関連する実験動画
Updated: Sep 8, 2025
10:35
A Protocol for Conducting Rainfall Simulation to Study Soil Runoff
Published on: April 3, 2014
21.0K
2023年夏季モンスーンのインドでの極端な降雨イベントのための大気中の水分源のラグランジアン定量化
1Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India.
The Science of the total environment
|September 6, 2025
まとめ
インド・サマー・モンスーン (ISM) の極端な降雨は強くなっています. 2023年の研究では,西インド洋がこれらのイベントに最も多くの水分を供給し,地域のソースの違いを強調しました.
科学分野:
- 気候科学
- 大気科学
- 海洋学
背景:
- インドの夏季モンスーン (ISM) 中の極端な降雨は,重要な気候現象です.
- インド洋は温暖化しており,2023年は記録的な暖かいモンスーン年です
- 2023年には前例のない極端な降雨が発生し,その原因の調査が必要となった.
研究 の 目的:
- 記録的な暑さ2023年のインド・サマー・モンスーンの 極端な降雨の源を定量化するため
- これらの極端な出来事に対する 遠隔と局所的な水分源の貢献を分析する.
- 異常な海面温度 (SST) がモンスーンに及ぼす影響を理解する.
主な方法:
- 3Dラグランジアンフレームワーク (UTrack) を利用して水分源を定量化しました.
- 毎日格子化した降水量データ (1990年−2023年) と毎時間ERA5再分析の気象データを使用した.
- 垂直レベルの水分放出,現実的な垂直混合,および微細なスケールの時間解像度 (0.1h) が組み込まれています.
主要な成果:
- 西インド洋は2023年の極端な降雨に最大の水分貢献者 (33.2%) であった.
- ベンガル湾やガンガ流域のような地元の水源は,総水分の約30%を提供しました.
- 遠隔と局所的な源からの水分貢献の有意な空間的変動が観察されました.
結論:
- 2023年の異常な海面温度は,極端なモンスーンの降雨の激化に影響を与えた可能性があります.
- 極端な出来事における湿度源の行動における地域的な相違が特定されました.
- 地域的な気候モデリングと 極端な降雨の予測を 改善できます
さらに関連する動画
13:27Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface
Published on: June 8, 2015
8.8K
09:55Surface Renewal: An Advanced Micrometeorological Method for Measuring and Processing Field-Scale Energy Flux Density Data
Published on: December 12, 2013
8.8K
関連する概念動画
01:12Precipitation Processes
584
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...
584
01:17Precipitation and Co-precipitation
2.0K
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...
2.0K
01:03Precipitation Gravimetry
7.3K
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...
7.3K
03:11Precipitation of Ions
28.1K
Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
28.1K
01:18Variation of Atmospheric Pressure
2.8K
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...
2.8K
01:21Precipitation Titration Curve: Analysis
1.2K
The precipitation titration curve demonstrates the change in concentration of one reactant with the volume of titrant added. During the titration of chloride ions with silver nitrate, the precipitation titration curve is divided into three regions: before, at, and after the equivalence point. Before the equivalence point, low redissolution of the sparingly soluble silver chloride precipitate gives a low silver ion concentration. However, in the second region, representing the equivalence point,...
1.2K