Đinh Văn Duy
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View article: Water Hyacinth Geotextiles as a Nature-Based Solution for Riverbank Protection in the Vietnamese Mekong Delta
Water Hyacinth Geotextiles as a Nature-Based Solution for Riverbank Protection in the Vietnamese Mekong Delta Open
Riverbank erosion in the Vietnamese Mekong Delta (VMD) poses a serious threat to agricultural lands, infrastructure, and local communities. Conventional protective measures, such as synthetic geotextiles and concrete revetments, are often …
View article: Phân tích diễn biến đường bờ sông Cần Thơ bằng công nghệ ảnh viễn thám
Phân tích diễn biến đường bờ sông Cần Thơ bằng công nghệ ảnh viễn thám Open
Nghiên cứu này phân tích diễn biến đường bờ sông Cần Thơ trong giai đoạn 2010 – 2025, tập trung vào hai khu vực bờ Nam và bờ Bắc. Dữ liệu đường bờ được xử lý và tính toán thông qua chỉ số tốc độ thay đổi đường bờ trung bình hàng năm (LRR),…
View article: From River to Sea: Tracking Plastic Waste Transport via the Hau River, Mekong Delta, Vietnam
From River to Sea: Tracking Plastic Waste Transport via the Hau River, Mekong Delta, Vietnam Open
Plastic pollution in river systems is a growing concern, especially in the Mekong Delta, where complex tidal dynamics facilitate downstream transport of plastic waste into the marine environment. This study assessed the density, compositio…
View article: Assessing River Corridor Stability and Erosion Dynamics in the Mekong Delta: Implications for Sustainable Management
Assessing River Corridor Stability and Erosion Dynamics in the Mekong Delta: Implications for Sustainable Management Open
This study assessed riverbank erosion and stability along the Mekong and Bassac Rivers to propose safe river corridors and mitigate erosion risks in the Mekong Delta. Using Landsat imagery (2000–2023), field surveys, and numerical simulati…
View article: Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam
Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam Open
The Vietnamese Mekong Delta (VMD) faces increasing challenges due to upstream hydrological fluctuations and climate change, necessitating optimized water management strategies. Sluice gates play a critical role in regulating water levels, …
View article: Interrelationship between Wall and Beach Erosion in Loc An, Vietnam: Remote Sensing and Numerical Modeling Approaches
Interrelationship between Wall and Beach Erosion in Loc An, Vietnam: Remote Sensing and Numerical Modeling Approaches Open
Beach erosion and coastal protection are complex and interconnected phenomena that have a substantial impact on coastal environments worldwide. Among the various coastal protection measures, seawalls have been widely implemented to mitigat…
View article: Coastal Erosion Dynamics and Protective Measures in the Vietnamese Mekong Delta
Coastal Erosion Dynamics and Protective Measures in the Vietnamese Mekong Delta Open
The dynamic shifts in shorelines due to erosion and deposition have become a significant challenge in coastal zone management, particularly in the context of climate change and rising sea levels. This paper evaluates the shoreline protecti…
View article: Modelling and predicting annual rainfall over the Vietnamese Mekong Delta (VMD) using SARIMA
Modelling and predicting annual rainfall over the Vietnamese Mekong Delta (VMD) using SARIMA Open
Climate and rainfall are extremely non-linear and complicated phenomena, which require numerical modelling to simulate for accurate prediction. We obtained local historical rainfall data for 12 meteorological stations in the Vietnamese Mek…
View article: Nâng cao độ bền cho vải địa kỹ thuật polyester bằng lớp phủ hữu cơ fluoropolyme/bitum ứng dụng trong xây dựng công trình bảo vệ bờ
Nâng cao độ bền cho vải địa kỹ thuật polyester bằng lớp phủ hữu cơ fluoropolyme/bitum ứng dụng trong xây dựng công trình bảo vệ bờ Open
Nghiên cứu nhằm mục đích chế tạo và thử nghiệm lớp phủ bảo vệ cho vải địa kỹ thuật (ĐKT) polyester để tăng độ bền môi trường, ứng dụng xây dựng kè mềm giảm sóng bảo vệ bờ biển. Lớp phủ được chế tạo từ hỗn hợp fluoropolyme/bitum/dầu hạt điề…
View article: Assessment and Sustainable Management Strategies for Plastic Waste in Can Tho City, Vietnam: A Circular Economy Approach
Assessment and Sustainable Management Strategies for Plastic Waste in Can Tho City, Vietnam: A Circular Economy Approach Open
This study presents a comprehensive analysis of plastic waste accumulation in both terrestrial and aquatic environments in Can Tho city, Vietnam, a nation with high per capita plastic consumption and significant plastic waste discharge. Fo…
View article: Coastal Erosion Caused by River Mouth Migration on a Cuspate Delta: An Example from Thanh Hoa, Vietnam
Coastal Erosion Caused by River Mouth Migration on a Cuspate Delta: An Example from Thanh Hoa, Vietnam Open
Coastal erosion poses a significant threat to the infrastructure of the coastal community at the mouth of the Ma River in Thanh Hoa Province, Vietnam. In response, emergency solutions such as hard, protective structures are often implement…
View article: Coastal Erosion Caused by River Mouth Migration on Cuspate Delta: An Example from Thanh Hoa, Vietnam
Coastal Erosion Caused by River Mouth Migration on Cuspate Delta: An Example from Thanh Hoa, Vietnam Open
Coastal erosion is threatening the infrastructures of coastal community at the Ma River mouth in Thanh Hoa province, Vietnam. When coastal erosion happens, people try to prevent it by emergency solutions like hard structures. However, this…
View article: Sand Spit Morphology at an Inlet on Phu Quoc Island, Vietnam
Sand Spit Morphology at an Inlet on Phu Quoc Island, Vietnam Open
Tidal inlets with attached sand spits are a very common coastal landform. Since the evolution of sand spits along coastlines influence the social-economic development of local coastal areas, sand spits have become the objects of numerous s…
View article: Quan trắc diễn biến đường bờ Cù Lao Dung bằng công nghệ phân tích ảnh viễn thám
Quan trắc diễn biến đường bờ Cù Lao Dung bằng công nghệ phân tích ảnh viễn thám Open
Mục tiêu của nghiên cứu này là quan trắc diễn biến đường bờ sông và bờ biển của Cù Lao Dung bằng công nghệ phân tích ảnh viễn thám giai đoạn 2008-2022. Ảnh đa phổ Landsat được sử dụng để phân loại và chiết xuất đường bờ. Các kết quả phân t…
View article: Spit Morphology at an Inlet in Phu Quoc Island, Vietnam
Spit Morphology at an Inlet in Phu Quoc Island, Vietnam Open
Tidal inlets with attached sand spits are a very common coastal morphology. Since the evolution of the sand spits along the coastline have greatly affected on the social-economic development of local coastal areas. However, previous studie…
View article: Understanding Dry and Wet Conditions in the Vietnamese Mekong Delta Using Multiple Drought Indices: A Case Study in Ca Mau Province
Understanding Dry and Wet Conditions in the Vietnamese Mekong Delta Using Multiple Drought Indices: A Case Study in Ca Mau Province Open
Globally, hydrometeorological hazards have large impacts to agriculture output, as well as human well-being. With climate change derived increasing frequency of extreme weather conditions, the situation has becoming more severe. This study…
View article: Impacts of dike systems on hydrological regime in Vietnamese Mekong Delta
Impacts of dike systems on hydrological regime in Vietnamese Mekong Delta Open
This paper examines the impact of the dike systems on river flows in the Vietnamese Mekong Delta (VMD). The study combined a hydrological change index method and the Mann–Kendall test to assess the temporal dynamics of both discharge and w…
View article: A Theory for Estuarine Delta Formation with Finite Beach Length under Sediment Supplied from the River
A Theory for Estuarine Delta Formation with Finite Beach Length under Sediment Supplied from the River Open
Analytical solutions for a one-line model for shoreline changes are employed to investigate the formation of two wave-dominated river delta coastlines, along with a small-scale laboratory experiment. Since the present analytical solution c…
View article: Đánh giá biến động đường bờ biển Thị xã Vĩnh Châu tỉnh Sóc Trăng bằng phương pháp ảnh viễn thám
Đánh giá biến động đường bờ biển Thị xã Vĩnh Châu tỉnh Sóc Trăng bằng phương pháp ảnh viễn thám Open
View article: Phân tích các yếu tố ảnh hưởng đến thay đổi diện tích cù lao Long Khánh, huyện Hồng Ngự, tỉnh Đồng Tháp
Phân tích các yếu tố ảnh hưởng đến thay đổi diện tích cù lao Long Khánh, huyện Hồng Ngự, tỉnh Đồng Tháp Open
View article: Đánh giá hiệu quả của các công trình kè giảm sóng tại bờ biển Tây tỉnh Cà Mau
Đánh giá hiệu quả của các công trình kè giảm sóng tại bờ biển Tây tỉnh Cà Mau Open
The objective of this study is to assess the shoreline changes and wave reduction effectiveness of the detached breakwaters constructed along the West coast of Ca Mau province.First, the satellite images including Landsat and images downlo…
View article: Nghiên cứu ảnh hưởng của các yếu tố địa chất, thủy văn đến ổn định bờ sông Cái Vừng, huyện Hồng Ngự, tỉnh Đồng Tháp
Nghiên cứu ảnh hưởng của các yếu tố địa chất, thủy văn đến ổn định bờ sông Cái Vừng, huyện Hồng Ngự, tỉnh Đồng Tháp Open
The objective of this study is to assess the current state of riverbank erosion and the impact of groundwater level fluctuation on the stability of Cai Vung riverbank, Hong Ngu district, Dong Thap province.Topographic, geological, and hydr…
View article: SAND SPIT ELONGATION AND BREACHING AT THE LY HOA RIVER MOUTH, NORTHERN VIETNAM
SAND SPIT ELONGATION AND BREACHING AT THE LY HOA RIVER MOUTH, NORTHERN VIETNAM Open
ベトナム中部Ly Hoa河口において沿岸漂砂の下手方向への砂嘴の延伸が著しい．ただし，時には砂嘴の決壊（breaching）が生じ，その後，再び砂嘴の成長が見られる．しかし，当地ではこれまで様々な現地資料の蓄積が行われておらず，砂嘴延伸の状況・対策を論ずるための基礎資料が乏しい．そこで，1976年以降に撮影されているLandsat画像やGoogle Earth画像をもとにLy Hoa河口砂嘴の変動特性に関する検討を行った．その結果，砂嘴先端部は平均的に90m/年の速度で延伸…
View article: Sand Spit Development at the Loc An River Mouth, Vietnam
Sand Spit Development at the Loc An River Mouth, Vietnam Open
Elongation of the sand spit in Loc An River Mouth located in the Southern Coast of Vietnam was studied using a series of satellite images to overcome the problem associated with lacking data in developing countries like Vietnam. Characteri…
View article: RECENT ACCELERATION IN SHORELINE RETREAT OF MY KHE BEACH, CENTRAL VIENAM
RECENT ACCELERATION IN SHORELINE RETREAT OF MY KHE BEACH, CENTRAL VIENAM Open
ベトナム中部に位置するミーケー海岸においては昨年の12月以降，海岸侵食に伴う沿岸施設の被害が発生している．そこで，2018年1月に現地調査を行い，被災状況の確認，GPS汀線測量などを実施した．さらに，Google Earthの画像を用い，2002年以降のミーケー海岸における海浜変形特性の検討を行った．その結果，同海岸においては北東モンスーン時期にメガカスプの形成が顕著であり，今回の侵食箇所はメガカスプのembaymentの位置で生じていることが明らかになった．また，南西モン…
View article: STUDY ON RECOVERY PROCESS OF SEDIMENT DEPOSIT AND MECHANISM IN THE FORMATION OF RIVER MOUTH TERRACE
STUDY ON RECOVERY PROCESS OF SEDIMENT DEPOSIT AND MECHANISM IN THE FORMATION OF RIVER MOUTH TERRACE Open
河口部を含む汀線変化をシミュレートする際には，一定値の河川流出土砂量を河口での境界条件として与える．しかし，実際の河川流出土砂は，洪水時に突発的に供給されて河口テラスを形成し，その後，時間をかけて周辺海浜に回帰・輸送される．しかし，数値シミュレーションにおいてはこの「河口テラス形成」と「周辺海浜への回帰」の二つの物理過程が厳密には表現されてはいない．特に，回帰過程に関してはその詳細も明らかではない． そこで本研究においては，昨年発生した洪水により河口砂州がフラッシュされた秋…
View article: ELONGATION OF SAND SPIT AT THE LOC AN RIVER MOUTH, SOUTHERN VIETNAM
ELONGATION OF SAND SPIT AT THE LOC AN RIVER MOUTH, SOUTHERN VIETNAM Open
ベトナム南部ロックアン河口において沿岸漂砂の下手方向への砂嘴の延伸が著しい.このため,河口右岸においては流路の移動に伴う深刻な侵食が見られる.しかし,当地ではこれまで様々な現地資料の蓄積が行われておらず,砂嘴延伸の状況・対策を論ずるための基礎資料が乏しい.そこで,1988年以降に撮影されているLandsat画像やGoogle Earth画像をもとにロックアン河口砂嘴の変動特性に関する検討を行った.その結果,砂嘴先端部は平均的に95m/年の速度で延伸し,一方,対岸の汀線位置も…
View article: SAND SPIT ELONGATION AND SEDIMENT BALANCE AT THE CUA LO RIVER MOUTH, CENTRAL VIETNAM
SAND SPIT ELONGATION AND SEDIMENT BALANCE AT THE CUA LO RIVER MOUTH, CENTRAL VIETNAM Open
ベトナム中部クアロー河口周辺では侵食が著しく，近年施工された水制工も効果をもたらすことは出来なかった．そこで，同河口における侵食機構を明らかにするためにLandsat画像，Google Earth画像などの多くの映像を用いて，これまでの河口地形の回復過程を明らかにした．1970年代から一貫して開口部は沿岸漂砂下手方向に移動しており，その移動量は1,700mにも及ぶ．このような特性を定量的に検討するために，砂嘴先端座標，砂嘴面積などを算定した．特に，砂嘴の面積増加が顕著であり…
View article: EVOLUTION OF RIVER MOUTH DELTA -RESPONSES TO VARIABLE RIVER SEDIMENT DISCHARGE AND TO SHIFTING RIVER MOUTH OPENING-
EVOLUTION OF RIVER MOUTH DELTA -RESPONSES TO VARIABLE RIVER SEDIMENT DISCHARGE AND TO SHIFTING RIVER MOUTH OPENING- Open
河口部周辺における海浜の侵食問題は国の内外を問わず大きな課題である．そこで，本論文においては，(1) 河川流出土砂の増減，ならびに(2) 河口開口部の移動による河口デルタ地形の変化について解析的な検討を行った．解はワンラインモデルを基本とし，無限長の砂浜を対象とする基本解の線形重ね合わせにより二つの条件に対する解析解を導いた．これにより，河口デルタの侵食・回復過程を容易に予測することが可能となった．また，一般に砂浜端部には岬や人口構造物などの端部境界が存在することから，(1…
View article: ASYMMETRIC SHORELINE CHANGE AROUND THE CUA DAI RIVER MOUTH IN CENTRAL VIETNAM
ASYMMETRIC SHORELINE CHANGE AROUND THE CUA DAI RIVER MOUTH IN CENTRAL VIETNAM Open
ベトナム中部ツーボン川河口左岸に位置するクアダイ海岸では近年侵食が著しい．一方，河口右岸には侵食が見られない．この様な非対称な侵食状況を把握するために，Google Earth画像，および現地調査結果より地形変化の特徴を明らかにした．さらに，より長期での近年の左右岸での汀線変動の相違を定量的に知るために，Landsat画像から海岸線位置を抽出し，左岸で後退，右岸で前進傾向を確認した．また，even-odd解析を用い，非対称な汀線変動が支配的であることを示した．さらに，衛星画…