Analysis on Rainfall Spatial Distribution and Rainfall Energy in a Large Rainfall Simulator with Fixed Nozzle Arrangement (고정식 노즐을 가진 대형 인공강우장치의 공간적 균질성과 강우에너지 분석)

Hun Choi (최훈); Chanjoo LEE (이찬주); Jin Kwan Kim (김진관)

doi:10.25202/JAKG.7.1.4

Analysis on Rainfall Spatial Distribution and Rainfall Energy in a Large Rainfall Simulator with Fixed Nozzle Arrangement

Journal of the Association of Korean Geographers
Abbr : JAKG
2018, 7(1), pp.43-53
DOI : 10.25202/JAKG.7.1.4
Publisher : Association of Korean Geographers
Research Area : Social Science > Geography
Received : October 24, 2017
Accepted : December 4, 2017

Hun Choi ¹, Chanjoo LEE ², Jin Kwan Kim ³

¹전남대학교 사회교육학과
²한국건설기술연구원
³전남대학교 지리교육과

Accredited

ABSTRACT

Many studies related to soil erosion and landslides have been conducted using artificial rainfall to overcome limits of an experiment using natural rainfall. Ranges of rainfall intensity and space from rainfall simulators were presented in the previous studies, but the study for raindrops’ characteristics from a rainfall simulator is not sufficient. To more clarify and better understand the results from soil erosion and/or landslides experiments using rainfall simulator, the raindrops’ characteristics from a large-sized rainfall simulator (KICT-ERS) installed in Korea Institute of Civil Engineering and Building Technology (KICT) were measured under different conditions by a laser-optical disdrometer and Christiansen’s Coefficient of Uniformity (CU) was calculated. Rainfall intensity and CU were increased as input current increased. When input current was 1.7 kgf/cm2, CU was 70.68%, but when input current was 2.6 kgf/cm2 and 2.9 kgf/cm2, CU was 82.29% and 81.11%, respectively. Raindrops’ size was decreased as input current increased. Changes of raindrops’ size due to rainfall intensity affect to rainfall kinetic energy and momentum. This result can propose suitable operating conditions for soil erosion and/or landslide experiments. Therefore, this study may contribute to better understanding and more clarifying the results of the previous and future studies of erosion and/or landslide experiments using KICT-ERS.

KEYWORDS

Soil erosion, Rainfall simulator, Raindrop size, Rainfall intensity, Kinetic energy, Momentum

Citation status

* References for papers published after 2023 are currently being built.

[journal] 김진관 / 2016 / Suggestion for the Optimum Operating Methods of Rainfall Simulator through the Analysis of Raindrop’s Characteristics / 한국지리학회지 / 한국지리학회 5(1) : 51~60

[journal] 김진관 / 2007 / The Effects of Mud Content, Slope Angle, and Soil Water Changes on Interrill Erosion Using by Single-sized Multi-drop Rainfall Simulator / 한국지형학회지 / 한국지형학회 14(3) : 115~121

[journal] 김진관 / 2016 / Oscillating Rainfall Simulator Using Veejet Nozzle: Set-up and Calibration for Soil Erosion and Failure Studies / 한국지리학회지 / 한국지리학회 5(2) : 133~142

[journal] 김성수 / 2005 / Mobility of pesticides in different slopes and soil collected from Ganwon alpine sloped-land under simulated rainfall conditions / 농약과학회지 / 한국농약과학회 9(4) : 316~329

[confproc] 신민환 / 2009 / 실내인공강우기를 이용한 경사지 밭의 토양유실량과 오염부하 모의 / 한국수자원학회 2009년도 학술발표회 초록집 : 986~990

[journal] 이찬주 / 2015 / Analysis on Rainfall Distribution in a Large Experimental Rainfall Simulator with Fixed Nozzle Arrangement / 한국산학기술학회논문지 / 한국산학기술학회 16(12) : 8116~8127

[journal] 최광용 / 2013 / Spatio-Temporal Patterns of Intra-annual Extreme Precipitation Events in the Republic of Korea / 한국지리학회지 / 한국지리학회 2(2) : 137~145

[journal] Agassi, M. / 1999 / Methodologies for interrill soil erosion studies / Soil and Tillage Research 49(4) : 277~287

[book] Christiansen, J.E. / 1942 / Irrigation by Sprinkling / University of California Berkeley

[journal] Fornis, R. L. / 2005 / Kinetic energy–rainfall intensity relationship for Central Cebu, Philippines for soil erosion studies / Journal of Hydrology 300(1) : 20~32

[journal] Guhathakurta, P. / 2011 / Impact of climate change on extreme rainfall events and flood risk in India / Journal of Earth System Science 120(3) : 359~373

[journal] Günn, R. / 1949 / The terminal velocity of fall for water droplets in stagnant air / Journal of Meteorology 6(4) : 243~248

[journal] Iserloh, T. / 2012 / A small portable rainfall simulator for reproducible experiments on soil erosion / Soil and Tillage Research 124 : 131~137

[journal] Jakob, M. / 2009 / Climate change effects on landslides along the southwest coast of British Columbia / Geomorphology 107(3) : 275~284

[journal] 김진관 / 2010 / Evaluating Physical Characteristics of Raindrop in Anseong, Gyeonggi Province / 한국지형학회지 / 한국지형학회 17(1) : 49~57

[journal] Kim, M. S. / 2015 / Effect of topography and soil parameterisation representing soil thicknesses on shallow landslide modelling / Quaternary International 384 : 91~106

[journal] Kim, M. S. / 2018 / Effect of seepage on shallow landslides in consideration of changes in topography: Case study including and experimental sandy slope with artificial rainfall / Catena 161 : 50~62

[journal] Kinnell, P. I. A. / 1981 / Rainfall intensity-kinetic energy relationships for soil loss prediction / Soil Science Society of America Journal 45(1) : 153~155

[journal] Laws, J. O. / 1940 / Recent studies in raindrops and erosion / Agricultural Engineering 21 : 431~433

[book] Lal, R. / 1994 / Soil Erosion: Research Methods / CRC Press

[journal] Lascelles, B. / 2000 / Spatial and temporal variation in two rainfall simulators: Implications for spatially explicit rainfall simulation experiments / Earth Surface Processes and Landforms 25(7) : 709~721

[journal] Lim, Y. S. / 2015 / Analysis of the relationship between the kinetic energy and intensity of rainfall in Daejeon, Korea / Quaternary International 384 : 107~117

[journal] Marshall, J. S. / 1947 / Measurement of rainfall by radar / Journal of Meteorology 4(6) : 186~192

[book] Morgan, R.P.C. / 2009 / Soil Erosion and Conservation / John Wiley & Sons

[journal] Rose, C. W. / 1960 / Soil detachment caused by rainfall / Soil Science 89(1) : 28~35

[journal] Salles, C. / 2000 / Rain properties controlling soil splash detachment / Hydrological Processes 14(2) : 271~282

[journal] Salles, C. / 2002 / Kinetic energy of rain and its functional relationship with intensity / Journal of Hydrology 257(1) : 256~270

[journal] Sanchez-Moreno, J. F. / 2012 / Rainfall kinetic energy– intensity and rainfall momentum–intensity relationships for Cape Verde / Journal of Hydrology 454 : 131~140

[journal] Van Dijk, A. I. J. M. / 2002 / Rainfall intensity–kinetic energy relationships: A critical literature appraisal / Journal of Hydrology 261(1) : 1~23

[web] / 국내기후자료(과거자료: 1987-2016년) / 기상청 홈페이지 / http://www.weather.go.kr/weather/climate/past_cal.jsp

This paper was written with support from the National Research Foundation of Korea.

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Journal of the Association of Korean Geographers 2023 KCI Impact Factor : 1.35

Analysis on Rainfall Spatial Distribution and Rainfall Energy in a Large Rainfall Simulator with Fixed Nozzle Arrangement

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* References for papers published after 2023 are currently being built.

Journal of the Association of Korean Geographers 2023 KCI Impact Factor : 1.35

Analysis on Rainfall Spatial Distribution and Rainfall Energy in a Large Rainfall Simulator with Fixed Nozzle Arrangement

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