Spatial analysis of water quality and income in Europe

The objective of the present work is a spatial analysis aimed at supporting hydrological and water quality model applications in the Canale d’Aiedda basin (Puglia, Italy), a data-limited area. The basin is part of the sensitive environmental area of Taranto that requires remediation of the soil, subsoil, surface water, and groundwater. A monitoring plan was defined to record the streamflow and water quality parameters needed for calibrating and validating models, and a database archived in a GIS environment was built, which includes climatic data, soil hydraulic parameters, groundwater data, surface water quality parameters, point-source parameters, and information on agricultural practices. Based on a one-year monitoring of activities, the average annual loads of N-NO3 and P-PO4 delivered to the Mar Piccolo amounted to about 42 t year−1, and 2 t year−1, respectively. Knowledge uncertainty in monthly load estimation was found to be up to 25% for N-NO3 and 40% for P-PO4. The contributions of point sources in terms of N-NO3 and P-PO4 were estimated at 45% and 77%, respectively. This study defines a procedure for supporting modelling activities at the basin scale for data-limited regions.

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The Conservational State of Coastal Ecosystems on the Mexican Caribbean Coast: Environmental Guidelines for Their Management

Sustainability ◽

10.3390/su13052738 ◽

2021 ◽

Vol 13 (5) ◽

pp. 2738

Author(s):

Mayrene Guimarais ◽

Adán Zúñiga-Ríos ◽

Cesia J. Cruz-Ramírez ◽

Valeria Chávez ◽

Itxaso Odériz ◽

...

Keyword(s):

Water Quality ◽

Spatial Analysis ◽

Environmental Degradation ◽

High Intensity ◽

Regional Scale ◽

Coastal Ecosystems ◽

Caribbean Coast ◽

Seagrass Meadows ◽

The North ◽

Mexican Caribbean

The accelerated rate of environmental degradation of the Mexican Caribbean coast is alarming. In this work, spatial analysis procedures were applied to study relationships among wave and wind climates, water quality, and environmental degradation of the principal coastal ecosystems. We found an increasing North-South gradient in the preservation state of the coastal ecosystems, related to the degree of anthropization of the coastline. In the north, all analysed stressors exert high pressure on coral reefs, seagrass meadows, mangroves, and dunes, and cause chronic coastline erosion. The coastal ecosystems of the central and southern regions are more mature and healthier, and the most significant stressor is reduced water quality. The north has been most hit by high-intensity hurricanes, the frequency of which has increased in the Mexican Caribbean over recent decades. The status of conservation of the ecosystems, added to the long-term intensification of environmental pressures, particularly high-intensity hurricanes, will induce further deterioration if a coordinated management scheme is not adopted by decision-makers. To ensure effective coordinated management, plans should be made on a regional scale using shared guidelines. Spatial analysis procedures aid in prioritizing and adapting the shared guidelines depending on the identified major stressors and the preservation state of each region in the Mexican Caribbean.

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Temporal and Spatial Analysis of Water Quality Data Observed in Lower Watershed of Nam River Dam

Korean Society of Hazard Mitigation ◽

10.9798/kosham.2013.13.6.429 ◽

2013 ◽

Vol 13 (6) ◽

pp. 429-437 ◽

Cited By ~ 5

Author(s):

Gyeong-Hoon Kim ◽

Kang-Young Jung ◽

Jong-Su Yoon ◽

Se-Uk Cheon

Keyword(s):

Water Quality ◽

Spatial Analysis ◽

Quality Data ◽

Water Quality Data ◽

Temporal And Spatial

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Evaluation of Water Quality Parameters in Shatt AL-Arab, Southern Iraq, Using Spatial Analysis

Hydrology ◽

10.3390/hydrology7040079 ◽

2020 ◽

Vol 7 (4) ◽

pp. 79 ◽

Cited By ~ 1

Author(s):

Zahraa Q. Lateef ◽

Abdul-Sahib T. Al-Madhhachi ◽

Dawood E. Sachit

Keyword(s):

Water Quality ◽

Spatial Analysis ◽

Arabian Gulf ◽

Total Dissolved Solids ◽

Quality Parameters ◽

Data Availability ◽

Water Quality Parameters ◽

Total Hardness ◽

Dissolved Solids ◽

Southern Iraq

The present work illustrates the potential application of techniques of spatial analysis via geographic information systems (GIS) to categorize the distribution of temporal and spatial of water prediction characteristics to determine the water quality parameters of the Shatt Al-Arab River (SAA), southern Iraq. Eight main water quality parameters and three heavy metals were measured from December 2018 to October 2019. The total dissolved solids, chloride, sulfate, and total hardness were compared with previous data that were measured from 2014 to 2018 based on data availability. The geochemical characteristics were also investigated to analyze water quality parameters. The study was performed by selecting eleven stations according to the nature areas of SAA. Water samples were acquired from the eleven stations for four seasons (winter of 2018 through autumn of 2019). Results revealed that total dissolved solids ranged between 950 to 8500 mg/L, total hardness varied from 400 to 2394 mg/L as calcium carbonate (CaCO3), the sulfate ranged from 149 to 1602 mg/L, and chloride ranged from 330 to 3687 mg/L. The results showed that SAA had high salinity with a low hazard of sodicity. The SAA waters mainly fall below the Dolomite-Magnesite tie-lines which indicated the dissolution of carbonate rocks. This research also found that the study area confined from Al-Maqal station to Abu Flus port station where the salty marine water coming from the Arabian Gulf remains for longer periods. The SAA is not suitable for drinking and irrigation water according to Iraqi and World Health Organization (WHO) standards. This study suggested building a blocking dam downstream of the SAA to prevent salty water from coming back from Arabian Gulf.

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A GIS methodology to support sea water quality assessment in coastal areas

Global NEST Journal ◽

10.30955/gnj.002385 ◽

2018 ◽

Vol 20 (1) ◽

pp. 122-127 ◽

Cited By ~ 3

Keyword(s):

Water Quality ◽

Statistical Analysis ◽

Spatial Analysis ◽

Sea Water ◽

Rapid Development ◽

Coastal Areas ◽

Geographical Information ◽

Multivariate Techniques ◽

Analysis Methods ◽

Wide Range

The development of methodologies for assessing water quality in coastal areas including mapping of eutrophication levels is a research area of high interest. A wide range of methodological approaches can be found in the literature, including multivariate techniques, since marine eutrophication is a multi-parametric phenomenon. In this context, statistical analysis and in particular Principal Component Analysis (PCA) have been widely applied. However, no attempt has been presented so far for mapping eutrophication levels based on information acquired from PCA results in integration with spatial analysis methods. The rapid development of Geographical Information Systems provides the appropriate framework for the development and application of methodologies integrating statistical analysis, spatial analysis methods and mapping techniques. This paper proposes such a methodological approach for assessing sea water quality in coastal areas. The methodology is clearly described and the Strait of Mytilene at the east of the Island of Lesvos in the NE Aegean Sea, Greece is used as a case study.

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Evaluasi lanskap koridor Sungai Sekadau di Desa Mungguk, Sekadau, Kalimantan Barat

Jurnal Arsitektur Lansekap ◽

10.24843/jal.2021.v07.i01.p15 ◽

2021 ◽

pp. 144

Author(s):

Crismania Apriati Selly ◽

Rizki Alfian ◽

Debora Budiyono

Keyword(s):

Water Quality ◽

Spatial Analysis ◽

Urban Growth ◽

Natural Water ◽

Swot Analysis ◽

River Flow ◽

Community Based ◽

The Government ◽

The City ◽

River Corridor

A river is a natural water flow that flows from upstream to downstream. Sekadau River is located in the middle of Sekadau city to be precise in Mungguk Village, the center of urban growth. The existence of a river flow that crossed the city made many changes occurring in the Sekadau River corridor, this was due to the large number of settlements in the riverbank area which resulted in a decrease in river water quality. The purposes of this study were to analyze landscape conditions, prepare recommendations based on SWOT analysis and spatial analysis. The method used in this research was descriptive qualitative with analysis methods, namely SWOT analysis and spatial analysis. The result of this study, based on a SWOT analysis, showed that there was community-based management in coordination with the government, the community and the private sector. Spatial analysis showed that the land cover of the Sekadau River was still dominated by vegetation along the riverbanks, but the problem was in the estuary which had become a settlement. At the bottom of the river, there was a stepping stone corridor, in the middle there was a linear corridor and at the top of the river there was a linear corridor.

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SUITABILITY ANALYSIS OF FLOATING CAGE CULTURE OF GROUPER FISH USING GIS IN RINGGUNG WATERS OF LAMPUNG

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.28930/jitkt.v9i1.17926 ◽

2017 ◽

Vol 9 (1) ◽

pp. 151

Author(s):

Indah Febry Hastari ◽

Rahmat Kurnia ◽

M. Mukhlis Kamal

Keyword(s):

Water Quality ◽

Spatial Analysis ◽

Dissolved Oxygen ◽

Suitability Analysis ◽

Cage Culture

The study aims to determine suitability of floating cage (KJA) culture of grouper fish in Ringgung waters of Lampung. Data were analysed using GIS for spatial analysis at five stations. There were 10 water quality parameters measured, such as bathimetry, current velocity, water transparency, temperature, salinity, pH, dissolved oxygen, nitrate, ammonia, and phosphate. Three suitability criteria, i.e very suitable, suitable, and not suitable were used to determine the suitability of floating cage culture of grouper fish. The results show that from 99.168,5 ha of the total area used for floating cage culture of grouper fish, about 85,94% covering 8522,16 ha were classified as very suitable, 5,64% covering 559,69 ha classified as suitable, and 8,42% covering 835 ha classified as not suitable. Keywords : grouper culture, suitability, Ringgung waters, Lampung Province, GIS

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