Assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in Northwest China
This study delves into the complex relationship between teleconnection patterns and meteorological drought in Northwest China, highlighting the crucial influence of global circulation indices on regional drought dynamics. By analyzing precipitation and temperature data from 1962 to 2022 using the CN...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-10-01
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| Series: | Big Earth Data |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/20964471.2024.2392448 |
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| author | Akinwale T. Ogunrinde Xue Xian Paul Adigun Ifeoluwa S. Adawa Dan Zhao Zhanghong Xing Igbekoyi J. Temitope |
| author_facet | Akinwale T. Ogunrinde Xue Xian Paul Adigun Ifeoluwa S. Adawa Dan Zhao Zhanghong Xing Igbekoyi J. Temitope |
| author_sort | Akinwale T. Ogunrinde |
| collection | DOAJ |
| description | This study delves into the complex relationship between teleconnection patterns and meteorological drought in Northwest China, highlighting the crucial influence of global circulation indices on regional drought dynamics. By analyzing precipitation and temperature data from 1962 to 2022 using the CN05.1 datasets and incorporating various global circulation indices, the study employs the Standardized Precipitation Evapotranspiration Index (SPEI) to delineate drought conditions. Utilizing the Modified Mann-Kendall test and segmented models for trend and change point detection, along with cross wavelet transforms (XWT) and wavelet coherence (WTC) analysis to examine the impact of 15 global circulation indices, the study uncovers significant spatial and temporal climatic variations. Findings indicate a significant increase in temperature and precipitation, with March-April-May (MAM) season showing pronounced drought severity mainly due to a significant temperature rise with a value of 0.0420 °C/year. Change point analysis reveals pivotal shifts in climate, highlighting the region’s susceptibility to climate change. The study identified strong correlations between drought occurrences and global circulation indices like the Artic Oscillation (AO), Atlantic Multidecadal Oscillation (AMO), Pacific Decadal Oscillation (PDO) and the Southern Oscillation Index (SOI), especially within a 4–8 year timeframe, pointing to the significant role of teleconnections in affecting local drought conditions. These insights are vital for formulating effective drought management and climate adaptation strategies in arid and semi-arid regions, offering valuable guidance for policymakers and researchers focused on improving water resource management and enhancing climate resilience in such vulnerable environments. |
| format | Article |
| id | doaj-art-318d0346eae74cd88f1173f4b479cb78 |
| institution | Kabale University |
| issn | 2096-4471 2574-5417 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Big Earth Data |
| spelling | doaj-art-318d0346eae74cd88f1173f4b479cb782024-12-31T05:18:55ZengTaylor & Francis GroupBig Earth Data2096-44712574-54172024-10-018470373110.1080/20964471.2024.2392448Assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in Northwest ChinaAkinwale T. Ogunrinde0Xue Xian1Paul Adigun2Ifeoluwa S. Adawa3Dan Zhao4Zhanghong Xing5Igbekoyi J. Temitope6Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu, ChinaKey Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu, ChinaDepartment of Engineering Mechanics and Energy, University of Tsukuba, Tsukuba, JapanDepartment of Space Environment, Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Alexandria, EgyptKey Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu, ChinaKey Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu, ChinaDepartment of Remote Sensing and GIS, Federal University of Technology, Akure, NigeriaThis study delves into the complex relationship between teleconnection patterns and meteorological drought in Northwest China, highlighting the crucial influence of global circulation indices on regional drought dynamics. By analyzing precipitation and temperature data from 1962 to 2022 using the CN05.1 datasets and incorporating various global circulation indices, the study employs the Standardized Precipitation Evapotranspiration Index (SPEI) to delineate drought conditions. Utilizing the Modified Mann-Kendall test and segmented models for trend and change point detection, along with cross wavelet transforms (XWT) and wavelet coherence (WTC) analysis to examine the impact of 15 global circulation indices, the study uncovers significant spatial and temporal climatic variations. Findings indicate a significant increase in temperature and precipitation, with March-April-May (MAM) season showing pronounced drought severity mainly due to a significant temperature rise with a value of 0.0420 °C/year. Change point analysis reveals pivotal shifts in climate, highlighting the region’s susceptibility to climate change. The study identified strong correlations between drought occurrences and global circulation indices like the Artic Oscillation (AO), Atlantic Multidecadal Oscillation (AMO), Pacific Decadal Oscillation (PDO) and the Southern Oscillation Index (SOI), especially within a 4–8 year timeframe, pointing to the significant role of teleconnections in affecting local drought conditions. These insights are vital for formulating effective drought management and climate adaptation strategies in arid and semi-arid regions, offering valuable guidance for policymakers and researchers focused on improving water resource management and enhancing climate resilience in such vulnerable environments.https://www.tandfonline.com/doi/10.1080/20964471.2024.2392448Trend analysiswavelet analysisglobal climate indicesdrought indexchange point detection |
| spellingShingle | Akinwale T. Ogunrinde Xue Xian Paul Adigun Ifeoluwa S. Adawa Dan Zhao Zhanghong Xing Igbekoyi J. Temitope Assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in Northwest China Big Earth Data Trend analysis wavelet analysis global climate indices drought index change point detection |
| title | Assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in Northwest China |
| title_full | Assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in Northwest China |
| title_fullStr | Assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in Northwest China |
| title_full_unstemmed | Assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in Northwest China |
| title_short | Assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in Northwest China |
| title_sort | assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in northwest china |
| topic | Trend analysis wavelet analysis global climate indices drought index change point detection |
| url | https://www.tandfonline.com/doi/10.1080/20964471.2024.2392448 |
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