How do you evaluate groundwater potential?

How do you evaluate groundwater potential?

To evaluate groundwater prospect of the area, identification and classification of the basic baseline maps of geomorphology, soil, lineament density, drainage density, land use land cover (LULC), slope, lithology and rainfall of the catchment were done.

What is ground water potential?

Groundwater storage potential here refers to the total amount of permanent storage that exists in the aquifers. Groundwater storage potential is the function of the porosities of the rocks and amount of open space in rocks that could store water.

What is potential zone?

Very high and high groundwater potential zones are confined generally to high rainfall regions which in turn have high infiltration potential. The moderate groundwater potential zones occur generally in the valleys and areas of high drainage density.

Where water comes out from under the ground?

Location (aquifers) An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well.

What is groundwater potential zone mapping?

Mapping groundwater potential zones is essential for planning the location of new abstraction wells to meet the increasing demand for water. The occurrence, distribution, and movement of groundwater mainly depend upon the geological and hydro-geomorphological features of the area.

What is a groundwater potential map?

Groundwater mapping has been defined as a tool for systematic development and planning of water resources (Elbeih 2015). Hydrogeological maps provide spatially distributed information about aquifers, including their geological, hydrogeological and hydrochemical characteristics.

What is groundwater potential of India?

Replenishable annual groundwater availability in India is 398 × 109 m3, which translates into 120 mm for the country as whole, whereas it varies from more than 500 mm in the northern alluvial areas to less than 50 mm in the western part of the country (Fig.

Which is most Favourable for groundwater potential zone?

The areas with 6°–16° slope are considered as ‘good’ for groundwater storage due to slightly undulating topography with some runoff.

What is lineament density?

The lineament density was defined as the total length of all the recorded lineaments divided by the area under consideration (Edet et al., 1998). The lineament density of the study area can be grouped into five classes: 0–0.15, 0.16–0.43, 0.44–0.73, 0.74–1.11, and 1.12–2.1 km/km2 (Fig.

What does recharge zone mean?

Recharge zone means the zone which contributes water to an aquifer, consisting of the catchment area of rainfall water and the area where such water flows to an aquifer by runoff on the ground and infiltration through soil; Sample 1Sample 2Sample 3.

Which state has the highest potential groundwater resources in India?

Haryana, which gets an annual precipitation of 689 millimetres (mm), holds the highest levels of usable groundwater with 3,593 centimeters (cm) while Himachal Pradesh with a precipitation of 1,147 mm per year has the lowest UGWS level of 520 cm.

What is the groundwater level in India?

In Central India water level generally varies between 5 m bgl to 20 m bgl, except in isolated pockets where water level of less than 5 m bgl has been observed. The peninsular part of country generally recorded a water level in the range of 2 to 20 m bgl depth range.

How do Geologists find underground water?

The ground penetrating radar (GPR) system is used for underground water detection. GPR is a promising technology to detect and identify aquifer water or nonmetallic mines. One of the most serious components for the performance of GPR is the antenna system.

What is the difference between fault and lineament?

A lineament is a linear feature in a landscape which is an expression of an underlying geological structure such as a fault. Typically a lineament will appear as a fault-aligned valley, a series of fault or fold-aligned hills, a straight coastline or indeed a combination of these features.

What is lineament analysis?

Lineaments are linear features which provide information about the underlying geological structure. Lineament is one of the most important features showing subsurface elements or structural weakness such as faults and is usually extracted by visual analysis of enhanced image data.

How is groundwater recharge measured?

Groundwater recharge is estimated by two methods: hydrograph analysis and water table fluctuation. In hydrograph analysis, two approaches are used, namely base-flow separation and a displacement recession curve. Figure 2 is a flowchart showing the methodology that has been used in estimating recharge.