相关实验视频
Updated: May 17, 2025

06:27
Simulating Impacts of Ice Storms on Forest Ecosystems
Published on: June 30, 2020
6.9K
在气候变化中,风艾达的停电热浪复合风险在不断变化的气候中存在
Kairui Feng1,2,3, Ning Lin4, Avantika Gori1,5
1Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, USA.
Nature communications
|May 15, 2025
概括
气候变化显著增加了复合热带气旋 (TC) 和热浪事件造成广泛停电的风险. 路易斯安那州在高排放情景下,到2100年面临这样的风险增加17倍.
科学领域:
- 气候科学 气候科学
- 环境科学 环境科学
- 风险评估 风险评估
背景情况:
- 热带气旋 (TCs),停电和热浪造成的复合风险在气候变化中了解得很少.
- 美国路易斯安那州很容易受到这些相互关联的极端天气事件的影响.
研究的目的:
- 为了评估路易斯安那州历史和未来的复合TC - 停电 - 热浪风险.
- 在不同的气候变化情景下预测风险变化 (SSP5-8.5和SSP2-4.5).
主要方法:
- 利用了TCs,海平面上升和热浪的预测.
- 采用电力系统弹性建模来评估复合风险.
- 分析了类似于艾达风的事件的回归期.
主要成果:
- 类似艾达风的事件 (3500万个客户停电时间和热浪暴露时间) 的回归期预计将从278年 (1980-2005) 减少到16.2年 (2070-2100) 在SSP5-8.5.5下.
- 在SSP2-4.5下,回报期减少到23.1年.
- 热浪的加剧是主要的驱动因素,其次是TC活动的增加.
结论:
- 气候变化大大提高了TC-停电-热浪复合事件的风险.
- 调查结果强调,迫切需要采取气候适应战略,以提高电力系统的弹性.
相关概念视频
Global Climate Change
24.0K
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.
24.0K
What is Climate?
18.1K
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.
18.1K
What is Weather?
17.9K
Overview
17.9K
Hot Weather Concreting
51
Concreting at elevated temperatures accelerates the hydration process, leading to quicker setting but potentially reducing the long-term strength of the concrete structure. Additionally, low air humidity fosters rapid moisture loss from the concrete, resulting in reduced workability, pronounced plastic shrinkage, and a higher likelihood of crazing.
Mitigating the heat increase in concrete can be economically achieved by shading aggregate stockpiles to prevent heating from solar radiation,...
Mitigating the heat increase in concrete can be economically achieved by shading aggregate stockpiles to prevent heating from solar radiation,...
51
Threats to Biodiversity
22.0K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.0K
Homeostatic Imbalances in Body Temperature
75
Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
75

