Tree‐Ring Evidence for Solar Radiation Modulation of Sea Surface Temperature–Western Pacific Subtropical High Relationship
年輪証拠：太陽放射による海面水温と西部太平洋亜熱帯高気圧の関係の変調 (AI 翻訳)
Changfeng Sun, Yu Liu, Congxi Fang, Lu Wang, Mengdan Jing, Yang Xu, Zhuoying Li, Huiming Song, Qiufang Cai, Meng Ren, Xuan Wu, Kai Yang, Jinzhao Liu, Qiang Li
🤖 gxceed AI 要約
日本語
本研究は年輪幅と安定同位体から390年間の夏季WPSH強度の復元に成功。1950年以降のWPSH強化と極端現象増加を示す。熱帯海面水温とWPSHの関係は太陽放射によって変調され、将来のWPSHは弱化後強化すると予測。東アジアの防災に重要。
English
This study reconstructs summer WPSH intensity over 390 years using tree-ring width and stable isotopes. It shows WPSH has intensified with increased extremes since 1950s. The relationship between tropical SST and WPSH is modulated by solar radiation. Future projections indicate a weakening then strengthening of WPSH, highlighting the need for disaster preparedness in East Asia.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本を含む東アジアの気候変動適応策に直接関わる研究。WPSHの変動は日本の夏季の天候や災害リスクに影響するため、国土強靱化や防災計画の基礎情報となる。
In the global GX context
This paper provides a long-term perspective on WPSH behavior, crucial for validating CMIP6 models and understanding natural variability. The role of solar radiation adds complexity to future projections under greenhouse warming, relevant for global climate risk assessments.
👥 読者別の含意
🔬研究者:Offers a novel 390-year reconstruction of WPSH and demonstrates non-stationary teleconnections, useful for dynamical climate studies and model evaluation.
🏛政策担当者:Indicates that both extremely strong and weak WPSH events pose risks, emphasizing the need for adaptive policies for weather extremes in East Asia.
📄 Abstract（原文）
The western Pacific subtropical high (WPSH) profoundly influences climate changes and disaster frequencies in the densely populated East Asia. Yet, the mechanisms, drivers, and future changes of WPSH remain unclear. Here the longest annual resolution reconstruction of the summer WPSH intensity is presented using tree‐ring width and stable isotope from the southeastern China. WPSH displays intensified strength and variability since the 1950s, alongside increased extreme events. Tropical sea surface temperature (SST) from the Pacific, Atlantic and Indian Oceans influences WPSH intensity with significant spatial and temporal heterogeneity over the past 390 years. The eastern Pacific tropical SST has the strongest impact, though their relationship is unstable on multi‐decadal scales. Strong solar radiation influences the positive relationship between the eastern Pacific tropical SST and WPSH by modulating their mean intensity or variability. Despite the Coupled Model Intercomparison Project Phase 6 climate models projecting enhanced WPSH under greenhouse warming scenarios, time series prediction indicates that WPSH will weaken before enhancing in the next 50 years, modulated by solar radiation fluctuations. These findings underscore the dual necessity of preparing for natural disasters induced by extremely strong WPSH events and addressing potential climate anomalies arising from extremely weak WPSH conditions in the future.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1029/2025jd045960first seen 2026-06-29 07:59:06
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