Global climate change has emerged as a problem in recent years, and its effects will likely continue to increase the future. Several scientific studies conducted Mediterranean region have demonstrated relatively stationary trends for annual precipitation significant upward mean temperature. These present several implications, especially Greek islands that serve major summer tourist destinations where population is already unable meet their water demands. The aim of this study investigate...

Drought is one of the most complex and poorly understood catastrophes on planet. Between Greek mainland Turkey, there an area Greece known as South Aegean Islands, that experiences water supply issues. As a result, are issues related to socioeconomic growth some these islands, need for transportation by vessels. Water ships Cyclades Dodecanese areas from or other adjacent islands satisfy urgent demands, hand, exceptionally expensive. The situation deteriorates during summer, when drinking...

Efficient and sustainable water management measures are required on Mediterranean islands due to shortages, which exacerbated by climatic variability increased tourist traffic. This study uses a multi-criteria decision analysis (MCDA) approach, specifically Technique for Order of Preference Similarity Ideal Solution (TOPSIS), examine rate strategies three Aegean that face significant shortage: Mykonos, Naxos, Kos. Three main factors were taken into account in the analysis: preventing...

Ten notable meteorological drought indices were compared on tracking the effect of streamflow. A 730-month dataset precipitation, temperature and evapotranspiration for 88 catchments in Oregon, USA, representing pristine conditions, was used to compute indices. These correlated with monthly streamflow datasets minimum, maximum mean discharge, discharge fluctuation; it revealed that 3-month Z-score index (Z3) has best association four variables. The Mann-Kendall trend detection test applied...

Urban expansion substantially alters the impervious areas in a catchment, which turn affects surface runoff and sediment yield downstream areas. In this study, Land Transformation Model (LTM) was used to forecast urban land whilst future use maps were employed according Soil Conservation Service Curve Number method (SCS-CN) Modified Universal Loss Equation (MUSLE) model, so as examine urbanization effects on production respectively. Compared pristine conditions, is anticipated increase from...

Characteristics of the precipitation pattern are determined for Thessaly region in central Greece by using Principal Component Analysis (PCA). Mean monthly data from 75 meteorological stations used covering a 35 year period (1960-1994). The first two principal components (PCs), which describe 87.7% total variance, taken into consideration. It is demonstrated statistically that PC1 related to frequency cyclones crossing area, while PC2 anticyclonic and non-gradient surface weather types cold...

Inappropriate artificial activities can escalate the frequency, intensity, and magnitude of floods aggravate their aftermath. Additionally, urban sprawl is responsible for increasing manifestation flood events in coastal areas. In this study, effects diachronically formulated stream-channel modifications registered expansion on hazards were quantified. Initially, land-use changes monitored over time a detailed field topographic survey was performed. The peak discharge 50-year return period...

The flood magnitudes with 25, 50, and 100 years return periods the environmental flows (Qenv) are of outmost importance in context hydraulic hydrologic design. In this study, 25 watershed characteristics were linked aforementioned recurrence intervals, peak discharge values, as well Qenv for 15 pristine torrential watersheds more than 10 streamflow records Rhodopi mountain range a view to generating regional relationships assessment annual peaks regarding ungauged region. Log-Pearson Type...

The number of solar photovoltaic (PV) arrays in Greece has increased rapidly during the recent years. As a result, there is an increasing need for high quality updated information regarding status PV farms. This includes farms, power capacity and energy generated. However, access to this data obsolete, mainly due fact that difficulty tracking investment (from licensing completion production). article presents novel approach, which uses free resolution satellite imagery deep learning...

Worldwide energy demand is constantly increasing. This fact, in combination with the ever growing need to reduce production footprint on environment, has led adoption of cleaner and more sustainable forms production. Renewable Energy Sources (RES) are developing an effort increase their conversion efficiency improve life cycle. However, not all types RES accepted by general public. Wind Turbines (WTs) considered many researchers as least acceptable type RES. mostly because how installation...

The purpose of this paper is to develop the water balance Natura 2000 protected area "Nestos delta" on a monthly time step.The most significant ecosystem delta aquatic forest (dominated by Salix alba and Populus alba) which remains along river course near mount poplar plantation.During last decade two large dams have been constructed upstream study for hydropower generation irrigation, resulting in dramatic modification hydrologic regime site.The research based analysis available...

Small concrete gravity dams play a dominant role in controlling the sediment production and flood phenomena at torrential streams. Since 1931, Greek Forest Service has established hundreds of such type mountain regions all over country with practically zero failures. The objective this article is to illustrate 3D solid modelling procedure which could be employed on different computer aid design software so as accomplish simplified designing small dam structural height length 4.2m 13.14m...