| Home | << 1 2 3 4 >> |
|
| Records | |||||
|---|---|---|---|---|---|
| Author | Sebben, M.L.; Werner, A.D.; Graf, T. | ||||
| Title | Seawater intrusion in fractured coastal aquifers: A preliminary numerical investigation using a fractured Henry problem | Type | Journal Article | ||
| Year | 2015 | Publication | Advances in Water Resources | Abbreviated Journal | |
| Volume | 85 | Issue | Pages | 93-108 | |
| Keywords | |||||
| Abstract | Despite that fractured coastal aquifers are widespread, the influence of fracture characteristics on seawater intrusion (SWI) has not been explored in previous studies. This research uses numerical modelling in a first step towards understanding the influence of fracture orientation, location and density on the extent of seawater and accompanying patterns of groundwater discharge in an idealised coastal aquifer. Specifically, aquifers containing single fractures or networks of regularly spaced fractures are studied using modified forms of the Henry SWI benchmark problem. The applicability of equivalent porous media (EPM) models for representing simple fracture networks in steady-state simulations of SWI is tested. The results indicate that the influence of fractures on SWI is likely to be mixed, ranging from enhancement to reduction in seawater extent and the width of the mixing zone. For the conceptual models considered here, vertical fractures in contact with the seawater wedge increase the width of the mixing zone, whereas vertical fractures inland of the wedge have minimal impact on the seawater distribution. Horizontal fractures in the lower part of the aquifer force the wedge seaward, whereas horizontal fractures located within the zone of freshwater discharge enhance the wedge. Inclined fractures roughly parallel to the seawater-freshwater interface increase the landward extent of seawater and fractures perpendicular to the interface inhibit the wedge. The results show that EPM models are likely inadequate for inferring salinity distributions in most of the fractured cases, although the EPM approach may be suitable for orthogonal fracture networks if fracture density is high and appropriate dispersivity values can be determined. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0309-1708 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
Call Number  |
THL @ christoph.kuells @ Sebben2015 | Serial | 37 | ||
| Permanent link to this record | |||||
| Author | Alexakis, D.; Gotsis, D.; Giakoumakis, S. | ||||
| Title | Evaluation of soil salinization in a Mediterranean site (Agoulinitsa district—West Greece) | Type | Journal Article | ||
| Year | 2015 | Publication | Arabian Journal of Geosciences | Abbreviated Journal | |
| Volume | 8 | Issue | 3 | Pages | 1373-1383 |
| Keywords | Agricultural soil . Soil quality . Soil salinization | ||||
| Abstract | Soil salinization is an environmental problem having significant impacts on the soil–water–plant system. This problem is more frequent in coastal areas due to seawater intrusion into the land. Assessing the soil salinization is a critical issue for the agricultural areas situated in the Mediterranean basin. This paper examines the deterioration of soil quality in the cultivated land of a Mediterranean site (Agoulinitsa district—West Greece). Soil samples were collected in both pre-irrigation and post-irrigation seasons. Electrical conductivity (EC), pH and the ions Br−, Ca2+, Cl−, F−, K+, Li+, Mg2+, Na+, NH4 +, NO2 −, NO3 −, PO4 3− and SO4 2− were determined by the 1:2 (soil/water ratio on weight basis) method. The salts which were present in both seasons in the soils of the area studied are KCl, MgCl2, NaCl, CaSO4 and K2SO4. The wide spatiotemporal variation of EC in the cultivated land in both seasons demonstrates that soil salinity is controlled mainly by seawater intrusion and anthropogenic factors such as the application of salt-rich water which is directly pumped from the drainage ditches. Seawater intrusion provides the affected soil with elevated contents of Ca2+, Cl−, K+, Mg2+, Na+ and SO4 2−. Classification of the soils by using criteria given by the literature is discussed. Practices to prevent, or at least ameliorate, salinization in the cultivated land of Agoulinitsa district are proposed. |
||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Springer | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1866-7511 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number |
THL @ luqianxue.zhang @ Alexakis2015 | Serial | 42 | ||
| Permanent link to this record | |||||
| Author | Bouzourra, H.; Bouhlila, R.; Elango, L.; Slama, F.; Ouslati, N. | ||||
| Title | Characterization of mechanisms and processes of groundwater salinization in irrigated coastal area using statistics, GIS, and hydrogeochemical investigations | Type | Journal Article | ||
| Year | 2015 | Publication | Environmental Science and Pollution Research | Abbreviated Journal | |
| Volume | 22 | Issue | 4 | Pages | 2643-2660 |
| Keywords | |||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Springer | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number |
THL @ luqianxue.zhang @ bouzourra2015characterization | Serial | 78 | ||
| Permanent link to this record | |||||
| Author | Edwards, P.J.; Williard, K.W.J.; Schoonover, J.E. | ||||
| Title | Fundamentals of watershed hydrology | Type | Journal Article | ||
| Year | 2015 | Publication | Journal of contemporary water research & education | Abbreviated Journal | |
| Volume | 154 | Issue | 1 | Pages | 3-20 |
| Keywords | |||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Wiley Online Library | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number |
THL @ luqianxue.zhang @ edwards2015fundamentals | Serial | 101 | ||
| Permanent link to this record | |||||
| Author | El-Sayed, S.A.; Ramadan, A.B.; Salama, M.H.; Diab, M. | ||||
| Title | Geochemical and Radiological Characteristics of Harvested Rainwater and Surficial Soil in El-Alamein-Alam El-Rum Area, Western Mediterranean Coastal Zone, Egypt | Type | Journal Article | ||
| Year | 2015 | Publication | Isotope and Radiation Research | Abbreviated Journal | |
| Volume | 47 | Issue | 2 | Pages | 177-198 |
| Keywords | |||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number |
THL @ luqianxue.zhang @ El-Sayed2015 | Serial | 57 | ||
| Permanent link to this record | |||||