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Generation of Vegetation Fraction and Surface Albedo Products Over India from Ocean Colour Monitor (OCM) Data Onboard Oceansat-2

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Abstract

The use of Local Area Coverage (LAC) data from Ocean Color Monitor (OCM) sensor of Oceansat-2 with its high radiometric resolution (12 bits/pixel) and 2-day repeat cycle for rapid monitoring of vegetation growth and estimating surface albedo for the Indian region is demonstrated in this study. For the vegetation monitoring, normalized difference vegetation index (NDVI) and vegetation fraction (VF) products were estimated by maximum value composite approach fortnightly and were resampled to 1 km. The surface albedo products were realized by converting narrow-band eight-band spectral reflectance OCM data to a) visible (300–700 nm) and b) broad band (300–3,000 nm) data. For validation, the derived products were compared with respective MODIS global products and found to be in good agreement.

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Acknowledgments

Technical discussions held with K. Chandrasekar, Agricultural Sciences Applications Group, NRSC are sincerely acknowledged. Support provided by K.V. Chandrasekar, Operational Director for Oceansat-2 data products for timely supply of OCM products is acknowledged with thanks. Authors sincerely thank anonymous reviewers whose comments have helped to improve significantly the content of this paper.

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Authors and Affiliations

  1. National Remote Sensing Center (ISRO), Balanagar, Hyderabad, 500037, India

    A. Senthil Kumar, T. Radhika, P.K. Saritha, V. Keerthi, R. N. Anjani, M. Suresh Kumar, K. S. Sekhar, P. Satyanarayana, M. S. Naga Sudha, M. V. R. Sesha Sai & V. K. Dadhwal

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  1. A. Senthil Kumar
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  2. T. Radhika
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  3. P.K. Saritha
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  4. V. Keerthi
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  5. R. N. Anjani
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  6. M. Suresh Kumar
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  7. K. S. Sekhar
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  8. P. Satyanarayana
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  9. M. S. Naga Sudha
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  10. M. V. R. Sesha Sai
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  11. V. K. Dadhwal
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Correspondence to A. Senthil Kumar.

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Kumar, A.S., Radhika, T., Saritha, P. et al. Generation of Vegetation Fraction and Surface Albedo Products Over India from Ocean Colour Monitor (OCM) Data Onboard Oceansat-2. J Indian Soc Remote Sens 42, 701–709 (2014). https://doi.org/10.1007/s12524-014-0371-y

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  • DOI: https://doi.org/10.1007/s12524-014-0371-y

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