Bibliographic Details
| Title: |
Decadal variability of precipitation over the Tibetan Plateau modulated by the 11-year solar cycle over the past millennium |
| Authors: |
Ying Hu, Weiyi Sun, Jian Liu, Deliang Chen, Liang Ning, Zhenghan Peng |
| Source: |
Frontiers in Earth Science, Vol 11 (2023) |
| Publisher Information: |
Frontiers Media S.A., 2023. |
| Publication Year: |
2023 |
| Collection: |
LCC:Science |
| Subject Terms: |
Tibetan Plateau, decadal variability of precipitation, 11-year solar cycle, Tibetan Plateau-Indian Ocean thermal contrast, South Asian High, Pacific Decadal Oscillation, Science |
| More Details: |
Introduction: Knowledge of precipitation over the Tibetan Plateau, often referred to as the “Asian water tower”, is crucial for water resource management, infrastructure planning, and disaster mitigation. However, the decadal variability of Tibetan Plateau precipitation in response to the 11-year solar cycle remains unknown.Methods: Here, we used observational data obtained between 1901 and 2013, together with proxy-based reconstructions of the past five centuries, and discovered a notable summer wet condition over the central‒southern Tibetan Plateau, accompanied by a dry condition over the southeastern Tibetan Plateau, during peaks in the 11-year solar cycle. Using an ensemble mean of four solar-only sensitivity experiments from the Community Earth System Model Last Millennium Ensemble (CESM‒LME), we further demonstrated that the 11-year solar cycle can induce this anomalous pattern of a wet central‒southern and dry southeastern Tibetan Plateau.Results and discussion: The modeling results indicated that, under a solar maximum, a substantial surface warming occurs over the Asian continent, especially the Tibetan Plateau region; this causes an anomalous Tibetan Plateau–Indian Ocean thermal contrast, which enhances the Indian summer monsoon. The additional Tibetan Plateau heating also enhances and causes a northward shift of the South Asian High, which further intensifies the Indian summer monsoon. The enhanced Indian summer monsoon transports water vapor to the northern Indian continent, which rises upon reaching the central‒southern Tibetan Plateau, substantially increasing precipitation. Meanwhile, a negative Pacific Decadal Oscillation-like sea surface temperature pattern occurs under a solar maximum, leading to a large-scale anticyclonic anomaly over the Yangtze River basin, southeastern Tibetan Plateau, and southern Japan, substantially decreasing precipitation in these regions. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2296-6463 |
| Relation: |
https://www.frontiersin.org/articles/10.3389/feart.2023.1137205/full; https://doaj.org/toc/2296-6463 |
| DOI: |
10.3389/feart.2023.1137205 |
| Access URL: |
https://doaj.org/article/e823a604403c442183045be9b643b858 |
| Accession Number: |
edsdoj.823a604403c442183045be9b643b858 |
| Database: |
Directory of Open Access Journals |
