数据说明
HY-1B Diffuse Attenuation Coefficient at 490nm(KD3)
上传时间:2019-05-22 14:15:27 浏览次数:作者与来源:admin
It is the product of the diffuse attenuation coefficient at 490nm retrieved by HY-1B/COCTS.
Unit: m-1
Resolution:  1.6km
Duration: 2007-2016
Source: HY-1B/COCS L1B data from the Hangzhou ocean satellite data receiving ground station.
Version: 2018
Dataset Name: 
Processing:
Based on the retrieved normalized water-leaving radiance (or remote sensing reflectance, Rrs), the Kd(490nm) was estimated using the empirical model as  Kd=0.2166*[Lw(565nm)/Lw(490nm)]-1.6355.
Known Issues:
Due to no orbit calibration instrument onboard the HY-1B satellite, there may have calibration issue on the HY-1B/COTS L1B data, which will propagate to the derived Kd(490nm) product. Moreover, the empirical algorithm based on the blue-green band ratio may not suitable for the turbid waters.
Reference
Xianqiang He, Yan Bai, Delu Pan, Qiankun Zhu. The atmospheric correction HY-1B/COCTS, Proc. SPIE, 2008,7147:714717. DOI: 10.1117/12.813244.
Yan Bai, Lianghong Jiang, Xianqiang He, Vittorio Barale. An introduction to optical remote sensing of the Asian Seas: Chinese dedicated satellite s and data processing techniques. Remote Sensing of the Asian Seas, Edited by V. Barale and M. Gade, Springer, 2019,61-79. DOI:10.1007/978-3-319-94067-0_3
Acknowledgment
Please cite the above two reference if this dataset is used. Moreover, the satellite ground station and the satellite data processing & sharing center of the SOED/SIO should be acknowledged.