Acta Hydrologica Slovaca最新文献_第2页

A CNN Bidirectional LSTM framework for predicting monsoon rainfall in India 用于预测印度季风降雨的 CNN 双向 LSTM 框架

Acta Hydrologica Slovaca Pub Date : 2023-12-04 DOI: 10.31577/ahs-2023-0024.02.0024

Rajaprasad Svs, Rambabu Mukkamala

{"title":"A CNN Bidirectional LSTM framework for predicting monsoon rainfall in India","authors":"Rajaprasad Svs, Rambabu Mukkamala","doi":"10.31577/ahs-2023-0024.02.0024","DOIUrl":"https://doi.org/10.31577/ahs-2023-0024.02.0024","url":null,"abstract":"Rainfall prediction has evolved as a paramount research significance in recent times due to its complexities and ongoing demand such as water resource planning and management. Agriculture is a major source of employment in India, as well as a substantial contributor to gross domestic product, and crop output is dependent on the monsoon season. Rainfall prediction is useful to authorities for water storage and timely release to increase crop productivity. The current study proposes a Deep Neural Network (DNN) based hybrid model using a combination of convolutional neural network bi-directional long short-term memory (CNN BiLSTM) to predict monthly rain fall during monsoon seasons. The DNN models were used to analyze the average monthly rainfall data collected across the country from 1871 to 2019 during the monsoon seasons. Furthermore, the hybrid model's results were compared to the Bidirectional LSTM (BiLSTM) architecture. In predicting rainfall in India, the proposed hybrid model framework has been found to be more accurate than the BiLSTM. The findings of the study suggest that a DNN frame work can be successfully adopted for time series analysis in water resource management and related domains to reduce the associated risks.","PeriodicalId":321483,"journal":{"name":"Acta Hydrologica Slovaca","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139012163","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

Evaluation of water dissolved oxygen under climate change and its modeling in Bodrog River at Streda nad Bodrogom 在 Streda nad Bodrogom 的 Bodrog 河评估气候变化下的水溶氧及其模型

Acta Hydrologica Slovaca Pub Date : 2023-12-04 DOI: 10.31577/ahs-2023-0024.02.0018

Veronika Bačová Mitková

{"title":"Evaluation of water dissolved oxygen under climate change and its modeling in Bodrog River at Streda nad Bodrogom","authors":"Veronika Bačová Mitková","doi":"10.31577/ahs-2023-0024.02.0018","DOIUrl":"https://doi.org/10.31577/ahs-2023-0024.02.0018","url":null,"abstract":"The oxygen is one of indicators of water quality that plays a crucial role in affecting the biological processes in surface water. In the context of the climate change, there are also changes in the oxygen regime of the water in the streams. The paper presents an evaluation of the changes in long-term data of the dissolved oxygen (DO), water temperature T w , biochemical oxygen demand (BOD) and chemical oxygen demand (COD), and flows ( Q ) in the Bodrog River at Streda nad Bodrogom, during the period of 1965–2021. The aim of the study is to detect whether significant trends occur in the time series of analyzed data. The first part of the paper dealt with the trend analyses of monthly and annual data. The results can be useful to quantify the possible threat to its balanced regime. The study shoved an increasing trend in the long-term trend of the DO and a decreasing trend in biochemical oxygen demand. The following section is focused on regression between selected components of the hydrosphere and modelling them. The ability to model the components of the hydrosphere is an essential part of water resource management.","PeriodicalId":321483,"journal":{"name":"Acta Hydrologica Slovaca","volume":"64 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139012201","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

A comparative analysis of continuous and event-based hydrological modeling for streamflow hydrograph prediction 连续水文模型和基于事件的水文模型在预测河流水文图方面的比较分析

Acta Hydrologica Slovaca Pub Date : 2023-12-04 DOI: 10.31577/ahs-2023-0024.02.0021

Mitra Tanhapour, Anna Liová, K. Hlavčová, S. Kohnová, Jaber Soltani, Bahram Malekmohammadi, Hadi Shakibian

{"title":"A comparative analysis of continuous and event-based hydrological modeling for streamflow hydrograph prediction","authors":"Mitra Tanhapour, Anna Liová, K. Hlavčová, S. Kohnová, Jaber Soltani, Bahram Malekmohammadi, Hadi Shakibian","doi":"10.31577/ahs-2023-0024.02.0021","DOIUrl":"https://doi.org/10.31577/ahs-2023-0024.02.0021","url":null,"abstract":"A precise evaluation of streamflow hydrographs and their attributes is one of the key components of hydrological applications. This research investigates a comparative analysis between event-based and continuous hydrological modeling of streamflow using the HBV rainfall-runoff model. The Dez river basin in southwest Iran was selected as a case study. Model performance was examined for a total of nine streamflow events during time period 2012–2019. The results of the model were compared for event-based and continuous simulations of streamflow using goodness-of-fit measures involving Nash-Sutcliff efficiency (NSE), normalized root mean square error (NRMSE), and mean absolute percentage error (MAPE). Besides, the most sensitive parameters were identified using sensitivity analysis. Results revealed that although HBV model has a reliable performance for both modeling approaches, continuous modeling of streamflow hydrographs slightly outperforms the EB simulation approach. These outcomes provide an efficient information to improve the operation of water systems and hydrological forecasts.","PeriodicalId":321483,"journal":{"name":"Acta Hydrologica Slovaca","volume":"41 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139011966","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

Changes of drought indices in relation with the geographic altitude of the crop site 干旱指数的变化与作物产地的地理海拔高度有关

Acta Hydrologica Slovaca Pub Date : 2023-12-04 DOI: 10.31577/ahs-2023-0024.02.0020

Á. Tarnawa, K. Kassai, Z. Kende, M. Jolánkai

{"title":"Changes of drought indices in relation with the geographic altitude of the crop site","authors":"Á. Tarnawa, K. Kassai, Z. Kende, M. Jolánkai","doi":"10.31577/ahs-2023-0024.02.0020","DOIUrl":"https://doi.org/10.31577/ahs-2023-0024.02.0020","url":null,"abstract":"The water availability of the crop site is a determining factor regarding plant growth and development. An assessment study has been done at the MATE University, Gödöllő to evaluate the magnitude of aridity in relaion with the geographic location of the crop site. Field crop species (Sugar beet Beta vulgaris, winter barley Hordeum vulgare, winter wheat Triticum aestivum, maize Zea mays, potato Solanum tuberosum, and alfalfa Medicago sativa) were examined in the study. Long term data of twelve meteorological stations (Békéscsaba, Budapest, Debrecen, Miskolc, Mosonmagyaróvár, Nagykanizsa, Nyíregyháza, Pécs, Siófok, Szeged, Szolnok, Szombathely) representing all regions of Hungary were used as a basis of evaluation. PAI indices of each station were processed with vulnerability indices of the field crops studied. The results obtained suggest, that of cereals proved to be the least susceptible, while potato and maize were proved to be highly influenced by aridity x vulnerability interactions. Strong climatic impact could be detected in the case of alfalfa and sugar beet. The geographic altitude of the crop site has shown negative correlation with the magnitude of drought indices.","PeriodicalId":321483,"journal":{"name":"Acta Hydrologica Slovaca","volume":"101 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139012448","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

Estimation of water temperature changes in the Ipeľ River based on future scenarios 基于未来情景的伊佩尔河水温变化估算

Acta Hydrologica Slovaca Pub Date : 2023-12-04 DOI: 10.31577/ahs-2023-0024.02.0022

Z. Bajtek, P. Pekárová, Katarína Jeneiová, P. Miklánek

{"title":"Estimation of water temperature changes in the Ipeľ River based on future scenarios","authors":"Z. Bajtek, P. Pekárová, Katarína Jeneiová, P. Miklánek","doi":"10.31577/ahs-2023-0024.02.0022","DOIUrl":"https://doi.org/10.31577/ahs-2023-0024.02.0022","url":null,"abstract":"Water is an irreplaceable resource for life and ecosystems, and among its key parameters is its temperature. The temperature of water and its fluctuations have a significant impact on aquatic ecosystems, highlighting the need for accurate prediction and monitoring. Therefore this study focuses on the analysis and simulation of monthly and daily water temperatures in the Ipeľ River Basin at two measuring stations. The first part of the study deals with the statistical analysis of daily water and air temperature values. The second part examines regression models for predicting daily and monthly water temperatures in the Ipeľ River Basin. The results of this analysis indicate that due to climate change, there is a gradual increase in temperatures in the Ipeľ River. This trend can have a negative impact on aquatic ecosystems and biodiversity, especially in extreme scenarios. Additionally, elevated water temperatures can affect water management and the utilization of the Ipeľ River, including the availability of drinking water and the quality of water sources. Overall, this study holds significant importance for the protection of aquatic ecosystems, and the insights gained can serve as a foundation for future strategies and measures to adapt to changing conditions and safeguard the valuable aquatic environment of the Ipeľ River Basin.","PeriodicalId":321483,"journal":{"name":"Acta Hydrologica Slovaca","volume":"70 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139011956","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

Comparison of saturation models in complex hillslopes 复杂山坡的饱和模型比较

Acta Hydrologica Slovaca Pub Date : 2023-12-04 DOI: 10.31577/ahs-2023-0024.02.0019

Touraj Sabzevari, Andrea Petroselli, Ali Torabi Haghighi, Hamidreza R. Babaali

{"title":"Comparison of saturation models in complex hillslopes","authors":"Touraj Sabzevari, Andrea Petroselli, Ali Torabi Haghighi, Hamidreza R. Babaali","doi":"10.31577/ahs-2023-0024.02.0019","DOIUrl":"https://doi.org/10.31577/ahs-2023-0024.02.0019","url":null,"abstract":"Hillslopes of natural catchment have a complex geometry. In complex hillslopes, combining different cases of plan shape (convergent, parallel and divergent) and profile curvature (concave, convex and straight) nine different geometries are created. In prediction of the surface and subsurface runoff of catchments based on saturation excess runoff mechanism, the saturated and unsaturated zones of hillslopes must be first separated. Subsurface travel time of hillslope is dependent on saturation attributes. In this research, a new saturation model, called Gamma, was developed to predict the saturated zone length and subsurface travel time in complex hillslopes. An analytical formula was introduced to calculate saturation zone length in Gamma model. Results of Gamma model, namely the saturation zone length and subsurface travel time, were compared with the results given by two other complex saturation models W and Sigma. The results of the three models were relatively close to each other in convergent and parallel hillslopes of different profile curvature type. However, due to the existence of an analytical equation for estimation of saturated zone length in the Gamma model, this model is recommended. It should be noted that for straight divergent and convex divergent hillslopes, the Gamma model is not suitable and Sigma or W model should be used.","PeriodicalId":321483,"journal":{"name":"Acta Hydrologica Slovaca","volume":"173 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139012260","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

Deterioration of water quality in aquatic system 水生系统水质恶化

Acta Hydrologica Slovaca Pub Date : 2023-06-12 DOI: 10.31577/ahs-2023-0024.01.0016

Viera Kováčová

引用次数: 1

Fire induced water repellency in the forest soil covered with different types of forest floor biomass 不同类型森林地表生物量覆盖的森林土壤的防火疏水性

Acta Hydrologica Slovaca Pub Date : 2023-06-12 DOI: 10.31577/ahs-2023-0024.01.0017

Slavomír Hološ, Anton Zvala, P. Šurda, Ľ. Lichner

{"title":"Fire induced water repellency in the forest soil covered with different types of forest floor biomass","authors":"Slavomír Hološ, Anton Zvala, P. Šurda, Ľ. Lichner","doi":"10.31577/ahs-2023-0024.01.0017","DOIUrl":"https://doi.org/10.31577/ahs-2023-0024.01.0017","url":null,"abstract":"The intensity and severity of a wildfire can influence the persistence of soil water repellency (SWR) in the affected area. The effects of fire on the SWR of forest soils depend on the type of forest vegetation, the quantity of the organic component of the forest soil, the characteristics of the organic matter, the soil type, and its properties. Three study sites were located in the Borská nížina lowland (southwestern Slovakia). The first site IL1 represents a 100-years-old stand of Scots pine ( Pinus sylvestris ), the second site IL2 is a 30-years-old stand of Scots pine ( Pinus sylvestris ), and the third site LL is a deciduous stand with a predominance of alder ( Alnus glutinosa ). The article aimed to determine the influence of forest floor biomass (FFB) in IL1, IL2 and LL on SWR induced by different heating temperatures. WDPT test was measured on the surface of burned mineral soil samples without FFB, and two series of measurements were carried out in samples covered with FFB. First were carried on the surface of burned FFB and second, under burned FFB on the exposed mineral soil. Our first hypothesis was that heating temperatures would induce higher SWR persistence on soil covered with forest floor biomass compared to bare soil; the second hypothesis was that different forest floor biomass would induce different post-fire SWR persistence. The differences between the samples covered with FFB and samples without FFB in mean values of SWR induced by different temperatures were not statistically significant for either research site. On the other hand, the highest individual SWR values were measured at or below the forest floor biomass in both deciduous and coniferous forests. The second hypothesis was not confirmed. We found similar fire-induced SWR in the different types of forest floor biomass and the soil under forest floor biomass.","PeriodicalId":321483,"journal":{"name":"Acta Hydrologica Slovaca","volume":"289 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132147839","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

Change of the Manning´s coefficient in small stream influenced by vegetation 植被对小河曼宁系数变化的影响

Acta Hydrologica Slovaca Pub Date : 2023-06-09 DOI: 10.31577/ahs-2023-0024.01.0015

Radoslav Schügerl, Y. Velísková

引用次数: 0

Development and validation of an Approximate Redistributive Balance model to estimate the distribution of water resources using the WEAP: The lower Hron river basin, Slovakia 利用WEAP估算水资源分布的近似再分配平衡模型的开发和验证:斯洛伐克的赫伦河下游流域

Acta Hydrologica Slovaca Pub Date : 2023-06-09 DOI: 10.31577/ahs-2023-0024.01.0014

Miroslav Kandera, R. Výleta

{"title":"Development and validation of an Approximate Redistributive Balance model to estimate the distribution of water resources using the WEAP: The lower Hron river basin, Slovakia","authors":"Miroslav Kandera, R. Výleta","doi":"10.31577/ahs-2023-0024.01.0014","DOIUrl":"https://doi.org/10.31577/ahs-2023-0024.01.0014","url":null,"abstract":"The Approximate Redistributive Balance (ARB) model integrated within the Water Evaluation And Planning (WEAP) software environment aims to retrospectively simulate the flows measured by water gauging stations with sufficient accuracy according to objectives of study. It does so by initially approximating the runoff distribution with a rainfall-runoff model along the modeled streams and then redistributing the difference between the sum of the total simulated runoff to the water gauging station and the flow in the water gauging station (cleaned of any anthropogenic influences). Due to its different approach to the modeling method and the user-friendly environment of the WEAP software, this model, with a relatively small scale of input data, retrospectively simulates flows along the modeled streams with a high degree of accuracy (NSE = 0.89 for similar hydrological regime of validation and calibration basins). This paper describes its development and basic characteristics and provides partial insights into the degree of accuracy with which it can simulate monthly streamflow at water gauging stations and along modeled rivers. It can therefore be a precise foundation for analyses of water management balance scenarios.","PeriodicalId":321483,"journal":{"name":"Acta Hydrologica Slovaca","volume":"40 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120869475","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