FY-1C VISIBLE CHANNELS' ALBEDO ATTENUATION
ANALYSIS AND CORRECTION EXPERIMENT

Gu Songyan; Qiu Hong; Liu Yujie; Fan Tianxi

Vol.13, NO.6, 2002

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2002 > 13(6): 734-740

Gu Songyan, Qiu Hong, Liu Yujie, et al. Fy-1C visible channels' albedo attenuation analysis and correction experiment. J Appl Meteor Sci, 2002, 13(6): 734-740.

Citation:

Gu Songyan, Qiu Hong, Liu Yujie, et al. Fy-1C visible channels' albedo attenuation analysis and correction experiment. J Appl Meteor Sci, 2002, 13(6): 734-740.

Gu Songyan, Qiu Hong, Liu Yujie, et al. Fy-1C visible channels' albedo attenuation analysis and correction experiment. J Appl Meteor Sci, 2002, 13(6): 734-740.

Citation:

Gu Songyan, Qiu Hong, Liu Yujie, et al. Fy-1C visible channels' albedo attenuation analysis and correction experiment. J Appl Meteor Sci, 2002, 13(6): 734-740.

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FY-1C VISIBLE CHANNELS' ALBEDO ATTENUATION ANALYSIS AND CORRECTION EXPERIMENT

National Satellite Meteorological Center, Beijing, PRC, 100081

Received Date: 2001-11-03
Rev Recd Date: 2001-12-24
Publish Date: 2002-12-31

Abstract

Abstract

The remote sensing data of FY-1C visible channels in the Dunhuang test area in two years are used to analyze the channels' albedo attenuation. At the same time, some correction experiments have been conducted. Analysis results show that in most FY-1C channels the instrument functions well in orbit, except in Channel 1. By using a statistic method, a set of new calibration coefficients over time is obtained. There is a good coherence between experiment results and CRCS field observation.
- Scanner Radiometer;
- Channel attenuation;
- Correction experiment

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References(2)

Figures and Tables

图 1 2000 年1 月FY-1C 通道1 卫星扫描角统计订正数据选取简述图

(黑圆圈标注数据为被选中的分析样本)

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图 2 扫描角订正简视图

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图 3 2000 年FY-1C 通道1 原始取样样本

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图 4 FY-1C 可见光、近红外通道分析处理及质量控制后通道反射率月平均值分析样本数据变化曲线

(从1999 年9 月算起到2001 年3 月)

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图 5 通道1 衰减订正试验效果示意图

(2000 年1 月到2000 年12 月)

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表 1 FY-1C 可见光、近红外通道光谱宽度

表 2 通道2、6、7、8、9 和10 衰减分析结果

表 3 通道1 衰减分析结果

表 4 定标系数订正量随时间变化的关系式

表 5 2000 年7 月外定标结果与衰减订正分析结果的对比

References

[1]	Tanhnk W R, Coakley J A. Improved calibration coefficients for NOAA-14 AVHRR visible and near-infrared channels. Int. J. Remote Sensing, 2001, 22: 1269-1283. doi: 10.1080/01431160151144341
[2]	Rao C R N, Chen J. Post-launch calibration of the visible and near-infrared channels of the AVHRR on NOAA-14 spacecraft. Int. J. Remote Sensing, 1996, 17: 2743-2747. doi: 10.1080/01431169608949104