Hanlim Lee

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—We propose and demonstrate a method to provide precise time synchronization in distributed control systems using a boundary clock scheme. The major drawback of the boundary clock scheme is the exponential accumulation of time synchronization error as the number of hops increases. To make the error accumulation linearly increase with the number of hops, we(More)
  • Yeonjin Jung, Jhoon Kim, Woogyung Kim, Hartmut Boesch, Hanlim Lee, Chunho Cho +4 others
  • 2016
Based on an optimal estimation method, an algorithm was developed to retrieve the column-averaged dry-air mole fraction of carbon dioxide (XCO 2) using Shortwave Infrared (SWIR) channels, referred to as the Yonsei CArbon Retrieval (YCAR) algorithm. The performance of the YCAR algorithm is here examined using simulated radiance spectra, with simulations(More)
This present study suggests a method to calculate the SO 2 flow rate from a source area to receptor areas on a regional scale using Ozone Monitoring Instrument (OMI) SO 2 products, surface in situ SO 2 data, and the hybrid single particle Lagrangian integrated trajectory (HYSPLIT) model. The method was implemented to calculate the SO 2 flow rate from(More)
An investigation into the diurnal characteristics of vertical formaldehyde (HCHO) profiles was conducted based on multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements in Beijing during the CAREBEIJING campaign, covering a month-long period through August and September 2006. Vertical HCHO profiles were retrieved based on a combined(More)
  • Young M Noh, Detlef Mü Ller, Dong H Shin, Hanlim Lee, Jin S Jung, Kwon H Lee +4 others
  • 2008
Aerosol optical and microphysical parameters from severe haze events observed in October 2005 at Gwangju, Korea (35.10 N, 126.53 E) were determined from the ground using a multi-wavelength Raman lidar, a sunphotometer, and a real-time carbon particle analyzer and from space using satellite retrievals. Two different aerosol types were identified based on the(More)
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