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Preliminary Monitoring of Physico-Chemical Parameters of Water Wells from the Village of Bivolari (The Moldavian Plain)

Abstract

The main objective of the paper is focused on water quality research in the village of Bivolari, Iasi County. The Bivolari settlement is situated in the Prut meadow and develops along the road connecting Iasi and Stefanesti. The research done in this paper starts from the collection of data on water pH, water LDO (oxygen concentration), CDC (dissolved salt content) and water temperature. The parameters were measured for 7 months using the HACH-LANGE multiparameter of the Geoarchaeology Laboratory at Alexandru Ioan Cuza University of Iasi (Inter-disciplinary Platform ArheoInvest). The study is structured in two sections: scientific substantiation and applicative research. The scientific substantiation part analyzes the water features in the context of the integrated management approach as well as an analysis of the quality aspects of the water supply. The applied research part required monthly field measurements in 50 fountains (without the winter season). The approached subject is is complex and up-to-date because the citizen is a priority for EU Member States (EUPAN, 2009): the aspect of “customer satisfaction” represents a capital priority. Finally, the database is structured into two categories: spatial information such as maps; tabular information attached to spatial data. The paper also follows the transition from the field of research into the field of application by presenting models of data representation, which are at the same time tools adapted to the practical needs. In order to achieve this goal, the concept of quality (both in terms of product - drinking water and local consumer) is defined and addressed in an integrated manner. Of the 50 wells monitored, only one had a water shortage in the last 10 years, and in two other cases there were problems with household waste and dead animals that damaged the water supply. Some fountains can dry at intervals of 3-4 years.

Open access
Resiliency Analysis of Energy Demand System in Finland

Abstract

Investigating the performance and productivity level of different energy consuming sectors in all countries is an inevitable action. This procedure will be conducted by comparing the energy input and the output of the system which is vital to ensure that the system is used properly. The proper utilization of systems will lead to more efficiency in the energy consumption section. One of the most important tasks in this type of study is the analysis of uncertainty indicators. The analysis and evaluation of uncertainty indices in energy consumption system is a tool that prioritizes the indicators in terms of importance and impact on each of the consumption targets. These consumption goals include energy, environmental, technical, economical, and social objectives. Ultimately, the output data of the uncertainty analysis will be very helpful for making the system more reliable and usable. In this study, we first introduced different sectors of the energy consumption system in Finland and examined each of these sectors in terms of physical and environmental goals. Then the uncertainty indexes in different sectors are extracted, evaluated qualitatively and quantified using the fuzzy logic method. Finally, indicators are prioritized based on the level of effectiveness and uncertainty. According to the results of this research, among 44 considered indices, the security of energy supply, carbon emission, equivalent annual cost, reliability, and political acceptability are respectively the most important indices for energy, environmental, economic, technical and social goals.

Open access
Snow Cover and Frosts of April 2017 on the Territory of the Republic of Moldova

Abstract

This study investigates the event of a great snowfall on the territory of the Republic of Moldova in the third decade of April, 2017. The mechanical action of weight led harmed the agricultural crops, woody vegetation, electric networks and comunications, deteriorate glass and pellicle greenhouses. The most affected regions of snow and frost were the southern and central ones.

Open access
Solar Energy Industry as a Part of the Romanian Renewable Energy Industry: A Multi-level Territorial Approach

Abstract

The green economy emerges differently depending on each region particular features, as well as local economic strengths and weaknesses; solar energy however, represents the way regional and local natural potentials are valorized. The current paper brings to our attention aspects related to the economic and legislative factors influencing the use and territorial distribution of solar energy, as a component of the Romanian renewable energy industry at all territorial levels: the national characteristics of the use of renewable energy resources are highlighted through the analysis of dynamics of official statistical variables (National Institute of Statistics); at regional and county levels, the analysis highlights the territorial differences in the use of solar energy; analysis at local level reveals the environmental and socio-economic effects of the of solar energy use (i.e. photovoltaic parks), as indicated by the information provided by a questionnaire survey carry out in Giurgiu County (case study).

Open access
Studies and Research on Maximum Flows of the Trotuş River in 1990-2017

Abstract

Research has analyzed components of the climate and hydrological regime on the Trotuş River and its tributaries over the past 30 years. The hydrological risk was determined by natural causes, but also by anthropogenic causes. Parameters of hydroclimatic risk are represented of the torrential rainfall, flood flows, high frequency of high flows, high erosion speeds etc. The research revealed that at very low intervals (3-5 years) there were floods with very high flows. Changing the climate regime (precipitation concentration on small days) and the natural relief forms in the hydrographical basin (the Eastern Carpathian Mountains) allowed natural risk to occur in the hydrological regime of the Trotuş River. Anthropic factors, in particular, the modification of the leakage coefficient by deforestation of forests and the change of agricultural use of land with large slopes have contributed to the occurrence of anthropogenic risk in the Trotuş River basin. Corroboration of the two types of risk, natural and anthropic, has led to a hydrological disaster regime in the Trotuş River Basin.

Open access
Studies and Research on Natural and Antropic Risk the Moldova’s Lower Course

Abstract

The paper presents the studies and researches on the natural and anthropic risk parameters on the Moldova riverbed in the Soci area, Iasi County. In this area are located hydrotechnical structures for regulation of the riverbed and shore defence for the protection of the undercrossing of the Timisesti-Iasi adduction pipeline. The theoretical study analyzed hydrological risk parameters (especially liquid and solid flows) recorded over the last 30 years. High flow rates have a high hydroclimatic risk for bed and river construction. Anthropogenic risk parameters were manifested in the morphological modification of the minor riverbed of the Moldova River. An important anthropogenic risk is the uncontrolled exploitation of the ballast in the bed and river banks of Moldova. The effects of this risk contributed to the descent of the bed of the bed at an accelerated pace, along with the erosion of the banks. The accumulation of the effects caused by the natural and the anthropic risks led to important morphological changes in the riverbed of Moldova. These modifications have altered the safety state of the construction of the undercrossing of the Timisesti-Iasi adduction pipeline. The result of the hydrological and also human actions was the degradation of the pipelines until their rupture.

Open access
Studies and Researches on Monitoring by GIS Models Extreme Phenomenons in the Popular Center

Abstract

The work involves the realization of a GIS model that includes both information on real estate cadastre and water supply networks. This shows the stages of making such a model, starting from field measurements, to structuring the database and custom layouts. In the study, the distribution pipelines equipped with fire hydrants and the existing building types in the area were considered as the main elements. Buildings were classified according to importance, height, destination, mapping indexes, etc. and have been integrated into the GIS model. GIS programs aim at specifying as much as possible the textual data attached to perform complex analyzes. Autocad and ArcMap programs allow you to get thematic maps on building types, pipeline network analysis on which hydrants are located, and how to protect firewalls. The study model was developed only for a sector in the city of Iaşi, but it can be extended to an application that can be used in other urban areas for the purpose of being used by the water-channel directorate, the intervention teams, the public administration local, etc.

Open access
Trajectories of Hail Cells with Potential of Generating Hailstorms in Moldova in 2016-2017

Abstract

Hail is one of the most damaging weather phenomena. Inflicted damage affects mostly agriculture, but also human settlements. The effects produced are mainly due to the size of the hailstones and the amount of fallen ice and, of course, to the vulnerability of the territory in which it occurs. The average number of hail days in Moldova increases from less than 1 day / year in the Barlad Plateau to over 6 days a year on the high mountain peaks. Studies at national or regional level in Romania have not addressed the problem of trajectories of hail cells with potential of generating hailstorms. In addition to literature references, weather data from the ground, synoptic maps and satellite images for the warm seasons of the two years have been used. In the two observation seasons (15 April-15 October) of the years 2016 and 2018 for the analyzed territory, a number of days with similar convective cells were observed, 51, respectively 53. The direction of southwest movement (33%) dominated, followed by the northwest direction.

Open access
Transformation Through CLC with the Continuous Research Techniques - GIS (Open Code) and RS (Geo-Web Services)

Abstract

Land cover has always been and still it is one of the main challenges in the field of geography. This study will be focused on “experimentation” of one of the most modern techniques of our time, becoming irreplaceable standard for decision-making in matters of land cover and the square method. Here we are talking about the standard named: CORINE Land Cover, a technique for describing the land cover, initiated by the European Union in 1985. More precisely part of this paper will be the principles of this technique and their practical application, by doing a research through these techniques for specific areas. CORINE Land Cover will be used to explain the coverage area while the square method will be used for the division of the research area. The research area has been designed through random method. In this study are given three study areas along the coastline with an area of 100 km2, by making the entire research area of 300 km2. Each “main” area is divided in sub-areas of 100 ha, while each of these sub-areas is divided into smaller squares with equal area of 1 ha.

There are two “main experiments” in this paper:

1. Land cover technique – to design the minimum research area we used the method of square, while for explaining the coverage we used CORINE Land Cover nomenclature.

2. Technology to implement the technique – we used the so called open source GIS software and for satellite images we used Google geo-web service.

Open access
Transitional Dynamics Based Trend Analysis of Land Cover and Use Changes in Romania During 1990-2012

Abstract

Land cover and use changes, part of the ‘global changes’, are important for the global sustainability and resilience through their negative impacts on ecosystem services and biodiversity, and on the human welfare. In Eastern Europe in general and Romania in special, property restitution was a main driver of change. This study aimed to look at the land cover and use changes in Romania by their transitional dynamic using CORINE data in an attempt to identify the long-term consistent trends. The results show that deforestation and urbanization are more prominent, and the development of agriculture slows down, reflecting the consequences of an unplanned development and low environmental care. The hotspots concentrating land cover and use changes are characteristic to ex-socialist transition countries.

Open access