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Integrating a very fast simulated annealing optimization algorithm for crop leaf area index variational assimilation

文献类型： 外文期刊

作者： Dong, Yingying 1 ; Zhao, Chunjiang 1 ; Yang, Guijun 1 ; Chen, Liping 1 ; Wang, Jihua 1 ; Feng, Haikuan 1 ;

作者机构： 1.Beijing Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

2.Zhejiang Univ, Inst Agr Remote Sensing & Informat Syst Applicat, Hangzhou 310029, Zhejiang, Peoples R China

关键词： Data assimilation;Four dimensional variational data assimilation (4DVAR);Very fast simulated annealing (VFSA);Leaf area index (LAI);CERES-Wheat model

期刊名称：MATHEMATICAL AND COMPUTER MODELLING （ 影响因子：1.366； 五年影响因子：1.602 ）

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收录情况： SCI

摘要： Leaf area index (LAI) is a major indicator for crop growth monitoring and yield estimation. Data assimilation as an effective tool for crop LAI estimation fully considers the properties of actual observations and physical model simulations. In this work, we present a new data assimilation scheme, introducing a very fast simulated annealing (VFSA) optimization algorithm into the process of crop LAI assimilation with a four dimensional variational data assimilation (4DVAR) algorithm. Firstly, calibrating the input parameters of a crop growth simulation model based on history observations. Secondly, quantitatively describing the relationship between fields observed data and model simulated data by the cost function of 4DVAR algorithm. Finally, the optimization process of the cost function is accomplished by the VFSA optimization algorithm, and further the optimal solution is taken as the best combination of input parameters of physical model for LAI estimation. Winter wheat in Beijing is taken as an experimental object. The numerical results show not only the improved time efficiency of this proposed assimilation scheme, but also enhanced assimilation accuracy of all LAI assimilations, especially for LAI ≥ 3.00. Theoretical analysis and practical experiments confirm the application prospect of VFSA optimization algorithm in LAI variational assimilation.

  • 相关文献

[1]Comparison and Analysis of Data Assimilation Algorithms for Predicting the Leaf Area Index of Crop Canopies. Dong, Yingying,Wang, Jihua,Wang, Huifang,Li, Cunjun,Yang, Guijun,Wang, Qian,Liu, Feng,Zhao, Jinling,Huang, Wenjiang,Huang, Wenjiang. 2013

[2]Estimating Winter Wheat Leaf Area Index From Ground and Hyperspectral Observations Using Vegetation Indices. Xie, Qiaoyun,Huang, Wenjiang,Zhang, Bing,Dong, Yingying,Xie, Qiaoyun,Chen, Pengfei,Song, Xiaoyu,Pascucci, Simone,Pignatti, Stefano,Laneve, Giovanni. 2016

[3]INTEGRATION OF MULTI-RESOLUTION DATA FOR CROP LAI ESTIMATION BASED ON CONTINUOUS WAVELET. Dong, Yingying,Wang, Jihua,Li, Cunjun,Yang, Guijun,Xu, Xingang,Zhao, Jinling,Huang, Wenjiang. 2012

[4]Estimating Wheat Yield in China at the Field and District Scale from the Assimilation of Satellite Data into the Aquacrop and Simple Algorithm for Yield (SAFY) Models. Silvestro, Paolo Cosmo,Casa, Raffaele,Pignatti, Stefano,Pascucci, Simone,Yang, Hao,Li, Zhenhai,Yang, Guijun,Huang, Wenjiang. 2017

[5]Leaf Area Index Estimation Using Vegetation Indices Derived From Airborne Hyperspectral Images in Winter Wheat. Xie, Qiaoyun,Huang, Wenjiang,Liang, Dong,Huang, Linsheng,Zhang, Dongyan,Chen, Pengfei,Wu, Chaoyang,Yang, Guijun,Zhang, Jingcheng. 2014

[6]A New Method for LAI Spatial Scaling based on Gaussian Distribution Theory. Dong, Yingying,Wang, Jihua,Li, Cunjun,Xu, Xingang,Zhao, Jinling,Wang, Huifang,Huang, Wenjiang. 2012

[7]Comparison and Analysis of Data Upscaling Schemes for Predicting Crop Leaf Area Index. Dong, Yingying,Feng, Haikuan,Wang, Jihua,Li, Cunjun,Yang, Guijun,Huang, Wenjiang,Dong, Yingying,Wang, Jihua. 2012

[8]A model with leaf area index and apple size parameters for 2.4 GHz radio propagation in apple orchards. Guo, Xiu-ming,Guo, Xiu-ming,Yang, Xin-ting,Chen, Mei-xiang,Li, Ming,Wang, Yan-an.

[9]A review of data assimilation of remote sensing and crop models. Jin, Xiuliang,Li, Zhenhai,Feng, Haikuan,Xu, Xingang,Yang, Guijun,Jin, Xiuliang,Li, Zhenhai,Feng, Haikuan,Xu, Xingang,Yang, Guijun,Jin, Xiuliang,Li, Zhenhai,Feng, Haikuan,Xu, Xingang,Yang, Guijun,Jin, Xiuliang,Li, Zhenhai,Feng, Haikuan,Xu, Xingang,Yang, Guijun,Kumar, Lalit,Wang, Jihua. 2018

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