نتایج جستجو برای: groundwater fluctuation

تعداد نتایج: 54428  

2010
JC. Maréchal

Short-interval water level measurements using automatic water level recorder in a deep well in an unconfined crystalline rock aquifer at the campus of NGRI, near Hyderabad shows a cyclic fluctuation in the water levels. The observed values clearly show the principal trend due to rainfall recharge. Spectral analysis was carried out to evaluate correlation of the cyclic fluctuation to the synthet...

Journal: :مدیریت آب و آبیاری 0
فاطمه جعفری کارشناس پژوهشی پژوهشکدة منابع آب، مؤسسة تحقیقات آب، تهران – ایران مرتضی افتخاری استادیار پژوهشکدة منابع آب، مؤسسة تحقیقات آب، تهران – ایران

in the last decade, the water level of urmia lake has experienced a dramatically drop. although the causes of this lose have been investigated, the significance of groundwater supplies had not been concerned so much. in the present research, groundwater resources around the lake were explored as its water supplier. the number of wells and groundwater withdrawal has been increased because of cul...

Journal: :Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 2014

Journal: Desert 2020
A. Abolhasani Gh.R. Zehtabian, H. Khosravi, M. Jafary Sh. Javadi

Compared to surface water, groundwater resources are the primary source of water supply in arid and semi-arid regions of Iran, hence the importance of the management of these resources .  In this regard, we assessed the effects of landuse changes on the qualitative and quantitative status of groundwater resources in Eshtehard region, Iran. Through processing and analyzing the satellite images, ...

Journal: :Revista Brasileira de Recursos Hídricos 2023

ABSTRACT For sustainable groundwater management the rate of recharge and specific yield are both most important elements in analysis resources, and, sometimes, estimation these parameters remains a challenge. This research presents combining approach water-table fluctuation method (WTF) with an aquifer test to estimate quantify their uncertainty. The methodology requires at least three wells: t...

2015
Xihua Wang Guangxin Zhang Yi Jun Xu Xiangjun Shan

The depth and fluctuation of shallow groundwater influence water supply to land surface vegetation. Knowledge of an ecologically ideal depth range of shallow groundwater for a vegetation ecosystem can be crucial for sustainability of regional water resource management and ecological conservation. In this study, we developed a conceptual model that identifies an upper and a lower boundary of sha...

2016
Sayed Waliullah Aqili Nian Hong Takehide Hama Yuichi Suenaga Yasunori Kawagoshi

Groundwater management is a significant task to have sustainable groundwater sources in Afghanistan especially in Kabul Basin. In this study, the groundwater level fluctuation simulation and forecast by a traditional tank model, snow tank + traditional tank model (S + traditional tank), combined tank model and snow combined tank model (SC-tank model) were compared. The variables (precipitation,...

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