| Marina ANTONESCU1, Georgeta BANDOC2
Abstract. This study analyzes the spatial distribution and interannual variability of the solar resource in Romania using hourly time series derived from satellite data and geostatistical modeling in a GIS environment. The analysis focuses on the main components of the surface radiation balance—global horizontal irradiance (GHI), direct normal irradiance (DNI), diffuse horizontal irradiance (DHI), and the direct horizontal component (BHI), derived from DNI—calculated at seasonal and annual scales for the period 2004–2025. Given the limited availability of ground-based radiometric observations, the integration of long-term satellite data with GIS tools and geostatistical modeling techniques enables an integrated analysis of the spatial patterns and interannual variability of solar radiation in Romania, while also providing an analytical framework for subsequent assessments of solar energy potential Keywords: solar resource assessment, satellite-derived irradiance, geostatistical interpolation, interannual variability, Romania. DOI 10.56082/annalsarscieng.2026.1.16 Read full article 1PhD (ABD), Faculty of Geography, University of Bucharest, Bucharest, Romania; Meteo Romania (National Meteorological Administration), Bucharest, Romania; (marina_antonescu@yahoo.com). 2Prof., PhD, Faculty of Geography, University of Bucharest, Bucharest, Romania; Academy of Romanian Scientists, Bucharest, Romania; (bandoc@geo.unibuc.ro). |
PUBLISHED in Annals Academy of Romanian Scientists Series on Engineering Sciences
ISSN PRINT 2066 – 6950 ISSN ONLINE 2066 – 8570 |
