Surface and groundwater flow modeling for calibrating steady state using MODFLOW in Colorado River Delta, Baja California, Mexico

2017 ◽  
Vol 3 (2) ◽  
pp. 815-824 ◽  
Author(s):  
Kedir Mohammed Bushira ◽  
Jorge Ramirez Hernandez ◽  
Zhuping Sheng
Keyword(s):  
Steady State ◽  
Groundwater Flow ◽  
Baja California ◽  
Colorado River ◽  
River Delta ◽  
Flow Modeling ◽  
Groundwater Flow Modeling ◽  
Colorado River Delta ◽  
Surface And Groundwater

Structural Geometry of a Sector of the Colorado River Delta, Baja California, Mexico, Based on Seismic Reflections

2014 ◽  
Vol 171 (7) ◽  
pp. 1107-1127 ◽  
Author(s):  
J. Juan Chanes-Martínez ◽  
Mario González-Escobar ◽  
Francisco Suárez-Vidal ◽  
Clemente G. Gallardo-Mata
Keyword(s):  
Baja California ◽  
Colorado River ◽  
River Delta ◽  
Structural Geometry ◽  
Colorado River Delta ◽  
Seismic Reflections

scholarly journals Steady State Groundwater Flow Modeling of an Ex-Landfill Site in Kuala Lumpur, Malaysia

2015 ◽  
Vol 11 (5) ◽  
pp. 348-357 ◽  
Author(s):  
Mustapha Atta ◽  
Wan Zuhairi Wan Yaacob ◽  
Othman Bin Jaafar
Keyword(s):  
Steady State ◽  
Groundwater Flow ◽  
Landfill Site ◽  
Flow Modeling ◽  
Kuala Lumpur ◽  
Groundwater Flow Modeling

Steady-state saturated groundwater flow modeling with full tensor conductivities using finite differences

2010 ◽  
Vol 36 (10) ◽  
pp. 1211-1223 ◽  
Author(s):  
Liangping Li ◽  
Haiyan Zhou ◽  
J. Jaime Gómez-Hernández
Keyword(s):  
Steady State ◽  
Groundwater Flow ◽  
Finite Differences ◽  
Flow Modeling ◽  
Groundwater Flow Modeling

Distribution of Selenium, Molybdenum and Uranium in Sediment Cores from the Colorado River Delta, Baja California, Mexico

2011 ◽  
Vol 88 (1) ◽  
pp. 104-107 ◽  
Author(s):  
A. Orozco-Durán ◽  
L. W. Daesslé ◽  
E. A. Gutiérrez-Galindo ◽  
A. Muñoz-Barbosa
Keyword(s):  
Baja California ◽  
Colorado River ◽  
Sediment Cores ◽  
River Delta ◽  
Colorado River Delta

scholarly journals Numerical Groundwater Flow Modeling of Dijil River Catchment, Debre Markos Area, Ethiopia

2021 ◽  
Vol 13 (1) ◽  
pp. 89-109
Author(s):  
Tadesse Ketemaw ◽  
Abdelwassie Hussien ◽  
Fethangest Woldemariyam Tesema ◽  
Berihu Abadi Berhe
Keyword(s):  
Steady State ◽  
Groundwater Flow ◽  
Conceptual Model ◽  
Water Budget ◽  
Drainage Basin ◽  
System Response ◽  
Flow Modeling ◽  
Groundwater Flow Modeling ◽  
River Catchment ◽  
Budget Analysis

Dijil River catchment is a sub-catchment of the Abay drainage basin and covers 138.28 km2. This paper presents numerical groundwater flow modeling at steady-state conditions, in a single-layer aquifer system under different stress or scenarios. A numerical groundwater flow models represent the simplification of complex natural systems, different parameters were assembled into a conceptual model to represent the complex natural system in a simplified form. The conceptual model was input into the numeric model to examine the system response. Based on geologic and hydrogeological information, confined subsurface flow condition was considered and simulated using MODFLOW 2000. The model calibration accounts matching of 24 observation points with the simulated head with a permissible residual head of ±10m. The sensitivity of the major parameters of the model was identified during the calibration process. According to the simulated water budget in the model, the simulated inflow is found to be 1.2791870E+05 m3/day which is nearly equal to the simulated outflow of 1.2791755E+05 m3/day with the difference being only 1.1484375E+00 m3/day. Water budget analysis reveals that outflow from river leakage accounts for 92.8 % of the total outflow and 14.1 % of the total inflow comes from the river leakage in the study area. Three scenarios of increased withdrawals and one scenario of altered recharge were used to study the system response. Accordingly, an increase in well withdrawal in scenario-I (existing wells pump simultaneously), scenario-II (existing drilled wells yield withdrawal increased by 30%), and scenario-III (additional eight wells having expected yield of 30 l/s drill and pump) resulted in an average decline of the steady-state water level by 1.06m, 1.68m, and 4.46m, respectively. They also caused the steady-state stream leakage to be reduced by about 2.93%, 4.58%, and 11.23%, and subsurface outflow by 9.41%, 14.67%, and 37.86%, respectively. A decrease in recharge by 25% and 50% results in a decrease of the head by 6.1m and 13.4m respectively, and a stream leakage decrease by 20.3%, and 40.3% respectively as compared to the simulated steady-state value. Therefore, adequate groundwater level monitoring wells should be placed in the catchment to control the total abstraction rates from the aquifer and fluctuations in groundwater levels.

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