Comparison of three land-surface schemes with the Fourier amplitude sensitivity test (FAST)
Comparison of three land-surface schemes with the Fourier amplitude sensitivity test (FAST)
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DOI：
10.1034/j.1600-0870.1998.t01-2-00005.x
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发表时间：
1998-05-01
影响因子：
2
通讯作者：
Avissar, R
中科院分区：
文献类型：
--
作者：
Rodriguez-Camino, E;Avissar, R
本文探讨了在陆-气相互作用动力学（LAID）、土壤-生物圈-大气相互作用（ISBA）和生物圈-大气传输方案（BATS）中起关键作用的陆面参数。傅立叶振幅灵敏度测试（FAST）用于该目的。该检验估计了模型输入参数对地表热通量方差的相对贡献。这一分析表明，对于所考虑的三个方案，四个参数可以解释在广泛的环境条件下的地表热通量的变化。土壤湿度对热通量的影响起主导作用。粗糙长度是影响动量通量的最重要的参数。叶面积指数，植被覆盖的土地，和质地，主要是在裸地，也有显着的影响通量。粗糙度对感热通量的影响通常比对潜热通量的影响更大，并且在稳定大气条件下最为重要。土壤湿度和植被参数是浮力条件下的主导参数。
This paper explores which are the land-surface parameters playing a key role in three surface schemes, namely the land-atmosphere interactive dynamics (LAID), the interaction soil-biosphere-atmosphere (ISBA) and the biosphere-atmosphere transfer scheme (BATS). The Fourier amplitude sensitivity test (FAST) was used for that purpose. This test estimates the relative contribution of model input parameters to the variance of surface heat fluxes. This analysis demonstrates that, for the three considered schemes, four parameters can explain most of the variance of surface heat fluxes under a broad range of environmental conditions. Soil wetness plays a predominant role for the heat fluxes. Roughness length is the most important parameter for the momentum flux. Leaf area index, in vegetated land, and texture, mainly in bare land, also have a significant impact on the fluxes. Roughness length is usually more important for sensible heat flux than for latent heat Aux, and is mostly important under stable atmospheric conditions. Soil wetness and vegetation parameters are the dominant parameters under buoyant conditions.