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LAB Announcements

SLC lawn watering recommendation
EFD Lab awarded new NSF grant to study cold fog forming in mountain valleys May 2021
Sustainability growing at the U with the GCSC

Spotlight

Jae-Jin Kim

Education: Undergraduate University: Seoul National University - Atmospheric Science
MS: Gwangju Institute of Science and Technology - Environmental Engineering
PhD: Gwangju Institute of Science and Technology - Environmental Engineering

Program: Visiting Professor 2012-2014

Research Interests: Urban Atmospheric Environment

Publications:
(1) Kim, J.-J., and J.-J. Baik, 1999: A numerical study of thermal effects on flow and pollutant dispersion in urban street canyons. Journal of Applied Meteorology, 38, 1249-1261.
(2) Baik, J.-J., and J.-J. Kim, 1999: A numerical study of flow and pollutant dispersion characteristics in urban street canyons. Journal of Applied Meteorology, 38, 1576-1589.
(3) Baik, J.-J., R.-S. Park, H.-Y. Chun, and J.-J. Kim, 2000: A laboratory model of urban street-canyon flows. Journal of Applied Meteorology, 39, 1592-1600.
(4) Kim, J.-J., and J.-J. Baik, 2001: Urban street-canyon flows with bottom heating. Atmospheric Environment, 35, 3395-3404.
(5) Kim, J.-J., J.-J. Baik, and H.-Y. Chun, 2001: Two-dimensional numerical modeling of flow and dispersion in the presence of hill and buildings. Journal of Wind Engineering and Industrial Aerodynamics, 89, 947-966.
(6) Baik, J.-J., and J.-J. Kim, 2002: On the escape of pollutants from urban street canyons. Atmospheric Environment, 36, 527-536.
(7) Kim, J.-J., and J.-J. Baik, 2003: Effects of inflow turbulence intensity on flow and pollutant dispersion in an urban street canyon. Journal of Wind Engineering and Industrial Aerodynamics, 91, 309-329.
(8) Baik, J.-J., J.-J. Kim, and H. J. S. Fernando, 2003: A CFD model for simulating urban flow and dispersion. Journal of Applied Meteorology, 42, 1636-1648.
(9) Kim, S.-O., J.-J. Kim, S.-T. Yun, and K.-W. Kim, 2003: Numerical and experimental studies on cadmium (II) transport in kaolinte clay under electrical fields. Water, Air, and Soil Pollution, 150, 135-162.
(10) Kim, J.-J., and J.-J. Baik, 2004: A numerical study of the effects of ambient wind direction on flow and dispersion in urban street canyons using the RNG k-? turbulence model. Atmospheric Environment, 38, 3039-3048.
(11) Kim, S.-O., J.-J. Kim, K.-W. Kim, and S.-T. Yun, 2004: Models and experiments on electrokinetic removal of Pb(II) from kaolinite clay. Separation Science and Technology, 39, 1927-1951.
(12) Kim, J.-J., and J.-J. Baik, 2005: Physical Experiments to Investigate Urban Street-Canyon Flow. Advances in Atmospheric Science, 22, 230-237.
(13) Baik, J.-J., R.-S. Park, and J.-J. Kim, 2005: Dependency of the horizontal length of cavity region on Reynolds number and ridge asymmetry. Journal of the Korean Meteorological Society, 41, 473-479.
(14) Kim, J.-J., and J.-J. Baik, 2005: An investigation of flow and scalar dispersion in an urban area using a CFD model. Journal of the Korean Meteorological Society, 41, 821-837.
(15) Kim, J.-J., and J.-J. Baik, 2005: Classification of flow regimes in urban street canyons using a CFD model. Journal of Korean Society for Atmospheric Environment, 21, 525-535.
(16) Kim, J.-J., H.-J. Song, and J.-J. Baik, 2006: Modeling flow and scalar dispersion around Cheomseongdae. Wind and Structures, 9(4), 315-330.
(17) Baik, J.-J., Y.-S. Kang, and J.-J. Kim, 2007: Modeling reactive pollutant dispersion in an urban street canyon. Atmospheric Environment, 41(5), 934-949.
(18) Baik, J.-J., Y.-H. Kim, J.-J. Kim, and J.-Y. Han, 2007: Effects of Boundary-Layer Stability on Urban Heat Island Induced Circulation. Theoretical and Applied Climatology, 89(1-2), 73-81.
(19) Han, J.-Y., J.-J. Kim, and J.-J. Baik, 2007: Flow regimes of continuously stratified flow over a double mountain. Atmosphere, 17(3), 231-240.
(20) Song, C.-K. J.-J. Kim, and D.-W. Song, 2007: The effects of windbreaks on reduction of suspended particles. Atmosphere, 17(4), 315-326.
(21) Kim, J.-J., 2007: The effects of obstacle aspect ratio on surrounding flows. Atmosphere, 17(4), 381-391.
(22) Kang, Y.-S., J.-J. Baik, and J.-J. Kim, 2008: Further studies of flow and reactive pollutant dispersion in a street canyon with bottom heating. Atmospheric Environment, 42(20), 4964-4975.
(23) Kim, D.-Y., J.-J. Kim, J.-H. Oh, and P. Sen, 2008: A case study on emission management for reducing photochemical pollution over the Osaka Bay area. Asia-Pacific Journal of Atmospheric Sciences, 44(4), 341-349.
(24) Kim, J.-J., and D.-Y. Kim, 2009: Effects of a building's density on flow in urban areas. Advances in Atmospheric Science, 26(1), 45-56.
(25) Baik, J.-J., S.-B. Park, and J.-J. Kim, 2009: Urban flow and dispersion simulation using a CFD model coupled to a mesoscale model. Journal of Applied Meteorology and Climatology, 48(8), 1667-1681. DOI: 10.1175/2009JAMC2066.1
(26) Lee, T.-Y., D.-Y. Kim, J.-J. Kim, J.-K. Lee, 2009: Physicoshemical characteristics and estimation of H2S emission rate from municipal solid waste at the environmental facilities in Busan city. Korea Geo-Environmental Society. 10(2), 13-20.
(27) Lee, J.-H., J.-W. Choi, J.-J. Kim, Y.-C. Suh, 2009: The effects of an urban renewal plan on detailed air flows in an urban area. The Korean Association of Geographic Information Studies. 12(2), 69-81.
(28) Kim, J.-J., and J.-J. Baik, 2010: Effects of street-bottom and building-roof heating on flow in three-dimensional street canyons. Advances in Atmospheric Science, 27(3), 513-527, DOI: 10.1007/s00376-009-9095-2.
(29) Choi, J.-W., Y.-S. Lee, J.-J. Kim, 2010: Effects of meteorological and reclaiming conditions on the reduction of suspended particles. Journal of the Environmental Sciences. 19(11), 1423-1436.
(30) Cheong, H.-B., I.-H. Kwon, H.-G. Kang, J.-R. Park, H.-J. Han, and J.-J. Kim, 2011: Tropical cyclone track and intensity prediction with a structure adjustable balanced vortex. Asia-Pacific Journal of Atmospheric Sciences, 47(3), 293-303.
(31) Woo, J.-H., H.-S. Kim, S.-B. Lim, J.-J. Kim, J. Lee, R. Ryoo, H. Kim, and L. D. Minh, 2011: Constructing u-City of Seoul by future foresight analysis. Concurrency and Computation: Practice and Experience, 23(10), 1114-1126.
(32) Y.-S. Lee, J.-J. Kim, 2011: Effects of an apartment complex on flow and dispersion in an urban area. Atmosphere. 21(1), 95-108.
(33) Kim, M., R. Park, and J.-J. Kim, 2012: Urban air quality modeling with full O3-NOx-VOC chemistry: Implications for O3 and PM air quality in a street canyon. Atmospheric Environment, 47, 330-343.
(34) Yeom, J.-M., K.-S. Han, and J.-J. Kim, 2012: Evaluation on penetration rate of cloud for incoming solar radiation using geostationary satellite data. Asia-Pacific Journal of Atmospheric Sciences, 48(2), 115-123.
(35) Kim, D.-Y., J.-Y. Kim, and J.-J. Kim, 2012: A regression-based statistical correction of mesoscale simulations for near-surface wind speed using remotely sensed surface observations. Asia-Pacific Journal of Atmospheric Sciences, 48(4), 449-456.
(36) Choi, H.-W., D.-Y. Kim, J.-J. Kim, K.-Y. Kim, J.-H. Woo, 2012: Study on Dispersion Characteristics for Fire Scenarios in an Urban Area Using a CFD-WRF Coupled Model. Atmosphere., 22(1), 47-55.
(37) Kim, D.-Y., J.-Y. Kim, and J.-J. Kim, 2013: Mesoscale simulations of multi-decadal variability in the wind resource over the republic of Korea. Asia-Pacific Journal of Atmospheric Sciences, in press.
(38) Park, S.-J., D.-Y. Kim, and J.-J. Kim, 2013: Effects of Atmospheric Stability and Surface Temperature on Microscale Local Airflow. Atmosphere, in press.

Contact: jjkim@pknu.ac.kr

Website: http://urban.pknu.ac.kr

LEMS – Local Energy-budget Measurement Stations

LEMS at the University of Utah — Figure - LEMS deployed at the University of Utah.

LEMS are solar powered, low-cost Energy-budget Measurement Stations, which have been designed and assembled at the University of Utah EFD lab. LEMS monitor incoming solar radiation (LI-200), 2-m air temperature and relative humidity (Sensirion SHT 15, Humidity +/- 2-5% Temperature +/- 0.5K), air pressure (Bosch BMP085), surface temperature (Zytemp TN9), wind speed/direction (Davis cup/vane), as well as soil temperature and moisture (Decagon 5TM) at two levels below ground. Data are logged using an Arduino-based open source controller with a data logger that can store up to 2 GB of data. Sensors have been developed and assembled by Nipun Gunawardena as part of the ONR funded MATERHORN project. The plot below shows data from LEMS and PWIDS (Portable Weather Display System - Dugway Proving Ground met stations). The plot shows the spatial distribution of surface temperature (large circle), air temperature (middle sized circle) and incoming solar radiation (smallest circles) along with wind vectors along the East Slope of Granite Peak at Dugway Proving Ground.

Additional experiments have been carried out with Prof. Rob Stoll's group using LEMS to measure microclimate variables in vineyards in Oregon. Currently, Pardyjak, Stoll and Smith are using LEMS as part of a QUIC EnvSim validation study on the University of Utah campus, which is part of our Distributed Power Generation NSF Grant.

Temperature, wind and radiation data from LEMS and PWIDS during MATERHORN