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Urban areas developed above salt-karst systems are particularly sensitive to ground deformation processes driven by dissolution, suffosion, and anthropogenic disturbances. Detecting and monitoring these processes in densely built environments requires observation techniques capable of capturing small-scale morphological changes with high spatial resolution and repeatability. This study demonstrates the use of recurrent UAV-based LiDAR surveys to detect and measure ground instability in the town of Slanic Prahova (...

Accurate monitoring of crop phenology is essential for yield estimation, growing season modeling, and climate adaptation in agriculture. While freely available satellite archives provide broad spatial coverage, their temporal frequency is often insufficient for capturing the rapid phenological transitions characteristic of crops. This study addresses that gap through a multitemporal analysis of the Normalized Difference Vegetation Index (NDVI) derived from a time series of 119 PlanetScope satellite images at 3 m s...

This research addresses the design, integration, and validation of a complex methodology for wetland monitoring, using as case studies two peat bogs located in the Maramures Mountains Natural Park, Romania. The study is part of a larger research effort concerning the assessment of the current ecological status of internationally important wetlands in the trans-Carpathian region of Romania, Ukraine, and Slovakia, through the development of an integrated monitoring system based on advanced geomatic technologies. Thi...

The research analyses agricultural unused land (AUL) identified within the cadastral territory of Velke Trencianske Stankovce (western Slovakia) with the objective of evaluating restoration potential and determining suitable management pathways for reintroduction into agricultural use. The methodological framework combines Sentinel-2 vegetation indices, LPIS data, soil characteristics, and site-specific attributes including terrain configuration, parcel accessibility, and environmental constraints. Restoration pot...

Lake water quality is an important sign of ecosystem health, biodiversity, and sustainable management of freshwater resources. As human activities, climate change, and eutrophication increase, the need for efficient and consistent monitoring methods grows. Traditional field sampling provides accurate local data but is limited by how often and where samples are collected, as well as by high costs. Satellite remote sensing is a practical way to monitor inland water bodies, enabling repeated, large-scale assessments ...

Rapid warming along the Antarctic Peninsula has intensified surface melting on maritime glaciers, accelerating ablation and contributing to increasingly negative surface mass balances, particularly on Livingston Island, South Shetlands Islands, Antarctica. Continuous, weather-independent monitoring of snow and ice conditions is therefore essential for assessing seasonal variability and its implications for glacier evolution. A multi-temporal dataset of Sentinel-1 Synthetic Aperture Radar (SAR) imagery acquired bet...

This study compares multiple approaches for surface water mapping using multi-sensor satellite data. Open-access imagery from Sentinel-2 (optical) and Sentinel-1 (SAR) was used for three study sites in Bulgaria. The optical dataset consisted of three Level-2A images acquired under near cloud-free conditions, while the radar dataset included three Ground Range Detected images acquired on dates closest to the optical imagery. Surface water extraction was performed using single- and multi-index approaches for the opt...