Elimination of clouds in AVHRR/2 images of Qinghai-Tibet Plateau. Issue 5 (19th March 2019)

• Record Type: Journal Article
• Authors: Zhu, Ji; Shang, Guofei; Cao, Shuqin; Chen, Guizhu
• Is Part Of: International journal of remote sensing. Volume 40:Issue 5/6(2019)
• Page Start: 2427
• Page End: 2434
• Publication Date: 2019-03-19
• Subjects: Remote sensing -- Periodicals; Télédétection -- Périodiques; 621.3678
• DOI: 10.1080/01431161.2018.1480074
• Languages: English
• ISSNs: 0143-1161

Abstract

ABSTRACT: For achieving the snow mapping of AVHRR/2 (i.e. the second version of Advanced Very High Resolution Radiometer) data, clouds need to be eliminated in AVHRR/2 images. However, the clouds are difficult to be identified from the AVHRR/2 image with clouds and snow together. Here, clouds were divided into high clouds, medium clouds, low clouds, and thin clouds. Based on the respective thresholds from experiments using AVHRR/2 data of Qinghai–Tibet Plateau, the four kinds of clouds were identified and eliminated from the AVHRR/2 images. According to visual validation, the results of cloud elimination were reliable and accurate.