Cross-calibration of IRS-P4 OCM satellite sensor

T. Suresh; Elgar Desa; Antonio Mascarenhas; S. G. Prabhu Matondkar; Puneeta Naik; S. R. Nayak

doi:10.1117/12.694019

8 December 2006 Cross-calibration of IRS-P4 OCM satellite sensor

T. Suresh, Elgar Desa, Antonio Mascarenhas, S. G. Prabhu Matondkar, Puneeta Naik, S. R. Nayak

Proceedings Volume 6404, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions; 640414 (2006) https://doi.org/10.1117/12.694019
Event: SPIE Asia-Pacific Remote Sensing, 2006, Goa, India

Abstract

We present here the cross calibration of ocean color satellite sensor, IRS-P4 OCM using the radiative transfer code, with SeaWiFS as a reference. Since the bands of IRS-P4 OCM are identical to those of SeaWiFS and SeaWiFS has been continuously and rigorously calibrated, SeaWiFS is used as a reference for the cross calibration of IRS-P4 OCM. Calibrations coefficients for each band of IRS-P4 OCM are derived by comparing the actual radiances detected by the satellites at top of the atmosphere and those obtained from the radiative transfer simulations of IRS-P4 OCM and SeaWiFS. The chlorophyll a values derived using the calibrated IRS-P4 OCM are found to be comparable with those derived from SeaWiFS and in close agreement with the measured values. The relative root mean square error (RRMSE) between measured chlorophyll a and those derived from the satellites are found to be 0.28 and 0.26 for SeaWiFS and IRS-P4 OCM respectively.

Citation Download Citation

T. Suresh, Elgar Desa, Antonio Mascarenhas, S. G. Prabhu Matondkar, Puneeta Naik, and S. R. Nayak "Cross-calibration of IRS-P4 OCM satellite sensor", Proc. SPIE 6404, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions, 640414 (8 December 2006); https://doi.org/10.1117/12.694019

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