scholarly journals Zoning groundwater potential recharge using remote sensing and GIS technique in the Red river delta plain

2022 ◽  
Vol 964 (1) ◽  
pp. 012025
Author(s):  
Pham Quy Nhan ◽  
Le Viet Hung ◽  
Tran Thanh Le ◽  
Thi Van Le Khoa ◽  
Dang Duc Nhan ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Groundwater Recharge ◽  
Groundwater Potential ◽  
Remote Sensing And Gis ◽  
River Delta ◽  
Red River ◽  
Red River Delta ◽  
Thematic Layers ◽  
Delta Plain ◽  
Potential Recharge

Abstract The Red River delta plain is the second largest delta in Vietnam and is located in the North of the country with an area of 14,860 km2 and residing more than 22.5 million inhabitants. Groundwater is mainly exploited in Quaternary sedimentary aquifers with a total discharge of about 3 million m3/day. Some localities have shown signs of over-exploitation such as in Hanoi and in Nam Dinh, which may lead to related problems such as depletion, subsidence, saltwater intrusion, and water pollution. In order to be able to sustainably exploit groundwater, the groundwater potential recharge needs to be estimated. There have been many studies using different methods to estimate the groundwater recharge and to zone potential recharge. In the study area, there are several studies for groundwater recharge, but some are still uncertain because of using indirect methods, some are locally estimated in specific areas. Therefore, the objective of this study is to apply remote sensing and GIS to zone the groundwater potential recharge and its verification by using radioactive isotope 3H analysis in the Red River delta plain. Various types of satellite images have been used and interpreted to detect the different thematic layers which concern the groundwater potential recharge. GIS has been applied as a platform for analysis and integration of thematic layers for zonation, finally. Field trip and water sampling for chemical and radioactive 3H analysis were also conducted. Zones with low, moderate, and high groundwater potential recharge have been delineated with good agreement from the direct estimation of groundwater recharge by radioactive isotopes 3H.

scholarly journals Identification of Groundwater Potential Recharge Zones in Flinders Ranges, South Australia Using Remote Sensing, GIS, and MIF Techniques

Water ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 2571
Author(s):  
Alaa Ahmed ◽  
Abdullah Alrajhi ◽  
Abdulaziz S. Alquwaizany
Keyword(s):  
Groundwater Recharge ◽  
Water Resource Management ◽  
South Australia ◽  
Drainage Density ◽  
Groundwater Potential ◽  
Lineament Density ◽  
Thematic Layers ◽  
Recharge Potential ◽  
Flinders Ranges ◽  
Potential Recharge

In Australia, water resource management is a major environmental, biological, and socio-economic issue, and will be an essential component of future development. The Hawker Area of the central Flinders Ranges, South Australia suffers from a lack of reliable data to help with water resource management and decision making. The present study aimed to delineate and assess groundwater recharge potential (GWRP) zones using an integration between the remote sensing (RS), geographic information system (GIS), and multi-influencing factors (MIF) approaches in the Hawker Area of the Flinders Ranges, South Australia. Many thematic layers such as lithology, drainage density, slope, and lineament density were established in a GIS environment for the purpose of identifying groundwater recharge potential zones. A knowledge base ranking from 1 to 5 was assigned to each individual thematic layer and its categories, depending on each layer’s importance to groundwater recharge potential zones. All of the thematic layers were integrated to create a combined groundwater potential map of the study area using weighting analysis in ArcGIS software. The groundwater potential zones were categorized into three classes, good, moderate, and low. The resulting zones were verified using available water data and showed a relative consistency with the interpretations. The findings of this study indicated that the most effective groundwater potential recharge zones are located where the lineament density is high, the drainage density is low, and the slope is gentle. The least effective areas for groundwater recharge are underlain by shale and siltstone. The results indicated that there were interrelationships between the groundwater recharge potential factors and the general hydrology characteristics scores of the catchment. MIF analysis using GIS mapping techniques proved to be a very useful tool in the evaluation of hydrogeological systems and could enable decision makers to evaluate, better manage, and protect a hydrogeological system using a single platform.

Holocene delta plain development in the Song Hong (Red River) delta, Vietnam

2007 ◽  
Vol 30 (3-4) ◽  
pp. 518-529 ◽  
Author(s):  
Ayako Funabiki ◽  
Shigeko Haruyama ◽  
Nguyen Van Quy ◽  
Pham Van Hai ◽  
Dinh Hung Thai
Keyword(s):  
River Delta ◽  
Red River ◽  
Red River Delta ◽  
Delta Plain

scholarly journals Groundwater salinity influenced by Holocene seawater trapped in incised valleys in the Red River delta plain

2017 ◽  
Vol 10 (5) ◽  
pp. 376-381 ◽  
Author(s):  
Flemming Larsen ◽  
Long Vu Tran ◽  
Hoan Van Hoang ◽  
Luu Thi Tran ◽  
Anders Vest Christiansen ◽  
...  
Keyword(s):  
River Delta ◽  
Red River ◽  
Groundwater Salinity ◽  
Red River Delta ◽  
Delta Plain ◽  
Incised Valleys

scholarly journals Assessing and Delineation of Groundwater Recharge Areas in Coastal Arid Area in Tunisia Using GIS, Remote Sensing Techniques and Self-organizing Map

2022 ◽  
Author(s):  
Bilel Abdelkarim ◽  
Faten Telahigue ◽  
Belgacem Agoubi
Keyword(s):  
Remote Sensing ◽  
Economic Development ◽  
Groundwater Recharge ◽  
Groundwater Potential ◽  
Study Region ◽  
Isotopic Analyses ◽  
Socio Economic Development ◽  
Potential Recharge ◽  
Remote Sensing Techniques ◽  
Self Organizing

Abstract In Gabès region (southeastern Tunisia), given the semi-arid to arid climate conditions, groundwater is an essential resource to supply the growth needs of the socio-economic development. To ensure sustainable development and preserve water resources, a careful estimation of the present day recharge amount and the delineation of the potential zones of rainfall precipitation are of required for an accurate evaluation of regional water balance. In this context, this study aims to a preliminary assessment of groundwater recharge in Gabes basin in regard to the delineation of the potential recharge areas of phreatic aquifers. Thus, a geological and hydrogeological collected database coupled with remote sensing techniques (RST) were used for the determination of the lateral variation of recharging zone ,Treatment by ArcGIS and Matlab softwares and Kohonen self-organizing maps (K-SOM) approaches.The obtained results indicate that five recharge potential areas have been identified and classified as 27% very low, 23% low, 40% moderate recharge, 7% good and 3 % very good potential recharge located principally on southern part of the study region .This distribution is controlled principally by the geomorphological, geologic, and hydrogeologic features of the region . Reasonable management strategies based on a perennial exploitation of these low renewable resources are required to optimize the water dependent socio-economic development. The estimated groundwater potential recharge of Gabès aquifer system using K-SOM and RST is of 11.4 Mm3.y-1. This recharging rate is very low it present 7% of the total rain, thus it must be ameliorated. K-SOM and RST approach is a useful method for groundwater potential recharge mapping and is a helpful of wells establishment and groundwater sustainable management.an isotopic analyses is recommended to ameliorate the decision maker to establish the adequate strategy.

Climate Change and Land Use Change of Rural Households in The Red River Delta, Vietnam

2013 ◽  
pp. 79-94
Author(s):  
Ngoc Luu Bich
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Agricultural Land ◽  
Rural Households ◽  
River Delta ◽  
Red River ◽  
Red River Delta ◽  
Sea Levels ◽  
Main Production ◽  
Farming Households

Climate change (CC) and its impacts on the socio-economy and the development of communities has become an issue causing very special concern. The rise in global temperatures, in sea levels, extreme weather phenomena, and salinization have occurred more and more and have directly influenced the livelihoods of rural households in the Red River Delta – one of the two regions projected to suffer strongly from climate change in Vietnam. For farming households in this region, the major and traditional livelihoods are based on main production materials as agricultural land, or aquacultural water surface Changes in the land use of rural households in the Red River Delta during recent times was influenced strongly by the Renovation policy in agriculture as well as the process of industrialization and modernization in the country. Climate change over the past 5 years (2005-2011) has started influencing household land use with the concrete manifestations being the reduction of the area cultivated and the changing of the purpose of land use.

Phosphate immobilisation dynamics and interaction with arsenic sorption at redox transition zones in floodplain aquifers: Insights from the Red River Delta, Vietnam

2021 ◽  
Vol 411 ◽  
pp. 125128
Author(s):  
Harald Neidhardt ◽  
Sebastian Rudischer ◽  
Elisabeth Eiche ◽  
Magnus Schneider ◽  
Emiliano Stopelli ◽  
...  
Keyword(s):  
River Delta ◽  
Red River ◽  
Red River Delta ◽  
Transition Zones ◽  
Redox Transition
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