Ashraf Dewan
Dados Biográficos
| ID | 6163412 |
|---|---|
| NOME | Ashraf Dewan |
| PRENOMES | Ashraf |
| SOBRENOME | Dewan |
| ASSINATURA | DEWAN A |
| AFILIAÇÕES | Curtin University |
| ORCID | 0000-0001-5594-5464 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 24 |
| TOTAL DE CITAÇÕES | 23 |
| TOTAL COMO AUTOR | 24 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2009 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 2 |
Spatio‐Temporal Changes of Land Use Carbon Emission/Absorption and Its Future Trend in Important Ecological Functional Areas—A Case Study in the Yellow River Basin
This study proposes a novel perspective for calculating construction land carbon emissions based on functional zoning classification. Focusing on the Yellow River Basin (YRB) and utilizing Point of Interest (POI) data, we classified construction land into eight distinct functional types based on the China Land Cover Dataset (CLCD) from 2012 to 2022. Integrating this functional classification system with data from the China Carbon Accounting Datab…
Towards nature-positive engineering
Coastal and deltaic regions are highly vulnerable to hydrometeorological hazards such as storms, flooding, and extreme temperatures—risks that are intensifying under climate change. While hard engineering structures (e.g. levees, seawalls) remain widely used, they can be costly, ecologically disruptive, and may exacerbate hazard complexity. Nature-based solutions (NbS), including mangroves, salt marshes, and other coastal ecosystems, offer sustai…
Identifying publicly perceived high temperature thresholds across Chinese cities using geotagged social media data
Sea-level rise and mental health among coastal communities
This is the first large-scale empirical study examining the impact of sea-level rise induced by climate change on mental health outcomes among coastal communities. The study focuses on Bangladesh, a country severely affected by salinity ingress, flood risks, and agricultural damage due to sea-level changes. Participants ( n = 1,200) randomly selected from three coastal regions each having high, moderate, or low vulnerability to sea-level rise wer…
Assessing the Influence of Land Cover and Climate Change Impacts on Runoff Patterns Using CA-ANN Model and CMIP6 Data
Dhaka city is experiencing rapid land cover changes, and the effects of climate change are highly visible. Investigating their combined influence on runoff patterns is vital for sustainable urban planning and water resources management. In this work, multi-date land cover classification was performed using a random forest (RF) algorithm. To validate accuracy of land cover classification, an assessment was conducted by employing kappa coefficient,…
Contrasting determinants of land surface temperature in three megacities
Megacities in tropical regions are among the urban centers most vulnerable to increasingly intense heatwaves. However, the complex interactions between urban characteristics and thermal environments are yet to be fully understood. Here, we investigated the relationship between urban characteristics and land surface temperature (LST) for three megacities in the tropical savannah climate zone, Chennai, Dhaka, and Kolkata. LST values were retrieved …
Insights into parents’ perceived worry before and during the Covid-19 pandemic in Australia
Parents' worry during the health pandemic was not triggered by the health risks factors but by the financial risk due to income change. The study depicts inequality in the impact of COVID-19 by ethnic background. Different policies and reported virus case numbers across states may have modified the behaviour of variables contributing to the geography of parents' worry. Exposure to stressors before the COVID-19 pandemic may have helped parents dev…
Geography of children’s worry during the Covid-19 pandemic
Children face many threats that have implications for their future. Empirical evidence on the effect of the COVID-19 pandemic on children's health and its variation across geography remains limited. Parents (n = 340) and their primary school-aged children in five Australian states completed anonymised online questionnaires early during the pandemic in mid-2020. COVID-19-related forms of worry were measured, and contributing variables were examine…
Projection of rainfall intensity-duration-frequency curves at ungauged location under climate change scenarios
Does children’s independent mobility matter? Insights into escorting practices in a developing country
Understanding children’s mobility behaviour and parents escorting practices are important to developing a children-friendly society. But only a few studies concerning children’s mobility behaviour have focused on developing countries. In this study, we attempted to develop an econometric model to understand escorting practices in a developing country. A multinomial logit (MNL) model is developed using travel diary data of 398 elementary school-go…
Exposure to fine particulate matter (PM2.5) during landscape fire events and the risk of cardiorespiratory emergency department attendances
Background Landscape fires (LFs) are the main source of elevated particulate matter (PM 2.5 ) in Australian cities and towns. This study examined the associations between daily exposure to fine PM 2.5 during LF events and daily emergency department attendances (EDA) for all causes, respiratory and cardiovascular outcomes. Methods Daily PM 2.5 was estimated using a model that included PM 2.5 measurements on the previous day, remotely sensed aeroso…
Geohazards Susceptibility Assessment along the Upper Indus Basin Using Four Machine Learning and Statistical Models
The China–Pakistan Economic Corridor (CPEC) project passes through the Karakoram Highway in northern Pakistan, which is one of the most hazardous regions of the world. The most common hazards in this region are landslides and debris flows, which result in loss of life and severe infrastructure damage every year. This study assessed geohazards (landslides and debris flows) and developed susceptibility maps by considering four standalone machine-le…
Spatiotemporal pattern of forest degradation and loss of ecosystem function associated with Rohingya influx
Violence in Rakhine State of Myanmar forcibly displaced nearly one million Rohingya. They took refuge, from August 25, 2017 to the time of writing, in Cox's Bazar – Teknaf Peninsula of Bangladesh. Initially, nearly 2,000 ha of forested lands had to be cleared to accommodate them in one of the most ecologically critical areas (ECA) in the Peninsula. To support Rohingyas livelihoods, fuelwood collection and illegal logging have become widespread si…
Diurnal and seasonal trends and associated determinants of surface urban heat islands in large Bangladesh cities
Many surface urban heat island (SUHI) studies have been conducted around the globe, however there is still a lack of information available regarding the intensity of SUHI (SUHII) in Bangladesh cities. This study focused on diurnal and seasonal SUHI variability, temporal trends and possible drivers in five major cities. Mean annual daytime SUHII ranged from 2.88 °C for Dhaka to 0.84 °C for Rajshahi, while nighttime intensity varied from 1.91 °C (C…
Surface urban heat island intensity in five major cities of Bangladesh
There is currently a lack of knowledge regarding the spatiotemporal variation of day and night surface urban heat island intensity (SUHII) in the major cities of Bangladesh. These cities have a large population base and generally lack the resources to deal with rapid urbanisation impacts, so any increase in urban temperature has the potential to affect people both directly (due to heatwave conditions) or indirectly (due to loss of livelihood). Ti…
Low impact development techniques to mitigate the impacts of climate-change-induced urban floods
Space-Time Patterns, Change, and Propagation of Covid-19 Risk Relative to the Intervention Scenarios in Bangladesh
The novel coronavirus (COVID-19) pandemic continues to be a significant public health threat worldwide, particularly in densely populated countries such as Bangladesh with inadequate health care facilities. While early detection and isolation were identified as important non-pharmaceutical intervention (NPI) measures for containing the disease spread, this may not have been pragmatically implementable in developing countries due to social and eco…
The effects of changing land use and flood hazard on poverty in coastal Bangladesh
WMO Assessment of Weather and Climate Mortality Extremes
A World Meteorological Organization (WMO) Commission for Climatology international panel was convened to examine and assess the available evidence associated with five weather-related mortality extremes: 1) lightning (indirect), 2) lightning (direct), 3) tropical cyclones, 4) tornadoes, and 5) hail. After recommending for acceptance of only events after 1873 (the formation of the predecessor of the WMO), the committee evaluated and accepted the f…
Recent Lightning-Related Fatalities and Injuries in Bangladesh
A database of lightning-related deaths and injuries in Bangladesh was developed from 1990 to mid-2016 from a variety of sources that contains a total of 5468 casualties, composed of 3086 fatalities and 2382 injuries. Spatial, temporal, and demographic aspects of these lightning casualties are evaluated in order to aid relevant entities in effective management of lightning-related meteorological hazards. The annual averages for Bangladesh are 114 …
Investigating potential mining induced water stress in Ghana’s north-west gold province
Tropical influenza and weather variability among children in an urban low-income population in Bangladesh
BACKGROUND: Influenza seasonality in the tropics is poorly understood and not as well documented as in temperate regions. In addition, low-income populations are considered highly vulnerable to such acute respiratory disease, owing to limited resources and overcrowding. Nonetheless, little is known about their actual disease burden for lack of data. We therefore investigated associations between tropical influenza incidence and weather variabilit…
Dynamics of land use/cover changes and the analysis of landscape fragmentation in Dhaka Metropolitan, Bangladesh
Land use and land cover change in Greater Dhaka, Bangladesh
Dynamics of land use/cover changes and the analysis of landscape fragmentation in Dhaka Metropolitan, Bangladesh
The effects of changing land use and flood hazard on poverty in coastal Bangladesh
Does children’s independent mobility matter? Insights into escorting practices in a developing country
Understanding children’s mobility behaviour and parents escorting practices are important to developing a children-friendly society. But only a few studies concerning children’s mobility behaviour have focused on developing countries. In this study, we attempted to develop an econometric model to understand escorting practices in a developing country. A multinomial logit (MNL) model is developed using travel diary data of 398 elementary school-go…
Exposure to fine particulate matter (PM2.5) during landscape fire events and the risk of cardiorespiratory emergency department attendances
Background Landscape fires (LFs) are the main source of elevated particulate matter (PM 2.5 ) in Australian cities and towns. This study examined the associations between daily exposure to fine PM 2.5 during LF events and daily emergency department attendances (EDA) for all causes, respiratory and cardiovascular outcomes. Methods Daily PM 2.5 was estimated using a model that included PM 2.5 measurements on the previous day, remotely sensed aeroso…
Investigating potential mining induced water stress in Ghana’s north-west gold province
Land use and land cover change in Greater Dhaka, Bangladesh
Dynamics of land use/cover changes and the analysis of landscape fragmentation in Dhaka Metropolitan, Bangladesh
Tropical influenza and weather variability among children in an urban low-income population in Bangladesh
BACKGROUND: Influenza seasonality in the tropics is poorly understood and not as well documented as in temperate regions. In addition, low-income populations are considered highly vulnerable to such acute respiratory disease, owing to limited resources and overcrowding. Nonetheless, little is known about their actual disease burden for lack of data. We therefore investigated associations between tropical influenza incidence and weather variabilit…
Investigating potential mining induced water stress in Ghana’s north-west gold province
WMO Assessment of Weather and Climate Mortality Extremes
A World Meteorological Organization (WMO) Commission for Climatology international panel was convened to examine and assess the available evidence associated with five weather-related mortality extremes: 1) lightning (indirect), 2) lightning (direct), 3) tropical cyclones, 4) tornadoes, and 5) hail. After recommending for acceptance of only events after 1873 (the formation of the predecessor of the WMO), the committee evaluated and accepted the f…
Recent Lightning-Related Fatalities and Injuries in Bangladesh
A database of lightning-related deaths and injuries in Bangladesh was developed from 1990 to mid-2016 from a variety of sources that contains a total of 5468 casualties, composed of 3086 fatalities and 2382 injuries. Spatial, temporal, and demographic aspects of these lightning casualties are evaluated in order to aid relevant entities in effective management of lightning-related meteorological hazards. The annual averages for Bangladesh are 114 …
Low impact development techniques to mitigate the impacts of climate-change-induced urban floods
Space-Time Patterns, Change, and Propagation of Covid-19 Risk Relative to the Intervention Scenarios in Bangladesh
The novel coronavirus (COVID-19) pandemic continues to be a significant public health threat worldwide, particularly in densely populated countries such as Bangladesh with inadequate health care facilities. While early detection and isolation were identified as important non-pharmaceutical intervention (NPI) measures for containing the disease spread, this may not have been pragmatically implementable in developing countries due to social and eco…
The effects of changing land use and flood hazard on poverty in coastal Bangladesh
Geohazards Susceptibility Assessment along the Upper Indus Basin Using Four Machine Learning and Statistical Models
The China–Pakistan Economic Corridor (CPEC) project passes through the Karakoram Highway in northern Pakistan, which is one of the most hazardous regions of the world. The most common hazards in this region are landslides and debris flows, which result in loss of life and severe infrastructure damage every year. This study assessed geohazards (landslides and debris flows) and developed susceptibility maps by considering four standalone machine-le…
Spatiotemporal pattern of forest degradation and loss of ecosystem function associated with Rohingya influx
Violence in Rakhine State of Myanmar forcibly displaced nearly one million Rohingya. They took refuge, from August 25, 2017 to the time of writing, in Cox's Bazar – Teknaf Peninsula of Bangladesh. Initially, nearly 2,000 ha of forested lands had to be cleared to accommodate them in one of the most ecologically critical areas (ECA) in the Peninsula. To support Rohingyas livelihoods, fuelwood collection and illegal logging have become widespread si…
Diurnal and seasonal trends and associated determinants of surface urban heat islands in large Bangladesh cities
Many surface urban heat island (SUHI) studies have been conducted around the globe, however there is still a lack of information available regarding the intensity of SUHI (SUHII) in Bangladesh cities. This study focused on diurnal and seasonal SUHI variability, temporal trends and possible drivers in five major cities. Mean annual daytime SUHII ranged from 2.88 °C for Dhaka to 0.84 °C for Rajshahi, while nighttime intensity varied from 1.91 °C (C…
Surface urban heat island intensity in five major cities of Bangladesh
There is currently a lack of knowledge regarding the spatiotemporal variation of day and night surface urban heat island intensity (SUHII) in the major cities of Bangladesh. These cities have a large population base and generally lack the resources to deal with rapid urbanisation impacts, so any increase in urban temperature has the potential to affect people both directly (due to heatwave conditions) or indirectly (due to loss of livelihood). Ti…
Projection of rainfall intensity-duration-frequency curves at ungauged location under climate change scenarios
Does children’s independent mobility matter? Insights into escorting practices in a developing country
Understanding children’s mobility behaviour and parents escorting practices are important to developing a children-friendly society. But only a few studies concerning children’s mobility behaviour have focused on developing countries. In this study, we attempted to develop an econometric model to understand escorting practices in a developing country. A multinomial logit (MNL) model is developed using travel diary data of 398 elementary school-go…
Exposure to fine particulate matter (PM2.5) during landscape fire events and the risk of cardiorespiratory emergency department attendances
Background Landscape fires (LFs) are the main source of elevated particulate matter (PM 2.5 ) in Australian cities and towns. This study examined the associations between daily exposure to fine PM 2.5 during LF events and daily emergency department attendances (EDA) for all causes, respiratory and cardiovascular outcomes. Methods Daily PM 2.5 was estimated using a model that included PM 2.5 measurements on the previous day, remotely sensed aeroso…
Assessing the Influence of Land Cover and Climate Change Impacts on Runoff Patterns Using CA-ANN Model and CMIP6 Data
Dhaka city is experiencing rapid land cover changes, and the effects of climate change are highly visible. Investigating their combined influence on runoff patterns is vital for sustainable urban planning and water resources management. In this work, multi-date land cover classification was performed using a random forest (RF) algorithm. To validate accuracy of land cover classification, an assessment was conducted by employing kappa coefficient,…
Contrasting determinants of land surface temperature in three megacities
Megacities in tropical regions are among the urban centers most vulnerable to increasingly intense heatwaves. However, the complex interactions between urban characteristics and thermal environments are yet to be fully understood. Here, we investigated the relationship between urban characteristics and land surface temperature (LST) for three megacities in the tropical savannah climate zone, Chennai, Dhaka, and Kolkata. LST values were retrieved …
Insights into parents’ perceived worry before and during the Covid-19 pandemic in Australia
Parents' worry during the health pandemic was not triggered by the health risks factors but by the financial risk due to income change. The study depicts inequality in the impact of COVID-19 by ethnic background. Different policies and reported virus case numbers across states may have modified the behaviour of variables contributing to the geography of parents' worry. Exposure to stressors before the COVID-19 pandemic may have helped parents dev…
Geography of children’s worry during the Covid-19 pandemic
Children face many threats that have implications for their future. Empirical evidence on the effect of the COVID-19 pandemic on children's health and its variation across geography remains limited. Parents (n = 340) and their primary school-aged children in five Australian states completed anonymised online questionnaires early during the pandemic in mid-2020. COVID-19-related forms of worry were measured, and contributing variables were examine…
Sea-level rise and mental health among coastal communities
This is the first large-scale empirical study examining the impact of sea-level rise induced by climate change on mental health outcomes among coastal communities. The study focuses on Bangladesh, a country severely affected by salinity ingress, flood risks, and agricultural damage due to sea-level changes. Participants ( n = 1,200) randomly selected from three coastal regions each having high, moderate, or low vulnerability to sea-level rise wer…
Identifying publicly perceived high temperature thresholds across Chinese cities using geotagged social media data
Spatio‐Temporal Changes of Land Use Carbon Emission/Absorption and Its Future Trend in Important Ecological Functional Areas—A Case Study in the Yellow River Basin
This study proposes a novel perspective for calculating construction land carbon emissions based on functional zoning classification. Focusing on the Yellow River Basin (YRB) and utilizing Point of Interest (POI) data, we classified construction land into eight distinct functional types based on the China Land Cover Dataset (CLCD) from 2012 to 2022. Integrating this functional classification system with data from the China Carbon Accounting Datab…
Towards nature-positive engineering
Coastal and deltaic regions are highly vulnerable to hydrometeorological hazards such as storms, flooding, and extreme temperatures—risks that are intensifying under climate change. While hard engineering structures (e.g. levees, seawalls) remain widely used, they can be costly, ecologically disruptive, and may exacerbate hazard complexity. Nature-based solutions (NbS), including mangroves, salt marshes, and other coastal ecosystems, offer sustai…
Geography (18 obras) · Environmental Science (8 obras) · Demography (7 obras) · Land use (7 obras) · Medicine (7 obras) · Climate change (6 obras) · Environmental health (6 obras) · Land cover (6 obras) · Land Use and Ecosystem Services (6 obras) · Meteorology (6 obras)