Cross calibration of IRS-P4 OCM satellite sensor

被引：2

作者：

Suresh, T. ^{[1
]}

Desa, Elgar ^{[1
]}

Mascarenhas, Antonio ^{[1
]}

Matondkar, S. G. Prabhu ^{[1
]}

Naik, Puneeta ^{[1
]}

Nayak, S. R. ^{[2
]}

机构：

[1] Natl Inst Oceanog, Panaji 403004, Goa, India

[2] Ctr Space Applicat, Ahmadabad, Gujarat, India

来源：

REMOTE SENSING AND MODELING OF THE ATMOSPHERE, OCEANS, AND INTERACTIONS | 2006年 / 6404卷

关键词：

OCM; IRS-P4; cross-calibration; vicarious calibration; 6S; SeaWiFS;

D O I：

10.1117/12.694019

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

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.

引用

页数：9

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