International Journal of River Basin Management最新文献_第9页

Impact of data partitioning in groundwater level prediction using artificial neural network for multiple wells 数据划分对多井地下水位人工神经网络预测的影响

IF 2.5

International Journal of River Basin Management Pub Date : 2022-05-21 DOI: 10.1080/15715124.2022.2079653

J. Seidu, A. Ewusi, J. Kuma, Y. Ziggah, H. Voigt

{"title":"Impact of data partitioning in groundwater level prediction using artificial neural network for multiple wells","authors":"J. Seidu, A. Ewusi, J. Kuma, Y. Ziggah, H. Voigt","doi":"10.1080/15715124.2022.2079653","DOIUrl":"https://doi.org/10.1080/15715124.2022.2079653","url":null,"abstract":"ABSTRACT Information on groundwater level (GWL) fluctuation is very important for general planning and water resources management. In recent times, Artificial Neural Network (ANN) has gained popularity as alternative modelling tool to the existing physical-based models in groundwater level forecasting. In ANN modelling, the most widely and successfully used data partitioning approach of the hold-out cross validation has been a critical factor that affects the performance of the model. This study is focused on evaluating and comparing the impact of different data size partitioning in groundwater level prediction using ANN methods. The study considered all the possible partitioning percentages for the train-test sets which are (90–10), (80–20), (70–30), (60–40) and (50–50). These five different partitions have been analysed and tested on 13 different boreholes (BH) using Backpropagation Neural Network (BPNN), Radial Basis Function Neural Network (RBFNN), Generalized Regression Neural Network (GRNN) and Group Method of Data Handling (GMDH). The results indicated that (70–30) and (80–20) were the most dominant partitions to produce optimum GWL prediction models for the BHs. Overall, it was noticed that RBFNN was superior when (70–30) and (80–20) partitions were employed, whereas BPNN was the best for the (60–40) and (50–50) partitions. This study demonstrates that the performance of ANN method is heavily dependent on the partition percentage used in the model formulation. Therefore, the main contribution of this study was to bring to light how different data partitioning size impacts on the effectiveness of the ANN in GWL prediction.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42397407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Water Balance Analysis Using Palmer Drought Severeity Index for Drought-Prone Region of Marathwada, India 基于Palmer干旱严重指数的印度马拉特瓦达干旱易发地区水量平衡分析

IF 2.5

International Journal of River Basin Management Pub Date : 2022-05-21 DOI: 10.1080/15715124.2022.2079661

R. Dhawale, S. Paul, Jeeno Soa George

{"title":"Water Balance Analysis Using Palmer Drought Severeity Index for Drought-Prone Region of Marathwada, India","authors":"R. Dhawale, S. Paul, Jeeno Soa George","doi":"10.1080/15715124.2022.2079661","DOIUrl":"https://doi.org/10.1080/15715124.2022.2079661","url":null,"abstract":"ABSTRACT Sustainable water resource management is the immediate priority as the rapid depletion of water resources is aggravating drought conditions in many regions worldwide. One of the possible approaches to recover from such a condition is through water resource balancing. The water balance studies require knowledge of water availability for various sectors’ present and future requirements to balance the water resource. The present study uses the Palmer Drought Severity Index (PDSI) for water balancing. It evaluates the soil moisture deficit or surplus with spatial and temporal changes for the Marathwada region consisting of eight districts for 1957–2017. The analyzis shows water surplus from July to September and water deficit from November to May. The study observes that the Marathwada is drought-free during the Kharif season and water deficit in Rabi season. This study analyzes the need for crop-shift to avoid crop damage during drought. Based on the analyzis, all the urban system sectors need to augment short-term and long-term policies to overcome the water crisis for a balanced water resource. The Self-Calibrated PDSI (ScPDSI) is calculated based on PDSI, which gives more freedom in analyzing the drought period. Highlights Water balancing approach can effectively help in modelling the rapid depletion of water resources. This work expands the use of drought indicators for water balancing by evaluating the soil moisture deficit or surplus with spatial and temporal changes for the Marathwada region for 1957–2017. Urban system sectors may augment short-term and long-term policies based on the framework to overcome the water crisis for a balanced water resource.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41969590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Analysis of spatio-temporal variation of hydroclimatic variables of the Krishna river basin under future scenarios 未来情景下克里希纳河流域水文气候变量时空变化分析

IF 2.5

International Journal of River Basin Management Pub Date : 2022-05-21 DOI: 10.1080/15715124.2022.2079656

Chanapathi Tirupathi, T. Shashidhar

{"title":"Analysis of spatio-temporal variation of hydroclimatic variables of the Krishna river basin under future scenarios","authors":"Chanapathi Tirupathi, T. Shashidhar","doi":"10.1080/15715124.2022.2079656","DOIUrl":"https://doi.org/10.1080/15715124.2022.2079656","url":null,"abstract":"ABSTRACT Climate change and intensified human activities are expected to alter the natural hydrological cycle would cause changes in the distribution of water resources and their availability across space and time. Therefore, the present study focused on understanding the spatiotemporal variations of hydroclimatic variables namely rainfall, surface runoff, water yield, and the Aridity Index (AI) of the Krishna River Basin (KRB) under combined impact of climate and Land Use/Land Cover (LULC) change scenarios. From trend analysis, the best model (CNRM-CM5 driven RCM) projected an increasing trend in rainfall under both RCP 4.5 and 8.5 scenarios for the entire century. Results indicated that, except for the central part, most of KRB experiences high runoff and water yield conditions under both RCP 4.5 and 8.5 scenarios in the mid and end centuries, conversely it may face low runoff and water yield conditions in the early century. Most of the central part is in arid and semi-arid conditions and, the eastern part of the basin is in dry sub-humid conditions, while the Western Ghats, Palleru, and Munneru regions of the basin fall under humid and hyper humid regions under RCP 4.5 scenario. Whereas the majority of the basin falls under humid and hyper humid regions under RCP 8.5 scenario except for the central and few other parts of the basin. In light of this, it was essential to review the current water management strategies and plan future projects to provide efficient and effective ways to mitigate the adverse impacts resulting from climate variability.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47602807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the effectiveness of community based watershed management practices on reversing land degradation in Finchwuha watershed, Gojjam, Ethiopia 评估以社区为基础的流域管理实践对扭转埃塞俄比亚Gojjam Finchwuha流域土地退化的有效性

IF 2.5

International Journal of River Basin Management Pub Date : 2022-05-21 DOI: 10.1080/15715124.2022.2079658

A. Mekuriaw, Tadesse Amsalu

{"title":"Assessing the effectiveness of community based watershed management practices on reversing land degradation in Finchwuha watershed, Gojjam, Ethiopia","authors":"A. Mekuriaw, Tadesse Amsalu","doi":"10.1080/15715124.2022.2079658","DOIUrl":"https://doi.org/10.1080/15715124.2022.2079658","url":null,"abstract":"ABSTRACT Land degradation is an evident and severe environmental problem in Ethiopia. Since 2003 community-based watershed management has been implemented in the study area to reduce land degradation. This study aimed to investigate to what extent the community-based watershed management is effective in rehabilitating the land. Woody vegetative cover, land use/cover (LULC) change and soil erosion rate were selected variables to examine the effectiveness of the management measures. The LULC and woody vegetative cover spatial datasets were created from Landsat satellite images of 2003 and 2019 using ERDAS IMAGINE 2016® and ArcGIS10.8®. The soil loss rate was modelled using geoinformation techniques combined with the Revised Universal Soil Loss Equation. To assess the perception of farmers involved in the watershed rehabilitation activities, qualitative data were collected through Focus Group Discussions and Key Informant interviews. The results showed that the average annual soil loss rate in the study area was 49.5 tonnes (t)/hectare (ha−1)/year(y−1) in 2003 and 23.8 t ha−1y−1 in 2019, which is a 52% decrease over 16 years. Woody vegetative cover and grassland increased by 11% and 103%, respectively. These figures and respondents’ responses, Focus Group Discussants and Key Informants showed that the community-based watershed management measures implemented in the study area were effective for improving vegetation cover and reducing soil loss (reducing land degradation). The sustainability of these achievements is contingent on the availability of a robust local organizational set-up complemented by the provision of natural resources development technologies, capacity building and security of land tenure. In sum, the findings in the study lead to conclude that the active involvement of farmers in land management and security of land tenure are effective approaches to reverse land degradation in the highlands of Ethiopia.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41418772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Uncertainty analysis of risk-based flood safety standards in the Netherlands through a scenario-based approach 基于情景的荷兰基于风险的洪水安全标准的不确定性分析

IF 2.5

International Journal of River Basin Management Pub Date : 2022-05-08 DOI: 10.1080/15715124.2022.2060243

S. Westerhof, M. Booij, Marcel C. J. Van den Berg, Ric Huting, J. Warmink

引用次数: 3

Design Flood Computation at Ungauged Catchments of Baitarani River Basin using Scaling Concept and Probabilistic Time Distribution of Design Rainfall Baitarani河流域未统计流域设计洪水的标度概念和设计降雨概率时间分布计算

IF 2.5

International Journal of River Basin Management Pub Date : 2022-04-10 DOI: 10.1080/15715124.2022.2064482

M. K. Bhuyan, Asutosh Dash, Joygopal Jena, P. K. Bhunya, Akshay Kumar Bhuyan

{"title":"Design Flood Computation at Ungauged Catchments of Baitarani River Basin using Scaling Concept and Probabilistic Time Distribution of Design Rainfall","authors":"M. K. Bhuyan, Asutosh Dash, Joygopal Jena, P. K. Bhunya, Akshay Kumar Bhuyan","doi":"10.1080/15715124.2022.2064482","DOIUrl":"https://doi.org/10.1080/15715124.2022.2064482","url":null,"abstract":"ABSTRACT Short-duration rainfall data are basic inputs to many rainfall-runoff models for generating the flood hydrographs. But these data are scarce in comparison to daily data, which is abundantly available, but cannot be directly used unless disaggregated to a shorter duration. This paper adopts a simple scaling approach for disaggregation of daily design precipitation into the desired duration and the time distribution of precipitation based on 3p Beta distribution herein referred to as the scaled 3p-Beta approach. The rainfall quantiles and their temporal distribution, when used as an input to the rainfall-runoff model, generate the design flood hydrograph at the ungauged location. The Upper Baitarani Basin under Mahanadi Sub-zone (3d) of India has been selected as the test catchment. The efficacy of the proposed scaled 3p-Beta approach, and also the rational approach coupled with CWC-2p Gamma UH was verified in the test catchment for design flood computation. The findings reveal that the methodology ensures encouraging results directly derivable from the abundantly available daily rainfall data and can be applied in any ungauged catchment in a region.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47032211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Blockage of box-shaped and circular culverts under flood event conditions: a laboratory investigation 洪水条件下箱形和圆形涵洞的堵塞:实验室调查

IF 2.5

International Journal of River Basin Management Pub Date : 2022-04-10 DOI: 10.1080/15715124.2022.2064483

Miranzadeh Azam, Keshavarzi Alireza, H. Hossein

{"title":"Blockage of box-shaped and circular culverts under flood event conditions: a laboratory investigation","authors":"Miranzadeh Azam, Keshavarzi Alireza, H. Hossein","doi":"10.1080/15715124.2022.2064483","DOIUrl":"https://doi.org/10.1080/15715124.2022.2064483","url":null,"abstract":"ABSTRACT Culverts are used to allow runoff to pass through roads, railways, and embankments. Accumulation of debris during flood events reduces the culvert flow capacity and hence flow overtopping results in culvert failure both hydraulically and structurally. This paper presents the results of an experimental study of temporal variations of blockage upstream of culverts due to woody debris under unsteady flow conditions. To simulate flood conditions, a synthetic flow hydrograph was produced in the laboratory. Cylindrical wooden dowels with two different diameters were used to simulate the woody debris carrying during flood events. Two culvert shapes including box and circular pipe culverts are examined here. The results showed that the maximum percentage of blockage occurs during the falling limb of the hydrograph. Although the feeding rate of smaller diameter woody debris into the flow is of considerable importance in the culvert blockage, the blockage percentage is not influenced by the feeding rate of large woody debris. It was also found that the pipe culvert is more susceptible to blockage than the box-shaped culvert. Using regression analysis, predictive equations are suggested to estimate the percentage of culvert blockage during flood events.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46500001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Modeling Interactions between Reservoir System Operating Objectives 油藏系统作业目标之间的相互作用建模

IF 2.5

International Journal of River Basin Management Pub Date : 2022-03-31 DOI: 10.1080/15715124.2022.2060244

Cemile Arslan, R. Wurbs

引用次数: 0

The drivers for the collapse of Lake Haramaya and proposed integrated rehabilitation strategies 哈拉玛亚湖崩塌的驱动因素及综合修复策略

IF 2.5

International Journal of River Basin Management Pub Date : 2022-03-03 DOI: 10.1080/15715124.2022.2047709

Sitotaw Haile Erena, R. Uttama Reddy, Awol Akmel Yesuf

{"title":"The drivers for the collapse of Lake Haramaya and proposed integrated rehabilitation strategies","authors":"Sitotaw Haile Erena, R. Uttama Reddy, Awol Akmel Yesuf","doi":"10.1080/15715124.2022.2047709","DOIUrl":"https://doi.org/10.1080/15715124.2022.2047709","url":null,"abstract":"ABSTRACT Lake ecosystem is facing a threat of shrink in many parts of the world and the same in Ethiopia. Lake Haramaya, one of the highland lakes in Ethiopia, has been dried a decade ago in 2004. This study was conducted in Lake Haramaya watershed, Eastern Hararge, Ethiopia, with the objectives of identifying drivers of dried Lake Haramaya and proposing rehabilitation strategies. Various methodologies were employed to meet the intended objectives. Drivers are identified by the study of triangulated data from landsat images of five decades, trend of climate change, focus group discussions, and review of previous research results. To see the effect of land use dynamics on the lake environment, major LULC types were detected and the change analysis of the watershed was executed. To investigate association between climate change and lake environment, the rainfall index method was employed to evaluate 30 years annual rainfall distribution of Haramaya meteorological stations. The results of this method reveal that land use for settlement, climate change, and overexploitation of the lake within and out of the watershed were primary drivers. To propose lake rehabilitation strategies, the study employed the United Nation man and biosphere protection zones. The study classified the watershed into three classes as core, buffer, and transition zones. The size of the lake in 1985 was decided as the core area and 100 metre surrounding the core area as the buffer zone. The result of the study proposed protection of the core area and introduction of apple fruits replacing chat in the buffer zone with prohibition of human settlement. In addition, this study suggests that all activities that take place in the transition zone should comply with sustainable development goal strategies. Therefore, it is highly recommended to adopt the output and proposed strategies of this study in future rehabilitation strategies of Lake Haramaya and its watershed.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59981791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Quality assessment of drinking water sources in the upper Jhelum basin of Kashmir Himalaya, J&K, India 印度查谟克什米尔-喜马拉雅上杰勒姆盆地饮用水源质量评价

IF 2.5

International Journal of River Basin Management Pub Date : 2022-02-04 DOI: 10.1080/15715124.2022.2036747

M. Ganaie, Aisha Dev, Ishtiaq A. Mayer, P. Ahmed, Showkat A. Ganaie

{"title":"Quality assessment of drinking water sources in the upper Jhelum basin of Kashmir Himalaya, J&K, India","authors":"M. Ganaie, Aisha Dev, Ishtiaq A. Mayer, P. Ahmed, Showkat A. Ganaie","doi":"10.1080/15715124.2022.2036747","DOIUrl":"https://doi.org/10.1080/15715124.2022.2036747","url":null,"abstract":"ABSTRACT Water is the most significant natural resource for all living beings on the planet. The quality of water is considered the main factor linked to the status of health and disease in living organisms, including humans. The present study aims to assess the quality of water in the upper Jhelum basin of the Kashmir Himalayas. A multi-stage sampling technique has been used. To achieve the measured values for quality assessment, a total of 60 water samples were collected from various drinking water sources. The data was analyzed using suitable statistical techniques and relevant methods of water quality assessment. The results were compared with standard norms of the World Health Organization (WHO) and the Bureau of Indian Standards (BIS). The inferences revealed that most of the sampling sites had either excellent or good water quality, except for the sites encoded as RWS1, RWS4, RWS5, RWS6, RWS13 and RWS14, which depicted poor water quality. The findings revealed that water quality fluctuations are caused by anthropogenic activities such as domestic waste, agriculture and horticulture, as well as natural processes such as weathering and erosion. In general, the inferential statistics revealed that water quality varies from excellent to moderately polluted. Thus, proper purification and timely monitoring of water bodies must be ensured. The purpose of the study is to suggest remedial measures to ease the deterioration and related repercussions in the future.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46258771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3