Deok Hyeon Lee
Sungkyunkwan University · 地球惑星科学
研究室紹介
Professor Deok Hyeon Lee's research lab specializes in atmospheric and environmental sciences, with a focus on meteorological data assimilation, GPS meteorology, and atmospheric composition monitoring. The lab conducts advanced analyses of upper-air and surface weather data, leveraging global numerical models and ground-based observations to improve weather and climate modeling. Research also extends to stratospheric ozone profiling using sounding rockets and ground-based instruments, contributing to long-term atmospheric monitoring. Additionally, the lab explores environmental applications of GPS technology, particularly in estimating precipitable water vapor during severe weather events.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
6Global upper air and surface data for the entire GATE period from 15 June to 24 September 1974, were collected by the Data Assimilation Branch of NMC and mailed to GFDL. After processing these data, a four-dimensional analysis technique was applied for the entire GATE period, using a global numerical model. For a selected period, several different versions of the data processing scheme were tested. The resulting analyses were compared with each other and with the objective analysis of NMC in Was
AbstractAbstractThis paper presents GPS meteorology using GPS observations obtained from the Korean permanent GPS network during a severe weather condition. Our first experimental studies in Korea were based on data collected from seventeen GPS stations and four radiosonde stations during the period of Typhoon Rusa from 31 August to 1 September 2002. The root mean square difference (RMSD) between the GPS Precipitable Water Vapour (PWV) and the radiosonde-PWV was at the 7.2 mm level. In this new
The Korean sounding rockets(KSR420S-1, -2) equipped with ozone detectors have been launched at An-heung, Chungchungnam-do, on June 4 and September 1, 1993, respectively. The ozone detector is used to measure the attenuation of solar UV radiation for various frequency bands in the stratosphere, to obtain vertical profiles of the ozone number density in the stratosphere. They confirm that the maximum ozone densities occur near 25km, which is quite consistent with the mean value in the mid-latitude
This study introduces an anlytical model for estimating shear strengths of reinforced concrete (RC) members with corroded tensile reinforcing bars. The bond strength model for corroded reinforcing bars developed in the previous study was extended for shear analysis. A force equilibrium condition between adjacent cracks was established considering the bond mechanism of reinforcing bars, through which the shear contributions of aggregate interlock in cracked tension zone and uncracked concrete in