A5039446436- Remote Sensing in Agriculture
- Remote Sensing and LiDAR Applications
- Fire effects on ecosystems
- Flood Risk Assessment and Management
- Land Use and Ecosystem Services
- Fish Biology and Ecology Studies
- Fish Ecology and Management Studies
- Species Distribution and Climate Change
- Marine and coastal ecosystems
- Marine Ecology and Invasive Species
- Fish biology, ecology, and behavior
- Coastal wetland ecosystem dynamics
- Conservation, Biodiversity, and Resource Management
- Oil Spill Detection and Mitigation
- Aquatic Ecosystems and Phytoplankton Dynamics
Goulandris Natural History Museum
2020-2024
Aristotle University of Thessaloniki
2013-2017
Mapping and assessment of water-related ecosystems is a challenging task that requires advanced processing techniques with clear rules standards in terminology definition class features. These are hydrologically ecologically connected at catchment level co-exist within human context. The SWOS (Satellite based Wetland Observation Service - Horizon 2020) national service case for mapping assessing the 10 Greek Ramsar wetland sites their areas built on requirements Convention Wetlands Aichi...
The wetlands are often coupled with anthropogenic systems. This makes them highly dynamic, and thus difficult to map monitor from space. Sentinel-1 constellation allows monitoring land changes regardless of cloud conditions a high frequency pass. We use time series 33 dual-polarized images 2016 seasonal at the artificial Lake Kerkini, in Greece. accessed processed Google Earth Engine via Flask web application. Points change within were determined according an omnibus-test statistic. results...
Aquatic vegetation is an essential component of lake ecosystems, used as a biological indicator for in situ monitoring within the Water Framework Directive. We developed hierarchical object-based image classification model with multi-seasonal Sentinel-2 imagery and suitable spectral indices order to map aquatic Mediterranean oligotrophic/mesotrophic deep lake; we then applied another similar abiotic biotic characteristics. Field data from survey macrophytes, undertaken on same dates EO data,...
The ArcFuel project aims to develop a generic methodology, which will enable the regular production of consistent forest vegetation fuel maps over Europe. Such can be used simulate fire scenarios and support design implementation effective prevention mitigation measures against fires. uses results recent effort JRC Ispra, aimed create standardized scheme types, representative occurring in European regions. Based on this approach using existing spatial datasets multi-temporal remotely sensed...
Efficient forest fire management is a key element for alleviating the catastrophic impacts of wildfires. Overall, effective response to events necessitates adequate planning and preparedness before start season, as well quantifying environmental in case Moreover, estimation danger provides crucial information required optimal allocation distribution available resources. The Greek National Observatory Forest Fires (NOFFi)—established by Forestry Service collaboration with Laboratory...
This study investigates the performance of published bio-optical remote sensing indices/algorithms for monitoring water quality changes in Lake Karla, Greece, caused by Storm Daniel after September 2023 flooding event. Commonly applied indices were utilised to estimate chlorophyll-a (Chl-a) and total suspended solids (TSS) using Sentinel-2 high-resolution optical imagery. In situ measurements undertaken samples collected during pre-flooding period, post-flooding, one-year post-flood,...
This study provides an annotated checklist of the freshwater fish species recorded in lentic ecosystems Greece. Species distributional data were derived from extensive review published and unpublished sources evaluated for their consistency, adequacy reliability. Overall, 650 (149 natural 501 artificial) investigated which, 480 fishless or unavailable. In remaining 170 ecosystems, 122 taxa (belonging to 22 families 57 genera). Some records concerned with extirpated populations, doubtful...
In recent decades, there is an increasing need for harmonised and accurate information on the status extent of forests. However, delineating forest areas a complex task, since existence more than 100 definitions worldwide causes considerable discrepancies in forested area estimates. The aim this work was to examine potential geographic object based image analysis (GEOBIA) very high spatial resolution imagery discriminate following two different northern Greece. particular, we examined...
A key issue in modern fire management planning is the accurate fuel type mapping, required at many different spatial and temporal scales. Fuel classification critical for improving prevention schemes, developing dispersion models designing effective measures mitigating impacts of a potential wildfire event on ecosystem. Remote sensing offers to provide spatially distributed information types it has been widely used both regional local scale. Theaim this study develop evaluate mapping...
Climate change and overall temperature increase results in changes forest cover high elevations. Due to the long life cycle of trees, these are very gradual can be observed over periods time. In order use remote sensing imagery for this purpose it needs have spatial resolution been acquired at least 50 years ago. At moment, only type with characteristics is historical black white aerial photographs. This study used an photograph from 1945 map Olympus National Park, that date. An object-based...
Fire danger forecast constitutes one of the most important components integrated fire management since it provides crucial information for efficient pre-fire planning, alertness and timely response to a possible event. The aim this work is develop an index that has capability predicting accurately on mid-term basis. methodology currently under development based innovative approach employs dry fuel spatial connectivity as well biophysical topological variables reliable prediction danger. More...