全球城市活动从COVID-19物理距离限制变化到全球城市活动变化
Srija Chakraborty1, Eleanor C Stokes2, Olivia Alexander3
1Universities Space Research Association, Washington, DC, USA. schakraborty@usra.edu.
Scientific data
|January 17, 2025
概括
在全球范围内,COVID-19大流行改变了人类活动. 卫星夜间照明揭示了城市地区每天的局部变化,为流行后的环境和经济影响研究创建了一个数据集.
科学领域:
- 地球系统科学 地球系统科学
- 环境监测 环境监测
- 社会经济影响分析.
背景情况:
- 随着COVID-19的流行,人类活动发生了广泛的变化,影响了环境和经济.
- 疫情作为一个自然实验来研究全球地球系统中破坏.
- 在全球和地方层面量化这些变化对于科学理解至关重要.
研究的目的:
- 开发一个全球可用的,每日和本地解决的人类活动变化的数据集,在COVID-19大流行期间.
- 利用卫星衍生的夜间灯光来量化非典型的人类活动.
- 支持对人类活动环境和经济影响的流行后研究.
主要方法:
- 在卫星衍生的夜间灯光 (NTL) 上使用机器学习异常检测算法.
- 分析了全球城市地区人类活动的每日变化,大流行后两年.
- 建立了COVID前的基线进行比较,并包括了质量保证措施.
主要成果:
- 在NTL (TRACE-NTL) 数据集中生成了跟踪异常COVID-19诱导的变化.
- 为所有大都会地区提供了首个日常,全球解决COVID-19中断的解决方案.
- 基于夜间光强度的人类活动的量化非典型变化.
结论:
- TRACE-NTL数据集提供了一个独特的资源,用于研究大流行病的多方面的影响.
- 这些数据可以详细分析人类活动的变化如何影响环境系统.
- 促进对全球重大破坏后的社会经济后果和恢复模式的研究.
相关概念视频
Threats to Biodiversity
22.1K
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...
22.1K
Ecological Disturbance
17.0K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
17.0K
Habitat Fragmentation
17.4K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
17.4K
Introduction to Stress and Lifestyle
74
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
74
Insufficient Sleep and Sleep Deprivation
131
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
Sleep deprivation is a more severe form of sleep loss...
131
Lung Capacity
49.3K
The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
49.3K


