EGU2020-21280
https://doi.org/10.5194/egusphere-egu2020-21280
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Aerosol remote sensing from the integrated LEO and GEO satellite observation data by determination of atmospheric transmission and surface reflection

Kwon-Ho Lee1 and Jong-Min Yum2
Kwon-Ho Lee and Jong-Min Yum
  • 1Gangneung-Wonju National University, Atmospheric & Environmental Sciences, Gangneung 25457, Republic of Korea (kwonho.lee@gmail.com)
  • 2Satellite Application Division, National Satellite Operation & Application Center, Korea Aerospace Research Institute(KARI), Daejeon 34133, Republic of Korea (yeomjm@kari.re.kr)

The earth observing satellites including the low earth orbit (LEO) and geostationary orbit (GEO) platforms have been provided the geophysical data. Spectral radiances measured by a satellite-borne sensor are sensitive to both atmospheric transmission and surface reflection. These volumetric data were used to retrieve atmospheric transmission and surface reflection which can be useful to derive surface reflectance (SR) and aerosol optical thickness (AOT). Based on the extensive radiative transfer simulations with the LEO satellite’s operational atmospheric products, it is demonstrated that the use of the combined LEO and GEO satellite measurements allows for timely retrieval of SR and AOT at a reasonable accuracy. The method for both the Geostationary Ocean Color Imager (GOCI) and the Landsat-8 Operational Land Imager (OLI) data. After the spatial and temporal collocations between two different orbit data, the atmospheric correction of both satellite’s spectral reflectances showed that the averaged changes of reflectance in 10% to 30%. Moreover, comparisons with the other operational products of SR and AOT such as the ground-based Aerosol Robotic Network (AERONET) showed retrieval error of within ±5.6% SR and ±9.8% AOT. Combining the LEO and GEO satellite data are effective method for the atmospheric correction and geophysical parameter retrieval. Further work will be applied to the next generation geostationary satellites, namely the Geostationary Earth Orbit Korea Multi-Purpose Satellite (GEO-KOMPSAT-2A and -2B) platforms.

Acknowledgement
This subject is supported by the Korea Aerospace Research Institute (KARI) (FR19920W05) and Korea Ministry of Environment (MOE) as "Public Technology Program based on Environmental Policy (2017000160003).

 

How to cite: Lee, K.-H. and Yum, J.-M.: Aerosol remote sensing from the integrated LEO and GEO satellite observation data by determination of atmospheric transmission and surface reflection, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-21280, https://doi.org/10.5194/egusphere-egu2020-21280, 2020