Coastal sensitivity assessment for Thiruvananthapuram, west coast of India

Shaji, Jithu

doi:10.1007/s11069-014-1139-y

Cited by 22 publications

(7 citation statements)

References 32 publications

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“…Naturally, this study builds on previous studies to assess CVI (Pendleton and Theiler 2005;Islama et al 2016;Hoque et al 2019;Shaji 2014); however, it is the first coastal vulnerability assessment covering a large part of the NC-GB that relates to coastal hazards. This index-based analysis has been applied in several coastal countries around the world to assess the vulnerability of the coastal regions to coastal hazards (Djouder and Boutiba 2017;Addo 2013).…”

Section: Discussionmentioning

confidence: 99%

“…Prevention are one of the most risk management strategies to contain the coastal hazards impacts on coastal community, properties, and ecological environment (Hoque et al 2017;Murali et al 2013). In most coastal countries, researchers have made attempts to evaluate the level of coastal vulnerability by employing geophysical parameters like geomorphology, shoreline dynamic, relative sea-level change, wave regime, coastal slope and others (Kumar and Kunte 2012a;Gornitz 1994;Pendleton et al 2005;Hamid et al 2019;Islama et al 2016;Shaji 2014) as well as population densities as a socio-economic parameter (Boruff † and Emrich †, 2005;Szlafsztein and Sterr, 2007;Kunte et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Coastal Vulnerability Assessment Based on Multi-Hazardous Events. Case study: Northwestern Coastline of Guinea-Bissau (NC-GB)

Lopes

Matomela

et al. 2021

Preprint

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Guinea-Bissau coastlines are found highly vulnerable to coastal hazards, and this vulnerability will likely increase under future climate changes scenarios. In addition, the multi-hazardous assessment studies have not yet been conducted to clarify the status of vulnerability index to coastal hazards. Therefore, we integrated eight bio-geophysical parameters and elaborate a comprehensive Coastal Vulnerability Index to coastal hazards, stablish the rate of sea-level rise and determine the role of coastal habitats in protecting the shorelines in the Northwestern Coastline of Guinea-Bissau, by using the GIS and Coastal Vulnerability Index of InVEST Model. The study found that, out of 87 km of the studied coastlines, nearly 45 km lie in high to very-high vulnerability index. 17 km are found in a moderate vulnerability index and 25 km are found at low to very-low vulnerability index. The main responsible for high vulnerability registered in Zone-B were the wind and wave exposure, as this coastline is highly exposed to sea. The other reason was the storm surge and sea-level that rises 8.79/year, motivated by low coastal elevation. Mangrove ecosystem that are largely found in Zone-A, play very important role in protecting shoreline from coastal hazards with value 0.61, followed by forest and sand dune that are found mostly in Zone-C with 0.49 and 0.4 respectively, and saltmarsh that are relatively found in Zone-B with value 0.32. These findings can assist coastal managers in cost-effective adaptation plans, provide a scientific basis for sustainable coastal management and guidance for ecological conservation in coastal regions.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Coastal Vulnerability Assessment Based on Multi-Hazardous Events. Case study: Northwestern Coastline of Guinea-Bissau (NC-GB)

Lopes

Matomela

et al. 2021

Preprint

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“…The coastal and marine ecological changes and fish cage culture development in Phu Quoc, Vietnam, from 2001 to 2011 were estimated in [12]. The coastal sensitivity of Thiruvananthapuram on the west coast of India was assessed in [13].…”

Section: Main Issues Of Coastal Environmentsmentioning

confidence: 99%

Monitoring the Coastal Environment Using Remote Sensing and GIS Techniques

Jiang¹,

Hao²,

Fu³

2016

Applied Studies of Coastal and Marine Environments

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The coastal zone has been of importance for economic development and ecological restoration due to their rich natural resources and vulnerable ecosystems. Remote sensing techniques have proven to be powerful tools for the monitoring of the Earth's surface and atmosphere on a global, regional, and even local scale, by providing important coverage, mapping and classification of land cover features such as vegetation, soil, water and forests. This chapter introduced the methods for monitoring the coastal environment using remote sensing and GIS techniques. Case studies of port expansion monitoring in typical coastal regions, together with the coastal environment changes analysis were also presented. Coastal zones are important for economic development and ecological restoration due to their rich natural resources and vulnerable ecosystems. Remote sensing techniques have been shown to be powerful tools in the monitoring of the Earth's surface and atmosphere on global, regional, and local scales. These techniques provide important coverage and mapping and help classify land cover, such as vegetation, soil, water, and forests. The main objectives of this chapter are (1) to introduce the state-of-the-art techniques on monitoring coastal environments using remote sensing and geographic information systems (GIS), including landscape classification, automatic classification and change detection on regional scale, and objective-based classification on local scale, and (2) to present case studies of coastal environment monitoring, including Zhan Jiang Port in the stage of specialization, Gwadar Port and Djibouti Port in the expansion stage, and Ilichevsk Port in the stable stage.

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“…11 Tidal seawater circulation only played a minor role due to the microtidal environment (<1 m tidal range) in southern Kerala. 36 NO 3 accounted for >85% of soluble reactive nitrogen of all samples from Varkala Beach (Figure A in the Supporting Information). NO 3 concentrations along the beach cross section, in pore water samples and in sediment cores, were on average 54 times greater than NH 4 (Figures A and B in the Supporting Information), so we focus the interpretation on nitrate.…”

Section: ■ Introductionmentioning

confidence: 99%

Tropical Beaches Attenuate Groundwater Nitrogen Pollution Flowing to the Ocean

Oehler

Ramasamy

George

et al. 2021

Environ. Sci. Technol.

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Tropical urbanized coastal regions are hotspots for the discharge of nutrient-enriched groundwater, which can affect sensitive coastal ecosystems. Here, we investigated how a beach modifies groundwater nutrient loads in southern India (Varkala Beach), using flux measurements and stable isotopes. Fresh groundwater was highly enriched in NO3 from sewage or manure. Submarine groundwater discharge and nearshore groundwater discharge were equally important contributors to coastal NO3 fluxes with 303 mmol NO3 m–1 day–1 in submarine and 334 mmol NO3 m–1 day–1 in nearshore groundwater discharge. However, N/P ratios in nearshore groundwater discharge were up to 3 orders of magnitude greater than that in submarine groundwater, which can promote harmful algae blooms. As groundwater flowed through the beach, N/P ratios decreased toward Redfield ratios due to the removal of 30–50% of NO3 due to denitrification and production of PO4 due to mineralization of organic matter. Overall, tropical beaches can be important natural biogeochemical reactors that attenuate nitrogen pollution and modify N/P ratios in submarine groundwater discharge.

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Coastal sensitivity assessment for Thiruvananthapuram, west coast of India

Cited by 22 publications

References 32 publications

Coastal Vulnerability Assessment Based on Multi-Hazardous Events. Case study: Northwestern Coastline of Guinea-Bissau (NC-GB)

Coastal Vulnerability Assessment Based on Multi-Hazardous Events. Case study: Northwestern Coastline of Guinea-Bissau (NC-GB)

Monitoring the Coastal Environment Using Remote Sensing and GIS Techniques

Tropical Beaches Attenuate Groundwater Nitrogen Pollution Flowing to the Ocean

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