scholarly journals A combined rainfall infiltration model based on Green-Ampt and SCS-curve number

2014 ◽  
Vol 29 (11) ◽  
pp. 2628-2634 ◽  
Author(s):  
Jun Li ◽  
Zhonggen Wang ◽  
Changming Liu
Keyword(s):  
Curve Number ◽  
Rainfall Infiltration ◽  
Infiltration Model ◽  
Scs Curve Number ◽  
Model Based

scholarly journals Hydrological control of large hurricane-induced lahars: evidences from rainfall, seismic and video monitoring

2017 ◽  
Author(s):  
Lucia Capra ◽  
Velio Coviello ◽  
Lorenzo Borselli ◽  
Víctor-Hugo Márquez-Ramírez ◽  
Raul Arámbula-Mendoza
Keyword(s):  
Real Time ◽  
Maximum Flow ◽  
Curve Number ◽  
Rainfall Infiltration ◽  
Peak Discharge ◽  
River Channels ◽  
Sediment Delivery ◽  
Arrival Times ◽  
Infiltration Model ◽  
Active Channels

Abstract. The Volcán de Colima, one of the most active volcanoes in Mexico, is commonly affected by tropical rains related to hurricanes that form over the Pacific Ocean. In 2001, 2013 and 2016 hurricanes Jova, Manuel and Patricia, respectively, promoted tropical storms that accumulated up to 400 mm of rain in 36 hrs, with maximum intensities of 50 mm/hrs. Effects were devastating, with the formation of multiple lahars along La Lumbre and Montegrande ravines, which are the most active channels in sediment delivery on the S-SW flank of the volcano. Deep erosion along the river channels and several landslides at their side were observed, and damages to bridges and paved roads for the arrival of block-rich fronts resulted in the distal reach of the ravines. Based on data from real-time monitoring (including images, seismic records and rainfall data), the temporal sequence of these events is reconstructed and analyzed with respect to the rainfall characteristics and the hydrological response of the watersheds based on rainfall/infiltration numerical simulation. For the studied events, lahars occurred after 5–6 hours since rainfall started, lasted several hours and were characterized by several pulses with block-rich fronts and a maximum flow discharge of 900 m3/s. Rainfall/infiltration simulations were performer with the Flo-2D code using the SCS-Curve number infiltration model. Results show different behaviors for the arrival times of the first lahar pulses that correlate with the catchment’s peak discharge for La Lumbre ravine and with the peaks in rainfall intensity for Montegrande ravine. This different behavior is strictly related to the area and shape of these two watersheds. Nerveless, for all the analyzed cases, the largest lahar pulse always corresponds with the last one and correlates with the maximum peak discharge of these catchments. Data here presented show that main pulses within a lahar are not randomly distributed in time, and they can be correlated with rainfall peak intensity and/or watershed discharge, depending on the watershed area and shape. This outcome has important implications for hazard assessment during extreme hydro-meteorological events since it could help in real-time alert. A stormwater was here designed based on the rainfall time distribution of hurricanes Manuel and Patricia and, in case on available weather forecasts, it can be used to run simulations prior to the event, and have an estimation of the time arrivals of main pulses, usually characterized by block-rich fronts that are responsible of damage to infrastructures and loss of goods and lives.

Estimation of Runoff in GIS using SCS Curve Number for Muddehalla Watershed

2020 ◽  
Author(s):  
Arun Bagi ◽  
Aijaz Ahmad Zende ◽  
Md Umar Farooque Patel ◽  
Praveen Biradar ◽  
N. S. Inamdar
Keyword(s):  
Curve Number ◽  
Scs Curve Number

An advanced soil moisture accounting procedure for SCS curve number method

2007 ◽  
Vol 21 (21) ◽  
pp. 2872-2881 ◽  
Author(s):  
R. K. Sahu ◽  
S. K. Mishra ◽  
T. I. Eldho ◽  
M. K. Jain
Keyword(s):  
Soil Moisture ◽  
Curve Number ◽  
Soil Moisture Accounting ◽  
Scs Curve Number ◽  
Curve Number Method ◽  
Accounting Procedure

Discussion of “Infiltration Formula Based on SCS Curve Number”

1978 ◽  
Vol 104 (4) ◽  
pp. 462-464
Author(s):  
Roger E. Smith ◽  
Kenneth G. Eggert
Keyword(s):  
Curve Number ◽  
Scs Curve Number

Estimation Of Runoff By Applying SCS Curve Number Method In A Complex Arid Area:, Wadi Al-Mujib Watershed Study Case

2021 ◽  
pp. 512
Author(s):  
ميسون بركات حسين الزغول ◽  
يسرى عبدالكريم الحسبان
Keyword(s):  
Curve Number ◽  
Arid Area ◽  
Scs Curve Number ◽  
Curve Number Method ◽  
Study Case

scholarly journals Seepage Analysis on the Surface Layer of Multistage Filled Slope with Rainfall Infiltration

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Bingxiang Yuan ◽  
Zengrui Cai ◽  
Mengmeng Lu ◽  
Jianbing Lv ◽  
Zhilei Su ◽  
...  
Keyword(s):  
Rainfall Intensity ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Rainfall Infiltration ◽  
Feature Points ◽  
Saturation State ◽  
Seepage Analysis ◽  
Safety Coefficient ◽  
Infiltration Model ◽  
Saturation Region

Based on the theory of rainfall infiltration, the surface infiltration model of multilevel filled slope was established by using the SEEP/W module of GeoStudio. The changes of the volumetric water content (VWC) and pore water pressure (PWP) in the surface of the slope during the rainfall infiltration were analyzed, and the influence of the change of the rainfall conditions on the VWC and PWP was considered. The analysis showed that VWC and PWP increased when the rain fell, and the growth rate of the higher feature point was higher. The affected area was concentrated on the upper part of the surface about 0.75 m. With the increasing of rainfall intensity, the slope surface getting to transient saturation state was quick, and the time of the PWP increasing to 0 among the feature points of same elevation was shortened. Meanwhile, the PWP presented a positive value, and as the infiltration depth increased, the transient saturation region expanded. The safety coefficient of the multistage filled slope was continuously reduced; after the stop of rainfall, the VWC and the PWP decreased, and the decline rate of the higher feature points was higher. In addition, the PWP of the lower part increased, and the safety factor of the slope presented a trend of rebound.

Sign in / Sign up

Export Citation Format

Share Document