Korean Journal of Remote Sensing (대한원격탐사학회지)

Korean Society of Remote Sensing (대한원격탐사학회)
권호 표지
DOI QR코드

DOI QR Code

Atmospheric correction algorithms for satellite ocean color data: performance comparison of "CTS-type" and "CZCS-type" algorithms

위성해색자료의 대기보정 알고리즘 : OCTS-type과 CZCS-type 알고리즘의 성능비교

  • Published : 1998.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

The paper first describes the atmospheric correction algorithm for the Ocean Color and Temperature Scanner (OCTS) visible band data used at Earth Observation Center (EOC) of National Space Development Agenrr of japan (NASDA). It uses 10 candidate aerosol models including "Asian dust model" introduced in consideration of the unique feature of aerosols over the east Asian waters. Based on the observations at 670 and 865 nm bands where the reflectance of the water body can be discarded, the algorithm selects a pair of aerosol models that accounts best for the observed spectral reflectances to synthesize the aerosol reflectance in other bands. The paper also evaluates the performance of the algorithm by comparing the satellite estimates of water-leaving radiance and chlorophyll-a concentration with selected buoy- and ship-measured data. In comparison with the old CZCS-type atmospheric correction algorithm where the aerosol reflectance is assumed to be spectrally independent, the OCTS algorithm records factor 2-3 less error in estimating the normalized water-leaving radiances. In terms of chlorophyll-a concentration estimation, however, the accuracy stays very similar compared to that of the CZCS-type algorithm. This is considered to be due to the nature of in-water algorithm which relies on spectral ratio of water-leaving radiances.

Keywords

References

  1. J. Geophysl Res. v.102 no.D14 Variation of atmospheric correction over the ocean Clark, D.K.;H. R. Gordon;K. J. Voss;Y. Ge;W. broenkow;C. Trees
  2. Eos Trans. AGU v.70 no.23 Ocean color: availability of the global data set Feldman, G. C.;N. Kuring;C. Ng;W. Esaias;C. McClain;J. Elrod;N. Maynard;D. Endres;R. Evans;lJ. Brown;S. Walsh;M. Carle;G. Podesta
  3. J. Geophys. Res. v.102 no.D14 Asian dust aerosol: optical effect on satellite ocean color signal and a scheme of its correction Fukushima, H.;M. Toratani
  4. Proc. Int. Sym. on Remote Sensign, Korean Soc, Remote Sensing Evaluation of OCTS atmosphecir correction and possible improvement Fukushima, H.;T. Nogulchi;H. Tabata;m. Toratani
  5. J. Oceanor.(in press) Correction of atmospheric effects of ADEOS/OCTS ocean color data: Algorithm description and evaluation of its performance Fukushima, H.;A, Higurashi.;Y, Mitomi;T, Nakajima;T, Noguchi;T, Tanaka;M, toratani
  6. Appl. Opt v.22 no.1 Phytoplankton pigment concentrations in the Middle Atlantic Bight: comparison of ship determinations and CZCS estimates Gordon, H.R.;D. K. Clark;J. W. Brown;O. B. Brown;R. H. Evans;W. W. Broenkow
  7. Appl. Opt v.33 no.3 Retrieval of water-leaving radiance and aerosol optical thickness over the oceans with SeaWiFS: a preliminary algorithm Gordon, H.R.;M. Wang
  8. J. Geophys. Res v.102 no.D14 Atmospheric correction of ocean color imagery in the Earth observing system era Gordon, H. R.
  9. J. Geophys. Res v.102 no.D14 Verification plan of ocean color and temperatuer scanner atmospheric correction and phytoplankton pigment by moored optical buoy system Kishino, M.;J. Ishizaka;S. Saitoh;Y. Senga;M Utashima
  10. J. Oceanogr. (in press) In-water algorithms for Ocean Color and Temperature Scanner (OCTS) onboard ADEOS Kishino, M.;T. Ishimaru;K. Furuya;T. Oishi;R. kawasaki
  11. J. Meteor. Soc. Japan v.67 Aerosol optical characteristics in the yellow sand events observed in May, 1982 at NaGASAKI - PART Ⅱ MOLELS Nakajima, T.;M. Tanaka;M. Yamamoto;M. Arao;Y. Nakanishi
  12. NASDA's annual report for OCTS project Development of radiance tables for aerosol remote sensing Nakajima, T.
  13. Ver. 2.0.1, 1997, Anonymous FTP site Advanced Earth Observing Satellite (ADEOS): oCTS Data Processing Algorithm Description NASDA/EOC
  14. J. Atmos. Sci v.37 Scattering by nonspherical particles of size comparable to a wavelength: a new semi-empirical theory and its applicationto tropospheric aerosols Pollack, J. B.;J. N. Cuzzi
  15. AFGL-TR-79-0214 v.675 Models for the aerosols of the lower atmosphere and the effects of humidity variations on their optical properties Shettle, E. P.;R. W. Fenn
  16. submitted to IEEE Trans. Geosci. Remote Sensing Calibration of the ocean color and temperature scanner Shimada, M.;H, Oaku.;Y, Mitomi.;H Murakami