揭示了印度喜马尔邦的降雨量及其度
1Department of Geography, Kurukshetra University, Kurukshetra, 136119, Haryana, India.
Environmental science and pollution research international
|April 15, 2025
概括
希马查尔邦的降雨量显示,年降雨量减少,但夏季降雨量增加. 研究揭示了趋势,表明极端季风事件的可能性更高,这对于洪水和干旱缓解战略至关重要.
科学领域:
- 气候学 气候学 气候学
- 水文学的水文学
- 环境科学 环境科学
背景情况:
- 降水度研究对于了解山区降雨模式和极端事件至关重要.
- 喜马拉雅山脉西北部的一个关键州 - - 喜马拉雅邦 (Himachal Pradesh) 经历了相当大的降雨变化.
研究的目的:
- 分析1951年至2020年在希马查尔邦的降水趋势和度.
- 用度指数 (CI) 和降水度指数 (PCI) 来评估每日和每月的降水度.
主要方法:
- 利用印度气象局 (IMD) 的格式降雨数据 (0.25° × 0.25°).
- 每日度指数 (CI) 和每月降水度指数 (PCI) 为不同季节计算.
主要成果:
- 观察到年度和季风降水量减少,夏季降水量显著增加.
- 每日降水度 (CI) 在每年较低的海拔处较高. 季风季节显示最低的CI (0.55) 呈现上升趋势,而季风后季节显示最高的CI (0.76).
- 月度降水度 (PCI) 在季风中最低 (9.7) 呈现积极趋势,夏季最高 (17.1) 呈现下降趋势.
结论:
- CI和PCI的趋势表明极端降水事件的可能性增加,特别是在季风季节.
- 这些发现对于在喜马拉雅地区制定有效的洪水和干旱减缓战略至关重要.
- 通知风险降低经理和政策制定者,以应对灾害的准备.
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