DECIPHeR v1: Dynamic fluxEs and ConnectIvity for Predictions of HydRology
DECIPHeR v1: Dynamic fluxEs and ConnectIvity for Predictions of HydRology
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DOI：
10.5194/gmd-12-2285-2019
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发表时间：
2019-06-14
影响因子：
5.1
通讯作者：
Woods, Ross
中科院分区：
文献类型：
--
作者：
Coxon, Gemma;Freer, Jim;Woods, Ross
本文介绍了DECIPHeR（Dynamic fluxEs and ConnectIvity for Predictions of Hydroology），一个新的模型框架，它模拟和预测从小型水源集水区到整个大陆的水文流量。DECIPHeR可以适应特定的水文环境和不同的数据可用性水平。这是一个灵活的模型框架，包括以下能力：（1）通过在任何配置中实施水文响应单元来改变其对空间变异性和水文连通性的表示;（2）通过改变景观不同部分的模型方程和参数来测试汇水行为的不同假设。它具有自动构建功能，允许跨大型模型域快速设置，并且是开源的，以帮助研究人员和/或从业者使用模型。DECIPHeR在英国各地应用，以展示模型框架。它是根据1366个仪表的日流量时间序列进行评估的，用于四个评估指标，以提供模型性能的基准。结果表明，该模型表现良好，在一系列的集水特征，但特别是在英国西部和北部的湿润集水区。未来的模型开发将侧重于向DECIPHeR添加模块，以改善地下水动态和人类影响的表现。
This paper presents DECIPHeR (Dynamic fluxEs and ConnectIvity for Predictions of HydRology), a new model framework that simulates and predicts hydrologic flows from spatial scales of small headwater catchments to entire continents. DECIPHeR can be adapted to specific hydrologic settings and to different levels of data availability. It is a flexible model framework which includes the capability to (1) change its representation of spatial variability and hydrologic connectivity by implementing hydrological response units in any configuration and (2) test different hypotheses of catchment behaviour by altering the model equations and parameters in different parts of the landscape. It has an automated build function that allows rapid set-up across large model domains and is open-source to help researchers and/ or practitioners use the model. DECIPHeR is applied across Great Britain to demonstrate the model framework. It is evaluated against daily flow time series from 1366 gauges for four evaluation metrics to provide a benchmark of model performance. Results show that the model performs well across a range of catchment characteristics but particularly in wetter catchments in the west and north of Great Britain. Future model developments will focus on adding modules to DECIPHeR to improve the representation of groundwater dynamics and human influences.