| 多层土壤温度模拟及其检验 |
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| 引用本文： | 周锁铨,张翠,王小宁,吴息.多层土壤温度模拟及其检验[J].南京气象学院学报,2004,27(2):200-209. |
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| 作者姓名： | 周锁铨 张翠 王小宁 吴息 |
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| 作者单位： | 1. 南京气象学院,资源环境与城乡规划系,江苏,南京,210044
2. 陕西省气象局,陕西,西安,710015 |
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| 基金项目： | 国家重点基础研究(973)项目,中国水圈环境关键与典型事件时空尺度定量遥感信息系统与应用示范项目(2001CB309404),海外杰出青年合作项目"遥感在长江流域陆面水文过程中的应用"(40128001/D05) |
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| 摘 要： | 对陆面过程模式(BATS)土壤温度模拟进行了改进,提出了一个利用气象站资料模拟土壤温度的模式。研究结果表明：采用热扩散方程模拟多层土壤温度,可与观测站的资料直接比较;模式能很好地模拟各层土壤温度的年变化、季变化、日变化。冬季下层土壤温度高于上层土壤温度,夏季上层土壤温度高于下层土壤温度,上下层温度的转换时间大约在3月份和10月份,这与实测土壤温度的年变化非常一致;模式较准确地模拟了各层土壤温度垂直方向变化的时滞效应。
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| 关 键 词： | 陆面过程 土壤温度 模拟检验 气候观测 |
| 文章编号： | 1000-2022(2004)02-0200-10 |
Simulation of Soil Temperature with a Multi-layer Model and Its Verification |
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| ZHOU Suo-quan,ZHANG Cui,WANG Xiao-ning,WU Xi.Simulation of Soil Temperature with a Multi-layer Model and Its Verification[J].Journal of Nanjing Institute of Meteorology,2004,27(2):200-209. |
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| Authors: | ZHOU Suo-quan ZHANG Cui WANG Xiao-ning WU Xi |
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| Institution: | ZHOU Suo-quan~1,ZHANG Cui~1,WANG Xiao-ning~2,WU Xi~1 |
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| Abstract: | This paper presents a soil temperature simulation scheme of using the conventional meteorological station data,thus improving the soil temperature simulation of the land surface process model of BATS proposed by Dickinson et al.This scheme can simulate the annual,seasonal and diurnal soil temperature variations at different depth fairly well.The results show that the simulated soil temperature of multi-layers by using the heat diffuse equation is comparable with the observed data;and the model is able to simulate the annual,seasonal and diurnal temperature variation very well at various levels.The temperature of deep layer is higher than that of surface layer in winter,while the upper layer temperature is higher than that of the deeper layer in summer.The times when the temperature gradient begins to reverse are about in April and October,which is in agreement with the feature observed.The model correctly simulates the time lags of soil temperature variations of various layers. |
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| Keywords: | land surface process soil temperature simulation |
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