CURRICULUM VITAE. Yonghwan Kwon

CURRICULUM VITAE Yonghwan Kwon Postdoctoral Associate 0132 Engineering Laboratory Building Department of Civil and Environmental Engineering University of Maryland College Park, MD 20742 (E-mail: yhkwon@umd.edu; yhkwon@utexas.edu) Education The University of Texas at Austin 2016 Ph.D. Climate, Department of Geological Sciences, Jackson School of Geosciences (advisor: Dr. Zong-Liang Yang) Seoul National University, Seoul, Republic of Korea 2009 M.C.P. Environmental Management, Graduate School of Environmental Studies (advisor: Dr. Dowon Lee) 2004 B.S.A. Environmental Education, Department of Agricultural and Vocational Education Research Interests The broad areas of hydrology, micrometeorology, remote sensing, and climatology. Specific topics include: 1. Modeling the spatial and temporal distribution of snow water storage using a land surface model 2. Applying the data assimilation methods for improved characterizations of snow dynamics and hydrological cycles. 3. Microwave radiance modeling using radiative transfer models and/or machine learning algorithms. 4. Land-atmosphere interactions 5. Characterizing land surface hydrological processes using remote sensing data Professional Experience Jan. 2017 present: Postdoctoral Associate (advisor: Dr. Barton Forman) Department of Civil and Environmental Engineering, A. James Clark

School of Engineering, University of Maryland Sep. 2016 Jan. 2017: Postdoctoral Fellow (advisor: Dr. Srinivas Bettadpur) Center for Space Research, The University of Texas at Austin Jan. 2015 May. 2015: Teaching Assistant Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin Technical Sessions (GEO193) Sep. 2014 Dec. 2014: Teaching Assistant Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin Labs for Introduction to Geology (GEO303) Sep. 2011 Aug. 2014: Research Assistant Multi-Sensor Snow Data Assimilation Funding source: National Aeronautics and Space Administration (NASA) 1. Involved in developing an optimized approach for data assimilation to provide high-quality maps of snow water equivalent. Jun. 2012 Jul.2012: Visiting researcher at the Hydrological Sciences Laboratory, NASA Goddard Space Flight Center 1. Collaborated with NASA scientists for snow microwave radiance data assimilation using the Community Land Model version 4 (CLM4) and microwave radiative transfer models (RTMs). Mar. 2009 Jun. 2011: Researcher in Watershed Environment Research Unit, HydroCore Ltd. Seoul, Korea Apr. 2007 Jun. 2011: Assistant Researcher Development of a catchment model to assess environmental impacts of animal waste application to croplands Funding source: Rural Development Administration of the Korean government 1. Developed energy flux algorithm to estimate soil and water temperature. 2. Developed snow-melting and soil freezing-thawing algorithm for a distributed catchment model. 3. Measured time series data of soil temperature, soil water content, and meteorology for three years. 4. Simulated hydrology, soil and water temperature, sediment transport, and CNP (carbon, nitrogen and phosphorous) transformation/transport and assessed environmental impacts of animal waste application to

croplands using the model. Feb. 2008 Dec.2008: Assistant Researcher The Sihwa Lake Marine Environment Improvement Project Funding source: Minister of Land, Transport and Maritime Affairs of Korea 1. Involved in developing a distributed watershed model simulating diffuse pollution. 2. Simulated hydrology, sediment transport, and CNP (carbon, nitrogen and phosphorous) transformation/transport at the Sihwa Lake watershed. Mar. 2004 Jun. 2006: Korean Military Service (Served as an army officer) Jul. 2003 Aug. 2003: Student Teacher of Environmental Management Classes at Suwon High School for Agricultural Science, Republic of Korea Awards & Honors Apr. 2010. Best Oral Presentation Award, Korean Society on Water Quality (KSWQ) and Korean Society of Water and Wastewater (KSWW) Spring Joint Conference Mar. 2008. Alumni Association Scholarship, Graduate School of Environmental Studies, Seoul National University Sep. 2007 Feb. 2009. Seoul National University Honorary Scholarships Mar. 2002 Feb. 2004. Seoul National University Honorary Scholarships Publications 1. Peer-reviewed journal articles Kwon, Y., S. V. Bettadpur, H. Save, L. Zhao, and Z. L. Yang, Assimilation of the coarse spatial resolution GRACE terrestrial water storage data into a land surface model and its implications for multi-decadal hydrological studies, in preparation for submission to Remote Sensing of Environment. Kwon, Y., B. K. Koo, and D. Lee, Development and evaluation of the Soil and Water Temperature Model (SWTM) for rural catchments, in preparation for submission to Agricultural and Forest Meteorology. Kwon, Y., Z. L. Yang, T. J. Hoar, and A. M. Toure (2016), Improving the radiance assimilation performance in estimating snow water storage across snow and

land-cover types in North America. J. Hydrometeor., doi:10.1175/jhm-d-16-0102.1, in press. Kwon, Y., Z. L. Yang, L. Zhao, T. J. Hoar, A. M. Toure, and M. Rodell (2016), Estimating snow water storage in North America using CLM4, DART, and snow radiance data assimilation, J. Hydrometeor., 17(11), 2853 2874, doi:10.1175/jhm-d-16-0028.1. Toure, A. M., M. Rodell, Z. L. Yang, H. Beaudoing, E. Kim, Y. Zhang, and Y. Kwon (2016), Evaluation of the snow simulations from the Community Land Model, version 4 (CLM4), J. Hydrometeor., 17(1), 153 170, doi: http://dx.doi.org/10.1175/jhm-d-14-0165.1. Kwon, Y., A. M. Toure, Z. L. Yang, M. Rodell, and G. Picard (2015), Error characterization of coupled land surface radiative transfer models for snow microwave radiance assimilation, IEEE Trans. Geosci. Remote Sens., 53(9), 5247 5268, doi: 10.1109/TGRS.2015.2419977. Kwon, Y. and B. K. Koo (2014), Simulation of spatio-temporal distributions of winter soil temperature taking account of snow-melting and soil freezing-thawing processes, J. Korea Water Resources Association, 47(10): 945 958, doi: http://dx.doi.org/10.3741/jkwra.2014.47.10.945. 2. Thesis/Dissertation Kwon, Y. H. (2016). Development and evaluation of an advanced microwave radiance data assimilation system for estimating snow water storage at the continental scale. A dissertation for fulfillment of the degree of Doctor of Philosophy at The University of Texas at Austin. Kwon, Y. H. (2009). Development of soil and water temperature model considering energy balance and hydrological characteristics of a rural catchment. A thesis for fulfillment of a Masters of City Planning degree at the Graduate School of Environmental Studies, Seoul National University. 3. Conference Proceedings Yang, Z. -L., L. Zhao, P. Lin, Y. Kwon, and Y. Zhang (2017). Multi-source and multiscale land data assimilation and its role in seasonal climate prediction. Proceedings of the 97 th American Meteorological Society Annual Meeting, Seattle, USA, 22-26 January 2017. Kwon, Y., Z. -L. Yang, L. Zhao, T. J. Hoar, A. M. Toure, and M. Rodell (2016). Can assimilation of microwave radiance data improve continental-scale snow water

storage estimates? Proceedings of the 73 rd Eastern Snow Conference (ESC), Columbus, OH, USA, 14-16 June 2016 (invited). Kwon, Y., Z. -L. Yang, A. M. Toure, T. J. Hoar, L. Zhao, M. Rodell (2016). Improving the radiance assimilation performance in estimating snow water storage across snow and land cover types in North America. Proceedings of the 5 th Annual Jackson School Research Symposium, Austin, USA, 6 February 2016. Kwon, Y., Z. -L. Yang, L. Zhao, T. J. Hoar, and A. M. Toure (2015). Multi-RTM-based radiance assimilation to improve snow estimates. Proceedings of the AGU Fall Meeting, San Francisco, USA, 14-18 December 2015. Yang, Z. -L., Y. Zhang, Y. Kwon, P. Lin, L. Zhao, T. J. Hoar, J. L. Anderson, A. M. Toure, M. Rodell (2015). An Extensible Global Land Data Assimilation System Based on NCAR's Community Land Model (CLM) and Data Assimilation Research Testbed. Proceedings of the AGU Fall Meeting, San Francisco, USA, 14-18 December 2015. Kwon, Y., L. Zhao, Z. -L. Yang, T. J. Hoar, A. M. Toure, M. Rodell, and G. Picard (2015). Snow radiance assimilation over North America. Proceedings of the 4 th Annual Jackson School Research Symposium, Austin, USA, 7 February 2015. Kwon, Y., Z. L. Yang, A. M. Toure, T. J. Hoar, M. Rodell, and G. Picard (2014). Passive microwave radiance data assimilation for estimating snow water equivalent over North America, Proceedings of Catchment-based Hydrological Model Data Assimilation (CAHMDA-VI) and Data Assimilation for Operational Hydrology and Water Management of the Hydrologic Ensemble Prediction Experiment (HEPEX-DAFOH III) Joint Workshop, Austin, Texas, USA, 8-12 Sep. 2014. Zhang, Y., Z. L. Yang, Y. Kwon, T. J. Hoar, H. Su, J. L. Anderson, A. M. Toure, and M. Rodell (2014). Improving estimates of snowpack water storage in the Northern Hemisphere through a newly developed land data assimilation system, Proceedings of the 4 th Integrated Land Ecosystem Atmosphere Processes Study (ileaps) Conference, Nanjing, China, 12-16 May 2014. Kwon, Y., Y. Zhang, Z. L. Yang, A. M. Toure, T. J. Hoar, M. Rodell, G. Picard (2014). The use of multiple radiative transfer models for snow in radiance assimilation. Proceedings of the 3 rd Annual Jackson School Research Symposium, Austin, USA, 25 January 2014. Kwon, Y., A. M. Toure, Z. L. Yang, M. Rodell, and G. Picard (2013). Error characterization of the coupled land surface-radiative transfer models for snow

passive microwave radiance assimilation. Proceedings of the AGU Fall Meeting, San Francisco, USA, 9-13 December 2013. Toure, A. M., M. Rodell, T. Hoar, Y. Kwon, Z. L. Yang, Y. Zhang, and H. Beaudoing (2013), Simulation of snow microwave radiance observations using a coupled land surface-radiative transfer models. Proceedings of the AGU Fall Meeting, San Francisco, USA, 9-13 December 2013. Yang, Z. L., Y. Zhang, L. Zhao, Y. Kwon, H. Su, X. Ling, T. J. Hoar, J. L. Anderson, A. Toure, and M. Rodell (2013). Towards comprehensive land data assimilation using NCAR's Community Land Model (CLM) and Data Assimilation Research Testbed (DART). Proceedings of the AGU Fall Meeting, San Francisco, USA, 9-13 December 2013. Kwon, Y., A. M. Toure, Z. L. Yang, and M. Rodell (2013). Predictions of the brightness temperature using the coupled land surface-radiative transfer models. Proceedings of the 93 rd American Meteorological Society Annual Meeting, Austin, USA, 6-10 January 2013. Toure, A. M., M. Rodell, Z. L. Yang, Y. Zhang, Y. Kwon, and H. Beaudoing (2013). Assessment of the Community Land Model snow model output estimates. Proceedings of the 93 rd American Meteorological Society Annual Meeting, Austin, USA, 6-10 January 2013. Kwon, Y., and Z. L. Yang (2012). Feasibility of the passive microwave radiance assimilation into the Community Land Model version 4 to estimate snowpack characteristics at the global scale: a review study. Proceedings of the 1 st Annual Jackson School Research Symposium, Austin, USA, 4 February 2012. Kwon, Y. H., S. Juh, H. L Cho, and B. K. Koo (2011). Simulation of temporal and spatial distribution of soil water content at the catchment scale. Proceedings of the Korean Society on Water Quality (KSWQ) and Korean Society of Water and Wastewater (KSWW) Spring Joint Conference, pp. 167-168, Incheon, Korea, 22-23 April 2011. Kwon, Y. H., S. Juh, and B. K. Koo (2010). Simulation of soil temperature taking account of snowmelting and soil freezing-thawing processes. Proceedings of the Korean Society on Water Quality (KSWQ) and Korean Society of Water and Wastewater (KSWW) Spring Joint Conference, pp. 69-70, Daejeon, Korea, 16-17 April 2010. Juh, S., Y. H. Kwon, H. L. Cho, E. Jeong, and B. K. Koo (2010). Improvement of calculation speed of a distributed watershed model using variable simulation time-steps. Proceedings of the Korean Society on Water Quality (KSWQ) and Korean Society of Water and Wastewater (KSWW) Spring Joint Conference, pp. 45-46, Daejeon, Korea, 16-17 April 2010. Kwon, Y. H., B. K. Koo, and D. Lee (2009). Estimation of soil and surface water temperature at the catchment scale. Proceedings of 13 th International

Conference on Diffuse Pollution and Integrated Watershed Management (IWA DIPCON 2009), pp. 234-235, Lotte Hotel World, Seoul, Korea, 12-15 October 2009. Kwon, Y. H., and B. K. Koo (2009). Estimation of soil temperature and surface water temperature taking account of energy balance and hydrological characteristics. Proceedings of the Korean Society on Water Quality (KSWQ) and Korean Society of Water and Wastewater (KSWW) Spring Joint Conference, pp. 93-94, Suwon, Gyeonggi-do, Korea, 17-18 April 2009. Kwon, Y. H., B. R. Hwang, S. H. Ahn, E. J. Hong, and J. C. Bae (2008). The relationship between sky view factor and nocturnal urban heat island intensity. Proceedings of the 63 rd Annual Meeting of the Korean Association of Biological Science, p. 190, Mokpo, Korea, 20-22 August 2008. Kwon, Y. H., and B. K. Koo (2008). A comparison of energy balance models to estimate stream water temperature. Proceedings of the Korean Society on Water Quality (KSWQ) and Korean Society of Water and Wastewater (KSWW) Spring Joint Conference, pp. 465-466, Seoul, Korea, 25-26 April 2008. Bae, K. K., Y. H. Kwon, J. H. Park, Y. J. Lee, and H. J. Lee (2008). Measurement of soil properties and soil organic carbon sequestration of Quercus mongolica forest in Mt. Gwanak, Mt. Nam and Mt. Bukhan in Seoul. Proceedings of the 2008 Annual Meeting of the Korean Forest Society, Seoul, Korea, 14 February 2008. Kwon, Y. H., and B. K. Koo (2007). Soil temperature prediction equations considering soil texture and soil water content. Proceedings of the Korean Society of Water and Wastewater (KSWW) and Korean Society on Water Quality (KSWQ) Fall Joint Conference, pp. 60-67, Goyang, Gyeonggi-do, Korea, 21-22 November 2007. Professional Service 1. Peer Reviewer for IEEE Transactions on Geoscience and Remote Sensing, IEEE Geoscience and Remote Sensing Magazine, and Journal of Geophysical Research - Atmospheres Invited Lectures and Talks 1. CLM4 Lab Instructor at the 3 rd International Winter School and Workshop on Climate/Environment Change. Ewha Womans University, Seoul, South Korea. December 2011.

2. Guest Lecturer for GEO 391 (Land-Atmosphere Interaction Dynamics) The passive microwave radiance assimilation to estimate snowpack characteristics. October 2012. 3. Guest Speaker at the Watershed Environment Research Unit, HydroCore Ltd. Seoul, South Korea Snow radiance assimilation. December 2012. 4. Guest Speaker at the Watershed Environment Research Unit. HydroCore Ltd. Seoul, South Korea Snow microwave radiance data assimilation. August 2015. Memberships 2013- Member, American Geophysical Union (AGU) 2010- Member, Korean Society on Water Quality (KSWQ) Relevant Skills 1. Experimental facilities - Soil Temperature, Soil Moisture and Weather Data logger (Spectrum) - USGS Pygmy Meter - LAI-2000 Plant Canopy Analyzer (LI-COR) - Digital Hemispherical Photography - Pressure Water Gauge 2. Computer skills - MS office, ArcGIS, ENVI/IDL, Hemisphere - Programming languages: Visual Basic.NET, FORTRAN, NCAR Command Language, MATLAB 3. Models Land surface models - CLM4 (Community Land Model version 4) Microwave radiative transfer models for snowpack - DMRT-ML (Dense Media Radiative Transfer - Multi Layers model) - MEMLS (Microwave Emission Model for Layered Snowpacks) Data assimilation tools - DART (Data Assimilation Research Testbed) Watershed/Hydrological models - EFDC (Environmental Fluid Dynamics Code) - HEC-RAS (Hydrologic Engineering Centers River Analysis System) - CAMEL (Chemicals from Agricultural Management and Erosion Losses)

4. Languages - Korean, English