Sensitivity of a Groundwater Flow Model to Both Climatic Variations and Management Scenarios in a Semi-arid Region of SE Spain

2013 ◽  
Vol 27 (7) ◽  
pp. 2089-2101 ◽  
Author(s):  
Santiago Castaño ◽  
David Sanz ◽  
Juan José Gómez-Alday
Keyword(s):  
Groundwater Flow ◽  
Arid Region ◽  
Flow Model ◽  
Groundwater Flow Model ◽  
Management Scenarios ◽  
Se Spain ◽  
Climatic Variations ◽  
Semi Arid Region ◽  
Semi Arid

Development, verification and validation of a three-dimensional groundwater flow model for ESM

2020 ◽  
Author(s):  
Yosuke Miura ◽  
Kei Yoshimura
Keyword(s):  
Surface Water ◽  
Groundwater Flow ◽  
Arid Region ◽  
Flow Model ◽  
Three Dimensional ◽  
Central Valley ◽  
Groundwater Flow Model ◽  
The World ◽  
Semi Arid Region ◽  
Semi Arid

<p>  Groundwater is one of the important water resources in the world and Groundwater flow is linked with surface water strongly. Many studies on groundwater are conducted in a local scale or focused on affect-ing surface water in a global scale. In current Earth System Model, fixed and constant one-dimensional vertical grid is used in unsaturated zone. In real world, the thickness of unsatu-rated zone depends on the climate and it is considered that there are limitations of runoff process expression especially in humid mountainous area. In this study, we developed three-dimensional groundwater flow model as ESM which can represent the variably saturated flow and groundwa-ter storativity. Since, this model is eventually coupled with Land Surface Model, it is possible to track the underground water flow using boundary conditions of recharge and surface water level.</p><p>  We verified accuracy of the code using one & two-dimensional infiltration problem, three-dimensional groundwater pumping problem, and hillslope problem. Our model was com-pared with other researchers results, experimental data, analytical solutions. In consequence, our model was able to get accurate results. Subsequently, we conducted validation in Central valley, California, USA. The reason of chose this region is that this region is a semi-arid region, ground-water is used for irrigation and well pumping data is accessible. Over the world, groundwater use is more important in arid or semi-arid region than in humid area, and also highly utilized as agri-cultural water. Central valley has representativeness of groundwater use. In addition, the famous groundwater model, MODFLOW, was used to evaluate water resource management in this region. As well as MODFLOW, we calibrated hydraulic conductivity with 24 observation sites during 1961 - 2003 to validate. 156 observation points excluded 24 calibration points were used as vali-dation in same period. In the near future, we will confirm the difference between one-dimension and three dimensions setting of the unsaturated zone with respect to runoff process.</p>

Implementation of a 3-D groundwater flow model in a semi-arid region using MODFLOW and GIS tools: The Zéramdine–Béni Hassen Miocene aquifer system (east-central Tunisia)

2012 ◽  
Vol 48 ◽  
pp. 187-198 ◽  
Author(s):  
Fethi Lachaal ◽  
Ammar Mlayah ◽  
Mourad Bédir ◽  
Jamila Tarhouni ◽  
Christian Leduc
Keyword(s):  
Groundwater Flow ◽  
Arid Region ◽  
Flow Model ◽  
Groundwater Flow Model ◽  
East Central ◽  
Aquifer System ◽  
Central Tunisia ◽  
Gis Tools ◽  
Semi Arid Region ◽  
Semi Arid

scholarly journals Global comparison of 20 reference evapotranspiration equations in a semi-arid region of Iran

2018 ◽  
Vol 50 (1) ◽  
pp. 282-300 ◽  
Author(s):  
Hadi Farzanpour ◽  
Jalal Shiri ◽  
Ali Ashraf Sadraddini ◽  
Slavisa Trajkovic
Keyword(s):  
Arid Region ◽  
Reference Evapotranspiration ◽  
Meteorological Data ◽  
Irrigation Scheduling ◽  
Climatic Conditions ◽  
Accurate Estimation ◽  
Management Scenarios ◽  
Global Comparison ◽  
Semi Arid Region ◽  
Semi Arid

Abstract Accurate estimation of reference evapotranspiration (ETo) is a major task in hydrology, water resources management, irrigation scheduling and determining crop water requirement. There are many empirical equations suggested by numerous references in literature for calculating ETo using meteorological data. Some such equations have been developed for specific climatic conditions while some have been applied universally. The potential for usage of these equations depends on the availability of necessary meteorological parameters for calculating ETo in different climate conditions. The focus of the present study was a global cross-comparison of 20 ETo estimation equations using daily meteorological records of 10 weather stations (covering a period of 12 years) in a semi-arid region of Iran. Two data management scenarios, namely local and cross-station scenarios, were adopted for calibrating the applied equations against the standard FAO56-PM model. The obtained results revealed that the cross-station calibration might be a good alternative for local calibration of the ETo models when proper similar stations are used for feeding the calibration matrix.

Preliminary results of a 3-D groundwater flow model in an arid region of NE Algeria using PMWin: the Inféro-flux phreatic aquifer (Biskra)

2016 ◽  
Vol 41 ◽  
pp. 18-21 ◽  
Author(s):  
Claudio Arras ◽  
Mohamedou Baba Sy ◽  
Cristina Buttau ◽  
Alberto Carletti ◽  
Gabriela Afrasinei ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
Arid Region ◽  
Flow Model ◽  
Groundwater Flow Model ◽  
Preliminary Results ◽  
Phreatic Aquifer

Stormwater and groundwater management in a semi-arid region (Campo de Dalias, SE Spain)

2020 ◽  
pp. 135-149
Author(s):  
A. Pulido-Bosch ◽  
W. Martín-Rosales ◽  
P. Pulido-Leboeuf ◽  
A. Vallejos
Keyword(s):  
Groundwater Management ◽  
Arid Region ◽  
Se Spain ◽  
Semi Arid Region ◽  
Semi Arid

Groundwater flow model, recharge estimation and sustainability in an arid region of Patagonia, Argentina

2011 ◽  
Vol 66 (7) ◽  
pp. 2097-2108 ◽  
Author(s):  
María del Pilar Alvarez ◽  
María Marta Trovatto ◽  
Mario Alberto Hernández ◽  
Nilda González
Keyword(s):  
Groundwater Flow ◽  
Arid Region ◽  
Flow Model ◽  
Groundwater Flow Model ◽  
Recharge Estimation

Aerosol iron solubility in a semi-arid region: temporal trend and impact of anthropogenic sources

Tellus B ◽  
2010 ◽  
Vol 62 (2) ◽  
Author(s):  
Ashwini Kumar ◽  
M. M. Sarin
Keyword(s):  
Arid Region ◽  
Temporal Trend ◽  
Anthropogenic Sources ◽  
Iron Solubility ◽  
Semi Arid Region ◽  
Semi Arid

The Molecular Characterization and Biological Assessment of the Leaves Extracts of Loofah Reveal their Nutraceutical Potential

2020 ◽  
Vol 11 ◽  
Author(s):  
Takoua Ben Hlel ◽  
Feten Belhadj ◽  
Fatih Gül ◽  
Muhammed Altun ◽  
Ayşe Şahin Yağlıoğlu ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Phenolic Compounds ◽  
Hela Cell ◽  
Arid Region ◽  
Biological Properties ◽  
Biological Assessment ◽  
Omega 3 ◽  
Hela Cell Lines ◽  
Semi Arid Region ◽  
Semi Arid

Background:: Luffa cylindrica is a plant that is widely distributed in Africa and Asia and it can be grown in regions with tropical or subtropical climates. Few patents dealt with Loofah biological properties, including some functional foods formulated from its leaves. Objective:: This study aimed to structurally and functionally characterize the bioactive compounds of L. cylindrica leaves grown in two different environments. Methods:: The extracts of L. cylindrica leaves collected from two Tunisian locations: Essouasi (LE), a semi-arid region and Medenine (LM) an arid region, were investigated for their phenolic compounds and fatty acids using HPLC/TOF-MS and GCMS techniques respectively. Furthermore, the antioxidant capacity was evaluated with DPPH, Chelating effect, Hydroxyl radical and Superoxide anion scavenging activities while the anticancer activity against HeLa cell lines was assessed using xCELLigence real time cell analyzer and lactate dehydrogenase cytotoxicity assay. Results:: The antiproliferative capacity of both extracts was time and dose-dependent with LE presenting the lowest HeLa cell index (CI = 0.035 ± 0.018, 250 μg/ml). LE also showed the best cytotoxic capacity (56.49 ± 0.8%) and antioxidant potential (IC50 = 54.41 ± 1.12 μg/ml for DPPH and 12.12 ± 0.07 μg/ml for chelating effet). 14 phenolic compounds were detected in LE with ferulic acid being the major compound (5128.5 ± 4.09 μg Phenols/g) while LM had only 6 phenolics. GCMS analysis showed the presence of omega-3 fatty acids in LE. Conclusions:: Our findings suggest that L. cylindrica leaves, especially when collected from semi-arid regions, are promising for formulating nutraceuticals of interest.

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