Documentation of a deep percolation model for estimating ground-water recharge

1987 ◽  
Author(s):  
H.H. Bauer ◽  
J.J. Vaccaro
Keyword(s):  
Ground Water ◽  
Percolation Model ◽  
Deep Percolation ◽  
Ground Water Recharge ◽  
Water Recharge

scholarly journals Hydrogeological deep percolation modelling of groundwater recharge in Voinjama Region, Liberia

2016 ◽  
Vol 9 (6) ◽  
pp. 700-712
Author(s):  
O.D. Onafeso ◽  
A.O. Olusola ◽  
S.A. Adeniyi
Keyword(s):  
Water Supply ◽  
Ground Water ◽  
Groundwater Recharge ◽  
Root Zone ◽  
Physical Parameters ◽  
Deep Percolation ◽  
Average Width ◽  
Percolation Method ◽  
Ground Water Recharge ◽  
Water Recharge

Indirect physical methods of assess groundwater recharge rely on the measurement or estimation of soil physical parameters, which along with soil physical principles; can be used to estimate the potential or actual recharge. However, the deep percolation method uses a daily water- budget approach to simulate deep percolation. In this method, the model computes daily fluxes of water into and out of a volume extending from the top of foliage to the bottom of the root zone and accounts for changes in water content. In most environments, deep percolation is destined to recharge the saturated systems that are tapped by wells. Deep percolation technique was deployed to determine the rate of ground water recharge in the Voinjama region of Liberia, and also establish points of lineaments where wells can be dug for water supply. The perimeter of the hypothesized basin is about 28.9km while the length of the thalweg of the mainstream is about 11km. the average width of the basin area is 5.9km while the circumference of the equivalent circular area is 25.33km and compactness coefficient (R) of the basin is computed at 1.14. The elongation ratio (Er) is computed at 0.73km. The diurnal recharge computed from Deep Percolation was 6712.21 cm3 /km2 per annum. In conclusion, this study aids the restoration of water supply system destroyed during the war periods emphasizing the abundant water in the hydrological system and viable ground water recharge adequate for exploitation in a near uniform geology. Several faults and crevices scattered abroad the area were recorded indicating good lineament distribution and abundant aquifer recharge.Keywords: Hydrogeology, Deep Percolation Method, Groundwater, Recharge

PRO-GRADE: GIS Toolkits for Ground Water Recharge and Discharge Estimation

Ground Water ◽  
2009 ◽  
Vol 47 (1) ◽  
pp. 122-128 ◽  
Author(s):  
Yu-Feng Lin ◽  
Jihua Wang ◽  
Albert J. Valocchi
Keyword(s):  
Ground Water ◽  
Ground Water Recharge ◽  
Water Recharge ◽  
Discharge Estimation

Ground-Water Recharge Strip Basin Experiments

1974 ◽  
Vol 100 (4) ◽  
pp. 569-592
Author(s):  
Richard R. Brock ◽  
Abnish C. Amar
Keyword(s):  
Ground Water ◽  
Ground Water Recharge ◽  
Water Recharge
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