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    • Keywords


      IRS P4-OCM; Ocean Colour Monitor; aerosol optical depth; marine aerosols; aerosol plumes

    • Abstract


      The atmospheric correction bands 7 and 8 (765nm and 865nm respectively) of the Indian Remote Sensing Satellite IRS P4-0CM (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.

    • Author Affiliations


      Indrani Das1 M Mohan1 K Krishnamoorthy2

      1. Marine Science and Coastal Environment Division, Space Applications Centre (ISRO), Ahmedabad - 380 015, India
      2. Space Physics Laboratory, Vikram Sarabhai Space Centre (ISRO), Trivandrum - 695 022, India
    • Dates

  • Journal of Earth System Science | News

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      Posted on July 25, 2019

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