相关实验视频
Updated: Jul 26, 2025

06:10
Using Generative Art to Convey Past and Future Climate Transitions
Published on: March 31, 2023
1.0K
自国际地质物理年以来,南极洲的高度和度放大导致的表面变暖
Aihong Xie1, Jiangping Zhu2,3, Xiang Qin1
1State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China.
Scientific reports
|June 12, 2023
概括
在南极冰盖上进行了高度依赖变暖 (EDW) 和度依赖变暖 (LDW) 的研究. EDW比LDW更强大,特定的驱动因素被确定,影响未来的南极气候预测.
科学领域:
- * 大气科学 大气科学
- * 气候科学 气候科学
- * * 冰川学 冰川学
背景情况:
- *高度和高海拔地区经历了放大变暖.
- * 缺乏对南极变暖的海拔和度影响的定量分析.
- *南极冰盖表现出显著的度和高度梯度.
研究的目的:
- * 调查南极冰盖上海拔依赖变暖 (EDW) 和度依赖变暖 (LDW) 的存在和特征.
- * 量化EDW和LDW对南极变暖的合作和个人影响.
- * 确定南极地区EDW的主要驱动因素.
主要方法:
- *使用了ERA5再分析 (1958-2020) 的月度地表空气温度数据.
- *分析了南极冰盖的各种高度和度的温度趋势.
- * 调查了变暖趋势与诸如表面向下长波辐射,特定湿度,云层和云高度等因素之间的关系.
主要成果:
- * EDW 和 LDW 均对南极地区的变暖有合作作用,而 EDW 的作用更为明显.
- *在250米和2500米之间 (冬季除外) 观察到负EDW,在秋季达到峰值.
- * 阴性LDW发生在83°S和90°S之间 (夏季除外).
- * 表面向下波长辐射,受湿度和云的特性影响,是南极EDW的关键贡献者.
结论:
- * EDW和LDW是影响南极变暖的重要现象.
- *面向下方的长波辐射在驱动EDW中起着至关重要的作用.
- *需要进一步的研究,以在各种排放场景下预测未来的南极放大.
相关概念视频
Global Climate Change
24.6K
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.
24.6K
What is Climate?
18.7K
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.
18.7K
Radiation: Applications
1.2K
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
The average...
1.2K
What is Weather?
18.4K
Overview
18.4K
Influence of Earth's Curvature and Atmospheric Refraction on Leveling
155
During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance.
155
Variation in Acceleration due to Gravity near the Earth's Surface
2.4K
An object's apparent weight is its weight measured by a spring balance at its location. It is different from its true weight, the force with which the Earth pulls it, because of the Earth's rotation. Mathematically, an object's apparent weight equals its true weight minus the centripetal force that keeps it in a circular motion along with the Earth's surface every 24 hours.
The difference between the true and apparent weights is proportional to the square of the Earth's...
The difference between the true and apparent weights is proportional to the square of the Earth's...
2.4K

