相关实验视频
Updated: Jul 5, 2026

06:10
Using Generative Art to Convey Past and Future Climate Transitions
Published on: March 31, 2023
在北大西洋部门推进十年级气候预测
N S Keenlyside1, M Latif, J Jungclaus
1Leibniz Institute of Marine Sciences, Düsternbrooker Weg 20, D-24105 Kiel, Germany. nkeenlyside@ifm-geomar
Nature
|May 3, 2008
概括
十年气候预测仅使用海面温度 (SST) 观测得到改善. 该方法预测,由于北大西洋和太平洋自然气候变化,全球变暖会暂时暂停.
科学领域:
- 气候科学是气候科学.
- 海洋学 海洋学 海洋学
- 气象学 天气学
背景情况:
- 北大西洋气候在十年时间尺度上的波动对社会产生了重大影响,包括风活动和区域温度/降雨变化.
- 预测这些多十年的变化需要了解海洋的当前状态,但缺乏地下观测限制了预测的准确性.
- 海洋表面温度 (SST) 观测为改善十年气候预测提供了潜在的途径.
研究的目的:
- 开发和测试一种简化方法,仅使用SST观测进行十年气候预测.
- 评估这种基于SST的方法对预测技能的影响,而不是使用不完整的海洋状态知识.
- 预测未来十年的气候状况,同时考虑自然变化和人为强迫.
主要方法:
- 利用气候模型进行回顾性十年预测.
- 采用一种新的方法,仅依靠海面温度 (SST) 观测来限制模型.
- 综合内部自然气候变化与预测未来的人为强迫的预测.
主要成果:
- 使用SST观测时,预测技能显著提高,特别是在北大西洋和热带太平洋,使用SST观测时.
- 预计大西洋南部翻转循环在未来十年将减弱至长期平均值.
- 预计北大西洋SST和欧洲/北美表面温度将略有降温,热带太平洋SST的变化最小.
结论:
- 这些发现表明,使用以SST为重点的简化方法进行常规的十年气候预测的可行性.
- 北大西洋和热带太平洋的自然气候变化可能暂时抵消人为变暖,可能会导致未来十年全球表面温度的平原.
- 这项研究强调了海洋表面条件在理解和预测十年气候变化的重要性.
相关概念视频
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.
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.
Microbes and Climate Change
Microorganisms are pivotal agents in Earth's biogeochemical cycles, significantly influencing climate dynamics through their metabolic activities. These microbes modulate the levels of key greenhouse gases by both contributing to and helping mitigate climate change.Microbial Contributions to Greenhouse Gas EmissionsRising global temperatures accelerate microbial metabolism, which, in turn, speeds up the decomposition of organic matter. This process releases carbon dioxide (CO₂) through...
Precipitation Processes
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...
What is Weather?
Overview
Precipitation and Co-precipitation
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...