Hydrology and water resources management

[CEST2019_00923] Monitoring and treatment of cyanobacterial contaminated surface waters in France and Cyprus
by Antoniou M.G., Brient L., Tsiarta N., Keliri E., Christofi M., Hadjiouraniou G., Sukenik A.

Over the past few decades eutrophication of surface water has increased worldwide because of different anthropological activities including land fertilization and sewage run-offs; in combination with climate change. Excessive amount of nutrients (phosphorus and nitrogen), is now detected in freshwater lakes, artificially made reservoirs, and streams. Cyanobacterial nuisance in surface waters is among the most current environmental issues as it causes socio-economical problems.

Session: 33, Room: C, at Fri, 09/06/2019 - 17:06 to 17:09
Flash presentation in Hydrology and water resources management
[CEST2019_00884] An Assessment of Soil Erosion Using Rusle Model: A Case Study from the Marmara Region
by Ezer A., Guven B.

The aim of the study is applying the Revised Universal Soil Loss Equation (RUSLE) with the help of remote sensing and geographic information system techniques to calculate soil loss and to map soil erosion of the Marmara Region of Turkey in the changing climate conditions between 1989 and 2017, and also to make future projection of soil erosion for the years between 2020 and 2049.

Session: 33, Room: C, at Fri, 09/06/2019 - 16:15 to 16:30
Oral presentation in Hydrology and water resources management
[CEST2019_00846] Fuzzy Relation Between The RDIst Index And The Water Table Of A Coastal Aquifer of Nestos Delta, Greece
by Papadopoulos Ch., Gkiougkıs I., Spiliotis M., Pliakas F., Papadopoulos B.

Drought is a complicated natural extreme event associated with the decline of water availability below the normal conditions of a hydrological system, both from a temporal and from a spatial point of view. This work aims to assess the drought impacts on groundwater fluctuation in a shallow coastal unconfined aquifer via fuzzy approach. Meteorological drought intensity is estimated by the Standardized Reconnaissance Drought Index (RDIst) based on precipitation (P) and potential evapotranspiration (PET).

Session: 33, Room: C, at Fri, 09/06/2019 - 16:00 to 16:15
Oral presentation in Hydrology and water resources management
[CEST2019_00827] Revision of the Scarcity State Indicator in the Spanish Drought Management Plans
by Palop-Donat C., Paredes-Arquiola J., Andreu J.

Droughts are one of the gravest natural threats currently existing in the world and their occurrence and intensity might be exacerbated due to Climate Change. Scarcity is defined as the period when demand does not accomplish the normal reliability levels due to poor water management. Water and drought management plans (DMP) prevent scarcity periods by anticipating to drought and adapting to limited water resources. DMP in Spain were updated in December 2018. Two types of indicators were included: The Prolonged Drought Indicator and the Scarcity State Indicator (SSI).

Session: 33, Room: C, at Fri, 09/06/2019 - 17:03 to 17:06
Flash presentation in Hydrology and water resources management
[CEST2019_00808] Water Salinization in Iran: Spatial Variation of Salinity in Groundwater Resources of North West (Urmia Lake)
by Mosaferi M., Shakerkhatibi M., Jahanimoghaddam H., Esmat Saatloo M.

This study presents the quality of drinking water in terms of salinity in the western margin of Urmia Saline Lake (USL), Iran. During the study a total of 121 samples from 116 wells and 5 springs were collected which constitute drinking water resources of 301 villages in the study area. Approximately more than 30% of the water resources were brackish or saline. The maximum EC is recorded at 3060 µs/cm, which is more than 2500 µs/cm recommended by the European Union. The minimum EC is 410 µs/cm with an average of 980± 495µs/cm.

Session: 33, Room: C, at Fri, 09/06/2019 - 17:00 to 17:03
Flash presentation in Hydrology and water resources management
[CEST2019_00729] Simulating nutrient loads in an intensively cultivated Mediterranean watershed under current and projected climate conditions
by Pisinaras V., Kamidis N., Koutrakis E.T., Hatzigiannnakis E.,Panagopoulos A.

On the global scale, agriculture constitutes the most significant non-point pollution source for surface water bodies, especially in terms of nitrogen and phosphorus. Located in northeastern Greece, Vistonis basin, in which agricultural activities are widely developed, constitutes the area that discharges into Vistonis estuarine system, which is very significant both from the environmental and economic perspective. SWAT model was used in order to quantify discharge, nitrogen and phosphorus loads for the period 2003-2014, after calibration and validation.

Session: 33, Room: C, at Fri, 09/06/2019 - 16:45 to 17:00
Oral presentation in Hydrology and water resources management
[CEST2019_00707] Investigation of Shoreline Morphometry of Kızılırmak Delta’s Lagoons Using Fractal Dimension and Shoreline Development Index
by Uyar A., Ozturk D.

In this study, shoreline morphometry of the Karaboğaz, Balık, Uzun, Cernek, Liman, Gıcı and Tatlı lagoons which are located in the Kızılırmak Delta, was investigated by using fractal dimension and shoreline development index.

Session: 33, Room: C, at Fri, 09/06/2019 - 15:30 to 15:45
Oral presentation in Hydrology and water resources management
[CEST2019_00641] Evaluation of a new millifluidic device for the consistent determination of oil droplet biodegradation kinetics
by Kapellos G.E., Nagarajan M.B., Kalogerakis N., Doyle P.S.

Natural seeps and accidental releases of crude oil in the sea result in swarms of droplets that are carried away by underwater sea currents. The droplets may be created either at the sea surface during the breakup of an oil slick by sea waves, or at the seafloor during the extrusion of crude oil from natural cracks or broken wellheads. A high concentration of oil droplets in seawater disturbs the established ecosystem dynamics and poses a significant risk of toxic effects to fish and other marine animals.

Session: 27, Room: C, at Fri, 09/06/2019 - 13:00 to 13:15
Oral presentation in Hydrology and water resources management
[CEST2019_00544] Overrated Credence to the Outdated Sand Mining Legislations : A Hydrologically Challenged Measure
by Sasi V.

The recent floods in the 'God's own Paradise'(Kerala) reminds the Indian Sub-Continent as well as the Global spectators of not just heavy rainfall but also the 'hungry water effect' from deranged desiltation. Laws from the first decade of independence decide the commercial desiltation permits and procedures in most parts of the country with renewed guidelines.

Session: 27, Room: C, at Fri, 09/06/2019 - 12:45 to 13:00
Oral presentation in Hydrology and water resources management
[CEST2019_00525] Hydrological and hydraulic modelling for a severe flood event in Sperchios River Basin
by Bournas A., Feloni E., Bertsioy M., Baltas E.

A combined hydrological and hydraulic analysis is presented for an extreme flood event occurred on February 6, 2012 in Sperchios River Basin, located in Central Greece. This event caused the river’s overflow and, consequently, several damages to infrastructure and agricultural land. Sperchios River Basin is a case of ungauged basin and only rainfall measurements of fine temporal scale are available.

Session: 33, Room: C, at Fri, 09/06/2019 - 17:09 to 17:12
Flash presentation in Hydrology and water resources management
[CEST2019_00510] An Agent Based Modelling tool exploring decision-making processes for flood risk management
by Koutiva I., Makropoulos C.

Cities at risk of extreme hydro-meteorological events need to be prepared to decrease the extent of the impacts. However, the majority usually reacts to the catastrophe, having failed to proactively prepare against extremes. This can be a result of both absent structural protection measures and problematic governance. While for the first, models exist that can simulate the effect, the effect of the latter is difficult to quantify.

Session: 27, Room: C, at Fri, 09/06/2019 - 12:30 to 12:45
Oral presentation in Hydrology and water resources management
[CEST2019_00491] The Intensity – Duration (I-D) curves towards to a spatially distributed flood early warning tool (F-EWT)
by Feloni E., Baltas E.

Attica region suffers from rainfall events of high intensity, inducing flash-floods and significant damages in the urbanized areas. This analysis concerns the determination of the maximum intensity-duration thresholds regarding flooding (F) or non-flooding (NF) regime, using the available precipitation records and the dataset of Fire Service operations in flooded properties for the period 2005-2016. Each event is classified as ‘F’ or ‘NF’ in case of flooded properties or not, respectively. As expected, ‘F’ events prevail for the higher rainfall intensities.

Session: 27, Room: C, at Fri, 09/06/2019 - 13:27 to 13:30
Flash presentation in Hydrology and water resources management
[CEST2019_00453] How to identify a representative subset of hydro-climatic simulations for impact modelling studies?
by Pechlivanidis I.G., Gupta H., Bosshard T.

Uncertainties in hydro-climatic projections are (in part) related to different components of the modeling chain. Although a combination of numerous projections (ensemble) would be needed to characterize the overall uncertainty, in practice a small set of scenario combinations are constructed to provide users with a subset that is manageable for decision-making. The approach is based on a framework, rooted in the information theoretic Maximum Information Minimum Redundancy (MIMR) concept, for identifying a representative subset from an available large ensemble of hydro-climatic projections.

Session: 33, Room: C, at Fri, 09/06/2019 - 15:45 to 16:00
Oral presentation in Hydrology and water resources management
[CEST2019_00459] Flood Risk Management: past and future
by Venables J.

Based on her long involvement in water and sustainability – flood risk management, water and wastewater engineering, and water resources – Jean Venables will initially review how engineers and society have tried to deal with water in the environment. She will address recent developments in approaches such as catchment management, and integration of approaches for dealing with potable water supply, droughts and flooding. It is also important to consider how to both mitigate and adapt to climate change and its predicted effects.

Session: 21, Room: C, at Fri, 09/06/2019 - 09:00 to 09:30
Oral presentation in Hydrology and water resources management
[CEST2019_00398] Water Sustainability: Evaluation of Alternative Water Supply Methods in Greek and European Islands
by Tsesmetzis G., Kondili E.M., Kaldellis J.K.

Water is a very valuable natural resource absolutely necessary for life. Lately water resources are facing high pressure from continuously increasing demand. Besides, various areas face water shortage due to decrease of precipitation, irrational use, losses and mainly very high rates of tourism, especially in areas with water shortage and/or very limited water availability. Various water supply methods are applied in different cases in order to satisfy water demand, such as dams, desalination units, reuse of wastewater treatment plants effluents and water transport.

Session: 27, Room: C, at Fri, 09/06/2019 - 12:15 to 12:30
Oral presentation in Hydrology and water resources management
[CEST2019_00380] Reliable in-Situ Sensing of Water Quality Parameters Using Low Cost Autonomous Analysers
by Donohoe A., Hazel C., McCluskey P., McCaul M., Diamond D.

A sensing platform for the in situ, real-time analysis of phosphate in natural waters has been realised using a combination of microfluidics, colorimetric reagent chemistries, low-cost LED-based optical detection and wireless communications. Prior to field deployment, the platform was tested in the laboratory where a total of 459 autonomous measurements were performed (153 each of low calibration standard, high calibration standard and sample).

Session: 33, Room: C, at Fri, 09/06/2019 - 15:00 to 15:30
Oral presentation in Hydrology and water resources management
[CEST2019_00362] Water security of rural water supply systems in super typhoon Haiyan affected areas
by Gomba F.

The rural water supply systems in the countryside necessitate sustainability and security assessment to ensure long-term and safe water supply to target beneficiaries. The study aimed to analyse the hidden threatening factors in water supply system along technical requirements. It also predicts the probability of incidents and security degree of the system. The rural water supply system in typhoon Haiyan affected areas was rehabilitated and constructed through national and international funds.

Session: 27, Room: C, at Fri, 09/06/2019 - 12:00 to 12:15
Oral presentation in Hydrology and water resources management
[CEST2019_00299] Dam break analysis using HEC-RAS techniques. Case study: Cal Alb dam (NE Romania)
by Urzică A., Huțanu E., Mihu-Pintilie A. ,Stoleriu C.C.

Along with the understanding of the importance of a water resource in the vicinity of a human settlement, human societies have begun to build weirs, dams or hydraulic structures to use more efficiently the natural resource. One of the most important works that can be done in the course of a river is the construction of dams for the formation of storage areas. The importance of storage areas is given by their extensive use, whether used for flood defense, pisciculture, water supply or recreation.

Session: 27, Room: C, at Fri, 09/06/2019 - 13:18 to 13:21
Flash presentation in Hydrology and water resources management
[CEST2019_00308] Exceptional flood events in the summer of 2018 in the Trebes-Negel Representative Basin (Romania)
by Paveluc L.E., Grozavu A., Cojoc G.M. , Hutanu E.

In the summer of 2018, the general unstable weather throughout the central and eastern parts of Romania has led to significant rainfall, sometimes exceeding 60 mm/day, and therefore to a massive runoff on the slopes that rapidly increased the flow on tributaries and the main course of the river Trebes from the Moldavian Subcarpathians. The majority of the hydrometric basin stations recorded exceedances of the caution levels, and the hydrometric station Bacau registered the maximum historical level (H= 348 cm).

Session: 27, Room: C, at Fri, 09/06/2019 - 13:21 to 13:24
Flash presentation in Hydrology and water resources management
[CEST2019_00327] Innovative sensors for crowdsourced river measurements collection
by Krommyda M., Tsiakos V., Rigos A., Tsertou A., Amditis A., Georgiou H., Jonoski A., Popescu I., Assumpcao T.

Flood risk prediction requires consistent and accurate sensor measurements, usually provided from traditional in-situ environmental monitoring systems. Crowd-sourced data can complement these official data sources, allowing authorities to improve and fill gaps in the hazard assessment process. However, collecting this information from volunteers, with no technical knowledge and while using low-cost equipment such their smartphones and tablets, raises the question of quality and consistency.

Session: 21, Room: C, at Fri, 09/06/2019 - 10:15 to 10:30
Oral presentation in Hydrology and water resources management
[CEST2019_00293] The role of hydro-technical works in diminishing flooded areas. Case study: the June 1985 flood on the Miletin River
by Huțanu E., Urzică A., Paveluc L.E., Stoleriu C.C., Grozavu A.

Hydro-technical constructions are very important in diminishing flooded areas and associated damage in the event of a flood. The case study for the Miletin River in the Moldavian Plateau (Eastern Romania) focusses on the historical floods of June 1985. The floods recorded at the Miletin River hydrometric stations are: 106 m3/s for Nicolae Balcescu station and 204 m3/s for Şipote station. Our analysis involves a series of simulations of a flood flow constant using the hydrological data associated with the 1985 flood.

Session: 27, Room: C, at Fri, 09/06/2019 - 13:15 to 13:18
Flash presentation in Hydrology and water resources management
[CEST2019_00298] Trends in hydrologic prediction for the design of hydraulic projects
by Daniil E.I., Michas S.N.

Determination of runoff and related design discharges under past and future conditions are key elements for the design of flood defense, watercourse demarcation, urban stormwater, road drainage systems. Prediction is difficult and involves high uncertainty, especially for ungaged water¬sheds. Advanced computer capabilities provided by GIS and hydrologic modeling software facilitate computations and allow for the comparison of results by different approaches. Still many empirical relations are included, based on limited field data developed decades ago.

Session: 21, Room: C, at Fri, 09/06/2019 - 10:00 to 10:15
Oral presentation in Hydrology and water resources management
[CEST2019_00237] Climate change impact on river assimilative capacity: a case study application of water related climatic indicators
by Romas E., Ziogas A., Pechlivanidis I., Tzimas A.

In this investigation, we use climatic, water-related indicators to evaluate the impact of climate change on the assimilative capacity of the Asopos River, Central Greece. Indicators were developed and organised under the SWICCA climate service (http://swicca.eu), which aims to develop and showcase a Water Management Information Service for the Copernicus Climate Change Service based, among others, on real case studies and end-users.

Session: 21, Room: C, at Fri, 09/06/2019 - 09:45 to 10:00
Oral presentation in Hydrology and water resources management
[CEST2019_00188] Comparative Study of Flow through Vegetation Stems With and Without Foliage
by Mavrommatis A.,Christodoulou G.C.

The presence of vegetation in rivers, streams and riparian zones affects significantly the flow field and consequently the resistance, pollutant dispersion, sediment transport and ecological habitat. In this paper, a comparative study is undertaken to investigate the effect of an array of simple rigid or compound semi-flexible elements, resembling submerged small plants, on key features of the flow field. Measurements were taken by means of a 3-D ADV instrument at selected locations within the vegetation array and downstream of it.

Session: 21, Room: C, at Fri, 09/06/2019 - 09:30 to 09:45
Oral presentation in Hydrology and water resources management
[CEST2019_00105] The role of catchment properties on the importance of initial hydrologic conditions for seasonal hydrological forecasting in alpine areas
by Stergiadi M., Avesani D., Righetti M., Borga M., Zaramella M.

A well-known approach to seasonal hydrological forecasting involves the use of ensembles as forcing to a hydrological model, based either on historical meteorological data (Ensemble Streamflow Prediction, ESP) or on forecasts produced by one or more dynamic climate models (multi-model approach). This work aims at investigating the role of initial hydrologic conditions (ICs) and seasonal climate forecast skill on the accuracy of seasonal hydrologic predictions in alpine regions, as a function of catchment properties.

Session: 27, Room: C, at Fri, 09/06/2019 - 13:24 to 13:27
Flash presentation in Hydrology and water resources management
[CEST2019_00073] From system concept to serious game: the SIM4NEXUS approach to policy-relevant nexus research
by Sušnik J., Masia S., Khoury M., Vamvakeridou-Lyroudia L., Brouwer F., Riegels N., Domingo X., Echeverria L., Evans B., Savić D.

There is growing interest in using serious games for a wide range of applications and in the water-energy-food/land-climate nexus, where interactions in one sector lead to impacts in other sectors. Much practice revolves around sectoral silos, with little consideration of wider impacts. Serious games could help erode these silos, fostering efforts towards holistic policy making, where impacts can be explored and assessed without real consequences.

Session: 33, Room: C, at Fri, 09/06/2019 - 16:30 to 16:45
Oral presentation in Hydrology and water resources management