Groundwater level

This paper presents the results and assessment of the groundwater exploitation reserves in coastal areas of Ninh Thuan province. The research was based on determining the exploitation reserves of all grid cells with dimensions 500 m × 500 m distributed in fresh-salted water areas of the Holocene (qh) and Pleistocene (qp) aquifers. Each grid was assigned the corrected hydrogeological parameter values (depth, gravity coefficient, hydraulic conductivity, and drawdown level).

15p dianmotminh02 03-05-2024 7 2   Download

This study evaluated the groundwater levels (GWLs) and groundwater quality of Can Tho city using statistical analysis and a Groundwater Quality Index (GWQI). In addition, the groundwater recharge potential from rainfall was investigated for the period 2001-2009.

17p viannee 02-08-2023 5 2   Download

The presence of groundwater can lead to troublesome conditions when construction operations are to take place below the original groundwater level. There are several techniques or methods available for designing of groundwater lowering systems for a construction project. The selection of a technique or techniques appropriate to a particular project at a particular site or country will depend on many factors.

9p viironman 02-06-2023 5 3   Download

Four interpolation methods are applied to interpolate shallow groundwater level in Pleiku city, including inverse distance weighted, tension spline, universal kriging, and ordinary kriging. The cross-validation results record that the ordinary kriging is the best interpolation method which is shown by the lowest RMSE value, the highest R2 value.

5p vichristinelagarde 04-07-2022 10 2   Download

Lecture Introduction to civil and environmental engineering (CE 107): Chapter 9 after studying this section will help you understand: sources and processes of water pollution (surface water and groundwater). National drinking water standards (Maximum contaminant level for inorganics, organic chemicals , herbicides, VOCs and microbiological organisms).

26p huangminghao_1902 27-02-2022 12 1   Download

Before this earthquake, water resources were monitored in the areas of Bayraklı, Gülbahçe, and Seferihisar. For this purpose, 10 groundwater monitoring wells were drilled in the Bayraklı area, where groundwater level, temperature, and electrical conductivity changes were monitored at 1-h intervals in 5 wells. Besides physical parameters such as groundwater levels, temperatures and electrical conductivities, hydrogeochemical cations, and anions measured in the study area. Change in the groundwater levels was observed before, during, and after the Samos earthquake.

21p tanmocphong 29-01-2022 10 0   Download

Land subsidence occurred by groundwater pumping was confirmed in Ca Mau Province, Vietnam by our field survey. In order to elucidate the mechanism of land subsidence, it is necessary to clarify its characteristics and actual land subsidence damages (e.g. uplift, inclination etc. of the buildings).

3p viwendy2711 05-10-2021 16 1   Download

The Mekong Group has investigated land subsidence in Ca Mau Province, Vietnam since November 2017. According to the uplifting phenomenon survey of the existing deep wells, the maximum uplifting rate of 2 cm/year was confirmed. Continuous monitoring of ground compaction and groundwater level at existing abandoned wells also showed the compaction occurs with lowering of groundwater level.

3p viwendy2711 05-10-2021 8 1   Download

The main goal of this study is to determine the seasonal changes in groundwater level and quality in Xuan Mai, Hanoi, Vietnam. This study provides a scientific and practical basis for analyzing groundwater variation and water quality in different season and some solutions for the proper use of this valuable resource

11p retaliation 18-08-2021 13 1   Download

Utilization of Coal bottom ash (CBA) as well as finding the solutions to prevent saline intrusion, meeting the needs of coastal infrastructure development have been considered by the authors of the article for a long time. In this study, the authors focused on analyzing capillary characteristics in order to find a suitable group of CBA particles, which can be applied in the design of foundations with the high ability in restricting or preventing the effects of salt in saline groundwater.

11p larachdumlanat129 14-01-2021 4 1   Download

Dong Nai Province has abundant surface and groundwater resources. However, in recent years, due to the impact of climate change, there have been unusual changes, hot weather has occurred in the rainy season, rainfall has been distributed. Climate change strongly affects water resources in all aspects: flooding, changing water levels, saline intrusion ... Changes in water resources will affect related areas: changes in exploitation, using and managing, adjusting and changing policies and laws related to water resources.

7p quenchua9 20-11-2020 29 1   Download

This research has analyzed, evaluated ground water salinity in Hau Loc district, Thanh Hoa province by determining the concentration Chloride-Silver nitrate titration with Chromate indicator (MO Method) and establishing a zoning map of salinity. The results showed the groundwater at researched areas was being saline over the allowable standards many times. The highest salinity concentration of Cl- exceeded 15 times the allowable standards. This study consequently proposed some solutions for efficient using of water and reducing the groundwater salinity level in the region.

8p cothumenhmong8 05-11-2020 20 2   Download

In India, agriculture is important occupation of which 52.00 per cent of the people depend for their livelihood. Although agriculture dominates the primary sector however it has not reached its potential level, since most of the farmers use traditional technology, slow adoption of modern and proven technologies which impaired productivity and results in lower standard living of the framers in the region.

11p kethamoi7 26-08-2020 17 2   Download

Groundwater (GW) trend analysis provides an early warning system for changes in water table caused by climatic conditions or in response to human activities such as water withdrawal. This analysis investigates the pattern and trends of the seasonal groundwater level data of Arpa River Basin in Bilaspur district, Chhattisgarh for the period from 1984 to 2015. A study was under taken for identifying the trends in pre- and post-monsoon groundwater levels using non parametric Mann-Kendall test and Sen's slope estimator for time series modelling and forecasting of pre- and postmonsoon groundwater.

12p nguaconbaynhay7 15-08-2020 22 4   Download

The rice-wheat rotation is one of the world’s largest agricultural production systems occupying about 85% of the cultivated land in the Indo-Gangetic Plains (IGP) and nearly one-sixth of the total geographical area of the sub continent. The system accounts for about one-third of the area of both rice and wheat grown in South Asia. Rice-wheat rotations produce more than 45% of the region’s food and provide staple grains for nearly 42% of the total population of 1.3 billion of South Asia.

11p nguaconbaynhay6 24-06-2020 8 0   Download

A proper design of the architecture of Artificial Neural Network (ANN) models can provide a robust tool in water resources modelling and forecasting. The performance of different neural networks in groundwater level forecasting was examined in order to identify an optimal ANN model for groundwater level forecast. The Devasugur nala watershed was selected for the study, located at northern part of Raichur district Karnataka and comes under middle Krishna river basin.

10p nguaconbaynhay6 23-06-2020 38 1   Download

Water is one of the most essential commodities for mankind and the largest available source of fresh water lays underground. Tremendous increase in the agricultural, industrial and domestic activities in recent years has increased the demand for good quality water to meet the growing needs. Groundwater is mostly preferred to meet this growing demand because of its lower level of contamination and wider distribution. The occurrence of groundwater is a consequence of the interaction of the climatic, geological, hydrological and physiographical factors.

8p quenchua6 15-06-2020 15 1   Download

The present study attempts to determine groundwater recharge of the two over exploited blocks of Karur district in Amaravathy basin viz., Aravakurichi and K. Paramathi by water table fluctuation method. Rainfall data of eight rain gauge stations for 30 years (1982- 2012) and water level data of twenty three stations were collected from the office of State Ground and Surface Water Resources Data Centre, Tharamani, Chennai for analysis.

9p angicungduoc5 14-06-2020 14 1   Download

Due to industrialization and urbanization the problem of providing good quality water for drinking and irrigation has become very critical now in Karur district. Hence, in this study, emphasis has been given to water quality for drinking and irrigation in Karur district. In order to assess the groundwater quality, samples were collected from Aravakurichi and K.

15p angicungduoc5 14-06-2020 11 0   Download

Among the many natural resources water is the most important resource .Without water we cannot survive for more than few hours .level of groundwater is going down at a very fast speed and If this continues the day will come when there will be a third world war for the water itself .

7p orianahuynh 08-06-2020 13 1   Download