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用多个全球气候模型组合来预测小喜马拉雅山区Diamer区的气候变化预测
Didar Ahmad1, Faridullah Faridullah1, Muhammad Irshad1
1Department of Environmental Sciences, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan.
Environmental science and pollution research international
|December 31, 2024
概括
气候变化正在影响巴基斯坦北部地区,奇拉斯的气温上升,阿斯托尔的气温下降. 未来的预测表明,气候将进一步变暖,降雨模式将发生变化,威胁到生态系统和生计.
科学领域:
- 气候科学 气候科学
- 环境科学 环境科学
- 冰川学的冰川学
背景情况:
- 巴基斯坦北部面临着严重的气候变化影响,影响生态系统和生物多样性.
- 全球气候模型 (GCM) 和代表度路径 (RCP) 是理解未来气候场景的关键工具.
研究的目的:
- 调查巴基斯坦北部地区温度和降水趋势的未来预测.
- 分析历史气候数据,并使用GCM (RCP4.5和RCP8.5) 建模未来气候场景.
主要方法:
- 使用的气候模型相互比较项目和GCM (RCP4.5,RCP8.5).
- 分析了1975-2005年的历史温度和降水数据.
- 短期 (2010-2029) 和中期 (2030-2050) 的气候预测趋势.
主要成果:
- 历史数据 (1975-2005) 显示,奇拉斯的最高温度 (Tmax) 增加了8°C,阿斯托尔的温度下降了8°C.
- 预计Tmax在奇拉斯增加6°C,在巴布萨尔减少2°C (2010-2050年).
- 历史降水量每年在Babusar增加20毫米,在Astore减少40毫米. 未来的预测 (RCP8.5) 显示巴布萨尔的最大降水量为25毫米,阿斯托尔的最低降水量为40毫米. RCP4.5显示35毫米 (Babusar) 和15毫米 (阿斯托雷).
结论:
- 观测和预测的气候变化正在使冰川,雪地和土地利用系统恶化.
- 降水模式的变化 (冬季增加,夏季减少) 导致土地退化,影响森林和水资源.
- 累积的影响加剧了贫困,并引发了人们对该地区长期可持续性的担忧.
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