相关实验视频
Updated: Feb 16, 2026

10:35
A Protocol for Conducting Rainfall Simulation to Study Soil Runoff
Published on: April 3, 2014
21.5K
全球强度-持续时间-频率曲线基于观察到的次日降雨量 (GSDR-IDF)
Amy C Green1, Selma B Guerreiro2, Hayley J Fowler2
1School of Engineering and Tyndall Centre for Climate Change Research, Newcastle University, Newcastle upon Tyne, UK. amy.green3@newcastle.ac.uk.
Scientific data
|February 14, 2026
概括
来自24000多个雨量计的降雨强度-持续时间-频率 (IDF) 曲线的新全球数据集提供了改进的洪水风险评估. 该资源增强了全球的水文建模和气候弹性规划.
科学领域:
- 水文和气候科学 水文和气候科学
- 极端天气事件分析
- 地理空间数据科学数据科学
背景情况:
- 极端降雨事件带来了重大风险,包括洪水和基础设施损坏.
- 这些事件的全球范围评估受到数据限制和方法不一致的阻碍.
- 强度 - 持续时间 - 频率 (IDF) 曲线对于理解雨水极端情况至关重要,但缺乏全球可比性.
研究的目的:
- 开发一个全面的,强度-持续-频率 (IDF) 曲线的全球数据集.
- 解决现有IDF估计数据的数据可用性,质量控制和方法差异的局限性.
- 为各种科学和工程应用提供一个开放,可追溯和可重复的资源.
主要方法:
- 利用全球日下降量数据集 (GSDR),包括超过24000个小时雨量记录.
- 应用了强大的极端值分析,包括单级和区域频率方法.
- 估计多个持续时间 (1-24小时) 和返回周期 (10-100年) 的返回水平,以构建IDF曲线.
主要成果:
- 生成了GSDR-IDF,这是每个雨量表的IDF曲线的全球数据集.
- 该数据集涵盖所有主要气候区域,提供前所未有的全球覆盖范围和精度.
- 提供了对风险评估至关重要的各种回报水平的估计.
结论:
- 全球GSDR-IDF数据集代表了全球IDF估计可访问性和准确性的重大进步.
- 能够进行增强的水文建模,工程设计和洪水风险评估.
- 促进了气候弹性和灾害准备规划的跨学科应用.
相关概念视频
Acid-Base Titration Curves
142.0K
A titration curve is a plot of some solution property versus the amount of added titrant. For acid-base titrations, solution pH is a useful property to monitor because it varies predictably with the solution composition and, therefore, may be used to monitor the titration’s progress and detect its endpoint. Acid-base titration can be performed with a strong acid and a strong base, a strong acid and a weak base, or a strong base and a weak acid.
For a titration carried out for 25.00 mL of...
For a titration carried out for 25.00 mL of...
142.0K
Global Climate Change
29.1K
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.
29.1K
Classical Conditioning in Daily Life
2.4K
Classical conditioning, a fundamental principle of associative learning, explains various phenomena observed in daily life, such as fear development, the placebo effect, taste aversion, and drug habituation. These applications demonstrate the profound impact of associative learning on human behavior and physiological responses.
John B. Watson and Rosalie Rayner famously demonstrated the development of fear through classical conditioning in their experiment with Little Albert. They paired the...
John B. Watson and Rosalie Rayner famously demonstrated the development of fear through classical conditioning in their experiment with Little Albert. They paired the...
2.4K
Sound Intensity
4.9K
The loudness of a sound source is related to how energetically the source is vibrating, consequently making the molecules of the propagation medium vibrate. To measure the loudness of a source, the physical quantity of interest is the intensity. This is defined as the energy emitted per unit of time per unit of area perpendicular to the sound wave's propagation direction. Since the total energy is greater if the source vibrates for a longer duration and over a larger area, dividing the...
4.9K
Frequency-dependent Selection
24.2K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
24.2K
Naturalistic Observations
17.6K
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
17.6K

