Surface albedo from the geostationary Communication, Ocean and Meteorological Satellite (COMS)/Meteorological Imager (MI) observation system

Chang Suk Lee, Kyung Soo Han, Jong Min Yeom, Kyeong sang Lee, Minji Seo, Jinkyu Hong, Je Woo Hong, Keunmin Lee, Jinho Shin, In Chul Shin, Junghwa Chun, Jean Louis Roujean

Research output: Contribution to journalArticle

Abstract

The surface albedo is an essential climate variable that is considered in many applications used for predicting climate and understanding the mechanisms of climate change. In this study, surface albedo was estimated using a bidirectional reflectance distribution function model based on Communication, Ocean and Meteorological Satellite/Meteorological Imager data. Geostationary orbiting satellite data are suitable for a level 2 product like albedo, which requires a synthetic process to estimate. The authors modified established methods to consider the geometry of the solar-surface-sensor of COMS/MI. Of note, the viewing zenith angle term was removed from the kernel integration used for estimating spectral albedo. Finally, the spectral (narrow) albedo was converted into the broadband albedo with shortwave length (approximately 0.3–2.5 μm). This study determined conversion coefficients using only one spectral albedo of visible channel. The estimated albedo had a relatively high correlation with Satellite Pour l’Observation de la Terre/Vegetation and low unweighted error values specific for land types or times. The validation results show that estimated albedo has a root mean square error of 0.0134 at Jeju flux site that indicates accuracy similar to that of other satellite-based products.

Original languageEnglish
Pages (from-to)38-62
Number of pages25
JournalGIScience and Remote Sensing
Volume55
Issue number1
DOIs
Publication statusPublished - 2018 Jan 2

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albedo
communication
ocean
land type
bidirectional reflectance
climate
zenith angle
satellite data
sensor
geometry
climate change
vegetation

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

Cite this

Lee, Chang Suk ; Han, Kyung Soo ; Yeom, Jong Min ; Lee, Kyeong sang ; Seo, Minji ; Hong, Jinkyu ; Hong, Je Woo ; Lee, Keunmin ; Shin, Jinho ; Shin, In Chul ; Chun, Junghwa ; Roujean, Jean Louis. / Surface albedo from the geostationary Communication, Ocean and Meteorological Satellite (COMS)/Meteorological Imager (MI) observation system. In: GIScience and Remote Sensing. 2018 ; Vol. 55, No. 1. pp. 38-62.
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Surface albedo from the geostationary Communication, Ocean and Meteorological Satellite (COMS)/Meteorological Imager (MI) observation system. / Lee, Chang Suk; Han, Kyung Soo; Yeom, Jong Min; Lee, Kyeong sang; Seo, Minji; Hong, Jinkyu; Hong, Je Woo; Lee, Keunmin; Shin, Jinho; Shin, In Chul; Chun, Junghwa; Roujean, Jean Louis.

In: GIScience and Remote Sensing, Vol. 55, No. 1, 02.01.2018, p. 38-62.

Research output: Contribution to journalArticle

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AU - Lee, Chang Suk

AU - Han, Kyung Soo

AU - Yeom, Jong Min

AU - Lee, Kyeong sang

AU - Seo, Minji

AU - Hong, Jinkyu

AU - Hong, Je Woo

AU - Lee, Keunmin

AU - Shin, Jinho

AU - Shin, In Chul

AU - Chun, Junghwa

AU - Roujean, Jean Louis

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