Significant Association Between Arctic Oscillation and Winter Wildfires in Southern China
Abstract The recent increase of regional wildfire occurrences has been associated with climate change. In this study, we investigated the association between the February to March wildfire points and burned area in the southern region of China (20°N–30°N and 105°E–115°E) and the simultaneous Arctic...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2024-10-01
|
| Series: | International Journal of Disaster Risk Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s13753-024-00589-z |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850162793203892224 |
|---|---|
| author | Meng Meng Daoyi Gong Yunfei Lan Qichao Yao Lamei Shi Zhou Wang |
| author_facet | Meng Meng Daoyi Gong Yunfei Lan Qichao Yao Lamei Shi Zhou Wang |
| author_sort | Meng Meng |
| collection | DOAJ |
| description | Abstract The recent increase of regional wildfire occurrences has been associated with climate change. In this study, we investigated the association between the February to March wildfire points and burned area in the southern region of China (20°N–30°N and 105°E–115°E) and the simultaneous Arctic Oscillation (AO) index during 2001–2022 and 2001–2020, respectively. After removing the El Niño-Southern Oscillation and Indian Ocean Dipole signals, time series of the regional mean fire points and burned area over the study area is significantly correlated with the AO index at − 0.37 and − 0.47, significant at the 0.1 level. Precipitation significantly affects wildfire variations. The positive AO could trigger a southeastward Rossby wave train and induce anomalous cyclone activity approximately located in the area encompassed by 15°N–27°N and 85°E–100°E. This outcome could help to enhance the southern branch trough and results in positive precipitation anomalies in southern China. This increasing moisture is conductive to reducing wildfire risks, vice versa. Our results are potentially useful for strengthening the understanding of the mechanisms of wildfire occurrences in southern China. |
| format | Article |
| id | doaj-art-adbcdf66c940451eb948bc77fbc91caf |
| institution | OA Journals |
| issn | 2095-0055 2192-6395 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Disaster Risk Science |
| spelling | doaj-art-adbcdf66c940451eb948bc77fbc91caf2025-08-20T02:22:28ZengSpringerOpenInternational Journal of Disaster Risk Science2095-00552192-63952024-10-0115582083010.1007/s13753-024-00589-zSignificant Association Between Arctic Oscillation and Winter Wildfires in Southern ChinaMeng Meng0Daoyi Gong1Yunfei Lan2Qichao Yao3Lamei Shi4Zhou Wang5National Institute of Natural Hazards, Ministry of Emergency Management of ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal UniversityState Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal UniversityNational Institute of Natural Hazards, Ministry of Emergency Management of ChinaNational Institute of Natural Hazards, Ministry of Emergency Management of ChinaNational Institute of Natural Hazards, Ministry of Emergency Management of ChinaAbstract The recent increase of regional wildfire occurrences has been associated with climate change. In this study, we investigated the association between the February to March wildfire points and burned area in the southern region of China (20°N–30°N and 105°E–115°E) and the simultaneous Arctic Oscillation (AO) index during 2001–2022 and 2001–2020, respectively. After removing the El Niño-Southern Oscillation and Indian Ocean Dipole signals, time series of the regional mean fire points and burned area over the study area is significantly correlated with the AO index at − 0.37 and − 0.47, significant at the 0.1 level. Precipitation significantly affects wildfire variations. The positive AO could trigger a southeastward Rossby wave train and induce anomalous cyclone activity approximately located in the area encompassed by 15°N–27°N and 85°E–100°E. This outcome could help to enhance the southern branch trough and results in positive precipitation anomalies in southern China. This increasing moisture is conductive to reducing wildfire risks, vice versa. Our results are potentially useful for strengthening the understanding of the mechanisms of wildfire occurrences in southern China.https://doi.org/10.1007/s13753-024-00589-zArctic OscillationClimate changeENSOSouthern China wildfires |
| spellingShingle | Meng Meng Daoyi Gong Yunfei Lan Qichao Yao Lamei Shi Zhou Wang Significant Association Between Arctic Oscillation and Winter Wildfires in Southern China International Journal of Disaster Risk Science Arctic Oscillation Climate change ENSO Southern China wildfires |
| title | Significant Association Between Arctic Oscillation and Winter Wildfires in Southern China |
| title_full | Significant Association Between Arctic Oscillation and Winter Wildfires in Southern China |
| title_fullStr | Significant Association Between Arctic Oscillation and Winter Wildfires in Southern China |
| title_full_unstemmed | Significant Association Between Arctic Oscillation and Winter Wildfires in Southern China |
| title_short | Significant Association Between Arctic Oscillation and Winter Wildfires in Southern China |
| title_sort | significant association between arctic oscillation and winter wildfires in southern china |
| topic | Arctic Oscillation Climate change ENSO Southern China wildfires |
| url | https://doi.org/10.1007/s13753-024-00589-z |
| work_keys_str_mv | AT mengmeng significantassociationbetweenarcticoscillationandwinterwildfiresinsouthernchina AT daoyigong significantassociationbetweenarcticoscillationandwinterwildfiresinsouthernchina AT yunfeilan significantassociationbetweenarcticoscillationandwinterwildfiresinsouthernchina AT qichaoyao significantassociationbetweenarcticoscillationandwinterwildfiresinsouthernchina AT lameishi significantassociationbetweenarcticoscillationandwinterwildfiresinsouthernchina AT zhouwang significantassociationbetweenarcticoscillationandwinterwildfiresinsouthernchina |