Cross calibration of formosat-2 Remote Sensing Instrument (RSI) using terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER)

Akihide Kamei, Kazuki Nakamura, Hirokazu Yamamoto, Ryosuke Nakamura, Satoshi Tsuchida, Naotaka Yamamoto, Satoshi Sekiguchi, Soushi Kato, Cheng Chien Liu, Kuo Hsien Hsu, An Ming Wu

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7 Citations (Scopus)

Abstract

The present paper describes the cross calibration of the Remote Sensing Instrument (RSI) onboard Formosat-2 using the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) onboard Terra as a reference, which has been continuously calibrated by means of the onboard and vicarious calibration methods. The data integration system for multi-satellite sensor databases on the Global Earth Observation Grid (GEO Grid) is used in order to find pairs of images acquired by both satellite optical sensors over the radiometric calibration sites on the same days. Radiative transfer simulations that consider different imaging conditions using the Second Simulation of a Satellite Signal in the Solar Spectrum (6S) code are performed based on the Moderate-resolution Imaging Spectroradiometer (MODIS) atmosphere and land products, and the optimum methodology for this cross calibration is discussed under the assumption of no ground-based measurements. The derived calibration coefficients are normalized by the values of preflight calibration and are compared with the results of in-flight cross calibration by the Centre National d'Études Spatiales (CNES) and vicarious calibration described in our previous paper. The average degradations of sensor sensitivity since preflight calibration until 2009 are estimated to be 10% (Band2), 11% (Band3), and 8% (Band4). The derived long-term degradation trends are almost consistent with the results of our vicarious calibration within the precision. The cross-calibration methodology used in the present paper facilitates the in-flight radiometric calibration of satellite optical sensors.

Original languageEnglish
Article number6202335
Pages (from-to)4821-4831
Number of pages11
JournalIEEE Transactions on Geoscience and Remote Sensing
Volume50
Issue number11 PART2
DOIs
Publication statusPublished - 2012 Jan 1

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Earth and Planetary Sciences(all)

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    Kamei, A., Nakamura, K., Yamamoto, H., Nakamura, R., Tsuchida, S., Yamamoto, N., Sekiguchi, S., Kato, S., Liu, C. C., Hsu, K. H., & Wu, A. M. (2012). Cross calibration of formosat-2 Remote Sensing Instrument (RSI) using terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). IEEE Transactions on Geoscience and Remote Sensing, 50(11 PART2), 4821-4831. [6202335]. https://doi.org/10.1109/TGRS.2012.2194155