin-Hebei region over the past 30 years and its linkage with atmospheric circulation".CLIMATIC CHANGE 177.2(2024). |
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