scholarly journals Coupled effect of seawater intrusion on groundwater quality: study of South-West zone of Surat city

2021 ◽  
Author(s):  
Ankit N. Chaudhari ◽  
Darshan J. Mehta ◽  
Neeraj D. Sharma
Keyword(s):  
Groundwater Quality ◽  
Seawater Intrusion ◽  
Saltwater Intrusion ◽  
Three Dimensional ◽  
The South ◽  
Study Region ◽  
Weighted Arithmetic ◽  
South West ◽  
The Status ◽  
Freshwater Aquifers

Abstract Groundwater quality is a major problem for humanity since it is closely related to human health. The flow of seawater into freshwater aquifers is known as saltwater intrusion, and it can lead to groundwater quality contamination, including drinking water. Due to the extremely severe hydraulic interface between groundwater and seawater, saltwater intrusion can happen naturally in coastal aquifers. The aim of the study is to examine the status of seawater intrusion within the study region of the South-West zone of Surat city, Gujarat. The present study evaluates Groundwater Quality Index using a weighted arithmetic method including various chemical ions. The South-West zone of Surat city is located along the coast; seawater infiltration has a significant impact on the groundwater in the state. The conceptual model will be developed and analyzed using MODFLOW to analyze the effects of seawater intrusion analysis. The model domain is characterized by three hydro-stratographic layers and covers an area of approximately 110 km2 in a 400 m × 400 m grid size. An analytical study with MODFLOW would be carried out for three-dimensional groundwater flows with species of solute transport. This study would help profile the study area regarding Groundwater quality.

Homeric Qualities in the Life and Literature of the Great Blasket Island

1969 ◽  
Vol 16 (2) ◽  
pp. 151-168
Author(s):  
J. V. Luce
Keyword(s):  
West Coast ◽  
Book Reading ◽  
The South ◽  
Oral Culture ◽  
Reading And Writing ◽  
South West ◽  
The Status ◽  
South West Coast

In the ten years between 1929 and 1939 three remarkable books were produced in a tiny Irish-speaking community of less than one hundred and fifty people living on the Great Blasket, an island off the south-west coast of Kerry. The authors, two men and a woman, were peasants, eking out a scanty living by farming and fishing. They were technically literate in that they had acquired the rudiments of reading and writing at the island school, but for all practical purposes their culture was oral. They certainly had neither opportunity nor inclination for book-reading. Yet out of the resources of their oral culture they produced works of a high literary standard, one of which has (in translation) achieved the status of a ‘World's Classic’.

scholarly journals An assessment of groundwater quality in South-West zone of Surat city

2021 ◽  
Author(s):  
Ankit N. Chaudhari ◽  
Darshan J. Mehta ◽  
Dr. Neeraj D. Sharma
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Ground Water ◽  
Coastal Region ◽  
Total Dissolved Solids ◽  
Total Hardness ◽  
Ground Water Quality ◽  
The South ◽  
South West ◽  
The People

Abstract Groundwater quality alludes to the state of the water that is arranged under the Earth's surface. Groundwater can accumulate in breaks in subsurface rocks and the centre of soil particles. Since various blends can break down in water and others can be suspended in water, there is a potential for pollution with harmful mixes including significant particles like Electrical Conductivity (EC), Total Dissolved Solids (TDS), and many others i.e. Ca, Cl, F, Mg, NO3, SO4, and Total Hardness. This study examines Groundwater Quality in the study area of the South-West zone of Surat city, Gujarat. The South-West zone of Surat city is situated on the shoreline, causes the groundwater of the concerned area highly affected by seawater intrusion. The present study determines the Ground Water Quality Index (GWQI) from the year 2006 to 2015. It also predicts the approximate ground water quality for the next 10 years. The outcome of this study suggests the need of certain improvement in ground water quality by an appropriate method such as Managed Aquifer Recharging (MAR). It will be beneficial for the people mainly dependent on the ground water, particularly living near the coastal region.

scholarly journals Groundwater quality assessment for irrigation use in the Godavari delta region of east coast India using IRWQI and GIS

2021 ◽  
Author(s):  
K. Nageswara Rao ◽  
P. Swarna Latha ◽  
P.V. Ramesh Kumar
Keyword(s):  
Groundwater Quality ◽  
Saline Water ◽  
Anthropogenic Activities ◽  
Fresh Groundwater ◽  
Study Region ◽  
Distribution Maps ◽  
Groundwater Aquifers ◽  
The Status ◽  
Kelly’S Ratio ◽  
Physical And Chemical

Abstract The present work was carried out in the deltaic region of the river Godavari in Coastal Andhra Pradesh of Southern India to evaluate the status of groundwater quality for irrigation. Groundwater is predominantly used in these productive agricultural fields. Saline water intrusion in fresh groundwater aquifers was recorded in the study area which is mainly due to the excess withdrawal of groundwater. A total of 80 groundwater samples were analyzed for various physical and chemical parameters using standard chemical procedures. The groundwater mainly represents sodium-chloride type which exhibits the mixing of fresh water with the saline water. The high correlation between Na+-Cl− and Mg2+-HCO3− explained that the intermixing of aquifer waters and the leaching of secondary salts. The mechanisms of groundwater have been shown mainly evaporation-fractional crystallization process. The irrigation water quality index was calculated by using different quality indices such as Na%, SAR, RSBC, PI, MH, KR, PS, Cl−:HCO3−, Mg2+:Ca2+, and Na+:Ca2+ to estimate the suitability of groundwater quality for irrigation. Spatial distribution maps were prepared using raster interpolation in GIS. The assessment revealed that the areas covering 67.6% of electrical conductivity, 100% of total dissolved solids, 57.5% of percent sodium, 21.3% of residual sodium bicarbonate, 66.3% of permeable index, 16.3% of magnesium hazard, 65% of Kelly's ratio, 100% of potential salinity were required severe to moderate restrictions. Overall, the groundwater in the study region showed potential salinity due to geogenic and anthropogenic activities thus it must be monitored for sustainable agriculture.

scholarly journals http://habibiaislamicus.com/index.php/hirj/article/view/220

2021 ◽  
Vol 5 (3) ◽  
pp. 57-68
Author(s):  
Sami ur Rahman ◽  
Keyword(s):  
Research Paper ◽  
The State ◽  
The South ◽  
Khyber Pakhtunkhwa ◽  
The Past ◽  
South West ◽  
The Status ◽  
Princely State

The word Dir is derived from Sanskrit language, which means a place of worship or a monastery. The Greek would call Dir as "Goraaye". At some point in the past the word "yaghestᾱn" was used as the name for Dir, Bajaur and Gilgit areas. Dir is comprised of beautiful valleys in the high peaked Hamalyas mountains in the province of Khyber pakhtunkhwa. It was a princely state. It is bounded by Chitral to the northe west, swat to the east, Malakand to the south, Bajaur and Afghanistan to its south west. At the time of independence of Pakistan, the state of Dir was ruled by Nawab shah jehan. Dir was acceded to Pakistan in 1969. It was given the status of district in 1970 and in 1996 it was devided into two districts ,i.e lower and upper Dir. Dir has produced many renowned personalities in the politcs as well as in the religious field. This article belonges to the religious scholars ('ulamᾱ) of District Dir and their remarkable contributions in the field of Fiqa, specially in the Urdu language. Some of these scholars are; Maulana Abdul Ghani, Qazi wali Ur Rahman,Qazi Adusalam, Maulana Hzrat Said, Dr Izaz Ali, Shaikh Abdul haleem,Qazi Hazrat Mahmood,Mulana Abdullah and Mulana Zia Ul Haq. In this research paper introduction of the Ulamᾱ-e-Dir and their services of Fiqa in Urdu language have been mentioned which will help inculcate the readers their outlook and will be an advantageous adition to the research endeavors.

scholarly journals Lathyrus aphaca L.: the distribution, habitats and remarks on the status of the species in Poland

2011 ◽  
Vol 80 (3) ◽  
pp. 237-244
Author(s):  
Agnieszka Nobis ◽  
Marcin Nobis ◽  
Alina Urbisz
Keyword(s):  
Historical Data ◽  
Current Status ◽  
The South ◽  
The Czech Republic ◽  
North West ◽  
The North ◽  
South West ◽  
Arable Fields ◽  
The Status ◽  
Lathyrus Aphaca

<em>Lathyrus aphaca</em>, which is in Poland considered to be an ephemerophyte recorded mainly in the north-west and the south-west, has lately been observed in arable fields in the south of the country. Recent and historical data on the distribution of the taxon in Poland are presented. Original relevés conducted in arable fields in Poland are analysed and compared to those from the Czech Republic, Germany and Slovenia. The current status of <em>L. aphaca </em>in the Polish flora is discussed.

scholarly journals Critical stress scenarios for a coastal aquifer in southeastern Italy

2011 ◽  
Vol 11 (5) ◽  
pp. 1381-1393 ◽  
Author(s):  
C. Cherubini ◽  
N. Pastore
Keyword(s):  
Groundwater Quality ◽  
Seawater Intrusion ◽  
Critical Stress ◽  
Saltwater Intrusion ◽  
Management Strategies ◽  
Hydrologic Model ◽  
Shallow Aquifer ◽  
Deep Aquifer ◽  
Future Developments

Abstract. Over the last years the sustainable management of coastal water resources has become strategic, especially in southern Salento Peninsula (Apulia), where mal-performing management strategies adopted, together with the vulnerability of the hydrogeological system, have given rise to the deterioration of groundwater quality due to saltwater intrusion. In the study area there is the presence of multilevel shallow aquifer and a deep aquifer that interact by means of faults. The geological system is highly vulnerable to seawater intrusion so there is the need to adopt management strategies to avoid seawater intrusion phenomena. Nevertheless there is a lack of studies that analyze the methodology for the correct exploitation if the water resource in order to avoid further intrusion phenomena. This paper combines a density-driven, flow numerical model (Seawat v.4) with a fault conceptual and hydrologic model to simulate saltwater intrusion phenomenon in the deep as well as in the shallow aquifer of the Salento area. By means of the individuation of an indicator parameter of groundwater quality, it has been possible to simulate different scenarios of exploitation and therefore to define critical stress scenarios for both aquifers. The results show that the deep aquifer is more vulnerable than the shallow one, which means that in the former, in order not to reach conditions of contamination, a lower density of wells is necessary than in the latter. The reduction of well density coupled with the artificial recharge of freshwater into the aquifer may be proposed as a solution strategy to protect the aquifer. Therefore, future developments of the present study will be represented by the simulation of different scenarios of recharging to inhibit the saltwater intrusion front further inland. The proposed methodology and its future developments can represent an empirical tool to provide preliminary guidelines for long-term groundwater management in coastal aquifers.

On the status of the species of Acanthistius (Gill, 1862) (Percoidei) in the South-West Atlantic Ocean

Zootaxa ◽  
2008 ◽  
Vol 1813 (1) ◽  
pp. 51 ◽  
Author(s):  
ALEJO J. IRIGOYEN ◽  
LEOPOLDO CAVALERI GERHARDINGER ◽  
ALFREDO CARVALHO-FILHO
Keyword(s):  
Taxonomic Status ◽  
Morphological Characters ◽  
Museum Specimens ◽  
The South ◽  
Separate Species ◽  
Western Atlantic ◽  
South West ◽  
The Status ◽  
Diagnostic Key ◽  
Management And Conservation

We review the species of Acanthistius Gill (1862) (Osteichthyes, Percoidei) from the South-Western Atlantic, solving a discrepancy concerning the taxonomic status of Acanthistius brasilianus (Cuvier & Valenciennes 1828) and Acanthistius patachonicus (Jenyns 1842), and providing an objective diagnostic key for the two species. While Argentinean fishery biologists consider A. patachonicus to be a synonym of A. brasilianus, ichthyologists elsewhere regard them as separate species with different distributional ranges. Based on a literature review, examination of museum specimens and observation of live individuals in the field, we identified the sources of the dissent and concluded that A. brasilianus and A. patachonicus are separate species, differing in diagnostic morphological characters and distinctive color patterns and having slightly overlapping distributional ranges. Distinction between these two species has significant implications for management and conservation.

scholarly journals Current distribution and status of the Eurasian otter Lutra lutra in South Korea

Oryx ◽  
2018 ◽  
Vol 54 (5) ◽  
pp. 743-746
Author(s):  
Yeong-Seok Jo ◽  
Oh-Sun Lee ◽  
Tae-Jin Park ◽  
Han-Na Kim ◽  
John T. Baccus
Keyword(s):  
South Korea ◽  
Urban Areas ◽  
Source Area ◽  
Lutra Lutra ◽  
The South ◽  
Eurasian Otter ◽  
Asian Populations ◽  
South West ◽  
The Status ◽  
Natural Monument

AbstractThe status of Asian populations of the Eurasian otter Lutra lutra is largely unknown. Since its designation as a Natural Monument (in 1983) and as Endangered (in 1997) in South Korea the authorities there have been trying to conserve and recover the species. We conducted a national otter survey by standard methods in 2017 and compared the current otter distribution to those recorded in a previous survey (2010). We found otter signs in 84.5% of 1,105 10 × 10 km grid cells, with the highest sprainting intensity in the south-west in the Yeongsan River Basin and on the south coast, where we recorded 7.05 and 6.26 spraints/site, respectively. Despite relatively low spraint densities, the otter has expanded its range since 2010 by colonizing urban areas. This trend suggests that South Korea could be a source area for the recovery of the Eurasian otter in East Asia.

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