揭示了最有效的模型,从多功能水文模型中预测溪流流动能力
Goshu Wubu1, Bogale Gebremariam Neka1, Tarun Kumar Lohani2
1Faculty of Hydraulics and Water Resources Engineering, Arba Minch Water Technology Institute, Arba Minch University, P.O. Box 21, Arba Minch, Ethiopia.
概括
参数有效分布 (PED) 模型最好预测埃塞俄比亚Koga流域的流量. 这一发现有助于可持续的水资源管理和农业规划.
科学领域:
- 水文学的水文学
- 水资源管理 水资源管理
- 环境建模环境建模
背景情况:
- 精确的流量预测对于水资源管理,洪水控制和农业至关重要,特别是在雨水地区.
- 评估不同的水文模型对于选择特定流域最有效的工具至关重要.
研究的目的:
- 评估和比较四种水文模型的流量预测准确度:参数-高效分布 (PED),Hydrologiska Byråns Vattenbalansavdelning (HBV),水文工程中心-水文建模系统 (HEC-HMS) 和土壤和水评估工具 (SWAT).
- 确定最适合在埃塞俄比亚Koga流域进行流量预测的模型,以支持水资源规划.
主要方法:
- 该研究涉及校准和验证四种水文模型,使用来自Koga流域的观察到的每日流量数据.
- 对1997-2006年期间进行了校准,对2007-2011年进行了验证.
- 使用诸如确定系数 (R2),纳什-萨特克利夫效率 (NSE),根平均平方误差 (RMSE) 和偏差百分比 (PBIAS) 等指标来评估模型性能.
主要成果:
- 在校准过程中,PED模型表现出最佳性能,R2=0.79和NSE=0.782.
- 在验证期间,PED继续表现出色,R2=0.70和NSE=0.72.
- SWAT倾向于模拟更高的流量,HEC-HMS高估流量,HBV和SWAT在验证期间预测最小的流量.
结论:
- 参数有效分布 (PED) 模型被确定为最适合的水文模型,用于Koga流域的流量预测,因为它的性能一致.
- 该研究的结果为选择适当的水文模型提供了有价值的指导,以加强水资源规划和管理策略.
相关概念视频
Stereotype Content Model
15.5K
The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
15.5K
Molecular Models
43.9K
Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
43.9K
Predicting Molecular Geometry
46.1K
VSEPR Theory for Determination of Electron Pair Geometries
46.1K
The Bohr Model
81.1K
Following the work of Ernest Rutherford and his colleagues in the early twentieth century, the picture of atoms consisting of tiny dense nuclei surrounded by lighter and even tinier electrons continually moving about the nucleus was well established. This picture was called the planetary model since it pictured the atom as a miniature “solar system” with the electrons orbiting the nucleus like planets orbiting the sun. The simplest atom is hydrogen, consisting of a single proton as the...
81.1K
Prediction Intervals
3.4K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
3.4K
Pharmacodynamic Models: Direct Effect Model and Indirect Response Model
2
Pharmacodynamic models are essential tools in understanding the relationship between drug concentrations and their effects on biological systems. By characterizing the dynamics of drug action, these models guide dose selection, optimize therapeutic efficacy, and inform the development of new drugs. Two major classes of pharmacodynamic models include direct effect and indirect response models.Direct Effect ModelsDirect effect models describe the immediate relationship between drug concentration...
2


