相关实验视频
Updated: Jun 19, 2025

06:10
Using Generative Art to Convey Past and Future Climate Transitions
Published on: March 31, 2023
931
根据CMIP6未来气候情景,葡萄牙的高分辨率表面温度变化
1CESAM - Department of Physics, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal. david.carvalho@ua.pt.
Scientific reports
|July 26, 2024
概括
葡萄牙大陆面临着未来显著的变暖,预计所有地区的温度都将上升. 极端高温事件和热带夜晚将变得更频繁,而日减少,影响各种部门.
科学领域:
- 气候科学 气候科学
- 环境科学 环境科学
- 气象学 天气学
背景情况:
- 了解未来气候变化影响对于适应和减缓战略至关重要.
- 高分辨率的气候预测对于区域影响评估至关重要.
研究的目的:
- 通过使用最新的气候场景,调查葡萄牙大陆未来的温度变化.
- 在不同的气候路径下预测极端温度事件的频率.
主要方法:
- 利用来自IPCC AR6 CMIP6场景的高分辨率未来气候预测.
- 分析了平均,最大和最小温度的预测变化.
- 评估了预计热天,非常热天,热带夜晚和天的频率.
主要成果:
- 预计整个葡萄牙大陆的平均,最高和最低气温将大幅上升,特别是在南中部内陆地区.
- 在SSP3-7.0下,预计近期变暖为1-2°C. 长期来看,SSP5-8.5预计全球气候变暖将达到2.5-3.5°C.
- 预计热天 (每年35-40天),非常热天 (每年12-15天) 和热带夜晚 (每年50天) 将增加,山区的天将减少.
结论:
- 预计葡萄牙大陆将经历显著的表面温度升高和更高频率的极端温度事件.
- 这些变化对人口,环境,经济和农业等关键活动构成严重风险.
- 这些发现强调了需要采取主动气候适应措施的必要性.
相关概念视频
Temperature Measurement Sites
1.6K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
1.6K
Precipitation Processes
438
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...
438
Precipitation Gravimetry
5.6K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
5.6K
Global Climate Change
24.3K
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.
24.3K
Precipitation and Co-precipitation
1.7K
Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
1.7K
Variation of Atmospheric Pressure
2.1K
Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
2.1K

