A new method for grassland vegetation dynamics monitoring was developed based on the linear time trends (LTT) estimation and change vector analysis (CVA) using SPOT-VGT imagery. Firstly, seasonally integrated normalized difference vegetation index (SINDVI) was calculated by using 10-day NDVI. Then by evaluating spatially averaged SINDVI of vegetated areas, the apparent change periods were ident...

Segmentation of vegetated areas is inevitable in precision agriculture and has high importance in urban area with social and environmental aspects. This paper addresses the segmentation of fused high resolution multispectral satellite images into distinct regions such as vegetation, buildings and barren land. Even though the IHS based fusion of satellite imagery improves the visual interpretati...

The submerged–flow (SF) wetland concept offers high organics and solids removal at relatively low cost for construction, operation, and maintenance. In this comparative study, vegetated and non–vegetated SF wetlands were investigated for their ability to treat primary lagoon effluent. The experimental design was comprised of three vegetated and three non–vegetated SF wetland beds (3 m Ü 1 m Ü 0...

In this paper we present preliminary results on the applicability of differential SAR interferometry to detect and measure land movement in the vegetated areas where only few targets or small areas maintain coherence. Strong temporal decorrelation in the vegetated areas makes traditional DINSAR impracticable and, therefore, techniques that are based on phase values of single pixels and long tim...

Temperate marine rocky habitats may be alternatively characterized by well vegetated macroalgal assemblages or barren grounds, as a consequence of direct and indirect human impacts (e.g. overfishing) and grazing pressure by herbivorous organisms. In future scenarios of ocean acidification, calcifying organisms are expected to be less competitive: among these two key elements of the rocky subtid...

1 Assessing species composition and its changes through time across broad 2 geographic regions are time consuming and difficult endeavors. The synoptic view 3 provided by imaging remote sensors offers an alternative. But while many studies have 4 developed procedures for assessing biodiversity using multiand hyper-spectral imagery, 5 they may only provide snapshots at particular months/seasons ...