Article
Environmental Sciences
Enchuan Qiao, Chao Ma, Hao Zhang, Zhenzhen Cui, Chenglong Zhang
Summary: This study analyzed the short- and long-term radiometric trends of RadCalNet sites using bottom-of-atmosphere (BOA) data, and verified the trends revealed by the top-of-atmosphere (TOA) data from Landsat 7, 8, and Sentinel-2. The results showed significant differences between BOA and TOA reflectance, and frequent significant and abrupt changes in the radiometric trends of PICS sites. It indicates that RadCalNet remains a reliable tool for vicarious calibration, but the temporal stability should be considered for radiometric performance monitoring of sensors.
Article
Green & Sustainable Science & Technology
Lingling Bin, Weichao Yang, Kui Xu
Summary: This study explores the main driving force behind flash floods on Hainan Island by analyzing 14 factors from three categories: natural, social, and rainfall factors. The results show that natural factors such as elevation and soil have a significant impact on flash floods in both periods, and their influence is increasing. Short-term heavy rainfall is also becoming more serious in causing flash floods. Additionally, although the driving force from social factors is small, the impact of population density on flash floods is significantly increasing.
Article
Meteorology & Atmospheric Sciences
Zekai Sen
Summary: In this paper, a new trend methodology is proposed based on the characteristics of crossings along any given straight line within the given time series. It does not require any restrictive assumptions and provides a series of trends at different levels within the variation range of the time series. The methodology is compared with a classical trend determination method and applied to data from the Danube River and Turkey.
THEORETICAL AND APPLIED CLIMATOLOGY
(2022)
Article
Environmental Sciences
Soghra Andaryani, Vahid Nourani, Farnaz Ershadfath, Fatemeh Hashemi, Ali Torabi Haghighi, Saskia Keesstra
Summary: This study explores the use of a vegetation cover index as a pollution warning tool in gold mining areas in Northwest Iran. The study analyzed Landsat images to extract normalized difference vegetation index (NDVI) maps and calculate vegetation cover in different zones. The study also investigated trends in vegetation cover and assessed the correlation with climate parameters. Results show that vegetation cover has been significantly reduced in the mining activities areas, but an overall upward trend is observed in the downstream area with no chemical leakage. The study demonstrates the potential of using NDVI and statistical methods to quantify the effects of human activities on surface biophysical characteristics.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Edris Alam, Al-Ekram Elahee Hridoy, Shekh Md. Shajid Hasan Tusher, Abu Reza Md. Towfiqul Islam, Md Kamrul Islam
Summary: Bangladesh is ranked as one of the countries most affected by climate change, particularly in terms of agricultural crop sector. This study identifies significant spatial and temporal changes in temperature and rainfall in Bangladesh and their implications for rice yield. The results show increasing trends in temperature and rainfall, with significant impacts on rice crop yields.
Article
Meteorology & Atmospheric Sciences
Zulfaqar Saadi, Zaher Mundher Yaseen, Aitazaz Ahsan Farooque, Nur Athirah Mohamad, Mohd Khairul Idlan Muhammad, Zafar Iqbal
Summary: This study aims to reveal the spatio-temporal trend in extreme rainfall and temperature in Sarawak peatland due to climate change. The Modified Mann-Kendall test was used to analyze trend and confirm the impact of large scale climate events. The study provides essential insights into the behavior of different extreme climate variables and their potential impact on the peatland area susceptible to flood and fire.
WEATHER AND CLIMATE EXTREMES
(2023)
Article
Meteorology & Atmospheric Sciences
Azfar Hussain, Jianhua Cao, Shaukat Ali, Sher Muhammad, Waheed Ullah, Ishtiaq Hussain, Mobeen Akhtar, Xiuqin Wu, Yinghui Guan, Jinxing Zhou
Summary: Long-term precipitation monitoring is important for water resource management and disaster prevention. This study assessed the trends in seasonal and annual precipitation in Pakistan from 1960 to 2016 and found that, overall, there was an increasing trend in precipitation. However, there were also regional and seasonal variations in the trends, with some areas experiencing a decrease in precipitation.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Engineering, Environmental
Veysi Kartal
Summary: Water is crucial for human life, and understanding historical changes in meteorological data is essential for water management. This study evaluated drought characteristics in Elazig, Turkey using various drought indices, and found an increase in dry periods and a downward trend in precipitation, with an upward trend in temperature and evaporation.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Neha Khadka, Cibele Teixeira Pinto, Larry Leigh
Summary: This study evaluated the temporal stability of Pseudo-Invariant Calibration Sites (PICS) and found statistically significant trends and abrupt changes at all sites, but the magnitude of the changes was small, indicating that these sites are not substantially changing over time.
Article
Geosciences, Multidisciplinary
Agraw Ali Beshir, Jaemin Song
Summary: Rapid and inevitable urbanization in developing countries increases urban flooding risks. This study used GIS, remote sensing, and statistical analysis to investigate the impact of urban development patterns and rainfall trends on urban flooding risk in the capital city of Ethiopia.
Article
Meteorology & Atmospheric Sciences
Tugce Hirca, Gokcen Eryilmaz Turkkan, Majid Niazkar
Summary: This study examines historical variations of hydroclimatic variables in Eastern Black Sea Basin (EBSB) in Turkey. The Mann-Kendall (MK) and Innovative Polygon Trend Analysis (IPTA) methods were utilized to analyze 56-year precipitation data collected at 8 measuring stations. IPTA showed to be more sensitive in trend detection than MK, identifying trends in more months and stations.
THEORETICAL AND APPLIED CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Aung Kyaw Kyaw, Mohammed Magdy Hamed, Shamsuddin Shahid
Summary: This study investigated the spatial patterns of changes in human thermal stress levels in South Asia using the Universal Thermal Climate Index (UTCI). The findings revealed that Bangladesh experiences the highest mean UTCI range, while Afghanistan has the lowest among the South Asian nations. Trend analysis indicated an increase in mean and maximum UTCI levels across the western part of South Asia, particularly the region bordering India and Pakistan.
ATMOSPHERIC RESEARCH
(2023)
Article
Environmental Sciences
A. Bharath, Ramesh Maddamsetty, M. Manjunatha, T. Reshma
Summary: The study aims to determine the variability and trend in rainfall in Karnataka state, India. The findings reveal increased annual and seasonal rainfall in the study area, except for a significant decline during the post-monsoon season.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Plant Sciences
Xuelin Xie, Xinye Zhang, Jingfang Shen, Kebing Du
Summary: This study establishes a model to predict the flood resistance of poplar using machine learning algorithms and evaluates its performance. The results show that both random forest regression and support vector regression have high precision in predicting poplar's flood resistance.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Environmental Sciences
Tommaso Caloiero, Roberto Coscarelli, Gaetano Pellicone
Summary: This study analyzed rainfall data in the southern Italy's Calabria region and found decreasing trends in annual and winter-autumn rainfall, as well as an increasing trend in summer rainfall.
Article
Geosciences, Multidisciplinary
Getaneh Addis Tessema, Jan van der Borg, Amare Sewnet Minale, Anton Van Rompaey, Enyew Adgo, Jan Nyssen, Kerebih Asrese, Steven Van Passel, Jean Poesen
Summary: Geotourism focuses on geological features with cultural and biodiversity significance. This study inventory and assess potential geosites in the eastern and southeastern Lake Tana region of Ethiopia for geotourism development. The research identifies 61 geosites with 17 viewpoints, including waterfalls, a lake with islands, cave churches, and volcanic cones.
Article
Development Studies
Samuel Tumwesigye, Matthias Vanmaercke, Lisa-Marie Hemerijckx, Alfonse Opio, Jean Poesen, Ronald Twongyirwe, Anton Van Rompaey
Summary: Sub-Saharan Africa is experiencing rapid urbanization, but this process is not always sustainable. Few studies have examined the importance of secondary towns in this urbanization process. By analyzing the population growth patterns in Uganda, it is found that secondary towns with over 50,000 inhabitants have the highest population growth rates, suggesting the need for investments in their socio-economic infrastructure.
DEVELOPMENT SOUTHERN AFRICA
(2023)
Article
Food Science & Technology
Lisa-Marie Hemerijckx, Katarzyna Janusz, Sam Van Emelen, Samuel Tumwesigye, Jac Davis, Shuaib Lwasa, Anton Van Rompaey
Summary: Cities in sub-Saharan Africa face challenges in terms of urban food accessibility due to rapid urban sprawl and socioeconomic segregation. This study explores the relationship between the dimensions of food access and food insecurity in the growing Greater Kampala Metropolitan Area in Uganda, taking into account different socioeconomic groups.
Article
Development Studies
Jac Davis, Nyasha Magadzire, Lisa-Marie Hemerijckx, Tijs Maes, Darryn Durno, Nobelusi Kenyana, Shuaib Lwasa, Anton Van Rompaey, Peter H. Verburg, Julian May
Summary: Research shows significant variations in hunger and dietary quality within urban neighborhoods in a South African city. Factors such as food transportation technologies, consumer technologies, and informal food assistance from neighbors are found to be protective against hunger and poor quality diets, after controlling for income and gender. Precision estimates of food insecurity are needed to target interventions towards neighborhoods and households with the greatest need.
Article
Environmental Sciences
Safae Ijlil, Ali Essahlaoui, Meriame Mohajane, Narjisse Essahlaoui, El Mostafa Mili, Anton Van Rompaey
Summary: Groundwater pollution poses a severe threat to the environment and humanity, and mitigation strategies are urgently needed. A study in Morocco developed new hybrid/ensemble machine learning models to assess groundwater pollution. The results showed that these models outperformed individual machine learning algorithms.
Article
Environmental Sciences
Anas El Ouali, Allal Roubil, Abderrahim Lahrach, Jacques Mudry, Tibari El Ghali, Mohamed Qurtobi, Mohammed El Hafyani, Abdennabi Alitane, Abdellah El Hmaidi, Ali Essahlaoui, Anton Van Rompaey
Summary: This study investigates the isotopic characteristics of rainfall in the Ziz watershed in Errachidia region, southeastern Morocco, and establishes the local meteoric water line and altitude gradient. The findings are valuable for researchers and water resource managers in identifying groundwater recharge areas, analyzing surface water-groundwater interactions, and addressing other hydrological issues.
Article
Green & Sustainable Science & Technology
Getaneh Addis Tessema, Jan van der Borg, Anton Van Rompaey, Steven Van Passel, Enyew Adgo, Amare Sewnet Minale, Kerebih Asrese, Amaury Frankl, Jean Poesen
Summary: This study segmented tourists to geosites in the southern Lake Tana region in Ethiopia based on the benefits sought and identified four distinct segments: Activity-Nature Lovers, Culture Lovers, Nature-Culture Lovers, and Want-It-Alls. These segments differed in their demographic, trip, and behavioral characteristics, highlighting the importance of customizing geotourism product development and marketing strategies based on the needs and characteristics of each market segment.
Article
Environmental Sciences
Zhuoxun Li, Liangxu Wang, Ju Shen, Qiang Ma, Shiqiang Du
Summary: Flood vulnerability is crucial for understanding and assessing flood risk. This study developed a new research framework using big data and online data to assess urban vulnerability based on vulnerability curves. The framework can identify vulnerability patterns and provide clues for flood risk assessment.
Article
Green & Sustainable Science & Technology
Abdennabi Alitane, Ali Essahlaoui, Ann Van Griensven, Estifanos Addisu Yimer, Narjisse Essahlaoui, Meriame Mohajane, Celray James Chawanda, Anton Van Rompaey
Summary: Water resources are crucial for economic prosperity, food security, and human habitats, but their deterioration and inadequate use have significant impacts on the environment and humans. This study used a hydrologic model to simulate and quantify water balance components in the R'Dom watershed in Morocco, revealing the distribution of precipitation, evapotranspiration, surface runoff, and groundwater recharge.
Article
Forestry
Beatriz Gobbi, Anton Van Rompaey, Nestor Ignacio Gasparri, Veerle Vanacker
Summary: This study evaluated the extent to which information on forest degradation can be derived using UAV-SfM techniques. The research focused on the Dry Chaco ecosystem in Argentina, where anthropogenic disturbances have had a long-term impact on subtropical broadleaf dry forests. The results showed that objective criteria derived from UAV-SfM 3D canopy models can effectively differentiate forests in good condition from those that have undergone various levels of degradation.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Geography
Amanuel Tadesse Weldegebriel, Meron Tekalign, Anton Van Rompaey
Summary: The urbanisation of Addis Ababa is a complex process influenced by various social and spatial factors over time. This study used a theoretical framework and satellite images from 1974, 1991, and 2020 to analyze the urbanisation patterns. The role of elites, foreign influences, and technology were found to be significant in explaining the urban changes during different regimes. The results show a significant expansion of the city, particularly during the contemporary globalised regime.
Article
Environmental Studies
Lisa-Marie Hemerijckx, Gloria Nsangi Nakyagaba, Hakimu Sseviiri, Katarzyna Janusz, Michelle Eichinger, Shuaib Lwasa, Julian May, Peter H. Verburg, Anton Van Rompaey
Summary: Due to rapid urbanization, the food system in sub-Saharan African cities is facing increasing pressure. In this paper, we use the concept of foodshed to analyze the spatial extent of food provision for consumers of different socio-economic status in Kampala, Uganda. Based on surveys with households and food vendors, we map the foodshed by identifying where consumers obtain their food and its origin. The results show that 50% of the food consumed in the city comes from within a 120 km radius of Kampala, including 10% from within the city itself. At present, urban agriculture is twice as important as international imports for urban food supply. Higher-income urban dwellers have a more localized foodshed due to their involvement in urban agriculture, while lower-income newcomers heavily rely on retailers sourcing food from rural Uganda.
NPJ URBAN SUSTAINABILITY
(2023)
Article
Geosciences, Multidisciplinary
Hoang Thi Thu Huong, Dang Kinh Bac, Anton Van Rompaey
Summary: This paper presents a comprehensive assessment of tourism potential in the coastal region of Vietnam based on attractiveness, accessibility, tourism service quality, and environmental quality & safety. The results indicate that provinces in the South-Central region have the highest potential for coastal tourism development, while other regions also have promising opportunities. Additionally, the study highlights that tourism revenue relies more on external factors rather than internal tourism resources.
VIETNAM JOURNAL OF EARTH SCIENCES
(2022)
Article
Environmental Studies
Amanuel Weldegebriel, Engdawork Assefa, Meron Tekalign, Anton Van Rompaey
Summary: The study reveals that in Addis Ababa, Ethiopia, slums in the urban center have been replaced by high-end commercial buildings, while low-cost residential condominiums have expanded in the urban periphery. Urban land supply and land prices are found to be determinant factors for urban land use orientations, pushing low-end groups towards the periphery.
Article
Environmental Studies
Abdennabi Alitane, Ali Essahlaoui, Mohammed El Hafyani, Abdellah El Hmaidi, Anas El Ouali, Amina Kassou, Yassine El Yousfi, Ann van Griensven, Celray James Chawanda, Anton Van Rompaey
Summary: This study quantifies and predicts soil erosion rates in the R'Dom watershed in Morocco using remote sensing and GIS tools. The results show that agricultural lands and bare lands are most affected by soil erosion, but the overall erosion rate is decreasing.
