PEMETAAN DATA RECHARGE AIR TANAH DI KABUPATEN SLEMAN BERDASARKAN DATA CURAH HUJAN

Water is a basic need for humans and other living things. Various sources of water on this earth has formed a system of close interaction with the components of living things in it. Over the years, water resources have changed in terms of both quality and quantity. This can be due to population growth in addition to the natural changes in nature. The more narrow field of water absorption followed by high water consumption causes the supply of ground water reserves can be threatened. So, we need a mapping and ground water recharge calculations to assist in the monitoring of groundwater reserves.The method used in this research is the Water Balance (keseimbangan air)method. This method is based on any incoming rain water will be equal to the output evapotranspiration and runoff hereinafter this method is applied in the application. Factors affecting groundwater recharge the water balance method is precipitation, evapotranspiration and run off. Information og groundwater recharge is also displayed on the map using Google Map function are related to the database system to produce informative mapsCalculation of groundwater recharge is applied to the daily rainfall data input into the application which then included in the water balance equation method so it can be easy to determine the value of groundwater recharge. Groundwater recharge information can be displayed in the form of mapping, making them easier to understand visually.Based on testing, the highest recharge results of this research on the Kemput station is 1119,5 mm/year with rainfall of 2750 mm/year. Seyegan and Bronggang station is 1026,25 mm/year with rainfall of 2625 mm/year. Angin-angin and Prumpung station is 933 mm/year with rainfall of 2500 mm/year. Beran and Gemawang station is 839.5 mm/year with rainfall of 2375 mm/year. Plataran station is 808.42 mm/year with rainfall of 2333 mm/year. Godean station is 699.5 mm/year with rainfall of 2187 mm/year and the lowest at Tirto Tanjungand Santan stastion 560 mm / year with rainfall of 2000 mm / year.

Download Full-text

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

Ethiopian Journal of Environmental Studies and Management ◽

10.4314/ejesm.v9i6.4 ◽

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

Download Full-text

A method for simulating transient ground-water recharge in deep water-table settings in central Florida by using a simple water-balance/transfer-function model

Scientific Investigations Report ◽

10.3133/sir20045195 ◽

2004 ◽

Cited By ~ 6

Author(s):

Andrew M. O'Reilly

Keyword(s):

Transfer Function ◽

Water Balance ◽

Ground Water ◽

Water Table ◽

Deep Water ◽

Transfer Function Model ◽

Function Model ◽

Central Florida ◽

Ground Water Recharge ◽

Water Recharge

Download Full-text

SIMWASER model as a tool for the assessment of soil water balance

Plant Soil and Environment ◽

10.17221/3609-pse ◽

2011 ◽

Vol 51 (No. 8) ◽

pp. 343-350 ◽

Cited By ~ 1

Author(s):

M. Šťastná ◽

E. Stenitzer

Keyword(s):

Water Balance ◽

Ground Water ◽

Soil Water ◽

Field Experiments ◽

Capillary Rise ◽

Shallow Groundwater ◽

Soil Water Balance ◽

Water Balance Components ◽

Ground Water Recharge ◽

Water Recharge

The objectives of our study were to apply, test and to present the ability of the deterministic simulation model SIMWASER computing soil-water balance components. Two case studies for the assessment of percolation losses from irrigated carrots to deep groundwater at Obersiebenbrunn in the Marchfeld (Austria) and ground water recharge and capillary rise from shallow groundwater in grass lysimeters at Berlin-Dahlem (Germany) are presented to demonstrate the performance of the model by a comparison between measured and simulated results from the field experiments. At Obersiebenbrunn, simulated percolation and evapotranspiration were 183 and 629 mm, while the respective measured values amounted to 198 and 635 mm. In Berlin-Dahlem simulated capillary rise and evapotranspiration were –122 and 458 mm, whereas the measurement showed –155 and 454 mm. These results showed the SIMWASER method as a good applicable tool to demonstrate and study plant – soil – water relationships as well as influence of land use, especially on ground water recharge.

Download Full-text