对印度热带河流盆地的非静止气候趋势的时空变化识别和分析
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Updated: Jun 21, 2025

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Spatial Temporal Analysis of Fieldwise Flow in Microvasculature
Published on: November 18, 2019
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Shubham Dixit1, Kamlesh K Pandey1
1Department of Civil Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, Uttar Pradesh, India.
Journal of environmental management
|July 5, 2024
概括
气候变化正在改变印度克里希纳河流域的降雨和温度模式. 分析显示较少,更强烈的降雨事件和温度上升,需要适应性水资源管理.
科学领域:
- 水文学和气候学
- 环境科学 环境科学
- 农业科学 农业科学
背景情况:
- 非静止的气候行为挑战了已建立的水文和农业系统.
- 了解长期气候趋势对于管理水资源和农业实践至关重要.
- 克里希纳河流域面临由于气候变化的干扰.
研究的目的:
- 调查克里希纳河流域气候变量中的长期趋势和非静止性.
- 通过使用先进的统计方法,识别降雨和温度的显著和隐藏的趋势.
- 为应对气候变化的适应性管理策略提供见解.
主要方法:
- 采用修改后的曼-肯德尔 (MMK),启动后的曼-肯德尔 (BMK) 和Sen的斜率估计器进行趋势分析.
- 利用创新趋势分析 (ITA) 发现隐藏的趋势和潜在的气候变化.
- 应用静止性测试,包括增强的迪基-富勒 (ADF),菲利普斯-佩伦 (PP),和Kwiatkowski-菲利普斯-施密特-Shin (KPSS) 极端降雨分析.
主要成果:
- 观测到近50%的盆地每年降雨量增加,加上最高气温上升.
- 确定了一个季节性转变,冬季/季风前降雨量减少,季风/季风后降雨量增加.
- 检测到强化降雨事件 (更高的简单每日强度指数),尽管降雨天数较少,并且日间温度范围 (DTR) 显著增加.
结论:
- 气候变化明显改变了水文模式,并在克里希纳河流域增加了温度变化.
- 该研究强调了传统方法检测所有气候趋势的不足,强调了ITA的实用性.
- 适应性水资源管理策略对于减轻观察到的气候非静止性对农业,基础设施和人类安全的不利影响至关重要.
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