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| 青藏高原中部季节冻土区地表能量通量的模拟分析 | |
| 引用本文： | 郭东林,杨梅学,李敏,屈鹏.青藏高原中部季节冻土区地表能量通量的模拟分析[J].高原气象,2009,28(5):978-987. |
| 作者姓名： | 郭东林 杨梅学 李敏 屈鹏 |
| 作者单位： | 1. 中国科学院,寒区旱区环境与工程研究所冰冻圈科学国家重点实验室,甘肃,兰州,730000;中国科学院,大气物理研究所竺可桢-南森国际研究中心,北京,100029 2. 中国科学院,寒区旱区环境与工程研究所冰冻圈科学国家重点实验室,甘肃,兰州,730000 3. 中国科学院,大气物理研究所国际气候与环境科学中心,北京,100029 4. 甘肃省基础地理信息中心,甘肃,兰州,730000 |
| 基金项目： | 中国科学院"百人计划"项目，国家自然科学基金重大国际(地区)合作研究项目，国家重点基础研究发展规划(973计划) |
| 摘 要： | 利用“全球协调加强观测计划之亚澳季风青藏高原试验(CAMP/Tibet)”中那曲地区BJ站2002年8月1日\_2003年8月31日的观测资料作为水热耦合模式(Simultaneous Heat and Water, SHAW)的强迫场,对青藏高原中部季节冻土区地表能量通量特征进行了单点模拟研究。通过对实测值与模拟结果的对比分析,发现SHAW模式能较成功地模拟该地区地表能量通量特征, 短波净辐射和长波净辐射的模拟值与观测值吻合较好, 净辐射和土壤热通量在夏半年的模拟值与观测值也吻合,但相对夏\, 秋季而言,它们在冬\, 春季的模拟值较观测值略偏大。模拟的感热和潜热通量的季节变化比较合理,由模拟的感热和潜热通量计算的Bowen比能较好地解释不同季节太阳辐射的能量转化。 |
| 关 键 词： | 青藏高原 SHAW模式 地表能量通量 |
Analysis on Simulation of Characteristic of Land Surface Energy Flux in Seasonal Frozen Soil Region of Central Tibetan Plateau |
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| GUO Dong-lin,YANG Mei-xue,LI Min,QU Peng.Analysis on Simulation of Characteristic of Land Surface Energy Flux in Seasonal Frozen Soil Region of Central Tibetan Plateau[J].Plateau Meteorology,2009,28(5):978-987. | |
| Authors: | GUO Dong-lin YANG Mei-xue LI Min QU Peng |
| Abstract: | Using the observed BJ site data from CEOP Asia-Australia Monson Project on the Tibetan Plateau (CAMP, 2001-2005) from 1 August 2002 to 31 August 2003, the land surface energy flux characteristics in seasonal frozen soil region of central Tibetan Plateau were simulated by the Simultaneous Heat and Water (SHAW) model. The model closely captures the pattern of the surface energy flux, including net short wave radiation, net long wave radiation, net radiation, soil heat flux, sensible heat flux, and latent heat flux. Net short wave radiation and net long wave radiation were simulated well. The simulated results of net radiation and soil heat flux during summer half year were also well, but that of them during winter half year is slightly larger than the observed. The simulated sensible heat and latent heat flux have a reasonable seasonal change. Furthermore, the Bowen ratio calculated by simulated sensible heat and latent heat can indicate energy conversion of solar radiation during different seasons. |
| Keywords: | Tibetan Plateau SHAW model Land surface energy flux |
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