干旱区生态环境知识资源中心(Arid): GLDAS和CLDAS融合土壤水分产品在青藏高原地区的适用性评估

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	GLDAS和CLDAS融合土壤水分产品在青藏高原地区的适用性评估
其他题名	Applicability Evaluation of Merged Soil Moisture in GLDAS and CLDAS Products over Qinghai-Tibetan Plateau
	崔园园 1; 覃军 2; 敬文琪 3; 谭桂容 4
来源期刊	高原气象
ISSN	1000-0534
出版年	2018
卷号	37 期号:1 页码:123-136
中文摘要	利用第三次青藏高原(下称高原)大气科学试验(TIPEX Ⅲ)和高原周边自动土壤水分观测站0 ~ 10 cm层次土壤湿度观测资料,通过计算全球陆面同化系统(GLDAS-NOAH)和中国气象局陆面同化系统的融合产品(CLDAS-V1.0)与观测资料之间的相关性和偏差,综合评估了融合土壤水分产品在高原的适用性。结果表明,两种融合资料在安多、那曲、聂荣、Sta-ave区域(小嵩草高寒草甸) 4个站点表现较优,而融合资料在班戈(禾草高寒草原) 、嘉黎(亚高山常绿叶灌丛)和比如(亚高山常绿叶灌丛)质量较差,阿里站(矮半灌木荒漠)是融合资料与观测相差最大的站点;融合土壤湿度产品的质量存在明显的日变化,并在14: 00-20: 00(北京时)表现为最差;融合资料的质量2014年整体上优于2013年,其中2013年8月中下旬和10月中旬两种资料质量较差,进一步分析发现当降水强度急剧增强时,融合资料的质量变差;融合产品质量在高原地区由东南向西北方向递减,相对于GLDAS资料,CLDAS在对四川东南地区和新疆地区大部分站点的土壤湿度描述能力上有了较大的改善,两种资料在四川东北部地区有较好的一致性。
英文摘要	The temporal and spatial variations in soil moisture play an important role in the water and energy cycle on the Qinghai-Tibetan Plateau (QTP). In-situ soil moisture observation at 0~10 cm layer from the automatic soil moisture monitoring stations around the QTP and the 3~(rd) QTP Atmospheric Scientific Experiment (TIPEX Ⅲ) were firstly put into use to test and verify two land surface model products,i. e. GLDAS-NOAH(Global Land Data Assimilation System) and CLDAS-V1.0(CMA Land Data Assimilation System Version1.0) by calculating the correlation coefficient and bias between model product and in-situ soil moisture observation. The two merged products were better in the four sites of Ando,Nagqu,Nierong and Sta-ave (Kobayashi alpine meadow),while in Bangor (Grassy alpine grassland),Jiali (Subalpine evergreen leaves Shrub) and Biru (Subalpine evergreen leaf shrubs),the quality of the merged data performed less well,and the Ali station (Dwarf shrub desert) was the site with the largest deviation between the merged data and the in-situ soil moisture data. There was a significant diurnal variation of the quality of soil moisture products and the worst performance of model products shows during 14: 00 to 20: 00 (Beijing Time). And their performances on simulating the temporal distribution in 2014 were all superior to that in 2013. From June to August,the two models had a good consistency with the in-situ soil moisture data. The quality in 2014 of the two merged products had an advantage over the quality of 2013,and the quality of the two merged products had the lowest score in the middle and the late of August and mid-October in 2013. By further analysis,it is found that when the precipitation intensity increased sharply,the quality of the two merged data became worse. For the two merged products, the quality in the QTP decreased from southeast region to northwest region. Compared with GLDAS,the quality of CLDAS was raised more remarkable improvement in southeastern Sichuan province and Xinjiang region. In addition,the two merged products were in good agreement in northeast Sichuan province.
中文关键词	青藏高原 ; 融合土壤水分产品 ; 第三次青藏高原大气科学试验 ; 适用性评估
英文关键词	Qinghai-Tibetan Plateau merged soil moisture product the 3rd Qinghai-Tibetan Plateau Atmospheric Scientific Experiment applicability evaluation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6198169
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237748
作者单位	1.南京信息工程大学大气科学学院;;中国气象局乌鲁木齐新疆沙漠研究所, ;;, 南京;;乌鲁木齐, 江苏;;新疆 210044;;830002, 中国; 2.中国地质大学(武汉)环境学院, 武汉, 湖北 430074, 中国; 3.国防科技大学气象海洋学院, 南京, 江苏 211101, 中国; 4.南京信息工程大学大气科学学院, 南京, 江苏 210044, 中国
推荐引用方式 GB/T 7714	崔园园,覃军,敬文琪,等. GLDAS和CLDAS融合土壤水分产品在青藏高原地区的适用性评估[J],2018,37(1):123-136.
APA	崔园园,覃军,敬文琪,&谭桂容.(2018).GLDAS和CLDAS融合土壤水分产品在青藏高原地区的适用性评估.高原气象,37(1),123-136.
MLA	崔园园,et al."GLDAS和CLDAS融合土壤水分产品在青藏高原地区的适用性评估".高原气象 37.1(2018):123-136.