相关实验视频
Updated: Jun 26, 2026

08:39
Simulating Temperature in a Soil Incubation Experiment
Published on: October 28, 2022
气候变化和潮间热应力的度模式
Brian Helmuth1, Christopher D G Harley, Patricia M Halpin
1University of South Carolina, Department of Biological Sciences and Marine Sciences Program, Columbia, SC 29208, USA. helmuth@biol.sc.edu
概括
气候变化和潮模式在美国西海岸创造了热点. 北部的潮间地区面临着局部灭绝,原因是极端条件,而不是极端的物种转移.
科学领域:
- 海洋生物学 海洋生物学
- 气候科学是气候科学.
- 海洋学 海洋学 海洋学
背景情况:
- 沿海生态系统面临着复杂的热挑战.
- 西海岸的潮模式与气候相互作用,创造了多样化的热环境.
- 美国北部沿海地区的热压力可能比南部地区更大.
研究的目的:
- 调查气候变化对潮间生物分布的影响.
- 为了确定潜在的潜在潜力.
主要方法:
- 分析气候数据和潮预测.
- 美国西海岸沿线的热应力模式的建模.
- 在极端气候条件下识别时间变化.
主要成果:
- 预计美国北部的沿海地区将成为热带"热点".
- 局部灭绝的可能性更大,而不是对极端的物种转移.
- 在3-5年内,极端气候条件可能会出现在北部地区.
结论:
- 气候变化对潮间生物的影响可能导致局部灭绝.
- 潮的时间和气候相互作用会产生不可预测的热应力.
- 建议对美国北部沿海地区进行紧急监测.
相关概念视频
What is Climate?
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.
Global Climate Change
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.
Responses to Heat and Cold Stress
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
Heating and Cooling Curves
When a substance—isolated from its environment—is subjected to heat changes, corresponding changes in temperature and phase of the substance is observed; this is graphically represented by heating and cooling curves.
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
Thermal Stress
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
Variation of Atmospheric Pressure
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...

