Paper Info
Title
An Investigation of a Novel Cross-Calibration Method of FY-3C/VIRR against NPP/VIIRS in the Dunhuang Test Site.
Abstract
Radiometric cross-calibration of Earth observation sensors is an effective approach to evaluate instrument calibration performance, identify and diagnose calibration anomalies, and quantify the consistency of measurements from different sensors. In this study a novel cross-calibration method is proposed, taking into account the spectral and viewing angle differences adequately; the method is applied to the FY-3C/Visible Infrared Radiometer (VIRR), taking the Suomi National Polar-Orbiting Partnership (NPP)/Visible Infrared Imaging Radiometer Suite (VIIRS) as a reference. The results show that the relative difference between the two sets increases from January to May 2014, and becomes lower for the data on 24 July, 11 September, and 16 September, within approximately 10%. This phenomenon is caused by the updating of the calibration coefficients in the VIRR datasets with results from a vicarious method on June 2014. After performing an approximate estimation of the uncertainty, it is demonstrated that this calibration has a total uncertainty of 5.5%-6.0%, which is mainly from the uncertainty of the Bidirectional Reflectance Distribution Function model.
Year
DOI
Venue
2016
10.3390/rs8010077
REMOTE SENSING
Keywords
Field
DocType
cross-calibration,spectral adjustment,bidirectional reflectance distribution function model,FY-3C,VIRR,NPP,VIIRS
Bidirectional reflectance distribution function,Meteorology,Cross Calibration,Remote sensing,Earth observation,Test site,Geology,Visible Infrared Imaging Radiometer Suite,Calibration,Radiometer,Viewing angle
Journal
Volume
Issue
ISSN
8
1
2072-4292
Citations 
PageRank 
References 
0
0.34
0
Authors
7
Name
Order
Citations
PageRank
Caixia Gao15114.07
Yongguang Zhao200.34
Chuanrong Li34618.79
Lingling Ma44114.54
Ning Wang510.68
Yonggang Qian61710.45
Lu Ren702.03