関連する実験動画
Updated: Jun 12, 2026

04:35
Comparative Study of Simulation of Temperature Rise in Ring Main Unit
Published on: July 5, 2024
気候変動は,アジアの水塔に影響を及ぼすだろう
Walter W Immerzeel1, Ludovicus P H van Beek, Marc F P Bierkens
1FutureWater, Costerweg 1G, 6702 AA Wageningen, Netherlands. w.immerzeel@futurewater.nl
まとめ
気候変動は,河川の流れと14億人の食糧安全保障に影響を与えています. インダス川とブラーマプトラ川の流域は,水資源の不足により最大のリスクに直面し,何百万人もの人々を脅かしています.
科学分野:
- 水文学 水文学とは
- 気候科学 気候科学
- 食料安全保障 食料安全保障
背景:
- 14億人以上の人々が,インドス,ガンジス,ブラフマプトラ,ヤンツェ,イエローのアジアの大河の水に依存しています.
- 上流の雪と氷の貯蔵は,季節的な水供給に不可欠ですが,気候変動に脆弱です.
研究 の 目的:
- アジアの主要河川流域における溶融水の役割を評価する.
- 気候変動がこれらの地域における水資源と食料安全保障にどの程度影響を与えているかを判断する.
主な方法:
- 河川の流れへの融水の寄与の分析.
- 気候変動の影響モデリング 水資源への影響.
主要な成果:
- 融水はインダス川にとって重要であり,ブラーマプトラ川にとって重要であり,ガンジス川,長江川,黄河川にとってはあまり重要ではない.
- インダス川とブラーマプトラ川の流域は,気候変動による流量減少に最も脆弱である.
- これらの脆弱な盆地では,約6000万人の人々の食料安全保障が脅かされています.
結論:
- 気候変動は,インダス川とブラーマプトラ川の盆地における水資源と食糧安全保障に重大なリスクをもたらしています.
- これらの非常に脆弱な地域には,ターゲットを絞った適応戦略が必要である.
- 融水の大切さの地域的な変動を理解することは,効果的な水管理の鍵です.
関連する概念動画
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.
Responses to Drought and Flooding
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
Hot Weather Concreting
Concreting at elevated temperatures accelerates the hydration process, leading to quicker setting but potentially reducing the long-term strength of the concrete structure. Additionally, low air humidity fosters rapid moisture loss from the concrete, resulting in reduced workability, pronounced plastic shrinkage, and a higher likelihood of crazing.
Mitigating the heat increase in concrete can be economically achieved by shading aggregate stockpiles to prevent heating from solar radiation,...
Mitigating the heat increase in concrete can be economically achieved by shading aggregate stockpiles to prevent heating from solar radiation,...
Adaptations that Reduce Water Loss
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
Effect of Sea Water on Concrete
Concrete exposed to seawater can undergo degradation like the dissolution of ettringite and gypsum, increasing the material's porosity and decreasing its strength. In contrast, the crystallization of salts within the concrete's pores can cause expansion, particularly above the waterline where evaporation occurs. Nonetheless, this expansion only happens when seawater, enabled by the concrete's permeability, manages to infiltrate the structure.
Concrete in areas between tide marks, which undergo...
Concrete in areas between tide marks, which undergo...

