hala abayazid - Academia.edu (original) (raw)

Papers by hala abayazid

Research paper thumbnail of Strengthened Adaptive Capacity Using Interactive Approach Integrative Framework: Science Community with Civil Society

IOSR Journal of Mechanical and Civil Engineering, 2012

Climate change phenomenon brought major uncertainty and stresses to environmental resources. In p... more Climate change phenomenon brought major uncertainty and stresses to environmental resources. In particular, the coastal ecosystems are customarily considered one of the most complex systems to sustain, experiencing continuous fluctuation and changes by nature, and climate change will only add to this complexity. That fact underscores the necessity of finding effective adaptive methodology governing the coastal system vulnerability while facing climate change impact. This paper argues that sustainability of coastal zones must employ an adaptive policy that incorporates multidisciplinary regulatory mechanism along with community inputs for better decision support. Through a case study application in a coastal zone NorthEastern of the Nile Delta of Egypt, the hypothesis of having a multidisciplinary adaptation plan cutting across major sectors, while applying an interactive framework that ensure involvement of communities and stakeholders all along the planning process, proved to lead to strengthened resilience of coastal developments facing climate change impact.

Research paper thumbnail of Vulnerability Assessment of Climate Change Impact on Groundwater Salinity in the Nile Delta Coastal Region—Egypt

Batad Rice Terraces of Ifugao, Philippines, is declared as a Globally Important Agricultural Heri... more Batad Rice Terraces of Ifugao, Philippines, is declared as a Globally Important Agricultural Heritage System due to its traditional system characterized with a synergy of goals of biodiversity conservation, sustainable productivity, and strengthening of traditions and culture. It is also inscribed as a World Heritage Site by the UNESCO. However, in spite of the fact that it is considered a living sustainable agricultural system, it is hypothesized that the rice terraces are not immune to the impacts brought about by climate change. This study aimed to determine the level of vulnerability of Batad Rice Terraces to climate change impacts. To do this, the study examined the vulnerability as a function of exposure (E), sensitivity (S), and adaptive capacity (AC). The study used 28 indicators: 5 for exposure, 12 for sensitivity, and 11 for adaptive capacity. A total of 114 respondents were interviewed and focus group discussions were conducted in July-August 2017. Results of the study showed that the vulnerability rating for the study was 0.51 (E = 0.40; S = 0.65; and AC = 0.51) which indicated that Batad Rice Terraces is moderately vulnerable to climate change impacts. Of the 28 indicators, the key vulnerability indices are from sensitivity and adaptive capacity components. Under sensitivity, it includes acidic soil pH, soil potassium deficiency, the perceived increase in the presence of pests, the high dependence on irrigation structure, agricultural unsuitability, and food import dependency, while adaptive capacity indicators include the declining practice of key traditions and the low number of farmers per household.

Research paper thumbnail of Prospect of Retrieving Non-optical Water Quality Properties with Remote Sensing Techniques

Research paper thumbnail of Mapping Rainwater Harvesting in Coastal Zone Use of Remote Sensing Techniques -Case Study Northwestern Coast of Egypt

Research paper thumbnail of Employing Remote Sensing for Water Clarity Monitoring in the Nile Delta Coast

Research paper thumbnail of Comparative Assessment of Techniques for Bathymetry Derivation from Multispectral Satellite Imagery in the Nile Delta Coast-Egypt

Bathymetric mapping with frequent updating is an essential practice for marine monitoring, modeli... more Bathymetric mapping with frequent updating is an essential practice for marine monitoring, modeling, and management of active changes in coastal environment. While conventional field survey experience certain limitation in coverage, frequency beside operational difficulties, remote sensing-based bathymetry retrieval witnesses significant development. This research study investigates potential applicability, as well as optimal methodology, for bathymetry derivation from satellite imagery in Egyptian coast, through a case study application in the Nile delta coastal zone. The study presents application with three techniques for satellite-based water depth retrieval; Artificial Neural Network (ANN), Single Band Algorithm (SBA) and multi-band Ratio Transform Model, using LandSat8 imagery. Training alternative ANN networks showed moderate correlation of estimated water depths with ground truth datasets (RMSE of 1.54 and MAE of 1.22). Comparative application with one band versus multiband ...

Research paper thumbnail of Coastal Lake Sustainability: Threats And Opportunities With Climate Change

Research paper thumbnail of Strengthened Adaptive Capacity Using Interactive Approach Integrative Framework: Science Community with Civil Society

Research paper thumbnail of Changes in a Coastal Lake Dynamic System and Potential Restoration

The Handbook of Environmental Chemistry, 2017

Northern coastal zone of Egypt hosts lakes with distinguished characteristics. Earlier, certain c... more Northern coastal zone of Egypt hosts lakes with distinguished characteristics. Earlier, certain coastal lakes were acknowledged as nature reserve, with their rich aquatic environment as well as playing a hosting role to migratory birds. However, maintained conditions with ever-expanding development activities are a challenge. This chapter addresses aspects in the changing structure of coastal lakes; governing factors responsible for the declining dynamic system. Hence, challenges with sustainability and capacity to recover are discussed. As remote sensing techniques proved cost-effective tool, with reasonable accuracy, for monitoring temporal and spatial changes, an application is presented to a case study of the deltaic coastal lake, Lake Burullus. Among the wide information that can be derived from satellite imageries, water quality index is selected as a key indicator to gain insight into evolving environmental state of the coastal lake. Finally, the chapter discusses proposed strategies to regain efficient functionality and sustainable beneficial uses of coastal lakes, while considering applicability.

Research paper thumbnail of Egyptian coastal lakes and wetlands

Research paper thumbnail of Assessment of Temporal and Spatial Alteration in Coastal Lakes - Egypt

Northern region of Egypt host coastal lakes with distinguished characteristics. Special environme... more Northern region of Egypt host coastal lakes with distinguished characteristics. Special environmental importance was earned when northern lakes have been acknowledged nature reserve with rich aquatic biota and key role as host to migratory birds. Also, with growing concerns of climate change impact, northern lakes are considered the front line defense to Egypt against possible Mediterranean Sea level rise. However, deteriorating condition has been noticed and triggered a number of studies for reaching sustainability. This research employs satellite imageries and remote sensing techniques for monitoring temporal and spatial changes in coastal lakes, while analyze causeeffect of development activities in catchment, on one hand, and climate change on the other. The study shows how the remote sensing facilitate coverage of wider stretch (Manzala, Burullus, Edko and Bardawil coastal lakes) and longer period of time (1984 - 2014), with reasonable resolution (30*30 meter). The study also d...

Research paper thumbnail of Conceptual Merge of Ecohydrologic Watershed and Sponge City Techniques for Managed Sustainability and Strengthened Adaptive Capacity of Nile Delta Coastal Lakes, Egypt

International Journal of Recent Technology and Engineering, 2019

Nile Delta coastal zone in Egypt has special socioeconomic and environmental importance, with int... more Nile Delta coastal zone in Egypt has special socioeconomic and environmental importance, with internationally acknowledged wetland systems. However, sustainability and adaptive capacity are compromised with progressive developments. Coastal lakes serve basins with intermixed industrial, urbanized and agricultural activities, which require an integrative approach for strengthened adaptivity and sustainability management. This research study presents an innovative management plan that conceptually merges the EcoHydrology approach with the recently initiated Sponge City approach. Principles of both approaches are reviewed to select components that are applicable and practically approved in the Egyptian conditions and evolving changes in the study area of Edku coastal lake. With an analysis of regional activities as well as the use of remote sensing techniques, the study first establishes a base insight into the historic spatiotemporal alterations in Edku lake and its served basin. Then...

Research paper thumbnail of Assessment of a Non-Optical Water Quality Property Using Space-Based Imagery in Egyptian Coastal Lake

Journal of Water Resource and Protection, 2019

Progressive anthropogenic intrusion and increasing water demand necessitate frequent water qualit... more Progressive anthropogenic intrusion and increasing water demand necessitate frequent water quality monitoring for sustainability management. Unlike laborious, time consuming field-based measurements, remote sensing-based water quality retrieval proved promising to overcome difficulties with temporal and spatial coverage. However, remotely estimated water quality parameters are mostly related to visibility characteristic and optically active property of water. This study presents results of an investigated approach to derive oxygen-related water quality parameter, namely Dissolved Oxygen (DO), in a shallow inland water body from satellite imagery. The approach deduces DO levels based on interrelated optical properties that dictate oxygen consumption and release in waters. Comparative analysis of multiple regression algorithms was carried out, using various combinations of parameters; namely, Turbidity, Total Suspended Solids (TSS), Chlorophyll-a, and Temperature. To cover the wide range of conditions that is experienced by Edku coastal lake, ground truth measurements covering the four seasons were used with corresponding satellite imageries. While results show successful statistically significant correlation in certain combinations considered, yet optimal results were concluded with Turbidity and natural logarithm of temperature. The algorithm model was developed with summer and fall data (R2 0.79), then validated with winter and spring data (R2 0.67). Retrieved DO concentrations highlighted the variability in pollution degree and zonation nature within that coastal lake, as related to boundary interactions and irregularity in flow dynamics within. The approach presented in this study encourages expanded applications with space-based earth observation products for exploring non-detectable water quality parameters that are interlinked with optically active properties in water.

Research paper thumbnail of Strengthened Adaptive Capacity Using Interactive Approach Integrative Framework: Science Community with Civil Society

IOSR Journal of Mechanical and Civil Engineering, 2012

Climate change phenomenon brought major uncertainty and stresses to environmental resources. In p... more Climate change phenomenon brought major uncertainty and stresses to environmental resources. In particular, the coastal ecosystems are customarily considered one of the most complex systems to sustain, experiencing continuous fluctuation and changes by nature, and climate change will only add to this complexity. That fact underscores the necessity of finding effective adaptive methodology governing the coastal system vulnerability while facing climate change impact. This paper argues that sustainability of coastal zones must employ an adaptive policy that incorporates multidisciplinary regulatory mechanism along with community inputs for better decision support. Through a case study application in a coastal zone NorthEastern of the Nile Delta of Egypt, the hypothesis of having a multidisciplinary adaptation plan cutting across major sectors, while applying an interactive framework that ensure involvement of communities and stakeholders all along the planning process, proved to lead to strengthened resilience of coastal developments facing climate change impact.

Research paper thumbnail of Vulnerability assessment of climate change impacts on groundwater resources in Timor-Leste

Research paper thumbnail of Coastal Lake Sustainability: Threats And Opportunities With Climate Change

IOSR Journal of Mechanical and Civil Engineering, 2012

Northern coastal lakes in the Nile Delta of Egypt have an ecosystem of distinctive nature. While ... more Northern coastal lakes in the Nile Delta of Egypt have an ecosystem of distinctive nature. While customary acknowledged as environmentally rich water bodies, these lakes are alleviating the non-favorable polluting effect of development activities before reaching the Mediterranean Sea. Moreover, climate change challenges are adding more important role to coastal lakes to act as natural adaptive measure that effectively buffer potential sea level rise or any unprecedented events. Therefore, efforts are needed to maintain sustainable system for coastal lakes in face of continuously altering conditions. The main goal of this research study is to investigate vulnerability of coastal lake systems in facing climate changes, with reference to the water quality status. As a key indicator of healthy ecological structure, acceptable quality condition would ensure beneficial uses and, consequently, socioeconomic well-being in served watershed. With the existing challenges of development processes, this research considers the hypothesis of regarding the climate change phenomenon as potentially having positive impact in improving certain water quality problems. Through a case study application in Lake Burullus, located in the northern coast of Egypt; this research study addresses one of the main water quality problems defined, which is the declining salinity level, and entailed deteriorating aquatic ecosystem and fish population. Projection for changes in salinity concentrations is based on changes in inflow/outflow salinity budget with predicted change in climate. Results show that climate change will improve water salinity within the lake under consideration by year 2150. However, meeting target levels would still require supplementary measures. Finally, this research proposes management plan with applicable adaptation measures for Lake Burullus. This research also sets basis for future research continuation while considering factors from coastal side and served watershed side, simultaneously. This research sheds some light, through Lake Burullus case study, on management measures for coastal lakes to be considered by decision makers.

Research paper thumbnail of Strengthened Adaptive Capacity Using Interactive Approach Integrative Framework: Science Community with Civil Society

IOSR Journal of Mechanical and Civil Engineering, 2012

Climate change phenomenon brought major uncertainty and stresses to environmental resources. In p... more Climate change phenomenon brought major uncertainty and stresses to environmental resources. In particular, the coastal ecosystems are customarily considered one of the most complex systems to sustain, experiencing continuous fluctuation and changes by nature, and climate change will only add to this complexity. That fact underscores the necessity of finding effective adaptive methodology governing the coastal system vulnerability while facing climate change impact. This paper argues that sustainability of coastal zones must employ an adaptive policy that incorporates multidisciplinary regulatory mechanism along with community inputs for better decision support. Through a case study application in a coastal zone NorthEastern of the Nile Delta of Egypt, the hypothesis of having a multidisciplinary adaptation plan cutting across major sectors, while applying an interactive framework that ensure involvement of communities and stakeholders all along the planning process, proved to lead to strengthened resilience of coastal developments facing climate change impact.

Research paper thumbnail of Vulnerability Assessment of Climate Change Impact on Groundwater Salinity in the Nile Delta Coastal Region—Egypt

Batad Rice Terraces of Ifugao, Philippines, is declared as a Globally Important Agricultural Heri... more Batad Rice Terraces of Ifugao, Philippines, is declared as a Globally Important Agricultural Heritage System due to its traditional system characterized with a synergy of goals of biodiversity conservation, sustainable productivity, and strengthening of traditions and culture. It is also inscribed as a World Heritage Site by the UNESCO. However, in spite of the fact that it is considered a living sustainable agricultural system, it is hypothesized that the rice terraces are not immune to the impacts brought about by climate change. This study aimed to determine the level of vulnerability of Batad Rice Terraces to climate change impacts. To do this, the study examined the vulnerability as a function of exposure (E), sensitivity (S), and adaptive capacity (AC). The study used 28 indicators: 5 for exposure, 12 for sensitivity, and 11 for adaptive capacity. A total of 114 respondents were interviewed and focus group discussions were conducted in July-August 2017. Results of the study showed that the vulnerability rating for the study was 0.51 (E = 0.40; S = 0.65; and AC = 0.51) which indicated that Batad Rice Terraces is moderately vulnerable to climate change impacts. Of the 28 indicators, the key vulnerability indices are from sensitivity and adaptive capacity components. Under sensitivity, it includes acidic soil pH, soil potassium deficiency, the perceived increase in the presence of pests, the high dependence on irrigation structure, agricultural unsuitability, and food import dependency, while adaptive capacity indicators include the declining practice of key traditions and the low number of farmers per household.

Research paper thumbnail of Prospect of Retrieving Non-optical Water Quality Properties with Remote Sensing Techniques

Research paper thumbnail of Mapping Rainwater Harvesting in Coastal Zone Use of Remote Sensing Techniques -Case Study Northwestern Coast of Egypt

Research paper thumbnail of Employing Remote Sensing for Water Clarity Monitoring in the Nile Delta Coast

Research paper thumbnail of Comparative Assessment of Techniques for Bathymetry Derivation from Multispectral Satellite Imagery in the Nile Delta Coast-Egypt

Bathymetric mapping with frequent updating is an essential practice for marine monitoring, modeli... more Bathymetric mapping with frequent updating is an essential practice for marine monitoring, modeling, and management of active changes in coastal environment. While conventional field survey experience certain limitation in coverage, frequency beside operational difficulties, remote sensing-based bathymetry retrieval witnesses significant development. This research study investigates potential applicability, as well as optimal methodology, for bathymetry derivation from satellite imagery in Egyptian coast, through a case study application in the Nile delta coastal zone. The study presents application with three techniques for satellite-based water depth retrieval; Artificial Neural Network (ANN), Single Band Algorithm (SBA) and multi-band Ratio Transform Model, using LandSat8 imagery. Training alternative ANN networks showed moderate correlation of estimated water depths with ground truth datasets (RMSE of 1.54 and MAE of 1.22). Comparative application with one band versus multiband ...

Research paper thumbnail of Coastal Lake Sustainability: Threats And Opportunities With Climate Change

Research paper thumbnail of Strengthened Adaptive Capacity Using Interactive Approach Integrative Framework: Science Community with Civil Society

Research paper thumbnail of Changes in a Coastal Lake Dynamic System and Potential Restoration

The Handbook of Environmental Chemistry, 2017

Northern coastal zone of Egypt hosts lakes with distinguished characteristics. Earlier, certain c... more Northern coastal zone of Egypt hosts lakes with distinguished characteristics. Earlier, certain coastal lakes were acknowledged as nature reserve, with their rich aquatic environment as well as playing a hosting role to migratory birds. However, maintained conditions with ever-expanding development activities are a challenge. This chapter addresses aspects in the changing structure of coastal lakes; governing factors responsible for the declining dynamic system. Hence, challenges with sustainability and capacity to recover are discussed. As remote sensing techniques proved cost-effective tool, with reasonable accuracy, for monitoring temporal and spatial changes, an application is presented to a case study of the deltaic coastal lake, Lake Burullus. Among the wide information that can be derived from satellite imageries, water quality index is selected as a key indicator to gain insight into evolving environmental state of the coastal lake. Finally, the chapter discusses proposed strategies to regain efficient functionality and sustainable beneficial uses of coastal lakes, while considering applicability.

Research paper thumbnail of Egyptian coastal lakes and wetlands

Research paper thumbnail of Assessment of Temporal and Spatial Alteration in Coastal Lakes - Egypt

Northern region of Egypt host coastal lakes with distinguished characteristics. Special environme... more Northern region of Egypt host coastal lakes with distinguished characteristics. Special environmental importance was earned when northern lakes have been acknowledged nature reserve with rich aquatic biota and key role as host to migratory birds. Also, with growing concerns of climate change impact, northern lakes are considered the front line defense to Egypt against possible Mediterranean Sea level rise. However, deteriorating condition has been noticed and triggered a number of studies for reaching sustainability. This research employs satellite imageries and remote sensing techniques for monitoring temporal and spatial changes in coastal lakes, while analyze causeeffect of development activities in catchment, on one hand, and climate change on the other. The study shows how the remote sensing facilitate coverage of wider stretch (Manzala, Burullus, Edko and Bardawil coastal lakes) and longer period of time (1984 - 2014), with reasonable resolution (30*30 meter). The study also d...

Research paper thumbnail of Conceptual Merge of Ecohydrologic Watershed and Sponge City Techniques for Managed Sustainability and Strengthened Adaptive Capacity of Nile Delta Coastal Lakes, Egypt

International Journal of Recent Technology and Engineering, 2019

Nile Delta coastal zone in Egypt has special socioeconomic and environmental importance, with int... more Nile Delta coastal zone in Egypt has special socioeconomic and environmental importance, with internationally acknowledged wetland systems. However, sustainability and adaptive capacity are compromised with progressive developments. Coastal lakes serve basins with intermixed industrial, urbanized and agricultural activities, which require an integrative approach for strengthened adaptivity and sustainability management. This research study presents an innovative management plan that conceptually merges the EcoHydrology approach with the recently initiated Sponge City approach. Principles of both approaches are reviewed to select components that are applicable and practically approved in the Egyptian conditions and evolving changes in the study area of Edku coastal lake. With an analysis of regional activities as well as the use of remote sensing techniques, the study first establishes a base insight into the historic spatiotemporal alterations in Edku lake and its served basin. Then...

Research paper thumbnail of Assessment of a Non-Optical Water Quality Property Using Space-Based Imagery in Egyptian Coastal Lake

Journal of Water Resource and Protection, 2019

Progressive anthropogenic intrusion and increasing water demand necessitate frequent water qualit... more Progressive anthropogenic intrusion and increasing water demand necessitate frequent water quality monitoring for sustainability management. Unlike laborious, time consuming field-based measurements, remote sensing-based water quality retrieval proved promising to overcome difficulties with temporal and spatial coverage. However, remotely estimated water quality parameters are mostly related to visibility characteristic and optically active property of water. This study presents results of an investigated approach to derive oxygen-related water quality parameter, namely Dissolved Oxygen (DO), in a shallow inland water body from satellite imagery. The approach deduces DO levels based on interrelated optical properties that dictate oxygen consumption and release in waters. Comparative analysis of multiple regression algorithms was carried out, using various combinations of parameters; namely, Turbidity, Total Suspended Solids (TSS), Chlorophyll-a, and Temperature. To cover the wide range of conditions that is experienced by Edku coastal lake, ground truth measurements covering the four seasons were used with corresponding satellite imageries. While results show successful statistically significant correlation in certain combinations considered, yet optimal results were concluded with Turbidity and natural logarithm of temperature. The algorithm model was developed with summer and fall data (R2 0.79), then validated with winter and spring data (R2 0.67). Retrieved DO concentrations highlighted the variability in pollution degree and zonation nature within that coastal lake, as related to boundary interactions and irregularity in flow dynamics within. The approach presented in this study encourages expanded applications with space-based earth observation products for exploring non-detectable water quality parameters that are interlinked with optically active properties in water.

Research paper thumbnail of Strengthened Adaptive Capacity Using Interactive Approach Integrative Framework: Science Community with Civil Society

IOSR Journal of Mechanical and Civil Engineering, 2012

Climate change phenomenon brought major uncertainty and stresses to environmental resources. In p... more Climate change phenomenon brought major uncertainty and stresses to environmental resources. In particular, the coastal ecosystems are customarily considered one of the most complex systems to sustain, experiencing continuous fluctuation and changes by nature, and climate change will only add to this complexity. That fact underscores the necessity of finding effective adaptive methodology governing the coastal system vulnerability while facing climate change impact. This paper argues that sustainability of coastal zones must employ an adaptive policy that incorporates multidisciplinary regulatory mechanism along with community inputs for better decision support. Through a case study application in a coastal zone NorthEastern of the Nile Delta of Egypt, the hypothesis of having a multidisciplinary adaptation plan cutting across major sectors, while applying an interactive framework that ensure involvement of communities and stakeholders all along the planning process, proved to lead to strengthened resilience of coastal developments facing climate change impact.

Research paper thumbnail of Vulnerability assessment of climate change impacts on groundwater resources in Timor-Leste

Research paper thumbnail of Coastal Lake Sustainability: Threats And Opportunities With Climate Change

IOSR Journal of Mechanical and Civil Engineering, 2012

Northern coastal lakes in the Nile Delta of Egypt have an ecosystem of distinctive nature. While ... more Northern coastal lakes in the Nile Delta of Egypt have an ecosystem of distinctive nature. While customary acknowledged as environmentally rich water bodies, these lakes are alleviating the non-favorable polluting effect of development activities before reaching the Mediterranean Sea. Moreover, climate change challenges are adding more important role to coastal lakes to act as natural adaptive measure that effectively buffer potential sea level rise or any unprecedented events. Therefore, efforts are needed to maintain sustainable system for coastal lakes in face of continuously altering conditions. The main goal of this research study is to investigate vulnerability of coastal lake systems in facing climate changes, with reference to the water quality status. As a key indicator of healthy ecological structure, acceptable quality condition would ensure beneficial uses and, consequently, socioeconomic well-being in served watershed. With the existing challenges of development processes, this research considers the hypothesis of regarding the climate change phenomenon as potentially having positive impact in improving certain water quality problems. Through a case study application in Lake Burullus, located in the northern coast of Egypt; this research study addresses one of the main water quality problems defined, which is the declining salinity level, and entailed deteriorating aquatic ecosystem and fish population. Projection for changes in salinity concentrations is based on changes in inflow/outflow salinity budget with predicted change in climate. Results show that climate change will improve water salinity within the lake under consideration by year 2150. However, meeting target levels would still require supplementary measures. Finally, this research proposes management plan with applicable adaptation measures for Lake Burullus. This research also sets basis for future research continuation while considering factors from coastal side and served watershed side, simultaneously. This research sheds some light, through Lake Burullus case study, on management measures for coastal lakes to be considered by decision makers.