نتایج جستجو برای: groundwater potential

تعداد نتایج: 1091976  

2008
Jennifer E. Pyzoha Timothy J. Callahan Ge Sun Carl C. Trettin Masato Miwa

This paper describes how climate influences the hydrology of an ephemeral depressional wetland. Surface water and groundwater elevation data were collected for 7 years in a Coastal Plain watershed in South Carolina USA containing depressional wetlands, known as Carolina bays. Rainfall and temperature data were compared with water-table well and piezometer data in and around one wetland. Using t...

2008
Sunderrajan Krishnan Adlul Islam Deepesh Machiwal D. R. Sena Karen Villholth

The low density of current groundwater instrumentation networks in developing countries, that are both cost and management intensive, is an impediment to informed management of groundwater. Counter to this, local knowledge of groundwater which is often perceptive has greater spatial coverage and can be obtained at a relatively lower cost. One efficient way to tap such local groundwater knowledg...

2006
N. Cao Don H. Araki N. T. Minh Hang H. Yamanishi K. Koga

This paper presents the development and application of a conjunctive water management model for lowland catchments. The model incorporates a simulation model and a management model to simulate groundwater movement, ground consolidation and to search for the potential pumping amount of groundwater without violating physical and environmental constraints. The results reveal that groundwater level...

Journal: :Earth Science Informatics 2015
Seyed Amir Naghibi Hamid Reza Pourghasemi Zohre Sadat Pourtaghi Ashkan Rezaei

The purpose of current study is to produce groundwater qanat potential map using frequency ratio (FR) and Shannon's entropy (SE) models in the Moghan watershed, Khorasan Razavi Province, Iran. The qanat is basically a horizontal, interconnected series of underground tunnels that accumulate and deliver groundwater from a mountainous source district, along a waterbearing formation (aquifer), and ...

2015
Yadu N. Pokhrel Sujan Koirala Pat J.-F. Yeh Naota Hanasaki Laurent Longuevergne Shinjiro Kanae Taikan Oki

Observations indicate that groundwater levels are declining in many regions around the world. Simulating such depletion of groundwater at the global scale still remains a challenge because most global Land Surface Models (LSMs) lack the physical representation of groundwater dynamics in general and well pumping in particular. Here we present an integrated hydrologic model, which explicitly simu...

Girish Gopinath Kurian Sajan Rajesh Regunath Reji Srinivas Sreela Reghu

Groundwater, being a vital resource, needs to be developed with proper understanding about its occurrence in time and space. Unscientific sand mining is a dominant environmental issue in this humid tropical river basin namely Bharathapuzha river basin geographically on central part of Kerala state, southwest part of India. The sandy layers along the river course declines its water holding capac...

2008
Yongsung Joo Babette Brumback Keunbaik Lee Seong-Taek Yun Kyoung-Ho Kim

The hydrogeological conditions of groundwater can be examined by carefully studying the patterns of fluctuations in groundwater levels. These fluctuations are spatially and temporally influenced by many complicated factors, including rainfall, topography, land use, and hydraulic properties of soils and bedrock (i.e., aquifers). In this paper, we develop methodology based on a Bayesian logistic ...

Journal: :The Science of the total environment 2013
Ruopu Li James W Merchant

Modeling groundwater vulnerability to pollution is critical for implementing programs to protect groundwater quality. Most groundwater vulnerability modeling has been based on current hydrogeology and land use conditions. However, groundwater vulnerability is strongly dependent on factors such as depth-to-water, recharge and land use conditions that may change in response to future changes in c...

Journal: :IOP Conference Series: Earth and Environmental Science 2020

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