What Distinguishes Summer Extreme Precipitation From Non‐Extreme Precipitation Over the Tibetan Plateau?
Abstract This study focuses on the primary synoptic‐scale patterns and precursors of extreme and non‐extreme precipitation over the Tibetan Plateau (TP). Atmospheric circulation anomalies and their precursors associated with regional extreme precipitation events (REPE) demonstrate distinct precursor...
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| Format: | Article |
| Language: | English |
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Wiley
2024-10-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL111192 |
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| author | Zhiyuan Ding Yao Ha Jingliang Huangfu Zhong Zhong |
| author_facet | Zhiyuan Ding Yao Ha Jingliang Huangfu Zhong Zhong |
| author_sort | Zhiyuan Ding |
| collection | DOAJ |
| description | Abstract This study focuses on the primary synoptic‐scale patterns and precursors of extreme and non‐extreme precipitation over the Tibetan Plateau (TP). Atmospheric circulation anomalies and their precursors associated with regional extreme precipitation events (REPE) demonstrate distinct precursor wave train and heightened intensity than regional non‐extreme precipitation events (non‐REPE). Specifically, REPE over the northwestern TP (NWTP) exhibits a geopotential height anomaly induced by a latitudinal propagating Rossby wave train along 40°N. In contrast, over the southeastern TP (SETP), REPE is characterized by a geopotential height anomaly caused by a northwest‐southeastward propagating Rossby wave train. The ascending motion anomalies of REPE over both NWTP and SETP are primarily attributed to the geostrophic zonal temperature advection, which is significantly stronger during REPE compared to non‐REPE. This finding provides valuable insights for forecasting summer extreme precipitation over TP. |
| format | Article |
| id | doaj-art-2642e6302c38489cba292d2aa5f197aa |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-2642e6302c38489cba292d2aa5f197aa2025-08-20T02:13:43ZengWileyGeophysical Research Letters0094-82761944-80072024-10-015120n/an/a10.1029/2024GL111192What Distinguishes Summer Extreme Precipitation From Non‐Extreme Precipitation Over the Tibetan Plateau?Zhiyuan Ding0Yao Ha1Jingliang Huangfu2Zhong Zhong3College of Meteorology and Oceanography National University of Defense Technology Changsha ChinaCollege of Meteorology and Oceanography National University of Defense Technology Changsha ChinaCenter for Monsoon System Research Institute of Atmospheric Physics Chinese Academy of Sciences Beijing ChinaCollege of Meteorology and Oceanography National University of Defense Technology Changsha ChinaAbstract This study focuses on the primary synoptic‐scale patterns and precursors of extreme and non‐extreme precipitation over the Tibetan Plateau (TP). Atmospheric circulation anomalies and their precursors associated with regional extreme precipitation events (REPE) demonstrate distinct precursor wave train and heightened intensity than regional non‐extreme precipitation events (non‐REPE). Specifically, REPE over the northwestern TP (NWTP) exhibits a geopotential height anomaly induced by a latitudinal propagating Rossby wave train along 40°N. In contrast, over the southeastern TP (SETP), REPE is characterized by a geopotential height anomaly caused by a northwest‐southeastward propagating Rossby wave train. The ascending motion anomalies of REPE over both NWTP and SETP are primarily attributed to the geostrophic zonal temperature advection, which is significantly stronger during REPE compared to non‐REPE. This finding provides valuable insights for forecasting summer extreme precipitation over TP.https://doi.org/10.1029/2024GL111192summer extreme precipitationTibetan Plateauatmospheric circulation anomalyprecursor |
| spellingShingle | Zhiyuan Ding Yao Ha Jingliang Huangfu Zhong Zhong What Distinguishes Summer Extreme Precipitation From Non‐Extreme Precipitation Over the Tibetan Plateau? Geophysical Research Letters summer extreme precipitation Tibetan Plateau atmospheric circulation anomaly precursor |
| title | What Distinguishes Summer Extreme Precipitation From Non‐Extreme Precipitation Over the Tibetan Plateau? |
| title_full | What Distinguishes Summer Extreme Precipitation From Non‐Extreme Precipitation Over the Tibetan Plateau? |
| title_fullStr | What Distinguishes Summer Extreme Precipitation From Non‐Extreme Precipitation Over the Tibetan Plateau? |
| title_full_unstemmed | What Distinguishes Summer Extreme Precipitation From Non‐Extreme Precipitation Over the Tibetan Plateau? |
| title_short | What Distinguishes Summer Extreme Precipitation From Non‐Extreme Precipitation Over the Tibetan Plateau? |
| title_sort | what distinguishes summer extreme precipitation from non extreme precipitation over the tibetan plateau |
| topic | summer extreme precipitation Tibetan Plateau atmospheric circulation anomaly precursor |
| url | https://doi.org/10.1029/2024GL111192 |
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