相关实验视频
Updated: Jan 10, 2026

12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.4K
基于可变性和极端性的气候变化场景的特征和选择的综合方法
Jaeyoung Kim1, Moon-Hwan Lee1, Jong-Ho Ahn1
1Water Management Division, Land and Environment Research Group, Korea Environment Institute, Sejong, Republic of Korea.
Scientific reports
|November 20, 2025
概括
本研究引入了一种新方法,用于选择最佳的全球气候模型 (GCM) 和共享社会经济路径 (SSP) 组合,用于气候变化影响评估. 该方法简化了复杂的气候数据,有助于选择适合适应战略的GCM-SSP场景.
科学领域:
- 环境科学和气候建模
- 气候变化影响评估 气候变化影响评估
- 数据分析和情景选择.
背景情况:
- 准确评估气候变化对水生环境的影响,需要仔细选择全球气候模型 (GCM) 和共享社会经济途径 (SSP).
- 现有的方法可能无法完全捕捉气候预测中固有的空间,时间和极端变化.
- 需要采用综合方法来简化和有效分析广泛的GCM-SSP组合.
研究的目的:
- 为气候变化影响研究选择最佳的GCM-SSP组合提出一种全新的综合方法.
- 开发一种方法,考虑整个范围的气候预测变化和极端在不同地区和时间尺度.
- 简化高维气候数据的解释,以便在气候适应方面有效地选择场景.
主要方法:
- 开发了一种使用和频率分析的综合方法,将气候指数 (降水量,空气温度) 结合成单一的变化度量.
- 分析了35种GCM-SSP组合,重点关注独特的变化和极端特征.
- 采用了Katsavounidis-Kuo-Zhang算法来排名和选择最小的一组代表性的GCM-SSP组合.
主要成果:
- 确定虽然严重的全球变暖场景往往会增加气候变化和极端,但这种趋势在所有GCM-SSP组合中并不总是一致的.
- 证明综合方法有效地捕捉了广泛的GCM-SSP场景的独特特征.
- 成功将高维气候预测数据缩小到单一维,简化解释和选择.
结论:
- 拟议的综合方法提供了对预测气候的全面了解,支持为各种气候适应战略有效选择GCM-SSP.
- 这些发现扩大了对GCM和SSP的一般见解,强调了需要考虑细微的变化和极端性的必要性.
- 该方法可适应包括除降水和温度以外的其他天气变量,提高其适用性.
相关概念视频
What is Climate?
20.4K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
20.4K
Global Climate Change
28.7K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
28.7K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
270
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
270
Variability: Analysis
427
Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
The range is a simple measure of variability, indicating the difference between the highest and...
The range is a simple measure of variability, indicating the difference between the highest and...
427
What is Weather?
19.6K
Overview
19.6K
Precipitation Processes
4.7K
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
4.7K

