Detection of marine aerosols with IRS P4-Ocean Colour Monitor

Journal of Earth system science

K Krishnamoorthy2¹  Indrani Das1²  M Mohan1² 

[1] Space Physics Laboratory, Vikram Sarabhai Space Centre (ISRO), Trivandrum 695 022, India.$$;Marine Science and Coastal Environment Division, Space Applications Centre (ISRO), Ahmedabad 380 015, India$$

关键词: IRS P4-OCM;    Ocean Colour Monitor;    aerosol optical depth;    marine aerosols;    aerosol plumes.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

The atmospheric correction bands 7 and 8 (765nm and 865nm respectively) of the Indian Remote Sensing Satellite IRS P4-OCM (Ocean Colour Monitor) can be used for deriving aerosol optical depth (AOD) over the oceans. A retrieval algorithm has been developed which computes the AOD using band 7 data by treating the ocean surface as a dark background after removing the Rayleigh path radiance in the sensor-detected radiances. This algorithm has been used to detect marine aerosol distributions at different coastal and offshore locations around India.A comparison between OCM derived AOD and the NOAA operational AOD shows a correlation ∼0.92 while that between OCM derived AOD and the ground-based sun photometer measurements near the coast of Trivandrum shows a correlation of ∼0.90.

【 授权许可】

Unknown