Prof. Yu-Hwan Ahn Profile

Prof. Yu-Hwan Ahn

Principal Research Scientist at Korea Institute of Ocean Science & Technology

SPIE Involvement:

Author

Proceedings Article | 21 November 2012 Paper

Estimation of total suspended matter from three near infrared bands

Joji Ishizaka, Mitsuhiro Toratani, Sinjae Yoo, Yu-Hwan Ahn, Junwu Tang, Yoko Kiyomoto, Sang-Woo Kim

Proceedings Volume 8525, 85250H (2012) https://doi.org/10.1117/12.979669

KEYWORDS: Satellites, Near infrared, Remote sensing, Aerosols, Reflectivity, Ocean optics, Sensors, Algorithm development, Atmospheric corrections, RGB color model

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Proceedings Article | 13 October 2011 Paper

In-orbit image performance simulation for GOCI from integrated ray tracing computation

Seongick Cho, Soomin Jeong, Sug-Whan Kim, Eunsong Oh, Joo-Hyung Ryu, Dongok Ryu, Yukyeong Jeong, Yu-Hwan Ahn

Proceedings Volume 8175, 81751H (2011) https://doi.org/10.1117/12.897989

KEYWORDS: Modulation transfer functions, Mirrors, Ray tracing, Monte Carlo methods, Atmospheric modeling, Mirror pointing, Device simulation, Performance modeling, Satellites, Coastal modeling

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Proceedings Article | 8 October 2011 Paper

In-orbit radiometric performance variations of geostationary ocean color imager

Eunsong Oh, Yu-Hwan Ahn, Sun-Ju Lee, Hee-Jeong Han, Seongick Cho, Joo-Hyung Ryu

Proceedings Volume 8175, 81750Y (2011) https://doi.org/10.1117/12.898372

KEYWORDS: Sensors, Satellites, Sun, Imaging systems, Satellite imaging, CMOS sensors, Satellite communications, Meteorological satellites, Solar energy, Signal detection

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Proceedings Article | 4 November 2010 Paper

Analysis anomaly during trial test and in-orbit test to set up stabilized operation of GOCI

Joung-Mi Ryu, Yu-Hwan Ahn, Sang-Soo Bea, Sun-Ju Lee, Hee-Jeong Han

Proceedings Volume 7861, 786105 (2010) https://doi.org/10.1117/12.873026

KEYWORDS: Image processing, Satellites, Infrared countermeasures, Spectrum analysis, System on a chip, Analytical research, Imaging systems, Data conversion, Data processing, Data backup

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Proceedings Article | 4 November 2010 Paper

Temporal and spatial variability of SST and LST concentrations in the Korea Sea using empirical orthogonal function (EOF) analysis of remote sensing data

Yu-Hwan Ahn, Suk Yoon, Hong Sik Min, Joong-Sun Won, Joo-Hyung Ryu

Proceedings Volume 7858, 78580K (2010) https://doi.org/10.1117/12.870122

KEYWORDS: Satellites, Statistical analysis, Analytical research, Temperature metrology, Remote sensing, Environmental sensing, Climate change, Environmental monitoring, Quantitative analysis, Ocean optics

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Proceedings Article | 4 November 2010 Paper

Spatial and temporal variations of the inherent and apparent optical properties in the sea areas around Korea

Yu-Hwan Ahn, Jee-Eun Min, Joo-Hyung Ryu

Proceedings Volume 7858, 78580F (2010) https://doi.org/10.1117/12.872087

KEYWORDS: Absorption, Optical properties, Ocean optics, Remote sensing, Water, Reflectivity, Algorithm development, Optical character recognition, Satellites, Environmental sensing

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Proceedings Article | 3 November 2010 Paper

Preliminary verification results of the geostationary ocean color satellite data processing software system

Chan-Su Yang, Seongick Cho, Joo-Hyung Ryu, Hee-Jeong Han, Yu-Hwan Ahn

Proceedings Volume 7861, 786108 (2010) https://doi.org/10.1117/12.869658

KEYWORDS: Algorithm development, Data processing, Satellites, Clouds, Atmospheric corrections, Imaging systems, Radiometric corrections, Composites, Infrared countermeasures, Sun

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Proceedings Article | 29 October 2010 Paper

Remote sensing of atmospheric aerosol and ocean color for the COMS/GOCI

Man Wong, Gwan Kim, Young Kim, Yu Ahn, Kwon-Ho Lee

Proceedings Volume 7861, 78610D (2010) https://doi.org/10.1117/12.869533

KEYWORDS: Aerosols, Atmospheric particles, Satellites, Atmospheric modeling, Algorithm development, Reflectivity, Remote sensing, Ocean optics, Optical properties, Sensors

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Proceedings Article | 19 August 2009 Paper

Prelaunch characterization of the Geostationary Ocean Color Imager

Yu-Hwan Ahn, Hee-Jeong Han, Joo-Hyung Ryu, Seongick Cho

Proceedings Volume 7459, 74590I (2009) https://doi.org/10.1117/12.828957

KEYWORDS: Calibration, Diffusers, Satellites, Image acquisition, Diffusion, Satellite imaging, Algorithm development, Sun, Imaging systems, Satellite communications

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Proceedings Article | 19 August 2009 Paper

Development of the GOCI data processing system and establishment of Korea Ocean Satellite Center

Chan-Su Yang, Seongick Cho, Yu-Hwan Ahn, Hee-Jeong Han

Proceedings Volume 7459, 74590H (2009) https://doi.org/10.1117/12.829387

KEYWORDS: Satellites, Data processing, Algorithm development, Ocean optics, Data acquisition, Data storage, Atmospheric corrections, Environmental monitoring, Analytical research, Bidirectional reflectance transmission function

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Proceedings Article | 19 December 2008 Paper

HABs in the northwest Pacific: emergent findings and new directions from SeaWiFS and other data

Yu-Hwan Ahn, Palanisamy Shanmugam

Proceedings Volume 7150, 71500P (2008) https://doi.org/10.1117/12.804767

KEYWORDS: Water, Magnesium, Satellites, Remote sensing, Oceanography, Biological research, Current controlled current source, Organisms, Climate change, Atmospheric corrections

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Proceedings Article | 19 December 2008 Paper

Marine environmental change monitoring according to the dyke construction using Landsat TM/ETM+ data in the Saemangeum coastal area of Korea

Seok Lee, Yu-Hwan Ahn, Jee-Eun Min, Joo-Hyung Ryu

Proceedings Volume 7150, 71501O (2008) https://doi.org/10.1117/12.804939

KEYWORDS: Landsat, Satellites, Earth observing sensors, Water, Environmental monitoring, Satellite imaging, Ocean optics, Algorithm development, Oceanography, Floods

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Proceedings Article | 19 December 2008 Paper

Suspended sediment transport mapped by satellite remote sensing

P. Shanmugam, B. Suk, H. Yoo, Y. Ahn, J. Ryu

Proceedings Volume 7150, 71501G (2008) https://doi.org/10.1117/12.804770

KEYWORDS: Satellites, Signal attenuation, Backscatter, Particles, Remote sensing, Earth observing sensors, Mouth, Classification systems, Image classification, Algorithm development

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Proceedings Article | 19 December 2008 Paper

A depth-resolved primary production model for stratified water in the Yellow Sea

Yu-Hwan Ahn, Jisoo Park, Sinjae Yoo

Proceedings Volume 7150, 71500Z (2008) https://doi.org/10.1117/12.805233

KEYWORDS: Particle filters, Satellites, Signal attenuation, Magnesium, Data analysis, Temperature metrology, Photosynthesis, Error analysis, Data modeling, Luminescence

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Proceedings Article | 28 November 2006 Paper

Atmospheric correction of satellite ocean color data in turbid coastal waters

Palanisamy Shanmugam, Yu-Hwan Ahn, Joo-Hyung Ryu

Proceedings Volume 6406, 64061P (2006) https://doi.org/10.1117/12.695398

KEYWORDS: Aerosols, Atmospheric corrections, Satellites, Atmospheric particles, Near infrared, Water, Environmental sensing, Atmospheric modeling, Image retrieval, Data modeling

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Proceedings Article | 23 August 2005 Paper

New method for detecting red tide algal blooms in high scattering and absorbing waters using satellite ocean color imagery

Yu-Hwan Ahn, Palanisamy Shanmugam

Proceedings Volume 5885, 58850J (2005) https://doi.org/10.1117/12.614303

KEYWORDS: Satellites, Scattering, Earth observing sensors, Satellite imaging, Image processing, Water, Remote sensing, Algorithm development, Atmospheric corrections, Biological research

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Showing 5 of 16 publications

SPIE Conference Volume | 27 October 2010

Geostationary Ocean Color Imager (GOCI) Technical Development, Operation, and Applications

Conference Committee Involvement (5)

Geostationary Ocean Color Imager (GOCI) Technical Development, Operation, and Applications

12 October 2010 | Incheon, Korea, Republic of

SPIE Asia-Pacific Remote Sensing

11 October 2010 | Incheon, Korea, Republic of

SPIE Asia-Pacific Remote Sensing

11 October 2010 | Incheon, Korea, Republic of

SPIE Asia-Pacific Remote Sensing

17 November 2008 | Noumea, New Caledonia

Remote Sensing of the Marine Environment

15 November 2006 | Goa, India

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