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Drought with its occurrence and manifestations at all levels of the natural components, yields both direct and indirect negative effects, on the ecological systems, water resources, social, as well as economic aspects of life. Therefore, any analysis that concerns this phenomenon, must be carried out at a multi-scalar level, addressing all manifestation levels (meteorological, hydrological, and hydrogeological drought). Standardized evaluation indices (for precipitation-SPI, evaporation-, -SPEI, streamflow-SDI and groundwater-SGI) have been used to analyze the evolution of the drought phenomena in Eastern Romania, for 1, 3, 6 and 12 months’ time-scales, applied to seven groundwater bodies. The results of the analysis complement the observations concerning the evolution of meteorological drought (using SPI and SPEI) in the East European region, by highlighting the drought sequences of the last two decades of the last century. Those are accompanied by the meteorological drought sequences which occurred on extensive areas, starting from 2007, until present, with direct effects in river discharge and increases in groundwater level depths. The Bravais–Pearson correlation coefficient shows a close connection between meteorological and hydrological drought (r ~ 0.45 to 0.68) and between hydrological and groundwater drought (r ~ 0.42 to 0.74) for wells with piezometric level under 5 m depth. In the larger context of climate scenarios which envision an increase in air temperature, and a decrease in the atmospheric hydrological input, the increase in the drought frequency is obvious, with direct effects on all-natural components that are dependent on the hydrological resources.
Ionuţ Minea; Marina Iosub; Daniel Boicu. Multi-scale approach for different type of drought in temperate climatic conditions. Natural Hazards 2021, 1 -25.
AMA StyleIonuţ Minea, Marina Iosub, Daniel Boicu. Multi-scale approach for different type of drought in temperate climatic conditions. Natural Hazards. 2021; ():1-25.
Chicago/Turabian StyleIonuţ Minea; Marina Iosub; Daniel Boicu. 2021. "Multi-scale approach for different type of drought in temperate climatic conditions." Natural Hazards , no. : 1-25.
Groundwater resources from a region may be subject to complex human and climatic pressure. The present study tries to analyze the human and climatic pressure on the groundwater resources from the eastern part of Romania, between 1983 and 2017, for seven groundwater bodies. Two parameters, the groundwater exploitation index (GWEI) and the Standardized Groundwater Index (SGI) for identifying hydrogeological droughts, were used to assess human and climatic pressure. The high values of GWEI show a significant increase in human pressure on water resources in recent decades, in lower and more populated areas, from the south and north part of de region, amid increasing investment in agriculture. In the case of climate pressure, the SGI values show significant values for the years 1983, 2000, 2007, and 2012. However, the overlap of hydrogeological droughts with an increase in human pressure can have a significant impact on the groundwater resources from this region, with negative effects in the mid and long term, under the growing effects of the regional climate changes.
Ionuț Minea; Marina Iosub; Daniel Boicu. Groundwater Resources from Eastern Romania under Human and Climatic Pressure. Sustainability 2020, 12, 10341 .
AMA StyleIonuț Minea, Marina Iosub, Daniel Boicu. Groundwater Resources from Eastern Romania under Human and Climatic Pressure. Sustainability. 2020; 12 (24):10341.
Chicago/Turabian StyleIonuț Minea; Marina Iosub; Daniel Boicu. 2020. "Groundwater Resources from Eastern Romania under Human and Climatic Pressure." Sustainability 12, no. 24: 10341.
Floods are the most destructive natural phenomenon, by the total number of casualties, and value of property damage, compared to any other type of natural disaster. However, some of the most destructive flash floods are related to dam breaches or complete collapses, that release the large amounts of water, affecting inhabited areas. Worldwide, numerous dams have almost reached or surpassed the estimated construction life span, and pose an increasing risk to structure stability. Considering their continuous degrading state, increasing rainfall aggressiveness, due to climatic changes, technical error, or even human error, there are numerous, potential causes, for which dams could develop breaches and completely fail. This study aims to portray a comparative perspective of flood impact, with real-life consequences, measured by quantifiable parameters, generated from computer simulations of different breach sizes. These parameters include the total flooded surface, water velocity, maximum water depth, number of affected buildings, etc. The analysis was undergone by means of HEC-RAS based 2D hydraulic modeling and GIS, depending on high-accuracy Lidar terrain data and historical hydrological data. As a case study, Drăcșani Lake with the associated Sulița earthfill embankment dam was chosen, being one of the largest and oldest artificial lakes in Romania.
Liviu-Marian Albu; Andrei Enea; Marina Iosub; Iuliana-Gabriela Breabăn. Dam Breach Size Comparison for Flood Simulations. A HEC-RAS Based, GIS Approach for Drăcșani Lake, Sitna River, Romania. Water 2020, 12, 1090 .
AMA StyleLiviu-Marian Albu, Andrei Enea, Marina Iosub, Iuliana-Gabriela Breabăn. Dam Breach Size Comparison for Flood Simulations. A HEC-RAS Based, GIS Approach for Drăcșani Lake, Sitna River, Romania. Water. 2020; 12 (4):1090.
Chicago/Turabian StyleLiviu-Marian Albu; Andrei Enea; Marina Iosub; Iuliana-Gabriela Breabăn. 2020. "Dam Breach Size Comparison for Flood Simulations. A HEC-RAS Based, GIS Approach for Drăcșani Lake, Sitna River, Romania." Water 12, no. 4: 1090.
Concentration of time (Tc) is a frequently used parameter in the evaluation of the hydrological response of different sizes hydrographic basin in case of rainfall events. The present study is innovative, because it has created an index that identifies the small‐sized hydrographic basins that are exposed to the risk of flooding. The Moldavian Plain is an area located in the northeast of Romania where the local population is frequently affected by floods and flash floods caused by heavy rainfall events. The main purpose of the current study is to identify the settlements located in the small‐sized hydrographic basins, which are associated with low concentration times and powerful surface runoff. The empirical method was applied in order to calculate the Tc for rainfall water, for each drainage basin, for a time class less than 6 hr. Calculations of the runoff water were also done for a theoretical extreme precipitation event, corresponding to the 1% occurrence probability. A total number of 312 basins were identified that are smaller than 30 km2, out of which 112 have Tc of less than 6 hr. These basins, in particular, pose flood risk for 12.4% of the villages and towns in the study area.
Marina Iosub; Ionuţ Minea; Oana E. Chelariu; Adrian Ursu. Assessment of flash flood susceptibility potential in Moldavian Plain (Romania). Journal of Flood Risk Management 2020, 13, 1 .
AMA StyleMarina Iosub, Ionuţ Minea, Oana E. Chelariu, Adrian Ursu. Assessment of flash flood susceptibility potential in Moldavian Plain (Romania). Journal of Flood Risk Management. 2020; 13 (4):1.
Chicago/Turabian StyleMarina Iosub; Ionuţ Minea; Oana E. Chelariu; Adrian Ursu. 2020. "Assessment of flash flood susceptibility potential in Moldavian Plain (Romania)." Journal of Flood Risk Management 13, no. 4: 1.
Marina Iosub. FLASH FLOOD IMPACT ON THE CULTURAL HERITAGE IN MOLDOVA REGION, ROMANIA. CASE STUDY: JIJIA VALLEY. 19th International Multidisciplinary Scientific GeoConference SGEM2019, Informatics, Geoinformatics and Remote Sensing 2019, 1 .
AMA StyleMarina Iosub. FLASH FLOOD IMPACT ON THE CULTURAL HERITAGE IN MOLDOVA REGION, ROMANIA. CASE STUDY: JIJIA VALLEY. 19th International Multidisciplinary Scientific GeoConference SGEM2019, Informatics, Geoinformatics and Remote Sensing. 2019; ():1.
Chicago/Turabian StyleMarina Iosub. 2019. "FLASH FLOOD IMPACT ON THE CULTURAL HERITAGE IN MOLDOVA REGION, ROMANIA. CASE STUDY: JIJIA VALLEY." 19th International Multidisciplinary Scientific GeoConference SGEM2019, Informatics, Geoinformatics and Remote Sensing , no. : 1.
Marina Iosub; Andrei Enea; Marian Albu; Ionut Minea; Oana Elena Chelariu. IDENTIFYING FLOOD-PRONE RISK AREAS, USING GIS. CASE STUDY: OZANA DRAINAGE BASIN, ROMANIA. Proceedings 2018 2018, 1 .
AMA StyleMarina Iosub, Andrei Enea, Marian Albu, Ionut Minea, Oana Elena Chelariu. IDENTIFYING FLOOD-PRONE RISK AREAS, USING GIS. CASE STUDY: OZANA DRAINAGE BASIN, ROMANIA. Proceedings 2018. 2018; ():1.
Chicago/Turabian StyleMarina Iosub; Andrei Enea; Marian Albu; Ionut Minea; Oana Elena Chelariu. 2018. "IDENTIFYING FLOOD-PRONE RISK AREAS, USING GIS. CASE STUDY: OZANA DRAINAGE BASIN, ROMANIA." Proceedings 2018 , no. : 1.
Andrei Enea; Liviu-Marian Albu; Marina Iosub; Andrei Urzica. COMPARATIVE, MULTI-PARAMETER MODELLING, AT A BASINAL AND SUB-BASINAL LEVEL, FOR FLOOD VULNERABILITY, IN TECUCEL WATERSHED. Proceedings 2018 2018, 1 .
AMA StyleAndrei Enea, Liviu-Marian Albu, Marina Iosub, Andrei Urzica. COMPARATIVE, MULTI-PARAMETER MODELLING, AT A BASINAL AND SUB-BASINAL LEVEL, FOR FLOOD VULNERABILITY, IN TECUCEL WATERSHED. Proceedings 2018. 2018; ():1.
Chicago/Turabian StyleAndrei Enea; Liviu-Marian Albu; Marina Iosub; Andrei Urzica. 2018. "COMPARATIVE, MULTI-PARAMETER MODELLING, AT A BASINAL AND SUB-BASINAL LEVEL, FOR FLOOD VULNERABILITY, IN TECUCEL WATERSHED." Proceedings 2018 , no. : 1.
Andrei Enea; Oana-Elena Hapciuc; Marina Iosub; Ionut Minea; Gheorghe Romanescu. WATER QUALITY ASSESSMENT IN THREE MOUNTAINOUS WATERSHEDS FROM EASTERN ROMANIA (SUCEAVA, OZANA AND TAZLAU RIVERS). Environmental Engineering and Management Journal 2017, 16, 605 -614.
AMA StyleAndrei Enea, Oana-Elena Hapciuc, Marina Iosub, Ionut Minea, Gheorghe Romanescu. WATER QUALITY ASSESSMENT IN THREE MOUNTAINOUS WATERSHEDS FROM EASTERN ROMANIA (SUCEAVA, OZANA AND TAZLAU RIVERS). Environmental Engineering and Management Journal. 2017; 16 (3):605-614.
Chicago/Turabian StyleAndrei Enea; Oana-Elena Hapciuc; Marina Iosub; Ionut Minea; Gheorghe Romanescu. 2017. "WATER QUALITY ASSESSMENT IN THREE MOUNTAINOUS WATERSHEDS FROM EASTERN ROMANIA (SUCEAVA, OZANA AND TAZLAU RIVERS)." Environmental Engineering and Management Journal 16, no. 3: 605-614.
Marina Iosub; Anamaria Ioana Tomaşciuc; Oana Elena Hapciuc; Andrei Enea. FLOOD RISK ANALYSIS IN SUCEAVA CITY, APPLIED FOR ITS` MAIN RIVER COURSE. International scientific conference GEOBALCANICA 2016, 111 -118.
AMA StyleMarina Iosub, Anamaria Ioana Tomaşciuc, Oana Elena Hapciuc, Andrei Enea. FLOOD RISK ANALYSIS IN SUCEAVA CITY, APPLIED FOR ITS` MAIN RIVER COURSE. International scientific conference GEOBALCANICA. 2016; ():111-118.
Chicago/Turabian StyleMarina Iosub; Anamaria Ioana Tomaşciuc; Oana Elena Hapciuc; Andrei Enea. 2016. "FLOOD RISK ANALYSIS IN SUCEAVA CITY, APPLIED FOR ITS` MAIN RIVER COURSE." International scientific conference GEOBALCANICA , no. : 111-118.
Marian Albu; Cristian Constantin Stoleriu; Andrei Enea; Marina Iosub; Oana Elena Hapciuc; Gheorghe Romanescu. GEOMORPHOLOGIC RISK ASSESSMENT IN TECUCEL DRAINAGE BASIN, USING GIS TECHNIQUES. International scientific conference GEOBALCANICA 2016, 95 -102.
AMA StyleMarian Albu, Cristian Constantin Stoleriu, Andrei Enea, Marina Iosub, Oana Elena Hapciuc, Gheorghe Romanescu. GEOMORPHOLOGIC RISK ASSESSMENT IN TECUCEL DRAINAGE BASIN, USING GIS TECHNIQUES. International scientific conference GEOBALCANICA. 2016; ():95-102.
Chicago/Turabian StyleMarian Albu; Cristian Constantin Stoleriu; Andrei Enea; Marina Iosub; Oana Elena Hapciuc; Gheorghe Romanescu. 2016. "GEOMORPHOLOGIC RISK ASSESSMENT IN TECUCEL DRAINAGE BASIN, USING GIS TECHNIQUES." International scientific conference GEOBALCANICA , no. : 95-102.
The Sucevita catchment is affected by heavy rains which produce annual floods with catastrophic effects. Among them, the material damages caused to the dwellings of Marginea village stand out. The present study examines the vulnerability of the population and buildings of a village situated in the eastern part of the Eastern Carpathians. By applying the multi-criteria method, areas with high flood vulnerability were pointed out in the Sucevita catchment. Hydraulic modelling was carried out using the HEC-RAS software and revealed that 58 dwellings with high vulnerability will be affected in the case of a flood with an exceedance probability of 1%, and 17 buildings in the case of a flood with an exceedance probability of 5%. The appropriate measures can reduce the damages of a hydrological event knowing the flood vulnerability zones. Moreover, the proper delimitation of the floodplain leads to adequate economic management and ensures the security of the population.
G. Romanescu; O.E. Hapciuc; I. Minea; M. Iosub. Flood vulnerability assessment in the mountain-plateau transition zone: a case study of Marginea village (Romania). Journal of Flood Risk Management 2016, 11, S502 -S513.
AMA StyleG. Romanescu, O.E. Hapciuc, I. Minea, M. Iosub. Flood vulnerability assessment in the mountain-plateau transition zone: a case study of Marginea village (Romania). Journal of Flood Risk Management. 2016; 11 ():S502-S513.
Chicago/Turabian StyleG. Romanescu; O.E. Hapciuc; I. Minea; M. Iosub. 2016. "Flood vulnerability assessment in the mountain-plateau transition zone: a case study of Marginea village (Romania)." Journal of Flood Risk Management 11, no. : S502-S513.
Marina Iosub. FLOOD RISK ASSESSMENT FOR THE OZANA RIVER SECTOR CORRESPONDING TO LEGHIN VILLAGE (ROMANIA). 14th SGEM GeoConference on WATER RESOURCES. FOREST, MARINE AND OCEAN ECOSYSTEMS 2014, 1 .
AMA StyleMarina Iosub. FLOOD RISK ASSESSMENT FOR THE OZANA RIVER SECTOR CORRESPONDING TO LEGHIN VILLAGE (ROMANIA). 14th SGEM GeoConference on WATER RESOURCES. FOREST, MARINE AND OCEAN ECOSYSTEMS. 2014; ():1.
Chicago/Turabian StyleMarina Iosub. 2014. "FLOOD RISK ASSESSMENT FOR THE OZANA RIVER SECTOR CORRESPONDING TO LEGHIN VILLAGE (ROMANIA)." 14th SGEM GeoConference on WATER RESOURCES. FOREST, MARINE AND OCEAN ECOSYSTEMS , no. : 1.
Marina Iosub. SPATIAL AND TEMPORAL ANALYSIS OF DRY/WET CONDITIONS IN OZANA DRAINAGE BASIN, ROMANIA USING THE STANDARDIZED PRECIPITATION INDEX. 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING 2011, 1 .
AMA StyleMarina Iosub. SPATIAL AND TEMPORAL ANALYSIS OF DRY/WET CONDITIONS IN OZANA DRAINAGE BASIN, ROMANIA USING THE STANDARDIZED PRECIPITATION INDEX. 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING. 2011; ():1.
Chicago/Turabian StyleMarina Iosub. 2011. "SPATIAL AND TEMPORAL ANALYSIS OF DRY/WET CONDITIONS IN OZANA DRAINAGE BASIN, ROMANIA USING THE STANDARDIZED PRECIPITATION INDEX." 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING , no. : 1.