drought is a climatic phenomenon that causes much detrimental influence on ecological environments. this research investigates the performance of meteorological drought indices in different time scales in thetajan basin in iran. indices undergone in this study include: percent normal precipitation index (pnpi), z-score index (zsi), standard precipitation index (spi), china z index (czi), modifi...

The study was aimed at detecting and characterizing meteorological drought risk areas using remote sensing data in North Wollo, Ethiopia. Climate Hazards Group InfraRed Precipitation with Stations (CHIRPS) rainfall dataset used to compute the Z score index (ZSI) depict droughts during meher season (2000–2019). MOD11A2 from Moderate Resolution Imaging Spectroradiometer (MODIS) image datasets als...

.............................................................................................................................................................4 1. The role of information and communication technologies in home care......................................................5 2. The methodological framework for impact assessment..............................................................

Wind energy is a leader area of application for variable-speed generators operating on the constant grid frequency. This paper depicts the power quality enhancement in wind power system using permanent magnet synchronous generator (PMSG) and Quasi Z-source Inverter. The PMSG is connected to the power network by means of a quasi z-source inverter (qZSI). The PMSG are used by these technologies d...

Climate change is adversely affecting the development, management, and planning of surface groundwater resources. The meteorological drought becomes a severe natural problem, it can occur in any climatic region world. Thus, monitoring minimizing crucial for analyzing predicting impacts. considered basin or region-specific since atmospheric conditions are highly variable from to region. However,...

We apply an objective statistical analysis to a 6-yr, multiparameter dataset iti an c4l’ort lo tlctic~ibe the spatial dependence and inherent variation of water quality patterns in the lilorida Ray-Whitrwalc*r Hny area. Principal component analysis of 16 water quality parameters collected monthly over a 6-yr period resnlted in live prinr.ipaI COIIIponents (PC) that explained 71.8% of the varian...