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Analysis of Fog using the FSSP-100 and Microwave Radiometer at Daegwallyoung in the 2003 winter case  

Cha, Joo-Wan (Remote Sensing Laboratory, Meteorological Research Institute, KMA)
Chang, Ki-Ho (Remote Sensing Laboratory, Meteorological Research Institute, KMA)
Jeong, Jin-Yim (Remote Sensing Laboratory, Meteorological Research Institute, KMA)
Park, Gyun-Myeong (Remote Sensing Laboratory, Meteorological Research Institute, KMA)
Yang, Ha-Young (Remote Sensing Laboratory, Meteorological Research Institute, KMA)
Publication Information
Atmosphere / v.15, no.3, 2005 , pp. 167-178 More about this Journal
Abstract
Using the FSSP-100(FSSP) and Microwave Radiometer (MWR), the fog and clear day characteristics (the size and number concentration of fog particles and the liquid water content) have been measured and analyzed at Daegwallyoung observation site ($37^{\circ}41^{\prime}N$, $128^{\circ}45^{\prime}E$) during 27 - 30 November 2003 (fog day) and 19 January 2004 (clear day). During the fog days, the measured fog-particle size by using FSSP is 0.8~8.4 ${\mu}m$, which is similar to the WMO typical value, the fog number concentration varies from 121 to 200 count ($No./cm^2$) and the fog liquid water content from $0.018g/m^3-0.1g/m^3$ in the site. The precipitable water vapor obtained by the MWR, showing the correlation coefficient $R^2$=0.83 between the total precipitable water vapor obtained from the radio sonde and MWR, shows the larger amount (0.75-8.3 cm) during the fog days than the clear-sky data (0.2 cm).
Keywords
FSSP-100; Microwave Radiometer; Fog; size and number concentration of particle; precipitable water;
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