COVARIANCE

作品数：211被引量：435H指数：10
导出分析报告
相关领域：电子电信更多>>
相关作者：郑希吴建国石春海叶子弘葛国科更多>>
相关机构：浙江大学华东师范大学国防科学技术大学坦佩雷大学更多>>
相关期刊：更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划上海市自然科学基金更多>>
-
在结果中检索

检索结果分析

结果分析中...
选择条件：
  • 基金=国家重点基础研究发展计划x
共 条 记 录，以下是1-8
全选清除导出
参考文献引证文献引用追踪
视图：
排序：
Compensation Algorithm Based on Estimation State for Transmission Delay in Cooperative Localization
《Transactions of Nanjing University of Aeronautics and Astronautics》2014年第1期91-98,共8页王雷钢 张涛 杨伟锋 
Supported by the National Basic Research Program of China(2010CB731800)
In order to maximize the utilization of the observation information in the cooperative localization,a compensation algorithm based on the estimation state is presented for transmission delay.Under the framework of the...
关键词：cooperative localization Kalman filter transmission delay covariance factor 
The Structure of Background-error Covariance in a Four-dimensional Variational Data Assimilation System:Single-point Experiment被引量：2
《Advances in Atmospheric Sciences》2010年第6期1303-1310,共8页刘娟娟 王斌 王曙东 
We acknowledge the Ministry of Science and Technology of China (Grant No.2006BAC03B01);the Ministry of Science and Technology of China for funding the 973 project (Grant No.2005CB321703)
A four dimensional variational data assimilation （4DVar） based on a dimension-reduced projection （DRP-4DVar） has been developed as a hybrid of the 4DVar and Ensemble Kalman filter （EnKF） concepts. Its good flow-...
关键词：DRP-4DVar data assimilation flow dependence single-point experiment 
δ13C-δ18O Covariance:An Effective Indicator of Hydrological Closure for Lakes?
《Acta Geologica Sinica(English Edition)》2008年第5期975-981,共7页CHEN Jing＇an WANG Fushun WAN Guojiang TANG Degui David Dian ZHANG HUNAG Ronggui LI Jian XIAO Tangfu 
the National Natural Science Foundation of China（Grant No.40673068）;the National Basic Research Program of China（Grant No.2006CB403201）。
The correlation between the δ^13C and δ^13C-δ^18O in primary carbonates is affected by several factors such as hydrological balance, total CO2 concentrations, climatic condition and lake productivity. The influence...
关键词：carbonates δ^13C-δ^18O covariance hydrological closure climatic pattern 
Modeling gross primary production of a temperate grassland ecosystem in Inner Mongolia, China, using MODIS imagery and climate data被引量：13
《Science China Earth Sciences》2008年第10期1501-1512,共12页WU WeiXing WANG ShaoQiang XIAO XiangMing YU GuiRui FU YuLing HAO YanBin 
the International Partnership Project of Chinese Academy of Sciences (Grant No. CXTD-Z2005-1);National Basic Research Program of China (Grant No. 2002CB412501);NASA Land Cover and Land Use Change (LCLUC) Program (Grant Nos. NAG5-11160, NNG05GH80G)
Carbon fluxes in temperate grassland ecosystems are characterized by large inter-annual variations due to fluctuations in precipitation and land water availability. Since an eddy flux tower has been in operation in th...
关键词：GPP EDDY COVARIANCE remote sensing Xilin GOL 
Study on the processing method of nighttime CO_2 eddy covariance flux data in ChinaFLUX被引量：29
《Science China Earth Sciences》2006年第S2期36-46,共11页ZHU Zhilin, SUN Xiaomin, WEN Xuefa, ZHOU Yanlian, TIAN Jing & YUAN Guofu Key Laboratory of Ecosystem Network Observation and Model, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China Graduate University of the Chinese Academy of Sciences, Beijing 100049, China 
The authors thank the Yucheng sta-tion and the Changbai Mountains station for providing ob-servation data. This work was supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. KZCX1-SW-01-01A); the National Basic Research Program of China (Grant No. G2002CB412501).
At present, using Eddy Covariance (EC) method to estimate the "true value" of carbon sequestration in terrestrial ecosystem arrests more attention. However, one issue is how to solve the uncertainty of observations (e...
关键词：EDDY COVARIANCE NIGHTTIME CO2 FLUX data correction ChinaFLUX. 
Seasonal dynamics of CO_2 fluxes from subtropical plantation coniferous ecosystem被引量：27
《Science China Earth Sciences》2006年第S2期99-109,共11页LIU Yunfen, YU Guirui, WEN Xuefa, WANG Yinghong, SONG Xia, LI Ju, SUN Xiaomin, YANG Fengting, CHEN Yongrui & LIU Qijing Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China College of Resources and Environmental Science, China Agricultural University, Beijing 100094, China 
This work was supported by the Chinese Academy of Sciences (Grant No. KZ-CX1-SW-01-01A2, KZ-CX-SW-01-01B-02);the Ministry of Science and Technology of China (Grant No.2002CB412501);Institute Geography Science Natural Resource Research, CAS, the Knowledge Innovation Engineering Backbone Science Plan (CX10G-E01-03-05);respectively. We also appreciate the technical assistance provided by Campbell Scientific Inc, USA, and its representative, the Tempo com-pany in China.
As one component of ChinaFLUX, the measurement of CO2 flux using eddy covariance over subtropical planted coniferous ecosystem in Qianyanzhou was conducted for a long term. This paper discusses the seasonal dynamics o...
关键词：PLANTATION EDDY COVARIANCE photosynthesis RESPIRATION drought stress. 
Energy balance closure at ChinaFLUX sites被引量：53
《Science China Earth Sciences》2005年第z1期51-62,共12页LI Zhengquan, YU Guirui, WEN Xuefa, ZHANG Leiming, REN Chuanyou & FU Yuling Chinese Ecosystem Research Network Synthesis Research Center, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China Graduate School of the Chinese Academy of Sciences, Beijing 100039, China 
Network of eddy covariance observation is measuring long-term carbon and water fluxes in contrasting ecosystems and climates. As one important reference of independently evaluating scalar flux estimates from eddy cova...
关键词：ENERGY balance  ChinaFLUX  EDDY COVARIANCE technique. 
Seasonal patterns and environmental control of ecosystem respiration in subtropical and temperate forests in China被引量：14
《Science China Earth Sciences》2005年第z1期93-105,共13页YU Guirui, WEN Xuefa, LI Qingkang, ZHANG Leiming, REN Chuanyou, LIU Yunfen & GUAN Dexin Chinese Ecosystem Research Network Synthesis Research Center, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China Graduate School of the Chinese Academy of Sciences, Beijing 100039, China 
Continuous measurement of carbon dioxide exchange using the eddy covariance (EC) technique was made at two ChinaFLUX forest sites including the young subtropical Pinus plantation (Qianyanzhou) and old temperate broad-...
关键词：ChinaFLUX  EDDY covariance  Q10  DROUGHT effects  temperature effects. 
全选清除导出
共1页<1>
检索报告 对象比较 聚类工具 使用帮助 返回顶部