Short-interval Land Use Change Detection with Microwave Remote Sensing Data

  • School of Geographical Sciences, Guangzhou University, Guangzhou 510006, China

Received date: 2013-09-04

  Revised date: 2014-03-02

  Online published: 2014-06-06

Supported by

the Research Grant Council Program of Hong Kong (Grant No. HKU7301/04H, HKU7466/06H), and the International Collaborative Program of Science and Technology of Guangzhou Municipal Bureau of Science and Information Technology (Grant No. 2012J5100044).


As the fast economic development and urban expansion, it is difficult for traditional methods to monitor land use changes in short time interval. Moreover, remotely sensed data acquired by optical sensors is often limited by bad weathers and cloud cover. SAR images, such as RADARSAT-1, are an ideal tool for weather-proof observation on ground surface. This paper analyzed the results of land use change detections with time lags of 24, 48 and 72 days according to the period of acquisition dates of RADARSAT-1. The results need a compromise between accuracies and efficiencies related to the time lags. For most of the situation, it is sufficient of using a time lag of 24 days to obtain accuracy of 60% or above. In some cases of months, a time lag of 48 days is needed. For obtaining higher accuracies, longer time lag such as 72 days is needed.

Cite this article

CHEN Xiaoyue . Short-interval Land Use Change Detection with Microwave Remote Sensing Data[J]. Journal of Resources and Ecology, 2014 , 5(2) : 185 -192 . DOI: 10.5814/j.issn.1674-764x.2014.02.012


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