Investigation of the impact of anthropogenic heat flux within an urban land surface model and PILPS-urban
Investigation of the impact of anthropogenic heat flux within an urban land surface model and PILPS-urban
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DOI：
10.1007/s00704-015-1554-3
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发表时间：
2016-10
影响因子：
3.4
通讯作者：
M. Best;C. Grimmond
中科院分区：
文献类型：
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作者：
M. Best;C. Grimmond
第一次国际城市模式比较实验（PILPS-Urban）的结果表明，忽略地表能量平衡中人为热通量的模型至少与包括源项的模型一样好，但这无法解释。所进行的分析表明，从PILPS-Urban的结果被掩盖的信号，包括植被，这是确定在PILPS-Urban是重要的。包括人为热通量确实提高了性能，但效益是小的网站研究相对较小的幅度，这种通量相对于其他条款的表面能量平衡。然而，在该地点包括通量的时间变化没有进一步的好处。在人为热通量较大和时间变化较大的地点，其重要性预计会增加。
Results from the first international urban model comparison experiment (PILPS-Urban) suggested that models which neglected the anthropogenic heat flux within the surface energy balance performed at least as well as models that include the source term, but this could not be explained. The analyses undertaken show that the results from PILPS-Urban were masked by the signal from including vegetation, which was identified in PILPS-Urban as being important. Including the anthropogenic heat flux does give improved performance, but the benefit is small for the site studied given the relatively small magnitude of this flux relative to other terms in the surface energy balance. However, there is no further benefit from including temporal variations in the flux at this site. The importance is expected to increase at sites with a larger anthropogenic heat flux and greater temporal variations.