Remote Sensing Applications in Coastal Areas

Lacava, Teodosio; Ciancia, Emanuele

doi:10.3390/s20092673

“…Sea-level rise (SLR) has far-reaching consequences for low-lying coastal communities and beyond. The direct impacts of SLR can be quite severe, including flooding of low-lying areas, erosion of coastlines, destruction of coastal wetlands, infiltration of saltwater into freshwater sources, higher groundwater levels, and elevated water levels that can cause coastal flooding [16][17][18]. Human-induced pressures on the coastal zone (such as population growth, subsurface fluid abstraction, and changes in the hydrological regime, including damming) will exacerbate the effects of sea-level rise [9,19].…”

Section: Introductionmentioning

confidence: 99%

Sea Level Rise and Climate Change - Impacts on African Coastal Systems and Cities

J. Nhantumbo,

A. Dada,

E.K. Ghomsi

2023

Sea Level Rise and Climate Change - Impacts on Coastal Systems and Cities [Working Title]

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Coastal zones are more densely populated and of great ecological and economic significance. The potential implications of climate change are greatest in areas with dense populations and associated economic activities, such as low-lying coastal cities. Few, if any, African coastal cities are prepared to deal with the impacts of climate change, particularly sea level rise and storm events. African coastal cities are characterized by rapid and unplanned growth, high population concentrations, and overburdened infrastructure, all of which will influence the extent of any possible consequences caused by changes in extreme water levels in the twenty-first century. Most of the African coastal cities currently face significant threats from direct and indirect impacts of climate variability and change. Despite these threats, few coastal cities have been assessed for potential coastal impacts. Sea level rise threatens infrastructure, coastal agriculture, key ecosystems and fisheries at risk. Concern about all these effects of the changing climate and rising sea levels is apparent. This chapter, therefore, provides a broader understanding of the potential hazards and anticipated impacts on most African coastal systems and cities based on physical exposure and socio-economic vulnerability to climate extremes and sea level rise.

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“…Urban ecological environment monitoring plays a fundamental role in the control of air pollution by understanding its impact on the environment [11][12][13]. With the development of satellite remote sensing, satellite image data have played an important role in urban ecological environment monitoring because of their high spatial resolution, wide coverage, and fast acquisition [14][15][16]. On October 13, 2017, the European Space Agency successfully launched the Sentinel-5P satellite for air quality monitoring [17,18].…”

Section: Introductionmentioning

confidence: 99%

Monitoring of urban ecological environment including air quality using satellite imagery

Wang

¹

,

Cai

²

,

Yang

³

et al. 2022

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Rapid urbanisation has highlighted problems in the urban ecological environment and stimulated research on the evaluation of urban environments. In previous studies, key factors such as greenness, wetness, and temperature were extracted from satellite images to assess the urban ecological environment. Although air pollution has become increasingly serious as urbanisation proceeds, information on air pollution is not included in existing models. The Sentinel-5P satellite launched by the European Space Agency in 2017 is a reliable data source for monitoring air quality. By making full use of images from Landsat 8, Sentinel-2A, and Sentinel-5P, this work attempts to construct a new remote sensing monitoring index for urban ecology by adding air quality information to the existing remote sensing ecological index. The proposed index was tested in the Beijing metropolitan area using satellite data from 2020. The results obtained using the proposed index differ greatly in the central urban region and near large bodies of water from those obtained using the existing remote sensing monitoring model, indicating that air quality plays a significant role in evaluating the urban ecological environment. Because the model constructed in this study integrates information on vegetation, soil, humidity, heat, and air quality, it can comprehensively and objectively reflect the quality of the urban ecological environment. Consequently, the proposed remote sensing index provides a new approach to effectively monitoring the urban ecological environment.

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“…With the development of satellite remote sensing, satellite image data have played an important role in urban ecological environment monitoring because of their high spatial resolution, wide coverage, and fast acquisition [8][9][10]. On October 13, 2017, the European Space Agency successfully launched the Sentinel-5P satellite for air quality monitoring [11,12].…”

Section: Introductionmentioning

confidence: 99%

Monitoring of urban ecological environment including air quality using satellite imagery

Wang

¹

,

Cai

²

,

Yang

³

et al. 2022

Preprint

0

View full text Add to dashboard Cite

Rapid urbanisation has highlighted problems in the urban ecological environment and stimulated research on the evaluation of urban environments. In previous studies, key factors such as greenness, wetness, and temperature were extracted from satellite images to assess the urban ecological environment. Although air pollution has become increasingly serious as urbanisation proceeds, information on air pollution is not included in existing models. The Sentinel-5P satellite launched by the European Space Agency in 2017 is a reliable data source for monitoring air quality. By making full use of images from Landsat 8, Sentinel-2A, and Sentinel-5P, this work attempts to construct a new remote sensing monitoring index for urban ecology by adding air quality information to the existing remote sensing ecological index. The proposed index was tested in the Beijing metropolitan area using satellite data from 2020. The results obtained using the proposed index differ greatly in the central urban region and near large bodies of water from those obtained using the existing remote sensing monitoring model, indicating that air quality plays a significant role in evaluating the urban ecological environment. Because the model constructed in this study integrates information on vegetation, soil, humidity, heat, and air quality, it can comprehensively and objectively reflect the quality of the urban ecological environment. Consequently, the proposed remote sensing index provides a new approach to effectively monitoring the urban ecological environment.

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Remote Sensing Applications in Coastal Areas

Abstract: Coastal areas are regions of remarkable relevance for humans, providing essential components for social and economic development from the local to the national scale [...]

Cited by 6 publications

References 5 publications

Sea Level Rise and Climate Change - Impacts on African Coastal Systems and Cities

Sea Level Rise and Climate Change - Impacts on African Coastal Systems and Cities

Monitoring of urban ecological environment including air quality using satellite imagery

Monitoring of urban ecological environment including air quality using satellite imagery

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