Remote Sensing Technologies for the Assessment of Marine and Coastal Ecosystems

Gutierres, Francisco; Teodoro, Ana Cláudia; Reis, Eusébio; Neto, Carlos; Costa, José Carlos

doi:10.1007/978-3-319-25121-9_3

Cited by 8 publications

(5 citation statements)

References 122 publications

(161 reference statements)

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“…Further work is needed to investigate pollutant dispersion. Additional data collection would increase understanding of processes in this lagoon system (Blacka and Drummond, 2019;Gutierres et al, 2016) with climate patterns (Nayeb et al, 2014).…”

Section: Flushing Time Using Numerical Modelmentioning

confidence: 99%

Water circulation and impact on water quality in the southwest of Efate Island, Vanuatu

Faivre

Sami

Mackey

et al. 2021

Marine Pollution Bulletin

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In Small Island Developing States (SIDS), water pollution is not monitored or assessed frequently enough to fully understand the processes, impacts of water quality issues and what solutions are available This study investigated flushing time in Erakor lagoon and Port Vila Bay, Vanuatu using a numerical model developed in Delft3D. Microbial contamination by Escherichia coli was detected in multiple locations in the lagoon system with counts exceeding thresholds related to human health concerns. Modelling demonstrated a poor flushing time overall with a further decrease as the influence of waves and wind increased, especially in Vila Bay. Sea level rise resulted in an increase in flushing time downstream of the lagoon near the open sea, while with a decrease upstream and in Vila Bay. Based on these results, we recommend long-term continuous monitoring and identification of higher risks areas to prioritise decisions around wastewater management.

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Section: Flushing Time Using Numerical Modelmentioning

confidence: 99%

Water circulation and impact on water quality in the southwest of Efate Island, Vanuatu

Faivre

Sami

Mackey

et al. 2021

Marine Pollution Bulletin

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“…The study therefore also attempts to highlight the potential of geographical information system-based geostatistical techniques in assessing the groundwater quality of the region and investigating the water-borne disease susceptibility based on water quality indexing (Ali & Ahmad, 2020). While WQI and GIS are entrenched tools in environmental sciences, their application in the context of artificial fishponds is relatively limited (Gutierres et al, 2016). Existing studies primarily focus on natural water bodies like lakes and rivers.…”

Section: Introductionmentioning

confidence: 99%

Integrated Analysis of Water Quality in Artificial Fishponds Using WQI and GIS in South-East Sierra Leone

Kallon,

Mansaray,

Fida

et al. 2024

GEP

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Artificial fishponds play a pivotal role in global aquaculture, serving as a source of livelihood and nourishment for many communities. Ensuring the sustained health and productivity of Fishes in these environments relies heavily on water quality management. This assessment was done to determine the water quality of ten artificial fishponds in the south-eastern part of Sierra Leone using twelve physicochemical factors (pH, BOD, EC, TDS, turbidity, COD, Fe 2+ , Mg 2+ , Ca 2+ , NH 3 , 3 NO − , and alkalinity) to find out the Water Quality Index (WQI) and spatial distribution of respective parameters. The assessment of artificial fishponds using WQI and Inverse Distant Weighting (IDW) integration represents a relatively underexplored area within the domain of environmental water resources. The WQI was determined using the "Weighted Arithmetic Water Quality Index'' method. The results of WQI in the study area range from 65.05 to 147.26. Several locations have water quality deemed unsuitable for consumption, while others range from good to very poor. It is essential to address and improve water quality in locations categorized as unsuitable for consumption and very poor to ensure safe and healthy water sources. It was also clear from the calculation that the smaller the mean concentration value of the pH as compared to the ideal value (7), the smaller the WQI value and the better the water quality. To keep the artificial fishpond water in good condition, mass domestic use should be controlled, and draining of surrounding organic matter should be stopped in ponds Bo_001, Ke-nema_001, and Kenema_002.

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“…Coastal areas are specific regarding natural and anthropogenic components [1]. They are characterized by a high population density and accelerated socioeconomic growth [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Estimation of the Coastal Vulnerability Index Using Multi-Criteria Decision Making: The Coastal Social–Ecological System of Rachgoun, Western Algeria

Yahia Meddah,

Ghodbani,

Senouci

et al. 2023

Sustainability

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This research deals with spatial vulnerability in the coastal area of Rachgoun (Algeria), on the southern shore of the Mediterranean Sea. Over the past two decades, the coastal area of Rachgoun has been suffering from a large amount of pressure due to accelerated socioeconomic development, urbanization, tourism, fishing, and agriculture. The main objective of this study is to visualize the coastal vulnerability of Rachgoun using multi-criteria decision making (MCDM). A multidisciplinary approach that integrates geological, physical, and socioeconomic vulnerability was adopted. The selected parameters for the study include lithology, elevation, slope, shoreline change, significant wave height, population density, tourist density, land use/land cover (LULC), road network density, proximity to coast, distance from river, people’s awareness, and designated conservation areas and cultural heritage. Data from AlSat-2 Satellite imagery, aerial photography, topographic maps, and field surveys were processed. Spatial modeling was conducted through the MCDM approach and geographic information systems (GIS) to develop two sub-indices: the natural vulnerability index (CVIN) and the socioeconomic vulnerability index (CVIS). The combination of the two sub-indices allowed us to deduce the integrated coastal vulnerability index (ICVI). The outcomes present a coastal vulnerability map with a spatial resolution of 10 m of the identified problematic area. This map can guide decision-makers in implementing an effective integrated coastal zone management (ICZM) strategy.

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Remote Sensing Technologies for the Assessment of Marine and Coastal Ecosystems

Cited by 8 publications

References 122 publications

Water circulation and impact on water quality in the southwest of Efate Island, Vanuatu

Water circulation and impact on water quality in the southwest of Efate Island, Vanuatu

Integrated Analysis of Water Quality in Artificial Fishponds Using WQI and GIS in South-East Sierra Leone

Estimation of the Coastal Vulnerability Index Using Multi-Criteria Decision Making: The Coastal Social–Ecological System of Rachgoun, Western Algeria

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