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在半干旱条件下对六种基于实证质量转移的参考蒸发转化估计模型的性能进行比较

¹Van Vocational School Department of Construction Technology, Yüzüncü Yil (Centennial) University, Van, Turkey.

|December 2, 2024

概括

校准的质量转移模型准确地估计了范湖的参考蒸发转化率 (ET_o). 修改后的方程提供可靠的ET_o数据,对于有效的水资源管理至关重要.

科学领域:

农业用水管理农业用水管理
水文学的水文学
气候学气候学气候学

背景情况:

准确的参考蒸发透气 (ET_o) 对于水资源管理至关重要.
lysimeter 系统提供准确的ET_o,但成本高且劳动密集.
经验模型被广泛用于ET_o估计,但需要区域验证.

研究的目的:

评估六种基于质量转移的模型在范湖微气候中对ET_o估计的性能.
校准这些模型以提高它们在当地条件下的准确性.
评估校准模型作为标准FAO-56 PM方程替代品的适用性.

主要方法:

使用9年 (2012-2020年) 的日常气候数据测试了原始实证方程.
使用线性回归 (微软Excel解答器) 校准模型创建修改的方程.
用2021-2022年气候数据验证了原始和修改的方程,将结果与FAO-56 PM方程进行比较,使用MAE,MAPE,RMSE,NSE和R2.

主要成果:

马林格和达尔顿模型分别在原始和修改形式中表现最好.
修改后的方程通常会产生低于可接受RMSE极限的误差 (<0.50毫米/天-1).
马林格,WMO和罗曼内科的原始方程显示了可接受的性能 (NSE>0.75).

结论:

基于质量转移的修改模型是适用于范湖微气候的FAO-56 PM方程的合适替代方案.
原始模型方程,除了马林格,WMO和罗曼肯科,对于研究区域来说是不可靠的.
校准显著提高了测试ET_o估计模型的准确性.

关键词:

校准校准校准校准校准校准估计模型的估计模型.质量转移是指质量转移.潘曼蒙特利斯与蒙特利斯在一起参考蒸发透气的情况.可靠性分析可靠性分析

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