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View article: Towards Automated Detection and Localization of Red Deer Cervus elaphus Using Passive Acoustic Sensors during the Rut
Towards Automated Detection and Localization of Red Deer Cervus elaphus Using Passive Acoustic Sensors during the Rut Open
Passive acoustic sensors have the potential to become a valuable complementary component in red deer Cervus elaphus monitoring providing deeper insight into the behavior of stags during the rutting period. Automation of data acquisition an…
View article: Ungulate Detection and Species Classification from Camera Trap Images Using RetinaNet and Faster R-CNN
Ungulate Detection and Species Classification from Camera Trap Images Using RetinaNet and Faster R-CNN Open
Changes in the ungulate population density in the wild has impacts on both the wildlife and human society. In order to control the ungulate population movement, monitoring systems such as camera trap networks have been implemented in a non…
View article: UAV areal imagery-based wild animal detection for sustainable wildlife management 
UAV areal imagery-based wild animal detection for sustainable wildlife management  Open
<p>The surveillance of wild animal populations is important for wildlife sustainability, conservation and management. It has been estimated that the UAV-based survey of 100 ha large territory is ~10 times less time-consuming in compa…
View article: Analysis of red deer Cervus elaphus behaviour and habitat modelling using data from GPS collars and available geospatial data products
Analysis of red deer Cervus elaphus behaviour and habitat modelling using data from GPS collars and available geospatial data products Open
<p>Understanding of wild animal behaviour and habitat preference are important factors for further assessment of their living space capacity. Red deer Cervus elaphus is an important game species which population has increased from 54…
View article: Separability of Mowing and Ploughing Events on Short Temporal Baseline Sentinel-1 Coherence Time Series
Separability of Mowing and Ploughing Events on Short Temporal Baseline Sentinel-1 Coherence Time Series Open
Short temporal baseline regular Synthetic Aperture Radar (SAR) interferometry is a tool well suited for wide area monitoring of agricultural activities, urgently needed in European Union Common Agricultural Policy (CAP) enforcement. In thi…
View article: Spatio-Temporal Variability of Phytoplankton Primary Production in Baltic Lakes Using Sentinel-3 OLCI Data
Spatio-Temporal Variability of Phytoplankton Primary Production in Baltic Lakes Using Sentinel-3 OLCI Data Open
Phytoplankton primary production (PP) in lakes play an important role in the global carbon cycle. However, monitoring the PP in lakes with traditional complicated and costly in situ sampling methods are impossible due to the large number o…
View article: SentiLake - Sentinel-2 satellite data-based service for monitoring of Latvian lakes
SentiLake - Sentinel-2 satellite data-based service for monitoring of Latvian lakes Open
<p>Lakes and water reservoirs are important ecosystems providing such services as drinking water, recreation, support for biodiversity as well as regulation of carbon cycling and climate. There are about 117 million lakes worldwide a…
View article: Validation and Comparison of Water Quality Products in Baltic Lakes Using Sentinel-2 MSI and Sentinel-3 OLCI Data
Validation and Comparison of Water Quality Products in Baltic Lakes Using Sentinel-2 MSI and Sentinel-3 OLCI Data Open
Inland waters, including lakes, are one of the key points of the carbon cycle. Using remote sensing data in lake monitoring has advantages in both temporal and spatial coverage over traditional in-situ methods that are time consuming and e…
View article: Comparison of Lake Optical Water Types Derived from Sentinel-2 and Sentinel-3
Comparison of Lake Optical Water Types Derived from Sentinel-2 and Sentinel-3 Open
Inland waters play a critical role in our drinking water supply. Additionally, they are important providers of food and recreation possibilities. Inland waters are known to be optically complex and more diverse than marine or ocean waters.…
View article: Dubultzvaigžņu spektroskopija Galaktikas diska un halo populācijās
Dubultzvaigžņu spektroskopija Galaktikas diska un halo populācijās Open
Darbā veikta Galaktikas diska un halo populācijas dubultzvaigžņu salīdzinoša analīze. Tika modelēti zvaigžņu izlases augstas izšķirtspējas absorbcijas spektri optiskajā diapazonā ar mērķi aprēķināt atmosfēras ķīmisko sastāvu, precizēt kodo…