{"title":"Flow Duration Curves (FDC) for Selected Mountain Catchments in Slovakia.","authors":"Katarzyna Kubiak-Wójcicka, P. Nagy, M. Zeleňáková","doi":"10.24193/awc2023_10","DOIUrl":"https://doi.org/10.24193/awc2023_10","url":null,"abstract":"The article presents the characteristics of the Flow Duration Frequency (FDC) curve statistics of the Hornád River and its tributaries for a period of 60 years (1961-2020) and compares the flow duration curves divided into decades (1961-1970, 1971-1980, 1981- 1990, 1991-2000, 2001-2010 and 2011-2020). High flows corresponding to the flow of 10% (Q10) and 25% (Q25), medium flows corresponding to the flow of 50% (Q50) and low flows corresponding to the flow of 70% (Q75) and 90% (Q90) were analyzed. The study covered 7 catchments located in the Hornád river catchment (eastern Slovakia). The greatest variability of flows in individual decades in relation to the multi-year period 1961-2020 was recorded in all threshold ranges at the station in Prešov Sekčov. The highest values were recorded in the range of low flows (Q90), for which the coefficient of variation was 0.38 (Q90) and 0.27 (Q75). A high coefficient of variation Cv was also recorded for the Košické Olšany station in terms of low flows for Q75 and Q90, which were 0.21 and 0.19, respectively. At the remaining stations, the variability of Cv ranged from 0.08 to 0.15 for Q75 and Q90. The variability of high flows (Q10 and Q25) ranged from 0.11 to 0.17 for all catchments except for the Prešov Sekčov station, for which the values were 0.21 and 0.27, and Stratená 0.19 and 0.18, respectively.","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126842526","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}
{"title":"Numerical Modeling of Submerged Vane Flow.","authors":"","doi":"10.24193/awc2023_11","DOIUrl":"https://doi.org/10.24193/awc2023_11","url":null,"abstract":"Scours in rivers occur due to high flow velocities. In order to reduce scour, flow velocities need to be reduced. Submerged vane structures are effective in both reducing the flow rate and directing the flow. In this study, numerical modeling was made with submerged vane structures. Models of the measured flow velocities in the channel, where submerged vane experiments were performed before, were compared with the results of the submerged vane experiment by using the 3-dimensional computational fluid dynamics (CFD) method. In the present CFD model, continuity and momentum, turbulence model equations are applied. For the turbulence viscosity, k-ε turbulence model is used. The results of the present model are compared with the previous experimental work.","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126970498","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}
{"title":"Favorable Conditions for the Release of Avalanches in the 2021- 2022 Winter Season – Case Study","authors":"U. Reckerth, N. Milian","doi":"10.24193/awc2023_06","DOIUrl":"https://doi.org/10.24193/awc2023_06","url":null,"abstract":"The paper presents and analyzes the synoptic and snow-meteorological conditions that were the basis for the triggering of avalanches in the winter season 2021-2022 from the mountain massifs monitored within the snow program. Data recorded at mountain weather stations with nivometric measurements were used, as well as ground and altitude maps from the GFS archive for the analysis of synoptic situations. The purpose of the presentation is to emphasize the importance of observations and nivometric measurements, as spatial and temporal density, for estimating the avalanche risk at the level of all mountain massifs. The study is part of a larger project, which aims to inventory the cases of avalanches known so far in our country and the favorable conditions for their triggering, to use them for a better estimation of the avalanche risk and the reduction of their effects have these on the environment and people. The meeting of favorable conditions for the triggering of avalanches was due both to heavy snowfalls, high thermal values or their sudden increase, as well as to the transformations that take place inside the snow layer, as a result of which unstable structures are formed.","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132556846","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}
{"title":"Water Quality Assesment in Peatlands from North-Western Romania: Iaz and La Poduri Case Studies.","authors":"G. Șerban, R. Bătinaş, D. Sabău, A. Pop","doi":"10.24193/awc2023_02","DOIUrl":"https://doi.org/10.24193/awc2023_02","url":null,"abstract":"Present study is focusing on a few peatlands located in north-western part of Romania, as part of a larger project oriented to implement a series of restauration works in degraded peatlands. Water scarcity have transformed some of these peatlands and the loss of biodiversity could be triggered when the hydrological balance is not at the optimum value. Water quality in peatlands is also a good indicator for the health of these wetlands. In order to evaluate the present state a series of in-field measurements have been made using different tools and instruments.","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114068901","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}
{"title":"Implementing Blockchain Technology in IoT Vineyard Monitoring System","authors":"","doi":"10.24193/awc2023_01","DOIUrl":"https://doi.org/10.24193/awc2023_01","url":null,"abstract":"Data management is essential in the precision agriculture industry since it is a requirement for exposing a product's attributes and qualities to the customer while ensuring crop security, traceability, and all other values associated with product and organization sustainability. In this way, the aim of the article is to present a solution for securing information from the IoT vineyard monitoring system and to integrate advanced technologies into the crop monitoring process to increase productivity and quality. The background of the article is supported by the study of the DISAVIT project, which develops an intelligent decision support system for smart viticulture. Monitoring the health of the vineyard and their tendency to the occurrence of certain diseases characteristic of these crops requires the analysis of soil quality parameters and meteorological aspects. The data used in this study is collected from Wireless Sensor Networks (WSNs), then transmitted using 5G communication and stored in the Cloud for processing and interpretation. The HyperLedger framework, which is based on Blockchain technology, is also used to secure the data. Finally, starting from the system's operating architecture, data interpretation and visualization will be performed and the functionality of the data security system will be tested.","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127576531","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}
{"title":"Comparison of Different Methods of Modeling the Phenomena of Sediment Transport in Riverbeds.","authors":"E. Beilicci, R. Beilicci","doi":"10.24193/awc2023_17","DOIUrl":"https://doi.org/10.24193/awc2023_17","url":null,"abstract":"The study of the phenomena associated with sediment transport is important to determine if erosion or deposition will occur in a riverbed, the extent of this processes, as well as the time and distance over which it will occur. For a better understanding of these phenomena, it is necessary to identify and study all the factors and parameters that determine the mechanisms of solid transport processes in the riverbeds. Over time, several researchers have developed different formulas for calculating solid loads, models that were later integrated into various hydroinformatics tools. The use of these tools allows comparing the results obtained by applying various calculation models. This paper compares the results of sediment transport modeling in riverbeds using some of these calculation formulas: Engelund-Fredsøe; Van Rijn; Meyer-Peter & Müller; Sato, Kikkawa & Ashida, respectively Ashida, Takahashi and Mizuyama. The modeling is done on a river sector, using the advanced hydroinformatic tool MIKE11 by DHI. Comparing the results obtained by modeling, using various models, with the data obtained from the measurements make it possible to choose the best model for the studied water course.","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129501547","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}
{"title":"The Evolution of the Maximum Extreme Temperatures in the Area of the Romanian Black Sea Coast During 1961 – 2020.","authors":"L. Petrescu","doi":"10.24193/awc2023_16","DOIUrl":"https://doi.org/10.24193/awc2023_16","url":null,"abstract":"The present study investigates the trends in the monthly, seasonal and annual regime of maximum temperatures in the Romanian Black Sea coast area over the last 60 years (1961-2020), using the monthly and annual maximum temperature data provided by five meteorological stations (i.e. Sulina, Sf. Gheorghe-Delta, Gura Portiței, Constanța, Mangalia). Three CLIMPACT extreme temperature indices (i.e. monthly and the annual average of maximum temperatures - TXm, the lowest monthly and annual value of the maximum temperature -TXn, and the highest monthly and annual value of the maximum temperature -TXx) and trends analysis methods (i.e. Mann-Kendall test, Sen’s slope estimator) have been used in the study. The targeted region is under a visible and generalized warming, especially in winter and summer. The estimated warming trends are among the highest at national level. At some stations (i.e. Sulina) spring also emerges as a significant warming season. The highest warming rate is up to 5°C (e.g. Constanța). The observed trends could contribute to an improved understanding for urging adaptation actions in some key sensitive economic sectors directly affected by the recent climate warming (e.g. health, tourism, transport, biodiversity).","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133472446","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}
{"title":"Modelling of the Floods of Rivers for the Integrated Management of the Risk of Inundation: Case of the Basin Overturning of Toudgha (Southeast of Morocco)","authors":"Abdelmoumen Benchattou, M. El Ghachi","doi":"10.24193/awc2023_03","DOIUrl":"https://doi.org/10.24193/awc2023_03","url":null,"abstract":"Climate change is now widely recognized by the scientific community. Nevertheless, its impact on hydrological extremes is not yet known. Half of the world's natural disasters are floods. These disasters result from heavy rainfall, concentrated in time and space. Morocco has experienced floods of exceptional severity in terms of human and economic losses. The catchment area of Wadi Toudgha is located in the South-East of Morocco with an area of 970 km² considered among the most attractive areas for tourists at national and international level, but this basin suffers from hydrological extremes, especially floods for a long time, these hydrological extremes are hydrometeorological phenomena with often dramatic and catastrophic consequences from a material, human and environmental point of view. The methodology adopted in this scientific contribution allows us to assess the risk of floods, it is based on the idea that the risk of these hydrological extremes is the result of the factor of hazard and the factor of vulnerability, this hydrological modelling allows to understand the spatio-temporal evolution of floods and also to determine the extension of floods and historical floods. According to the application, a flood risk map has been produced to allow managers to take mitigation measures in areas likely to be affected by floods and to act more effectively in case of a flood.","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"13 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131456606","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}
{"title":"Analysis of Frequency Trends in Amalgamated Peczely Macro-Synoptic Types (1971-2020) Characterising Continental-Scale Circulation Parallel to the Global Warming","authors":"J. Mika, C. Károssy, L. Lakatos","doi":"10.24193/awc2023_15","DOIUrl":"https://doi.org/10.24193/awc2023_15","url":null,"abstract":"Macro-synoptic classification, based on spatial fields of sea-level pressure often meet application in applied climatology, weather forecasting and in air-pollution meteorology. One of these classifications was defined by Peczely (1957), establishing 13 original classes influencing actual weather in Hungary. These types, however, are of local concern and not appropriate for diagnostic analysis of continent-scale modification of circulation, related to the on-going global climate change. In the present study, new continent-scale circulation types are defined, based on frequent transition between the original circulation types, two cyclonic (Atlantic and Mediterranean) and two anticyclonic (Northward and Central-Southward) groups are defined, joining 3x3 and 1x4 original circulation types. Frequency trends of these amalgamated circulation types are established in the recent 50 years during which period a monotonical warming trend could be established in the mean near-surface temperature of the Northern Hemisphere. An important feature of these circulation trends is that the significant trends of the amalgamated types are of the same sign in all cases, although the signs of the trends are different for the different amalgamated types. Comparison of these significant 50-year trends with those derived from two 30 years periods, however, this comparison suggests that there is no simple universal relationship between the continent-scale circulation and the hemispherical mean temperature.","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116228326","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}
{"title":"Monthly Trend Investıgatıon of the Dıscharge of a Stream in Cache County. Utah","authors":"Y. Kaya, M. Demirci, Hakan Varçin, E. Turhan","doi":"10.24193/awc2023_09","DOIUrl":"https://doi.org/10.24193/awc2023_09","url":null,"abstract":"Discharge values of streams are critical for planning the water resources of basins. Discharge values of streams may change due to many reasons such as climatological effects or human-related issues. It is essential to make estimations about the discharge values’ trends for more feasible constructions on streams. In this study, discharge monitoring station records of USGS were used to determine the trends over 50 years. The data set is belonging to the Logan River Above State Dam, Near Logan. UT station and it starts in 1971 and ends in 2020. Traditional Mann Kendall Spearman’s Rho and Sen’s slope statistical tests were used to determine the monthly trends. Additionally, a yearly investigation was performed by using the same statistical approaches. According to the obtained results, any significant trends were not detected in the yearly evaluation. However, in the monthly evaluation trends were detected for August and September.","PeriodicalId":306682,"journal":{"name":"Air and Water Components of the Environment Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127682601","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}