Video Experimental Relacionado
Updated: Jan 27, 2026
06:14
Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
Published on: July 30, 2020
5.4K
Empleo de la agrupación K-means para reconstruir elevaciones faltantes de la superficie del agua en modelos digitales
Liming Liu1, Takahiro Koshiba2, Keiko Wada2
1Graduate School of Engineering, Kyoto University, Kyoto 615-8530, Japan.
Water research
|January 25, 2026
Resumen
Este estudio reconstruye datos del Modelo Digital de Elevación (DEM) para mejorar las estimaciones de la elevación de la superficie del agua para una mejor modelización de la escorrentía. El nuevo método mejora las simulaciones hidrodinámicas y la predicción del riesgo de inundaciones urbanas, especialmente donde los datos del DEM son inciertos.
Sus antecedentes:
- Los Modelos Digitales de Elevación (DEM) son cruciales para la modelización hidrodinámica, pero contienen incertidumbres sobre las masas de agua y las riberas.
- Los datos DEM inexactos pueden provocar errores en la estimación de la profundidad de la escorrentía y el almacenamiento fluvial.
Conclusiones:
- El método propuesto de reconstrucción de DEM estima eficazmente las elevaciones de la superficie del agua.
- Este enfoque mejora la precisión de las simulaciones de escorrentía y las evaluaciones del riesgo de inundaciones urbanas.
- Los hallazgos ofrecen información valiosa para estudios hidrológicos en regiones con datos limitados.
Videos de Conceptos Relacionados
03:12Freezing Point Depression and Boiling Point Elevation
39.8K
Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
39.8K
01:20Elevation of Intermediate Points on Vertical Curves
283
Vertical curves are essential in roadway design because they provide smooth transitions between varying roadway grades. Designing vertical curves involves calculating intermediate elevations and identifying the curve's highest or lowest point, which is essential for optimal roadway performance.Intermediate elevations on a vertical curve are determined using the tangent offset method. This method considers the initial elevation at the start of the curve, the grades, and the curve's geometry. The...
283
01:20Cluster Sampling Method
14.3K
Appropriate sampling methods ensure that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
14.3K
01:45Vesicular Tubular Clusters
3.1K
After budding out from the ER membrane, some COPII vesicles lose their coat and fuse with one another to form larger vesicles and interconnected tubules called vesicular tubular clusters or VTCs. These clusters constitute a compartment at the ER-Golgi interface known as ERGIC (Endoplasmic Reticulum Golgi Intermediate Compartment). The ERGIC is a mobile membrane-bound cargo transport system that sorts proteins secreted from ER and delivers them to the Golgi.
With the help of motor proteins such...
With the help of motor proteins such...
3.1K
01:00The Water Cycle
28.2K
The Earth’s hydrosphere includes all of the areas where the storage and movement of water occurs. Since water is the basis of all living processes, the cycling of water is extremely important to ecosystem dynamics.
28.2K
01:23States of Water
56.5K
Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart.
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
56.5K