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| CoLM模式对青藏高原中部BJ站陆面过程的数值模拟 | |
| 引用本文： | 罗斯琼,吕世华,张宇,胡泽勇,马耀明,李锁锁,尚伦宇.CoLM模式对青藏高原中部BJ站陆面过程的数值模拟[J].高原气象,2008,27(2):259-271. |
| 作者姓名： | 罗斯琼 吕世华 张宇 胡泽勇 马耀明 李锁锁 尚伦宇 |
| 作者单位： | 1. 中国科学院,寒区旱区环境与工程研究所西部气候环境与灾害实验室,甘肃,兰州,730000;中国科学院研究生院,北京,100049 2. 中国科学院,寒区旱区环境与工程研究所西部气候环境与灾害实验室,甘肃,兰州,730000 3. 中国科学院,青藏高原研究生院,北京,100085 |
| 基金项目： | 国家自然科学基金 , 国家重点基础研究发展计划(973计划) , 中国科学院寒区旱区环境与工程研究所人才引进基金 |
| 摘 要： | 利用公共陆面模式Common Land Model(CoLM)及"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Bujiao(BJ)站2002—2004年的观测资料对该地区进行了单点数值模拟试验。通过比较模拟与观测的地表能量通量,表明CoLM较成功地模拟了该地区的能量分配。模式对向上的短波辐射、向上的长波辐射、净辐射及土壤热通量模拟得较好,但冬季存在偏差。进一步比较了模拟和观测的土壤温度及土壤湿度,发现浅层60 cm土壤温度模拟较好,深层存在偏差,表现为土壤温度变化滞后于实际变化。土壤湿度总体偏小,尤其是冬季冻结期,土壤冻融过程中忽略了土壤液态水在温度0℃以下仍能存在,含冰量模拟偏高。 |
| 关 键 词： | 青藏高原BJ站 陆面过程 CoLM模式 冻土 |
| 文章编号： | 1000-0534(2008)02-0259-13 |
| 修稿时间： | 2007年6月4日 |
Simulation Analysis on Land Surface Process of BJ Site of Central Tibetan Plateau Using CoLM |
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| LUO Si-qiong,L Shi-hua,ZHANG Yu,HU Ze-yong,MA Yao-ming,LI Suo-suo,SHANG Lun-yu.Simulation Analysis on Land Surface Process of BJ Site of Central Tibetan Plateau Using CoLM[J].Plateau Meteorology,2008,27(2):259-271. | |
| Authors: | LUO Si-qiong L Shi-hua ZHANG Yu HU Ze-yong MA Yao-ming LI Suo-suo SHANG Lun-yu |
| Institution: | LUO Si-qiong,L(U) Shi-hua,ZHANG Yu,HU Ze-yong,MA Yao-ming,LI Suo-suo,SHANG Lun-yu |
| Abstract: | Using the Common Land Model of NCAR and nearly two-year observed data of BJ site during CEOP Asia-Australia Monson Project on the Tibetan Plateau(CAMP/ Tibet,2001_2005),the simulation and other related research work of land surface process in Tibetan Plateau have been done.The difference of the surface energy flux between the in situ observation data and the simulation results were discussed.The results indicate that the model closely captures the pattern of USR,ULR and Rn.The bias of simulated radiation occurred during winter.The bias of soil heat flux is small during summer half year.From the observed vertical profiles of soil temperature and soil moisture,the impact of soil parameterization scheme in Common Land model on soil temperature and soil moisture simulations were analyzed.The simulation result of upper layer soil is better than lower layer soil.The simulated shallow soil temperature is well.The model underestimates the liquid water content in frozen soil. |
| Keywords: | Tibetan Plateau BJ site Land surface process Common land model Frozen soil |
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