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Article

Sensitivity Analysis Method for Spectral Band Adjustment between Hyperspectral Sensors: A Case Study Using the CLARREO Pathfinder and HISUI

by 1,2
1
Department of Information Science and Technology, Aichi Prefectural University, 1522-3 Ibaragabasama, Nagaute, Aichi 480-1198, Japan
2
The Institute of Geology and Geoinformation, National Institute of Advanced Industrial Science and Technology (AIST), Central 7, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8567, Japan
Remote Sens. 2019, 11(11), 1367; https://0-doi-org.brum.beds.ac.uk/10.3390/rs11111367
Received: 5 May 2019 / Revised: 30 May 2019 / Accepted: 5 June 2019 / Published: 6 June 2019
(This article belongs to the Special Issue Calibration/Validation of Hyperspectral Imagery)
The International Space Station has become the platform for deploying hyperspectral sensors covering the solar reflective spectral range for earth observation. Intercalibration of hyperspectral sensors plays a crucial role in evaluating/improving radiometric consistency. When intercalibrating between hyperspectral sensors, spectral band adjustment is required to mitigate the effects of differences between the relative spectral responses (RSRs) of the sensors. Errors in spectral parameters used in spectral band adjustment are propagated through to the adjustment results. The present study analytically approximated the uncertainty in the spectral band adjustment for evaluating the relative contributions of uncertainties in parameters associated with the exo-atmosphere, atmosphere, and surface to the total uncertainty. Numerical simulations using the derived equations were conducted to perform a sensitivity analysis for the case of the spectral band adjustment between the Climate Absolute Radiance and Refractivity Observatory (CLARREO) Pathfinder (CPF) and the Hyperspectral Imager Suite (HISUI). The results show that the effects of errors in the solar irradiance were greater than those of other sources of error, indicating that accurate estimates of atmospheric reflectances and tranismittances are not needed for spectral band adjustment between CPF and HISUI in the atmospheric windows. The accuracy of the analytical approximation was also evaluated in the simulations. The framework of the sensitivity analysis is applicable to other pairs of hyperspectral sensors. View Full-Text
Keywords: spectral band adjustment; sensitivity analysis; CLARREO Pathfinder; HISUI; intercalibration spectral band adjustment; sensitivity analysis; CLARREO Pathfinder; HISUI; intercalibration
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MDPI and ACS Style

Obata, K. Sensitivity Analysis Method for Spectral Band Adjustment between Hyperspectral Sensors: A Case Study Using the CLARREO Pathfinder and HISUI. Remote Sens. 2019, 11, 1367. https://0-doi-org.brum.beds.ac.uk/10.3390/rs11111367

AMA Style

Obata K. Sensitivity Analysis Method for Spectral Band Adjustment between Hyperspectral Sensors: A Case Study Using the CLARREO Pathfinder and HISUI. Remote Sensing. 2019; 11(11):1367. https://0-doi-org.brum.beds.ac.uk/10.3390/rs11111367

Chicago/Turabian Style

Obata, Kenta. 2019. "Sensitivity Analysis Method for Spectral Band Adjustment between Hyperspectral Sensors: A Case Study Using the CLARREO Pathfinder and HISUI" Remote Sensing 11, no. 11: 1367. https://0-doi-org.brum.beds.ac.uk/10.3390/rs11111367

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