A large‐scale horizontal routing model to be coupled to land surface parametrization schemes
A large‐scale horizontal routing model to be coupled to land surface parametrization schemes
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DOI：
10.3402/tellusa.v48i5.12200
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发表时间：
1996-10
期刊：
影响因子：
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通讯作者：
D. Lohmann;Ralph Nolte-Holube;E. Raschke
中科院分区：
文献类型：
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作者：
D. Lohmann;Ralph Nolte-Holube;E. Raschke
本文的主要工作是用传递函数对降雨径流过程进行时间序列分析。从那里开始，水平路由模式被构造成耦合到现有的陆面参数化（LSP）方案，提供数值天气预报和大气环流模式中的下边界条件。由于这些模型目前的分辨率为10 km−300 km（我们某种程度上任意定义为“大尺度”），因此假设水平路由过程可以集中为线性时不变系统。虽然土壤的主要物理性质（温度，湿度）和所有的物理过程（分区的能量和水通量）必须由LSP计划表示，耦合与一个简单的路由方案允许直接比较的预测和测量的径流数据作为一个综合的数量和验证工具，大气和LSP模型。路由方案的主要任务是保持水的水平旅行时间内的每个网格框，以及从网格框到网格框耦合模型的一阶，而正确的径流量必须由LSP方案。反演算法还可以直接估算LSP方案应产生的径流量。由于我们不想处理降雪过程，该计划适用于2月至11月。DOI：10.1034/j.1600-0870.1996.t01-3-00009.x
The main focus of this paper is the time series analysis of the precipitation-runoff process with transfer functions. Starting from there, a horizontal routing model is constructed to be coupled to the existing land surface parametrization (LSP) schemes which provide the lower boundary conditions in numerical weather prediction and atmospheric general circulation models. As these models currently have a resolution of 10 km−300 km (what we some kind of arbitrary define as the “large scale”), it will be assumed that the horizontal routing process can be lumped as a linear time invariant system. While the main physical properties of the soil (temperature, moisture) and all physical processes (partition of the energy and water fluxes) have to be represented by an LSP scheme, the coupling with a simple routing scheme allows the direct comparison of predicted and measured streamflow data as an integrated quantity and validation tool for both, the atmospheric and the LSP model. The main task of the routing scheme is to preserve the horizontal travel time of water within each grid box as well as from grid box to grid box in the coupled model to first order, while the correct amount of runoff must be given by the LSP scheme. Inverse calculation also allows the direct estimation of runoff which should have been produced by an LSP scheme. As we don't want to deal with snow processes the scheme is applied from February to November. DOI: 10.1034/j.1600-0870.1996.t01-3-00009.x