ThoR: 一个运动依赖的物理信息深度学习框架,带有限制中心的功能连接理论,用于降雨预测
Khang Ta Gia1,2,3, Hoai Tran Van4,5, An Phan Thanh2,3
1Faculty of Computer Science and Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam.
Scientific reports
|November 26, 2025
概括
准确的降雨现在预测是通过ThoR改进的,ThoR是一个基于物理的深度学习框架. 该方法通过将物理定律集成到其模型中,增强了预测,特别是极端天气事件.
科学领域:
- 气象学和大气科学 气象学和大气科学
- 人工智能的人工智能
- 计算物理 计算物理
背景情况:
- 准确的降水现在预测对于极端天气事件的缓解至关重要,特别是随着气候变化.
- 传统的预报方法,如数值天气预报和雷达推断,在短期高分辨率预报方面存在局限性.
- 现在预测的深度学习模型经常产生模糊的结果,缺乏物理一致性.
研究的目的:
- 介绍ThoR,一个新的深度学习框架,用于降雨现在预测.
- 通过使用深度学习来提高降雨现象预测的准确性和物理一致性.
- 解决现有的深度学习方法在现在预测中的局限性,例如模糊预测.
主要方法:
- 开发了ThoR,一个运动依赖的物理信息深度学习框架,具有限制中心的功能连接理论 (TFC).
- 集成的以注意力为中心的时空建模与部分微分方程 (PDEs) 的物理约束.
- 采用了级联分支架构,带有注意力驱动的发生器和无监督的运动场提取模块,通过TFC将导向-扩散方程嵌入到优化目标中.
主要成果:
- ThoR在现实世界雷达数据集上的决定性指标中表现出比现有方法更好的表现.
- 该框架在较长的交付时间和极端天气事件期间表现出特别高的效果.
- 通过ThoR,基于物理的深度学习显示了运营性降水现在预测的巨大潜力.
结论:
- ThoR通过成功地将深度学习与物理约束相结合,在降雨预测方面取得了重大进展.
- 基于物理学的方法提高了预测的准确性和一致性,优于传统和当前的深度学习方法.
- 这一框架突出了基于物理的深度学习的潜力,用于实现准确可靠的降水预测,特别是极端事件.
相关概念视频
Precipitation Processes
4.7K
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...
4.7K
Precipitation Gravimetry
13.2K
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...
13.2K
Precipitation and Co-precipitation
4.0K
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...
4.0K
Relative Motion Analysis using Rotating Axes
865
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
865
Relative Motion Analysis using Rotating Axes-Problem Solving
685
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
Here, in order to determine the magnitude of velocity and acceleration for point...
685
Uniform Depth Channel Flow: Problem Solving
420
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
420


