Article
Geosciences, Multidisciplinary
Nirmal Kumar, Sudhir Kumar Singh
Summary: Soil erosion rate in Ghaghara river basin was estimated using different digital elevation models (DEMs), with RUSLE showing rates varying from 4.35 to 21.39 ton/ha/year. Water holding capacity varied between clay_loam soil and glacier areas. Hypsometry analysis indicated sub-basins transitioning from young to mature due to erosion, with prioritized conservation measures needed in upper and middle basin areas.
Article
Geography, Physical
Shahram Bahrami
Summary: This study analyzed the relationship between the confluence angle of drainage and tectonic activity as well as the morphometric characteristics of drainage basins. The results showed that the mean confluence angle increases with the order of stream junctions. Basins with higher elongation, a larger ratio of first-order streams to the total number of streams, and a higher density of drainage's hierarchical anomaly have higher confluence angles.
Article
Engineering, Civil
Hasan Ozdemir, Abdullah Akbas
Summary: This study aims to reveal the flood generation potential of river basins and analyze the results of basin morphometry and hydrodynamic modeling. The results show that the Suleyman subbasin has the highest flood generation potential, followed by the Alpi subbasin, and then the Ulus upstream and Eldes subbasins.
JOURNAL OF HYDROLOGY
(2023)
Article
Geosciences, Multidisciplinary
Bruno Silva, Daniel H. Souza, Silvio T. Hiruma, Marli C. Siqueira-Ribeiro, George L. Luvizotto, Ulrich A. Glasmacher, Peter C. Hackspacher
Summary: This paper investigates the origin of the topography and relief of southern Africa, as well as the interaction between river networks and rock uplift and erosion. New data and morphometric analysis suggest that the landscape of the southwestern Angolan margin is primarily formed by the dissection of rocks, with higher fluvial incision rates for coastal rivers compared to inland rivers.
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Ying Song, Jianye Ren, Keyu Liu, Dawei Lyu, Xinjie Feng, Yuan Liu, Andrei Stepashko
Summary: By studying the sedimentary sequences in the Songliao Basin, China, we can understand the evolution of this extensional basin from the syn-rift to subsequent post-rift stages. During this transition, the sediment dispersal pattern shifted from a local intraregional pattern to a transcontinental pattern, resulting in a complex mixture of sediment sources. These findings are important for understanding the evolution of other continental rift basins.
GEOSCIENCE FRONTIERS
(2022)
Article
Environmental Sciences
Roshila Moodley, Nomfundo T. Mahlangeni, Poovendhree Reddy
Summary: The study found elevated levels of arsenic and chromium in fish and seawater in the South Durban Industrial Basin (SDIB), but determined that there are currently no significant health risks for consumers. However, due to higher levels of arsenic, it is recommended to consume fish from the SDIB in moderation or avoid those with high arsenic content to prevent long-term toxic effects.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Geography, Physical
Akhtar Alam, Bayes Ahmed, Peter Sammonds
Summary: This study examines the relative flash flood susceptibility of thirteen watersheds in southeastern Bangladesh using 18 morphometric parameters. Through spatial analysis algorithms and topographic indices, the combined effects of morphology and topography on flash flood susceptibility are investigated within selected watersheds.
QUATERNARY INTERNATIONAL
(2021)
Article
Engineering, Civil
Redvan Ghasemlounia, Mustafa Utlu
Summary: Flood events in the Hars River Basin in the Eastern Black Sea Region of Turkey were discussed based on drainage basin morphometry using three different methods. Results showed varying flood priorities based on morphometric parameters, and the accuracy of priorities obtained using the RPRM and PCA methods were higher than the MA method. Common sub-basins with similar flood risk were compared with recorded flood maps of Turkey, validating the results obtained from the different techniques.
JOURNAL OF HYDROLOGY
(2021)
Article
Anthropology
Bongumenzi Nxumalo
Summary: This article explores the social and technical decisions in ceramic production among the Zulu peoples in southern Africa, focusing on production stages, design, style, and functional components. The study reveals that the social and operational attributes can be utilized as potential sources to bridge the gaps between the technology and style approaches in the archaeological study of Iron Age ceramics.
AFRICAN ARCHAEOLOGICAL REVIEW
(2023)
Article
Green & Sustainable Science & Technology
Subha Roy, Souvik Das, Somasis Sengupta
Summary: This paper examines the erosion susceptibility of the Mayurakshi Drainage System in Eastern India using morphometric attributes and the Analytical Hierarchy Process (AHP). The study uses Principal Component Analysis (PCA) to determine the relative importance and explained variance of different parameters. The results show that the Mayurakshi Basin and the upper reach of the Dwarka River have significantly higher erosion susceptibility due to low-lying hills, while other areas have relatively modest erosion susceptibility.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Geography
Alberto Bosino, Alice Bernini, Greg A. Botha, Greta Bonacina, Luisa Pellegrini, Adel Omran, Volker Hochschild, Christian Sommer, Michael Maerker
Summary: This study presents a geomorphological map of the upper Mkhomazi River basin in South Africa, focusing on erosional landforms and their relation to colluvial deposits. The study aims to understand the spatial distribution of these features and proposes a stratigraphic correlation of colluvial deposits and buried palaeosol profiles at a local and regional scale.
Article
Geosciences, Multidisciplinary
Hehe Chen, Lesli J. Wood, Robert L. Gawthorpe
Summary: Morphological scaling relationships between source-to-sink segments have been explored in modern and deep-time systems, with drainage outlet spacing, cross-sectional area, and fan area all providing key constraints on source area dimensions and sediment dispersal dynamics. The integration of core, well-logs, and seismic data across the Dampier Sub-basin in Australia has enabled a comprehensive study of deep-time source-to-sink systems in a late syn-rift succession.
Article
Water Resources
Sepideh Mofidi, Ali Mohammadi Torkashvand, Abolfazl Moeini, Ebrahim Pazira, Hassan Ahmadi
Summary: This study investigates the relationship between stream changes and morphometric characteristics using fractal geometry, aiming to find a fast, low-cost, and accurate method for stream network management. The results show significant relationships between fractal dimensions and basin morphometric features, indicating that fractal models can be used for quick and precise decision-making in stream management.
INTERNATIONAL JOURNAL OF RIVER BASIN MANAGEMENT
(2023)
Article
Education & Educational Research
Dayana Serra Maciel, Quesia Duarte da Silva, Danyella Vale Barros Franca
Summary: This study aimed to understand the physiography and hydrology of the high course of the hydrographic basin of Santo Antonio, Ilha do Maranhao through morphometric analysis, providing a basis for monitoring the basin and analyzing areas subject to floods in the future.
Article
Environmental Sciences
Motilal Ghimire, Teiji Watanabe, Ian S. Evans
Summary: This study examines the geomorphology of three areas in the tectonically active Siwalik Hills, Nepal, using morphometric variables. The study found that rotated principal components were remarkably consistent between the three areas and identified eight most important morphometric variables defining these components. Shallow and steep basins are predominant in all three areas.
PHYSICAL GEOGRAPHY
(2023)
Article
Geography, Physical
A. Securo, C. Del Gobbo, L. Rettig, S. Pillon, A. De Luca, D. Fontana, E. Benedetti Fasil, R. R. Colucci
Summary: Small glaciers in temperate mountain regions have experienced significant reduction and unprecedented melt rates in recent years. Some glaciers have transitioned from clean ice to debris-covered or even rock glaciers. This study examines the surface elevation change of the Popera Alto glacier in the Sesto Dolomites using LiDAR and Structure from Motion surveys, and analyzes its evolution in terms of surface cover and geomorphic processes. The glacier has lost an average of 0.35 m water equivalent per year over the past 16 years, with active modification of its surface cover by geomorphic processes. The role of debris and local topography feedback has allowed the resilience of the glacier, leading to a marked difference between the current environmental equilibrium line altitude (envELA) and the effective ELA (effELA) of the glacier.
Article
Geography, Physical
Zhenzhen Yan, Yaolin Shi, Lili Kang, Xiangtao Fan
Summary: This study proposes a quantitative regional deformation model based on global positioning system (GPS) data to quantitatively analyze the morphological evolution of rivers in the Three Rivers Region. It finds that tectonic deformation phases significantly control regional landscape development and drainage features.
Article
Geography, Physical
Said Mukhtar Ahmad, Nitheshnirmal Sadhasivam, Mona Lisa, Luigi Lombardo, Mustafa Kemal Emil, Amira Zaki, Cees J. Van Westen, Islam Fadel, Hakan Tanyas
Summary: In this study, we investigated a large slow-moving landslide in Northern Pakistan, using Interferometric Synthetic Aperture Radar (InSAR) analysis. Our results showed that the crown of the landslide is moving faster than the surrounding regions, while the footslope experienced high deformations. We discussed the possible roles of meteorologic and anthropogenic factors in causing these deformations.
Article
Geography, Physical
Shuang Bian, Xibin Tan, Yiduo Liu, Suoya Fan, Junfeng Gong, Chao Zhou, Feng Shi, Michael A. Murphy
Summary: The Yarlung River's drainage divide is primarily moving north due to variations in precipitation across the Himalayas. The Gangdese drainage divide shows predominantly northward and southward migration, controlled by base-level rise and downstream influences. The presence of north-trending rifts separates the drainage divides into five zones, each with a distinct migration pattern.
Article
Geography, Physical
Joon-Young Park, Seok Yoon, Deuk-Hwan Lee, Seung-Rae Lee, Hwan-Hui Lim
Summary: This study developed a multiple-regression model to estimate site-specific average growth rates of debris flow events. The proposed model was validated through a case study and showed reasonable predictions of debris flow velocities and heights.
Article
Geography, Physical
Nicholas Reilly Mccarroll, Arnaud Temme
Summary: New geochronological data from hillslope boulder armor in the Flint Hills reveal the rates and timing of lateral retreat in the landscape. Surfaces of limestone boulders dating back to the Pleistocene era were found, and the ages of the hillslope armor increased with distance from the limestone bench. The estimated rate of lateral retreat in this landscape is 0.02 mm/yr.
Article
Geography, Physical
Xinbo Yao, Yuntao Tian
Summary: By studying the Longmenshan-Minshan drainage divide, we found that it has reached a dynamic steady state, indicating a balance between erosion and rock uplift. This study also reveals the process of formation and evolution of the divide and raises questions about the effectiveness of divide migration metrics.
Article
Geography, Physical
Junhui Yu, Pin Yan, Yanlin Wang, Guangjian Zhong, Changliang Chen
Summary: The seafloor mounds in the Chaoshan Depression of the South China Sea are identified as mud volcanoes, with fluids coming from underlying mud-fluid diapirs. The hydrocarbon gases feeding the mud volcanoes and diapirs are reasoned to originate from deep Mesozoic source rocks, indicating significant Mesozoic hydrocarbon potential in the Chaoshan Depression.
Article
Geography, Physical
Marius Huber, Luc Scholtes, Jerome Lave
Summary: This paper investigates the relationships between hillslope stability and fabric anisotropy of brittle rock materials and the implications for landscape shaping. It explores the different stability modes and movement characteristics of anisotropic materials, and demonstrates the significant control of material anisotropy on landscape shaping.
Article
Geography, Physical
Shubhra Sharma, Anil D. Shukla
Summary: The study investigates the relationship between glacial dynamics and lake sedimentation during the mid-Holocene climate variability in the Southern Zanskar ranges. It utilizes geomorphological disposition, elemental geochemistry, and optical chronology of relict lake sediment to reconstruct the pattern of minor glacier responses to climate variability. The results indicate six centennial to millennial-scale climatic phases, with warmer phases represented by decreased mineralogical fine grain flux and increased coarse grain flux. The study highlights the potential of relict lake sediment and para/peri-glacial landforms in understanding glacial dynamics and climate change during the Holocene.
Article
Geography, Physical
Jean-Francois Bernier, Sydney W. Meury, Patrick Lajeunesse
Summary: In this study, an approach combining various data and observation methods was proposed to improve the monitoring of landfast ice dynamics and its geomorphic impact on sedimentary systems. The results demonstrate the ability of the approach to accurately measure interannual variations in landfast ice and constrain geomorphic changes. Additionally, the study found a strong relationship between the severity of freezing seasons and the response of landfast ice to hydrometeorological events, with different geomorphic responses observed under different winter conditions.
Article
Geography, Physical
Heping Shu, Fanyu Zhang
Summary: This study investigates the relationship between susceptibility of soil-water hazards and human activities, geoheritage sites in the Loess Plateau, China. Landslide and gully erosion susceptibility were obtained using gradient boosting and support vector machines, and a hazard matrix was formed to couple landslide and gully erosion susceptibility. The study found different trends in the magnification times of soil-water hazards chain under different scenarios.
Article
Geography, Physical
Guangqiang Qian, Zhuanling Yang, Xuegang Xing, Zhibao Dong, Youyuan Guo
Summary: Granule ripples are aeolian landforms armored against erosion by coarse grains. This study investigates their seasonal morphological evolution and migration in the Sanlongsha Dune Field. The findings show that wind events, especially those exceeding the threshold velocities of coarse grains, significantly influence the morphodynamics of granule ripples. The study highlights the importance of considering the reptation and saltation of coarse grains in future research on granule ripples.