단기 강우예측 정보를 이용한 도시하천 유출모의 적용
Application of Urban Stream Discharge Simulation Using Short-term Rainfall Forecast
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In this study, we developed real-time urban stream discharge forecasting model using short-term rainfall forecasts data simulated by a regional climate model (RCM). The National Centers for Environmental Prediction (NCEP) Climate Forecasting System (CFS) data was used as a boundary condition for the RCM, namely the Global/Regional Integrated Model System(GRIMs)-Regional Model Program (RMP). In addition, we make ensemble (ESB) forecast with different lead time from 1-day to 3-day and its accuracy was validated through temporal correlation coefficient (TCC). The simulated rainfall is compared to observed data, which are automatic weather stations (AWS) data and Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA 3B43; 3 hourly rainfall with 0.25°×0.25° resolution) data over midland of Korea in July 26-29, 2011. Moreover, we evaluated urban rainfall-runoff relationship using Storm Water Management Model (SWMM). Several statistical measures (e.g., percent error of peak, precent error of volume, and time of peak) are used to validate the rainfall-runoff model’s performance. The correlation coefficient (CC) and the Nash-Sutcliffe efficiency (NSE) are evaluated. The result shows that the high correlation was lead time (LT) 33-hour, LT 27-hour, and ESB forecasts, and the NSE shows positive values in LT 33-hour, and ESB forecasts. Through this study, it can be expected to utilizing the real-time urban flood alert using short-term weather forecast.
Abstract
In this study, we developed real-time urban stream discharge forecasting model using short-term rainfall forecasts data simulated by a regional climate model (RCM). The National Centers for Environmental Prediction (NCEP) Climate Forecasting System (CFS) data was used as a boundary condition for the RCM, namely the Global/Regional Integrated Model System(GRIMs)-Regional Model Program (RMP). In addition, we make ensemble (ESB) forecast with different lead time from 1-day to 3-day and its accuracy was validated through temporal correlation coefficient (TCC). The simulated rainfall is compared to observed data, which are automatic weather stations (AWS) data and Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA 3B43; 3 hourly rainfall with 0.25°×0.25° resolution) data over midland of Korea in July 26-29, 2011. Moreover, we evaluated urban rainfall-runoff relationship using Storm Water Management Model (SWMM). Several statistical measures (e.g., percent error of peak, precent error of volume, and time of peak) are used to validate the rainfall-runoff model’s performance. The correlation coefficient (CC) and the Nash-Sutcliffe efficiency (NSE) are evaluated. The result shows that the high correlation was lead time (LT) 33-hour, LT 27-hour, and ESB forecasts, and the NSE shows positive values in LT 33-hour, and ESB forecasts. Through this study, it can be expected to utilizing the real-time urban flood alert using short-term weather forecast.
참고문헌 (20)
- Ahasan, M. N., "Simulation of flood producing rainfall event of 29 July 2010 over north-west Pakistan using WRF-ARW medel", Natural Hazards, 69(1), pp.351~363 (2013)
- 변의용, "WRF 기반 공군 단기 수치 예보 시스템 : 2009년 하계 모의 성능 검증", 대기, 21(2), pp.197~208 (2011), 한국기상학회
- Fiori, E., "Analysis and hindcast simulations of an extreme rainfall event in the Mediterranean area: The Genoa 2011 case", Atmoshperic Research, 138, pp.13~29 (2014)
- 홍성유, "The Global", Regional Integrated Model System (GRIMs), 2013, pp.49(2), 219~243[DOI]
- Hong, S.-Y., "An Evaluation of the NCEP RSM for Regional Climate Modeling", J. Climate, 12, pp.592~609 (1999)
- Huffman, G. J., "The TRMM Multisatellite Precipitation Analysis (TMPA): Quasiglobal, multiyear, combined-sensor precipitation estimates at fine scales", J. Hydrometeor, 8, pp.38~55 (2007)
- Ji, F., "Evaluating rainfaill patterns using physics scheme ensembles from a regional atmospheric model", Theoretical and applied climatology, 115(1-2), pp.297~304 (2014)
- Jiehua, Ma., "Dynamic downscaling of summer precipitation prediction over China in 1998 using WRF and CCSM4", Advances in Atmospheric Sciences, 32(5), pp.577~584 (2015)
- Junag, H.-M. H., "The NCEP Regional Spectral Model: An update", Bull. Amer. Meteor. Soc, 78, pp.2125~2143 (1997)
- 김종석, "Monte Carlo Simulation을 이용한 도시하천의 고수위 Rating Curve 개발", 대한토목학회논문집(국문), 33(4), pp.1433~1446 (2013), 대한토목학회[DOI]
- Dong-Kyou Lee, "Sensitivity Study of Integration Time-step Size in Simulations of Heavy Rainfall", 한국기상학회지, 42(6), pp.379~388 (2006), 한국기상학회
- Lee, J.-W., "A numerical simulation study of orographic effects for a heavy rainfall event over Korea using the WRF model", Atmosphere, 16(4), pp.319~332 (2006)
- Ji-Woo Lee, "Potential for added value to downscaled climate extremes over Korea by increased resolution of a regional climate model", Theoretical and Applied Climatology, 117(3-4), pp.667~677 (2014), Springer Nature[DOI]
- Ji-Woo Lee, "Assessment of future climate change over East Asia due to the RCP scenarios downscaled by GRIMs-RMP", Climate Dynamics, 42(3-4), pp.733~747 (2014), Springer Nature[DOI]
- Ryu, G. H., "Rain rate characteristics over the Korean peninsula and improvement of the Goddard Profiling (GPROF) database for TMI rainfall retrievals", Journal of Applied Meteorology, 51, pp.789~798 (2012)
- S. Saha, "The NCEP Climate Forecast System", Journal of Climate, 19(15), pp.3483~3517 (2006), American Meteorological Society[DOI]
- Sohn, B. J., "Validation of satellite-based high-resolution rainfall products over the Korean peninsula using data from a dense rain gauge network", Journal of Applied Meteorology and Climatology, 49, pp.701~714 (2010)
- Yhang, Y.-B., "Improved physical processes in a regional climate model and their impact on the simulated summer monsoon circulations over East Asia", J. Climate, 21, pp.963~979 (2008)
- Yoo-Bin Yhang, "A Simulated Climatology of the East Asian Summer Monsoon Using a Regional Spectral Model", 한국기상학회지, 44(4), pp.325~339 (2008), 한국기상학회
- Sun-Kwon Yoon, "Urban stream overflow probability in a changing climate: Case study of the Seoul Uicheon Basin, Korea", Journal of Hydro-environment Research, 13, pp.52~65 (2016), Elsevier BV[DOI]