Browse > Article
http://dx.doi.org/10.5322/JESI.2016.25.3.345

Case Study on the Physical Characteristics of Precipitation using 2D-Video Distrometer  

Park, Jong-Kil (Dept. of Environmental Engineering/Atmospheric Environment Information Research Center, Inje University)
Cheon, Eun-Ji (Dept. of Atmospheric Environment Information Engineering/Atmospheric Environment Information Research Center, Inje University)
Jung, Woo-Sik (Dept. of Atmospheric Environment Information Engineering/Atmospheric Environment Information Research Center, Inje University)
Publication Information
Journal of Environmental Science International / v.25, no.3, 2016 , pp. 345-359 More about this Journal
Abstract
This study analyze the synoptic meteorological cause of rainfall, rainfall intensity, drop size distribution(DSD), fall velocity and oblateness measured by the 2D-Video distrometer(2DVD) by comparing two cases which are heavy rainfall event case and a case that is not classified as heavy rainfall but having more than $30mm\;h^{-1}$ rainrate in July, 2014 at Gimhae region. As a results; Over the high pressure edge area where strong upward motion exists, the convective rain type occurred and near the changma front, convective and frontal rainfall combined rain type occurred. Therefore, rainrate varies based on the synoptic meteorological condition. The most rain drop distribution appeared in the raindrops with diameters between 0.4 mm and 0.6 mm and large particles appeared for the convective rain type since strong upward motion provide favorable conditions for the drops to grow by colliding and merging so the drop size distribution varies based on the location or rainfall types. The rainfall phases is mainly rain and as the diameter of the raindrop increase the fall velocity increase and oblateness decrease. The equation proposed based on the 2DVD tends to underestimated both fall velocity and oblateness compared with observation. Since these varies based on the rainfall characteristics of the observation location, standard equation for fall velocity and oblateness fit for Gimhae area can be developed by continuous observation and data collection hereafter.
Keywords
2DVD; Rainrate; Rainfall intensity; DSD; Convective rain types; Precipitation types;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 An, S. I., Ha, K. H., Seo, K. H., Yeh, S. W., Min, S. K., Ho, C. H., 2011, A review of recent climate trends and causes over the korean peninsula, climate change research, 2(4), 237-251.
2 Atlas, David, R. C. Srivastava, Rajinder, S. S., 1973, Doppler radar characteristics of precipitation at vertical incidence, Reviews of Geophysics, 11(1), 1-35.   DOI
3 Bae, S. H., 2013, Temporal spatial rainfall characteristics in urban area considering climite change, M.Sc, Kyungpook National University.
4 Ceecchini, M. A., Machado, L. A. T., Artaxo, P., 2014, Droplet size distribution as a function of rainy system type and cloud condensation nuclei concentrations, Atmospheric Research, 143, 301-312.   DOI
5 Cheon, E. J., 2016, Case study on the physical properties of precipitation and synoptic meteorological patterns using 2d-video distrometer and Parsivel, M.S. Thesis. Gimhae, Inje University, 2016 : 1-132(Korean).
6 Gunn, R., Kinzer, G. D., 1949, The terminal velocity of fall for water droplets in stagnant air, Journal of Meteorology, 6(4), 243-248.   DOI
7 Hagen, M., Yuter, S., 2003, Relations between radar reflectivity, liquid water content, and rainfall rate during the MAP SOP, Quarterly Journal of the Royal Meteorological Society, 129(588), 477-493.   DOI
8 Kim, H. J., The characteristics of drop size distribution in relation to the precipitaion system around MT. Halla, Jeju in summer, 2012. M.S. Thesis. Pukyong National University, 2015 (Korean).
9 Kim, H. L., Park, H. S., Park, H. S., et al., 2014, Study on the application of 2D video disdrometer to develope the polarimetric radar data simulator, Journal of Korea Meteorological Society, 24(2), 173-188.
10 Korea Meteorological Administration (KMA), An interpretation of the meteorological terminology, KMA, 2002: 1-149.
11 Kruger, A., Krajewski, W. F., 2002, Two-dimensional video disdrometer: A description, Journal of Atmospheric and Oceanic Technology, 19(5), 602-617.   DOI
12 Lee, B. S., Heavy Rainfall, Gyouhak press, 1986 : 15-29.
13 MacFarquhar, G. M., List, R., 1993, The effect of curve fits for the disdrometer calibration on raindrop spectra, rainfall rate, and radar reflectivity, Journal of Appled Meteorology, 32, 774-782.   DOI
14 Park, J. K., Jang, E. S., Choi, H. J., 2005, Investigation of characteristic and states of natural disaster for water resources disasters control in Gyeongsangnam-do, Journal of the Environmental Sciences, 15(6), 621-627.
15 Park, J. K., Lee, B. Y., 1993, The characteristics of the anomaly level and variability of the monthly precipitation in Gyeongnam, Korea, Journal of the Environmental Sciences, 2(3), 179-191.
16 Park, C. Y., Moon, J. Y., Cha, E. J., Yun, W. T., Choi, Y. E., 2008, Recent changes in summer precipitation characteristics over south korea, Journal of the Korean Geographic Society, 324-336.
17 Pruppacher, H. R., Beard, K. V., 1970, A wind tunnel investigation of the internal circulation and shape of water drops falling at terminal velocity in air, Quarterly Journal of the Royal Meteorological Society, 96(408), 247-256.   DOI
18 Park, J. K., Seong, I. C., Kim, B. J., Jung, W. S., Lu, R. Y., 2013, On the characteristics of hourly precipitation intensity variation according to climate change in the Korean Peninsula, Disaster Advances, 6(8), 60-72.
19 Park, J. K., Seong, I. C., Kim, B. J., Jung, W. S., Lu, R. Y., 2014, On the characteristics of the precipitation patterns in korea due to climate change, Journal of Environmental Science International, 23(1), 25-37.   DOI
20 Poiares Baptista, J. P. V., 1992, Proceedings of the 17th meeting of the olympus propagation experimenters, Stockholm/Helsinki, Minutes of Radar Working Group, pp. 36-40, May 03-05.
21 Seong, I. C., 2012, Case study on torrential heavy rain and characteristics of hourly precipitation caused by sub-tropicalization. M.S. Thesis. Gimhae, Inje University, 1-66(Korean).
22 Sheppard, B. E., Joe, P. I., 1994, Comparison of raindrop size distribution measurements by a Joss-Waldvogel disdrometer, a PMS 2DG spectrometer, and a POSSS Doppler radar. Journal of Atmospheric and Oceanic Technology, 11(4), 874-887.   DOI
23 Thurai, M., Bringi, V. N., 2005, Drop axis ratios from a 2D video disdrometer. J. Atmos. Oceanic Technol., 22 : 966-978.   DOI
24 Tokay, A., Wolff, D. B., Wolff, K. R., et al., 2003, Rain gauge and disdrometer measurements during the keys Area Microphysics Project (KAMP), Journal of Atmospheric and Oceanic Technology, 20, 1460-1477.   DOI