AOD Retrieval Over Different LULC Features Using AWiFS Data—A Case Study Over Dehradun

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  • Manu Mehta Department of Photogrammetry and Remote Sensing, Indian Institute of Remote Sensing, Dehradun, India
  • Rimjhim Rao Department of Photogrammetry and Remote Sensing, Indian Institute of Remote Sensing, Dehradun, India
  • Gaurav J. Doley Department of Photogrammetry and Remote Sensing, Indian Institute of Remote Sensing, Dehradun, India
  • Attili Rajsekhar Department of Photogrammetry and Remote Sensing, Indian Institute of Remote Sensing, Dehradun, India
  • Simmi Sindhwani Department of Photogrammetry and Remote Sensing, Indian Institute of Remote Sensing, Dehradun, India

Abstrakt

In this study, an attempt is made to estimate the Aerosol Optical Depth (AOD) using a physically based radiative transfer model i.e. SMART (Simple Model for Atmospheric Radiative Transfer) over different LULC features. The forward procedure requires the data from Band B2: 0.52-0.59 μm of Resourcesat-2 Advanced Wide Field Sensor (AWiFS). While some of the atmospheric parameters, through transmittance, spherical albedo have been parameterized, few of them are utilized from other sensors e.g., MODIS, OMI etc. AOD observations at the time of satellite pass using ground based instrumentation, i. e., handheld sun photometer have also been recorded both for the calibration process and validation of the results.One Sentence Summary: Using SMART model (a physically based approximate model), aerosol optical depth is retrieved over different LULC classes and compared with that using sun photometer for the simultaneous passes.Keywords: Aerosol Optical Depth (AOD), SMART (Simple Model for Atmospheric Radiative Transfer), Advanced Wide Field Sensor (AWiFS)Cite this ArticleManu Mehta, Rimjhim Rao, Gaurav J. Doley et al. AOD Retrieval Over Different LULC Features Using AWiFS Data—A Case Study Over Dehradun. Journal of Remote Sensing & GIS. 2017; 8(2): 54–57p.

Stažení

Publikováno

2017-09-26

Číslo

Vol 8 No 2 (2017)

Sekce

Research Articles

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