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Remote Sensing Technology and Application  2013, Vol. 28 Issue (1): 116-121    DOI: 10.11873/j.issn.1004-0323.2013.1.116
    
Oriental Migratory Locust Habitat Classification based on Multi-temporal Remote Sensing Data
Meng Qinghui1,2,Chen Jian1,Sheng Shijie1,Liu Jianqi1
(1.School of Remote Sensing,Nanjing University of Information Science & Technology,Nanjing 210044,China;2.State Key Laboratory of Satellite Ocean Environment Dynamics,Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012,China)
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Abstract  

There are close relationships between locust occurrence and their habitat.Therefore,the key of efficiently control of locust plague carrys out locust habitat monitoring.In this study,Bohai development zone in Hebei province was selected as the study area and multi-temporal data from the HJ-1 satellites were chosen to monitor the locust habitat.The locust habitat were monitored by the use of classification based on four different schemes of images band combination and two kinds of classifiers,including the maximum likelihood classifier and RuleGen Decision Tree classifier.The results show that there is no obvious difference between the two kinds of classifiers in terms of the overall accuracy of locust habitat classification.Precisely,the execution efficiency of RuleGen decision tree becomes low when the different category data exist.On the other hand,the overall accuracy of locust habitat classification with the single temporal combination schemes dated on May 20 is only 76.43%,Kappa coefficient of 0.7396,but after adding NDVI time-series information,the overall accuracy can reach 93.93%,Kappa coefficient of 0.9323.Therefore,taking advantage of multi-temporal data,which have similar spectral characteristics easy to classify,the impact of mixed pixel can be reduced largely and the classification accuracy of locust habitat can further be improved.

Key words:  Remote Sensing;Locust habitat      Oriental Migratory Locust      NDVI      Time series     
Received:  27 February 2012      Published:  21 June 2013
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Meng Qinghui
Chen Jian
Sheng Shijie
Liu Jianqi

Cite this article: 

Meng Qinghui,Chen Jian,Sheng Shijie,Liu Jianqi. Oriental Migratory Locust Habitat Classification based on Multi-temporal Remote Sensing Data. Remote Sensing Technology and Application, 2013, 28(1): 116-121.

URL: 

http://www.rsta.ac.cn/EN/10.11873/j.issn.1004-0323.2013.1.116     OR     http://www.rsta.ac.cn/EN/Y2013/V28/I1/116

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