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Byung-Ju Sohn, B. J. Sohn

School of Earth and Environmental Science, Seoul National University
Major: Satellite Meteorology

Contact
· E-mail: sohn@snu.ac.kr
· Tel: +82-2-880-7783
· Fax: +82-2-872-8156
· Office: room 523, building 501
Professoinal Background
Byung-Ju Sohn, Professor of School of Earth and Environmental Sciences, Seoul National University, Seoul, was born in 1956 in Korea. He began his studies at Seoul National University (SNU) in 1976. He earned a B.S. in Earth Sciences and an M.S. in Meteorology from Seoul National University in 1980 and 1985, respectively. He received a Ph.D. in meteorology at the Florida State University in 1990 with the dissertation entitled "Cloud and surface control on the earth's net radiation balance and the role of atmospheric/oceanic energy transports: A satellite perspective". The dissertation work based on earth radiation budget measurements from the Nimbus-7 satellite emphasizes clouds as an important modulator in global climate changes by demonstrating that the combination of cloud albedo (solar reflection) and cloud greenhouse effect (trapping of longwave radiation) leads to energy loss to the space, which results in overall cooling by clouds. It is believed that the results found in the study lead to a better understanding of earth's climate and improvements in modeling the earth system.

He was the recipient of 1991 Seymour Hess Doctoral Dissertation Award that is granted to the Ph.D. graduate in recognition of the best Ph.D. dissertation from the Meteorology Department of The Florida State University during the preceding three years. His dissertation had also been selected as one of final three for the Universities Microfilms International Dissertation Award by U.S. Council of Graduate Schools, for the outstanding Ph.D. dissertation in the physical sciences fields, during the period from July 1989 to June 1991.

After a brief post-doctoral work at the Florida State University he moved to NASA Marshall Space Flight Center in Huntsville, AL and was employed by USRA for the next two and half years until he joined the Seoul National University faculty in 1993. During the span between 1993 and 2005, he has served as a faculty member of SNU while being active in various professional societies and committees in Korea, such as a treasurer of Korean Meteorological Society and a councilor of Korean Society of Remote Sensing. He also has served the International Radiation Commission (IRC) as an elected commissioner since 2001. The role of the International Radiation Commission under IAMAP is to promote research into atmospheric radiation as well as application of that research to practical problems. The Wolbong Scholar Award was given to him in year 2004 by the Korean Meteorological Society for the outstanding scholar in the filed of physical meteorology.

In 2004, he hosted the International Radiation Symposium 2004 (IRS’04) at Busan and served as a Chairman of Local Organizing Committee (LOC). IRS is the symposium organized by IRC at every four years. The pervious one was held in St. Petersburg in year 2000.
Current Researches
Current researches include algorithm developments for COMS (Korean Geostationary Satellite), MSG application for studying the water vapor-cloud-radiation budget problems, water vapor transport studies using satellite-derived hydrological data, and Global Precipitation Measurements (GPM) related researches. He has published over 40 papers in peer-reviewed journals, including Journal of Atmospheric Sciences, Journal of Climate, Journal of Applied Meteorology, and Bulletin of American Meteorological Society, Journal of Geophysical Research, and Journal of Meteorological Society of Japan.
Publication
  1. 154. Su, M., Liu, C., Di, D., Le, T., Li, J., Lu, F. Lu, P., Zhang, and B.-J. Sohn, 2023: A multi-domain compression radiative transfer model for the Fengyun-4 Geosynchronous Interferometric Infrared Sounder (GIIRS). Advances in Atmospheric Sciences, Accepted, .
  2. 153. Teng, S., Liu, C., Tan, Z., Li, J., Xu, N., Hu, X., Zhang, P., Yan, W., and Sohn, B.-J., 2023: A multispectral method for retrieving overlapping cloud top heights from passive radiometers.. Remote Sensing of Environment, 286, 113425, doi: 10.1016/j.rse.2022.113425. [PDF]
  3. 152. Wang, F., Liu, C., Yao, B., Hu, X., Zhang, P., and Sohn, B.-J., 2023: Cloud-target calibration for Fengyun-3D MERSI-II solar reflectance bands: model development and instrument stability. IEEE Transactions on Geoscience and Remote Sensing, Early Online Release, doi: 10.1109/TGRS.2023.3244949..
  4. 151. Kim, J.-M., B.-J. Sohn, S.-M. Lee, H. Shi, Y.-J. Kwon, S.-W. Kim, and H.-C. Kim, 2022: The estimation of the total freeboard of Arctic sea ice in winter using passive microwave satellite measurements. J. Atmos. Ocean. Tech., Early Online Release, doi: 10.1175/JTECH-D-21-0105.1. [PDF]
  5. 150. Zhou, G., J. Wang, Y. Yin, X. Hu, H. Letu, B.-J. Sohn, Y. L. Yung, and C. Liu, 2022: Detecting supercooled water clouds using passive radiometer measurements. Geophys. Res. Lett., 49(4), e2021GL096111, doi: 10.1029/2021GL096111.
  6. 149. Lee, S.-M., A. J. Gasiewski, and B.-J. Sohn, 2021: Influences of two-scale roughness parameters on the ocean surface emissivity from satellite passive microwave measurements. IEEE Transactions on Geoscience and Remote Sensing, 60, 4204112, doi: 10.1109/TGRS.2021.3105915. [PDF]
  7. 148. Park, C.-K., M. Chang, C.-H. Ho, K.-J. Ha, J. Kim, and B.-J. Sohn, 2021: Two types of diurnal variations in heavy rainfall during July over Korea. Adv. Atmos. Sci., Accepted.
  8. 147. Lee, S.-M., H. Shi, B.-J. Sohn, A. J. Gasiewski, W. N. Meier, and G. Dybkjær, 2021: Winter snow depth on Arctic sea ice from satellite radiometer measurements (2003-2020): Regional patterns and trends. Geophys. Res. Lett., Accepted, doi: 10.1029/2021GL094541. [PDF]
  9. 146. Liu, C., S. Yang, D. Di, Y. Yang, C. Zhou, X. Hu, and B.-J. Sohn, 2021: A Machine Learning-based Cloud Detection Algorithm for the Himawari-8 Spectral Image. Adv. Atmos. Sci., Accepted, doi: 10.1007/s00376-021-0366-x. [PDF]
  10. 145. Lee, S.-M., and B.-J. Sohn, 2021: A new description of small-scale and large-scale roughness in the fast ocean surface emissivity model. J. Atmos. Ocean. Technol., 38(3), 501-510, doi: 10.1175/JTECH-D-20-0065.1. [PDF]
  11. 144. Kang, E. J., B. J. Sohn, R. T. Tonboe, G. Dybkjær, K. Holmlund, J. M. Kim, and C. Liu, 2021: Implementation of a 1‐D thermodynamic model for simulating the winter‐time evolvement of physical properties of snow and ice over the Arctic Ocean.. J. Adv. Model. Earth. Sy., 13 (3), e2020MS002448., doi: 10.1029/2020MS002448. [PDF]
  12. 143. Ryu, J., H.-J. Song, B.-J. Sohn, and C. Liu, 2021: Global distribution of three types of drop size distribution representing heavy rainfall from GPM/DPR measurements. Geophys. Res. Lett., 48(3), e2020GL090871, doi: 10.1029/2020GL090871. [PDF]
  13. 142. Lee, S.-M., W. N. Meier, B.-J. Sohn, H. Shi, and A. J. Gaskiewski, 2021: Estimation of Arctic Basin-Scale Sea Ice Thickness from Satellite Passive Microwave Measurements. IEEE Transactions on Geoscience and Remote Sensing, 59(7), 5841-5850, doi: 10.1109/TGRS.2020.3026949. [PDF]
  14. 141. Kim, J. M., B. J. Sohn, S. M. Lee, R. T. Tonboe, E. J. Kang, and H. C. Kim, 2020: Differences between ICESat and CryoSat‐2 sea ice thicknesses over the Arctic: Consequences for analyzing the ice volume trend. J. Geophys. Res: Atmospheres, 125(22), e2020JD033103, doi: 10.1029/2020JD033103. [PDF]
  15. 140. Shi, H., B.-J. Sohn, G. Dybkjaer, R. T. Tonboe, and S.-M. Lee, 2020: Simultaneous estimation of wintertime sea ice thickness and snow depth from space-borne freeboard measurements. The Cryosphere, 14, 3761–3783, doi: 10.5194/tc-14-3761-2020. [PDF]
  16. 139. Teng, S., C. Liu, Z. Zhang, Y. Wang, B. J. Sohn, and Y. L. Yung, 2020: Retrieval of Ice-Over-Water Cloud Microphysical and Optical Properties Using Passive Radiometers. Geophys. Res. Lett., 47(16), e2020GL088941, doi: 10.1029/2020GL088941. [PDF]
  17. 138. Yao, B., C. Liu, S. Teng, L. Bi, Z. Zhang, P. Zhang, and B.-J. Sohn, 2020: An accurate and efficient radiative transfer model for simulating all-sky images from Fengyun satellite radiometers. Science China Earth Sciences, 63, 1701-1713, doi: 10.1007/s11430-020-9617-9. [PDF]
  18. 137. Lee, A., B. J. Sohn, Ed. Pavelin, Y. Kim, H.-S. Kang, R. Saunders, and Y.-C. Noh, 2020: Assessment of cloud retrieval for IASI 1D-Var cloudy-sky assimilation and improvement with an ANN approach. Weather Forecast., 35(4), 1363-1380, doi: 10.1175/WAF-D-19-0218.1. [PDF]
  19. 136. Song, H.-J., and B. J. Sohn, 2020: Polarizing rain types linked to June drought in the Korean peninsula over last 20 years. Int. J. Clim., 40, 2173-2182, doi: 10.1002/joc.6325. [PDF]
  20. 135. Lee, H., Song, H.-J., and B. J. Sohn, 2020: Possible mechanisms of long-term trend of June rainfall over the Korean peninsula. Asia-Pac. J. Atmos. Sci., 57, 51-62, doi: 10.1007/s13143-019-00170-5. [PDF]
  21. 134. Noh, Y.-C., B. J. Sohn, and Y. Kim, 2019: The Impact of a New Set of IASI Channels on the Unified Model Global Precipitation Forecast. Asia-Pac. J. Atmos. Sci., 55, doi: 10.1007/s13143-019-00129-6. [PDF]
  22. 133. B. J. Sohn, S.-W. Yeh, A. Lee, and W.K.M. Lau, 2019: Regulation of atmospheric circulation controlling the tropical Pacific precipitation change in response to CO2 increases. Nat. Commun., 10, 1108, doi: 10.1038/s41467-019-08913-8. [PDF]
  23. 132. Lee, S.-M., B. J. Sohn, and C. D. Kummerow, 2018: Long-term Arctic snow/ice interface temperature from special sensor for microwave imager measurements. Remote Sens., 10, 1795, doi: 10.3390/rs10111795. [PDF]
  24. 131. Lee, S.-M., B. J. Sohn, and H. Shi, 2018: Impact of ice surface and volume scatterings on the microwave sea ice apparent emissivity. J. Geophys. Res. Atmos., 123, 9920-9237, doi: 10.1029/2018JD028688. [PDF]
  25. 130. Song, H.-J., and B. J. Sohn, 2018: An evaluation of WRF microphysics schemes for simulating the warm-type heavy rain over the Korean peninsula. Asia-Pac. J. Atmos. Sci., 54, 1-12, doi: 10.1007/s13143-018-0006-2. [PDF]
  26. 129. Lee, S.-S., E.-H. Lee, B.-J. Sohn, H. C. Lee, J. H. Cho, and S.-B. Ryoo, 2017: Improved dust forecast by assimilating MODIS IR-based nighttime AOT in the ADAM2 model. SOLA, 13, 192-198, doi: doi:10.2151/sola.2017-035. [PDF]
  27. 128. Noh, Y.-C., B. J. Sohn, Y. Kim, S. Joo, W. Bell, and R. Saunders, 2017: A New Infrared Atmospheric Sounding Interferometer Channel Selection and Assessment of Its Impact on Met Office NWP Forecasts. Adv. Atmos. Sci., 34, 1265-1281. [PDF]
  28. 127. Yim, B. Y., S.-W. Yeh, H.-J. Song, D. Dommenget, and B. J. Sohn, 2017: Land-sea thermal contrast determines the trend of Walker circulation simulated in atmospheric general circulation models. Geophys. Res. Lett., 44, 5854-5862, doi: 10.1002/2017GL073778. [PDF]
  29. 126. Lee, S.-M., B.-J. Sohn, and S.-J. Kim, 2017: Differentiating between first-year and multiyear sea ice in the Arctic using microwave-retrieved ice emissivities. J. Geophys. Res. Atmos., 122, 5097-5112, doi: 10.1002/2016JD026275. [PDF]
  30. 125. Jang, H.-S., B. J. Sohn, H.-W. Chun, J. Li, and E. Weisz, 2017: Improved AIRS temperature and moisture soundings with local a priori information for the 1DVAR method. J. Atmos. Oceanic Technol., 34(5), 1083-1095, doi: 0.1175/JTECH-D-16-0186.1. [PDF]
  31. 124. Song, H.-J., B. J. Sohn, S.-Y. Hong, and T. Hashino, 2017: Idealized numerical experiments on the microphysical evolution of warm-type heavy rainfall. J. Geophys. Res. Atmos., 122, 1685-1699, doi:10.1002/2016JD025637. [PDF]
  32. 123. Han, H.-J., J. Li, M. Goldberg, P. Wang, J. Li, Z. Li, B.-J. Sohn, and J. Li, 2016: Microwave Sounder Cloud Detection Using a Collocated High-Resolution Imager and Its Impact on Radiance Assimilation in Tropical Cyclone Forecasts. Monthly Weather Review, 144, 3937-3959, doi: 10.1175/MWR-D-15-0300.1. [PDF]
  33. 122. Noh, Y.-C., B. J. Sohn, Y. Kim, S. Joo, and W. Bell, 2016: Evaluation of temperature and humidity profiles of Unified Model and ECMWF analyses using GRUAN radiosonde observations. MDPI Atmosphere, 7, doi: 10.3390/atmos7070094. [PDF]
  34. 121. Shi, H., S.-S. Lee, H.-W. Chun, H.-J. Song, Y.-C. Noh, and B. J. Sohn, 2016: Optical properties of aerosols related to haze events over Seoul inferred from skyradiometer and satellite-borne measurements. Atmosphere, Korean Meteorol. Soc., 26, 289-299. [PDF]
  35. 120. Sohn, B. J., S. Lee, E.-S. Chung, and H.-J. Song, 2016: The role of the dry static stability for the recent change in the Pacific Walker Circulation. J. Clim., 29, 2765-2779. [PDF]
  36. 119. Khatri P., T. Takamura, T. Nakajima, V. Estelles, H. Irie, H. Kuze, M. Campanelli, A. Sinyuk, S.-M., Lee, B. J. Sohn, G. Padhithurai, S.-W. Kim, S. C. Yoon, J. A. M. Lozano, M. Hashimoto, P. C. S. Devara, and N. Manago, 2016: Factors for inconsistent aerosol single scattering albedo between SKYNET and AERONET. J. Geophy. Res. Atmos., 121, 1859-1877, doi: 10.1002/2015JD023976. [PDF]
  37. 118. Yim, B. Y., S.-W, Yeh, and B. J. Sohn, 2016: ENSO-related precipitation and its statistical relationship with the Walker circulation trend in CMIP5 AMIP models. Atmosphere, 7, 1-10. [PDF]
  38. 117. Sohn, B. J., M.-J. Choi, and J. Ryu, 2015: Explaining darker deep convective clouds over the western Pacific than over tropical continental convective regions. Atmos. Meas. Tech., 8, 4573-4585. [PDF]
  39. 116. Asrar, G., S. Bony, O. Boucher, A. Busalacchi, A. Cazenave, M. Dowell, G. Flato, G. Hegerl, E. Källén, T. Nakajima, A. Ratier, R. Saunders, J. Slingo, B. J. Sohn, J. Schmetz, B. Stevens, P. Zhang, and F. Zwiers, 2015: Climate Symposium 2014 – Findings and recommendations. Bull. Amer. Meteorol. Soc., 9, ES145-ES147. [PDF]
  40. 115. Kim, M.-H., H. Yeo, N. Sugimoto, H.-C. Lim, C.-K. Lee, B.-H. Heo, Y.-S. Yu, B. J. Sohn, S.-C. Yoon, and S.-W. Kim, 2015: Estimation of particle mass concentration from lidar measurement. Atmosphere, Korean Meteorol. Soc., 25, 169-177. [PDF]
  41. 114. Ningombam, S. S., S. P. Bagare, P. Khatri, B. J. Sohn, and H.-J. Song, 2015: Estimation of aerosol radiative forcing over an aged-background aerosol feature during advection and non-advection events using a ground-based data obtained from a Prede Skyradiometer observation. Atmos. Res., 164-165, 76-83. [PDF]
  42. 113. Lee, S.-M., and B. J. Sohn, 2015: Retrieving the refractive index, emissivity, and surface temperature of polar sea ice from 6.9 GHz microwave measurements: A theoretical development. J. Geophys. Res. Atmos., 120, 2293-2305. [PDF]
  43. 112. Song, H.-J., and B. J. Sohn, 2015: Two heavy rainfall types over the Korean peninsula in the humid East Asian summer environment: A satellite observation study. Mon. Weather Rev., 143, 363-382. [PDF]
  44. 111. Ningombam, S. S., S. P. Bagare, A. K. Srivastava, B. J. Sohn, H.-J. Song, and E. Larson, 2014: Aerosol radiative forcing over a high-altitude station Merak, in the trans-Himalayan region during advection of anthropogenic events from the Indo-Gangetic Plain. Atmos. Environ., 98, 253-259. [PDF]
  45. 110. Chung, E.-S., B. J. Soden, B. J. Sohn, and L. Shi, 2014: Upper tropospheric moistening in response to anthropogenic warming. Proc. Natl. Acad. Sci. U. S. A., 111, 11636-11641. [PDF]
  46. 109. Song, H.-J., B. J. Sohn, H.-W. Chun, Y. Chun, and S.-S. Lee, 2014: Improved cloud screening method for the analysis of sky radiometer measurements and application to Asian dust detection. J. Meteorol. Soc. Jpn., 92A, 167-183. [PDF]
  47. 108. Chun, H.-W., and B. J. Sohn, 2014: Climatological assessment of desert targets over East Asia - Australian region for the solar channel calibration of geostationary satellites. Asia-Pac. J. Atmos. Sci., 50, 239-246. [PDF]
  48. 107. Kim, B. R., S.-H. Ham, D.-H. Kim, and B. J. Sohn, 2014: Post-flight radiometric calibration of the Korean geostationary satellite COMS Meteorological Imager. Asia-Pac. J. Atmos. Sci., 50, 201-210. [PDF]
  49. 106. Sohn, B. J., G.-H. Ryu, H.-J. Song, and M.-L. Ou, 2013: Characteristic features of warm-type rain producing heavy rainfall over the Korean peninsula inferred from TRMM measurements. Mon. Weather Rev., 141, 3873-3888. [PDF]
  50. 105. Ham, S.-H., B. J. Sohn, S. Kato, and M. Satoh, 2013: Vertical structure of ice cloud layers from CloudSat and CALIPSO measurements and comparison to NICAM simulations. J. Geophys. Res. Atmos., 118, 9930-9947. [PDF]
  51. 104. Chung. E.-S., B. J. Soden, B. J. Sohn, and J. Schmetz, 2013: An assessment of the diurnal variation of upper tropospheric humidity in reanalysis data sets. J. Geophys. Res. Atmos., 118, 3425–3430. [PDF]
  52. 103. Sohn, B. J., S.-W. Yeh, J. Schmetz, and H.-J. Song, 2013: Observational evidences of Walker circulation changes over the last 30 years contrasting with GCM results. Clim. Dyn., 40, 1721-1732. [PDF]
  53. 102. Han, H.-J. and B. J. Sohn, 2013: Retrieving Asian dust AOT and height from hyperspectral sounder measurements: An artificial neural network approach. J. Geophys. Res. Atmos., 118, 837–845. [PDF]
  54. 101. Sohn, B. J., and S. M. Lee, 2013: Analytical relationship between polarized reflectivities on the specular surface. Int. J. Remote Sens., 7, 2368-2374. [PDF]
  55. 100. Sohn, B. J., H.-W. Chun, H.-J. Song, Y.-C. Noh, S.-M. Lee, S.-S. Lee, and Y.-S. Chun, 2013: Physical explanation of the weakened brightness temperature difference signal over the Yellow Sea during a dust event: case study for March 15-16, 2009. Asia-Pac. J. Atmos. Sci., 49, 41-48. [PDF]
  56. 99. Kwon, E.-H., B. J. Sohn, W. L. Smith, and J. Li, 2012: Validating IASI temperature and moisture sounding retrievals over East Asia using radiosonde observations. J. Atmos. Ocean. Technol., 29, 1250-1262. [PDF]
  57. 98. Yao, Z., J. Li, H.-J. Han, A. Huang, B. J. Sohn, and P. Zhang, 2012: Asian dust height and infrared optical depth retrievals over land from hyperspectral longwave infrared radiances. J. Geophys. Res., 117, D19202, doi:10.1029/2012JD017799. [PDF]
  58. 97. Seo, K.-W., D. E. Waliser, B. Tian, B.-M. Kim, S.-C. Park, S. Cocke, B. J. Sohn, and M. Ishii, 2012: Evidence of recent changes in global trends of fresh water discharge and evapotranspiration revealed by recent reanalysis and satellite observations. Asia-Pac. J. Atmos. Sci., 48, 153-158. [PDF]
  59. 96. Han, H.-J., B. J. Sohn, H.-L. Huang, E. Weisz, R. Saunders, and T. Takamura, 2012: An improved radiance simulation for hyperspectral infrared remote sensing of Asian dust. J. Geophys. Res., 117, D09211, doi:10.1029/2012JD017466. [PDF]
  60. 95. Lee, S.-S., and B. J. Sohn, 2012: Nighttime AOT retrieval for Asian dusts from MODIS IR measurements: An artificial neural network approach. J. Meteorol. Soc. Jpn., 90, 163-177. [PDF]
  61. 94. Chun, H.-W., B. J. Sohn, D.-H. Kim, M.-H. Ahn, and M.-L. Ou, 2012: Solar channel calibration using desert targets in Australia: Application to the MTSAT-1R visible sensor. J. Meteorol. Soc. Jpn., 90, 191-205. [PDF]
  62. 93. Ham, S.-H., and B. J. Sohn, 2012: Vertical homogeneity assumption causing inconsistency between visible and infrared-based cloud optical properties. IEEE Geosci. Remote Sens. Lett., 9, 531-535. [PDF]
  63. 92. Ryu, G.-H., B. J. Sohn, C. D. Kummerow, E.-K. Seo, and G. J. Tripoli, 2012: Rain rate characteristics over the Korean peninsula and improvement of the Goddard Profiling (GPROF) database for TMI rainfall retrievals. J. Appl. Meteorol. Climatol., 51, 786–798. [PDF]
  64. 91. Kwon, E.-H., J. Li, J. Li, B. J. Sohn, and E. Weisz, 2012: Use of total precipitable water classification of a priori error and quality control in atmospheric temperature and water vapor sounding retrieval. Adv. Atmos. Sci., 29, 263-273. [PDF]
  65. 90. Choi, Y.-J., Y.-S. Ghim, and B. J. Sohn, 2011: Comparison of aerosol optical properties from different models of skyradiometer. Atmosphere, Korean Meteorol. Soc., 21, 311-317. [PDF]
  66. 89. Lee, E.-H., and B. J. Sohn, 2011: Recent increasing trend in dust frequency over Mongolia and Inner Mongolia regions and its association with climate and surface condition change. Atmos. Environ., 45, 4611-4616. [PDF]
  67. 88. Kim, M.-H., S.-W. Kim, S.-C. Yoon, N. Sugimoto, and B. J. Sohn, 2011: Characteristics of the lidar ratio determined from lidar and sky radiometer measurements in Seoul. Atmosphere, Korean Meteorol. Soc., 21, 57-67. [PDF]
  68. 87. Chung, E.-S., B. J. Soden, B. J. Sohn, and J. Schmetz, 2011: Model-simulated humidity bias in the upper troposphere and its relation to the large-scale circulation. J. Geophys. Res., 116, D10110, doi:10.1029/2011JD015609. [PDF]
  69. 86. Kim, S.-W., E.-S. Chung, S.-C. Yoon, B. J. Sohn, and N. Sugimoto, 2011: Intercomparisons of cloud-top and cloud-base heights from ground-based Lidar, CloudSat, CALIPSO measurement. Int. J. Remote Sens., 32, 1179-1197. [PDF]
  70. 85. Jang, H.-S., H.-J. Song, H.-W. Chun, B. J. Sohn, and T. Takamura, 2011: Validation of MODIS-derived aerosol optical thickness using SKYNET measurements over East Asia. J. Korean Earth Sci. Soc., 32, 21-32. [PDF]
  71. 84. Sohn, B. J., T. Nakajima, M. Satoh, and H.-S. Jang, 2010: Impact of different definitions of clear-sky flux on the determination of longwave cloud radiative forcing: NICAM simulation results. Atmos. Chem. Phys., 10, 11641-11646. [PDF]
  72. 83. Sohn, B. J., B. R. Kim, and S. S. Lee, 2010: Possible shift of spectral response function of the MODIS 6.8 μm water vapor channel causing a cold bias of 2–3 K. Atmos. Meas. Tech., 3, 1667-1672. [PDF]
  73. 82. Ham, S.-H., and B. J. Sohn, 2010: Assessment of the calibration performance of satellite visible channels using cloud targets: Application to Meteosat-8/9 and MTSAT-1R. Atmos. Chem. Phys., 10, 11131-11149. [PDF]
  74. 81. Thu, N. V., and B. J. Sohn, 2010: Half-hourly rainfall monitoring over the Indochina area from MTSAT infrared measurements: Development of rain estimation algorithm using an artificial neural network. J. Korean Earth Sci. Soc., 31, 465-474. [PDF]
  75. 80. Lee, J., J. Kim, C. H. Song, S. B. Kim, Y. S. Chun, B. J. Sohn, and B. N. Holben, 2010: Characteristics of aerosol types from AERONET sunphotometer measurements. Atmos. Environ., 44, 3110-3117. [PDF]
  76. 79. Sohn, B. J., and S.-C. Park, 2010: Strengthened tropical circulations in past three decades inferred from water vapor transport. J. Geophys. Res., 115, D15112, doi:10.1029/2009JD013713. [PDF]
  77. 78. Park, H.-S., and B. J. Sohn, 2010: Recent trends in changes of vegetation over East Asia coupled with temperature and rainfall variations. J. Geophys. Res., 115, D14101, doi:10.1029/2009JD012752. [PDF]
  78. 77. Chung, E.-S., B. Soden, and B. J. Sohn, 2010: Revisiting the determination of climate sensitivity from relationships between surface temperature and radiative fluxes. Geophys. Res. Lett., 37, L10703, doi:10.1029/2010GL043051. [PDF]
  79. 76. Seo, E.-K., G. Liu, M.-S. Suh, and B. J. Sohn, 2010: The varying response of microwave signatures to different types of overland rainfall found over the Korean peninsula. J. Atmos. Ocean. Technol., 27, 785-792. [PDF]
  80. 75. Sohn, B. J., H.-J. Han, E.-K. Seo, 2010: Validation of satellite-based high-resolution rainfall products over the Korean peninsula using data from a dense rain gauge network. J. Appl. Meteorol. Climatol., 49, 701-714. [PDF]
  81. 74. Kwon, E.-H., B. J. Sohn, J. Schmetz, and P. Watts, 2010: Intercomparison of height assignment methods for opaque clouds over the tropics. Asia-Pac. J. Atmos. Sci., 46, 11-19. [PDF]
  82. 73. Sohn, B. J., S.-H. Ham, and P. Yang, 2009: Possibility of the visible-channel calibration using deep convective clouds overshooting the TTL. J. Appl. Meteorol. Climatol., 48, 2271-2283. [PDF]
  83. 72. Ham, S.-H., B. J. Sohn, P. Yang, and B. A. Baum, 2009: Assessment of the quality of MODIS cloud products from radiance simulations. J. Appl. Meteor. Climatol., 48, 1591-1612. [PDF]
  84. 71. Turk, F. J., B. J. Sohn, H.-J. Oh, E. E. Ebert, V. Levizzani, E. A. Smith, and R. Ferraro, 2009: Validating a rapid-update satellite precipitation analysis across telescoping space and time scales. Meteorol. Atmos. Phys., 105, 99-108. [PDF]
  85. 70. Lee, E.-H., and B. J. Sohn, 2009: Examining the impact of wind and surface vegetation on the Asian dust occurence over three classified source regions. J. Geophys. Res., 114, D06205, doi:10.1029/2010GL043051. [PDF]
  86. 69. Chung, E.-S., B. J. Sohn, and J. Schmetz, 2009: Diurnal variation of outgoing longwave radiation associated with high cloud and UTH changes from Meteosat-5 measurements. Meteorol. Atmos. Phys., 105, 109-119. [PDF]
  87. 68. Chun, H.-W., and B. J. Sohn, 2009: Examining influences of Asian dust on SST retrievals over the East Asian sea waters using NOAA AVHRR data. Korean J. Remote Sens., 25, 45-59. [PDF]
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  89. 66. Sohn, B. J., and R. Bennartz, 2008: Contribution of water vapor to observational estimates of longwave cloud radiative forcing. J. Geophys. Res., 113, D20107, doi:101029/2008JD010053. [PDF]
  90. 65. Park, H.-S., B. J. Sohn, and E.-S. Chung, 2008: Estimation of total precipitable water from MODIS infrared measurements over East Asia. Korean J. Remote Sens., 24, 309-324. [PDF]
  91. 64. Sohn, B. J., H.-S. Park, H.-J. Han, and M.-H. Ahn, 2008: Evaluating the calibration of MTSAT-1R infrared channels using collocated Terra MODIS measurements. Int. J. Remote Sens., 29, 3033-3042. [PDF]
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  93. 62. Kim, S.-Y., and B. J. Sohn, 2008: MODIS-estimated microphysical properties of clouds developed in the presence of biomass burning aerosols. Korean J. Remote Sens., 24, 289-298. [PDF]
  94. 61. Sohn, B. J., J. Schmetz, and E.-S. Chung, 2008: Moistening processes in the tropical upper troposphere observed from Meteosat measurements. J. Geophys. Res., 113, D13109, doi:101029/2007JD009527. [PDF]
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  96. 59. Kim, J.-G., B. J. Sohn, E.-S. Chung, and H.-W. Chun, 2008: Simulation of TOA visible radiance for the ocean target and its possible use for satellite sensor calibration. Korean J. Remote Sens., 24, 535-549. [PDF]
  97. 58. Kwon, E.-H., B. J. Sohn, D.-E. Chang, M.-H. Ahn, and S. Yang, 2008: Use of numerical forecasts for improving TMI rain retrievals over the mountainous area in Korea. J. Appl. Meteorol. Climatol., 47, 1995-2007. [PDF]
  98. 57. Takamura, T., N. Sugimoto, A. Shimizu, A. Uchiyama, A. Yamazaki, K. Aoki, T. Nakajima, B. J. Sohn, and H. Takenaka, 2007: Aerosol radiative characteristics at Gosan, Korea, during the Atmospheric Brown Cloud East Asian Regional Experiment 2005. J. Geophys. Res., 112, D22S36, doi:101029/2007JD008506. [PDF]
  99. 56. Chung, E.-S., B. J. Sohn, J. Schmetz, and M. Koenig, 2007: Diurnal variation of upper tropospheric humidity and its relations to convective activities over tropical Africa. Atmos. Chem. Phys., 7, 2489-2502. [PDF]
  100. 55. Seo, E.-K., B. J. Sohn, and G. Liu, 2007: How TRMM precipitation radar and microwave imager retrieved rain rates differ. Geophys. Res. Lett., 34, L24803, doi:101029/2007GL032331. [PDF]
  101. 54. Sohn, B. J., T. Nakajima, H.-W. Chun, and K. Aoki, 2007: More absorbing dust aerosol inferred from sky radiometer measurements at Anmyeon, Korea. J. Meteorol. Soc. Jpn., 85, 815-823. [PDF]
  102. 53. Nakajima, T., S.-C. Yoon, V. Ramanathan, G.-Y. Shi, T. Takemura, A. Higurashi, T. Takamura, K. Aoki, B. J. Sohn, H. Tsuruta, N. Sugimoto, A. Shimizu, Y. Sawa, N.-H. Lin, C.-T. Lee, D. Goto, M. Yamano, and N. Schutgens, 2007: Overview of the ABC EAREX 2005 regional experiment and a study of the aerosol direct radiative forcing in the East Asia. J. Geophys. Res., 112, D24S91, doi:101029/2007JD009009. [PDF]
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  104. 51. Park, S.-C., B. J. Sohn, and B. Wang, 2007: Satellite assessment of divergent water vapor transport from NCEP, ERA40, and JRA25 reanalyses over the Asian summer monsoon region. J. Meteorol. Soc. Jpn., 85, 615-632. [PDF]
  105. 50. Sohn, B. J., and G.-H. Ryu, 2007: Seasonally varying reference atmospheres for east Asia. Adv. Atmos. Sci., 24, 181-190. [PDF]
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  107. 48. Yoon, S.-C., S.-W. Kim, J.-Y. Kim, B. J. Sohn, A. Jefferson, S.-J. Choi, D.-H. Cha, D.-K. Lee, T. L. Anderson, S. J. Doherty, and R. J. Weber, 2006: Enhanced water vapor in Asian dust layer: Entrainment processes and implication for aerosol optical properties. Atmos. Environ., 40, 2409-2421. [PDF]
  108. 47. Park, S.-H., B. J. Sohn, E.-S. Chung, M. Koeing, 2006: Estimating stability indices from the MODIS infrared measurements over the Korean peninsula. Korean J. Remote Sens., 22, 469-483. [PDF]
  109. 46. Hwang, S.-H., and B. J. Sohn, 2006: Evaluation of vertical ozone profiles from ozonesonde over Pohang, Korea against coinciding HALOE datasets. J. Korean Earth Sci. Soc., 22, 778-786. [PDF]
  110. 45. Costa, M. J., B. J. Sohn, V. Levizzani, and A. M. Silva, 2006: Radiative forcing of Asian dust determined from the synergized GOME and GMS satellite data - A case study. J. Meteorol. Soc. Jpn., 84, 85-95. [PDF]
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  112. 43. Koo, J.-Y., and B. J. Sohn, 2005: Development of water vapor retrieval algorithm from the sensor simulations for AMSR and HSB of Aqua satellite. J. Korean Meteorol. Soc., 41, 625-638. [PDF]
  113. 42. Urm, Y.-D, and B. J. Sohn, 2005: Estimation of aerosol optical thickness over East Asia using GMS-5 visible channel measurements. Atmosphere, Korean Meteorol. Soc., 15, 203-211. [PDF]
  114. 41. Yoon, S.-C., J.-G. Won, A. H. Omar, S.-W. Kim, and B. J. Sohn, 2005: Estimation of the radiative forcing by key aerosol types in worldwide locations using a column model and AERONET data. Atmos. Environ., 39, 6620–6630. [PDF]
  115. 40. Sohn, B. J., J.-C. Nam, S.-K. Park, M.-W. Ahn, J.-M. Yoo, H.-S. Lee, D.-E. Chang, C.-H. Ho, D.-H. Bae, S.-J. Kim, H.-J. Oh, S.-C. Park, and J.-H. Kim, 2005: Proposing research and development activities for utilizing the Global Precipitation Measurement (GPM). Atmosphere, Korean Meteorol. Soc., 15, 47-57. [PDF]
  116. 39. Oh, S.-N., B. J. Sohn., and S.-S. Lee, 2004: Aerosol optical and radiative properties observed at Anmyeon and Jeju, Korea in the spring of 2000 and 2001. Environ. Monit. Assess., 92, 95-115. [PDF]
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  118. 37. Sohn, B. J., E.-A. Smith, F. R. Robertson, and S.-C. Park, 2004: Derived over-ocean water vapor transports from satellite-retrieved E-P datasets. J. Clim., 17, 1352-1365. [PDF]
  119. 36. Chung, E.-S., B. J. Sohn, and V. Ramanathan, 2004: Moistening processes in the upper troposphere by deep convection: A case study over the tropical Indian Ocean. J. Meteorol. Soc. Jpn., 82, 959-965. [PDF]
  120. 35. Sohn, B. J., and J. Schmetz, 2004: Water vapor induced OLR variations associated with high cloud changes over the tropics: A study from Meteosat-5 observations. J. Clim., 17, 1987-1996. [PDF]
  121. 34. Sohn, B. J., E.-S. Chung, J. Schmetz, and E. A. Smith, 2003: Estimating upper-tropospheric water vapor from SSM/T-2 satellite measurements. J. Appl. Meteorol., 42, 488-504. [PDF]
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  123. 32. Nakajima, T., M. Sekiguchi, T. Takemura, I. Uno, A. Higurashi, D.-H. Kim, B. J. Sohn, S.-N. Oh, T. Y. Nakajima, S. Ohta, I. Okada, T. Takamura, and K. Kawamoto, 2003: Significance of direct and indirect radiative forcings of aerosols in the East China Sea region. J. Geophys. Res., 108(D23), 8658, doi:101029/2002JD003261. [PDF]
  124. 31. Lee, S.-S., B. J. Sohn, D.-S. Shin, H. Fukushima, and T. Nakajima, 2002: Optical characteristics of the Asian dust aerosol from sky radiation measurements in spring 1998. Korean J. Atmos. Sci., 5, 161-170. [PDF]
  125. 30. Grose, A. M. E., E. A. Smith, H.-S. Chung, M.-L. Ou, B. J. Sohn, and F. J. Turk, 2002: Possibilities and limitations for quantitative precipitation forecasts using nowcasting methods with infrared geosynchronous satellite imagery. J. Appl. Meteor., 41, 763-785. [PDF]
  126. 29. Oh, H.-J., B. J. Sohn, E. A. Smith, F. J. Turk, A.-S. Seo, and H.-S. Chung, 2002: Validating infrared-based rainfall retrieval alogrithms with 1-minute spatially dense raingage measurements over Korean peninsula. Meteorol. Atmos. Phys., 81, 273-287. [PDF]
  127. 28. Murayama, T., N. Sugimoto, I. Uno, K. Kinoshita, K. Aoki, N. Hagiwara, Z. Liu, I. Matsui, T. Sakai, T. Shibata, K. Arao, B. J. Sohn, J.-G. Won, S.-C. Yoon, T. Li, J. Zhou, H. Hu, M. Abo, K. Iokibe, R. Koga, and Y. Iwasaka, 2001: Ground-based network observation of Asian dust events of April 1998 in East Asia. J. Geophys. Res., 106(D16), 18345-18360. [PDF]
  128. 27. Ha, K.-J., Y.-K. Seo, A.-S. Suh, H.-S. Chung, and B. J. Sohn, 2001: Interaction between the land surface condition and El Nino associated with the interannual variation of monsoon rainfall in the East Asia. J. Korean Meteorol. Soc., 37, 381-398. [PDF]
  129. 26. Sohn, B. J., H.-S. Chung, D.-H. Kim, D. Perkey, F. R. Robertson, and E. A. Smith, 2001: Use of satellite-derived water vapor data to investigate northwestward expansion of North Pacific subtropical high during 1995 summer. J. Meteor. Soc. Japan., 79, 1059-1075. [PDF]
  130. 25. Soden, B., S. Tjemkes, J. Schmetz, R. Saunders, J. Bates, B. Ellingson, R. Engelen, L. Garand, D. Jackson, G. Jedlovec, T. Kleespies, D. Randel, P. Rayer, E. Salathe, D. Schwarzkopf, N. Scott, B. J. Sohn, S. de Souza-Machado, L. Strow, D. Tobin, and D, 2000: An intercomparison of radiation codes for retrieving upper tropospheric humidity in the 6.3-μm band: A report from the first GVaP workshop. Bull. Amer. Meteorol. Soc., 81, 797-808. [PDF]
  131. 24. Sohn, B. J., D.-H. Kim, S.-J. Yoo, and Y.-S. Kim, 2000: Examining a vicarious calibration method for the TOA radiance initialization of KOMPSAT OSMI. J. Korean Soc. Remote Sens., 16, 305-313. [PDF]
  132. 23. Sohn, B. J., J. Schmetz, S. Tjemkes, M. Koenig, H. Lutz, A. Arriaga, and E.-S. Chung, 2000: Intercalibration of the Meteosat-7 water vapor channel with SSM/T-2. J. Geophys. Res., 105(D12), 15673-15680. [PDF]
  133. 22. Kim, D.-H., and B. J. Sohn, 1999: Characteristics of atmospheric water budget and water vapor sources of the 1994-95 East Asian summer monsoon. J. Korean Earth Sci. Soc., 20, 232-241. [PDF]
  134. 21. Sohn, B. J., 1999: Cloud-induced infrared radiative heating and its implications for large-scale tropical circulations. J. Atmos. Sci., 56, 2657-2672. [PDF]
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  138. 17. Sohn, B. J., and S.-G. Hwang, 1998: Identifying yellow sand from the ocean color sensor SeaWiFS measurements. J. Korean Soc. Remote Sens., 14, 366-375. [PDF]
  139. 16. Kim, H.-Y., B. J. Sohn, and J.-H. Oh, 1997: Water balance of typhoon Robyn (9307) determined from SSM/I Data. J. Korean Meteorol. Soc., 33, 807-818. [PDF]
  140. 15. Sohn, B. J., 1996: Analysis of the clear-sky greenhouse effect inferred from satellite data. J. Korean Earth Sci. Soc., 17, 127-136. [PDF]
  141. 14. Han, J.-W., and B. J. Sohn, 1996: Climate characterics of the East Asian monsoon related to heat budget. J. Korean Meteorol. Soc., 32, 619-633. [PDF]
  142. 13. Sohn, B. J., 1996: The impacts of clouds on the surface longwave radiation budget. J. Korean Meteorol. Soc., 32, 229-242. [PDF]
  143. 12. Sohn, B. J., and J.-W. Han, 1995: Some climatological features associated with extremes of east asian summer monsoon. J. Korean Meteor. Soc., 31, 477-488. [PDF]
  144. 11. Sohn, B. J., and E. A. Smith, 1994: Energy transports by ocean and atmosphere based on an entropy extremum principle. Part II: Two-dimensional results. Meteorol. Atmos. Phys., 53, 61-75. [PDF]
  145. 10. Sohn, B. J., 1994: Temperature-moisture biases in ECMWF analyses based on clear-sky longwave simulations constrained by SSMI and MSU measurements and comparisons to ERBE estimates. J. Clim., 7, 1707-1718. [PDF]
  146. 9. Sohn, B. J., and E. A. Smith, 1993: Energy transports by ocean and atmosphere based on an entropy extremum principle. Part I: Zonal averaged transports. J. Clim., 6, 886-899. [PDF]
  147. 8. Sohn, B. J., and F. R. Robertson, 1993: Intercomparison of observed cloud radiative forcing: A zonal and global perspective. Bull. Amer. Meteorol. Soc., 74, 997-1006. [PDF]
  148. 7. Sohn, B. J., and E. A. Smith, 1992: The significance of cloud-radiative forcing to the general circulation on climate time scales - A satellite interpretation. J. Atmos. Sci., 49, 845-860. [PDF]
  149. 6. Sohn, B. J., and E. A. Smith, 1992: The modulation of the low-latitude radiation budget by cloud and surface forcing on interannual time scales. J. Clim., 5, 831-846. [PDF]
  150. 5. Sohn, B. J., and E. A. Smith, 1992: Global energy transports and the influence of clouds on transport requirements - A satellite analysis. J. Clim., 5, 717-734. [PDF]
  151. 4. Jury, M. R., B. Pathack, and B. J. Sohn, 1992: Spatial structure and interannual variability of summer convection over southern Africa and the SW Indian Ocean. S. Afr. J. Sci., 88, 275-280.
  152. 3. Sohn, B. J., 1992: Concerning the environmental earth science education of high school students. J. SNU SERI., 17, 1-8.
  153. 2. Smith, E. A., and B. J. Sohn, 1990: Surface forcing of interannual variations in the radiation balance over north africa. Part I: Partitioning the surface and cloud forcing. Clim. Change, 17, 147-192. [PDF]
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