Research on the Assessment of HJ-1A NDVI Accuracy

摘要：

The Chinese HJ satellites CCD sensor is similar to Landsat-S TM with the same spatial resolution, but have enormous advantages in space coverage and frequency of repeated observations. This paper focuses on the reflectance and NDVI evaluation of the HJ-1A CCD, the conclusions including: Theres no obvious difference between the CCD1 and CCD2, but among the 4 bands, blue band shows a relatively worse quality, red and infrared red shows the best quality. The NDVI extracted from HJ CCD shows excellent accuracy compared to Landsat TM, which means a widely applicability, but theres large error appears in water body NDVI of HJ CCD and should pay attention. HJ CCD sensors have much broader applicability due to its distinct advantage in space coverage and time resolution.

关键词： HJ CCD TM NDVI vegetation consistency

作者: Xiao-lei Li Rui Liu

作者单位: School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongq College of Geographical Science, Chongqing Normal University, Chongqing 400047, China Institute of G

会议类型: 国际会议

会议名称: 2012 International Conference on Measurement,Information and Control(2012测量、信息与控制国际会议 ICMIC2012)

会议地点: 哈尔滨

会议语种:英文

页码: 121-124

在线出版日期: 2012-05-18（万方平台首次上网日期，不代表论文的发表时间）