Pixel-based (PB) and geographic-object-based (GEOBIA) classification approaches allow the extraction of different objects from multispectral images (MS). The primary goal this research was analysis UAV imagery applicability accuracy assessment MLC SVM algorithms within PB GEOBIA approaches. secondary to use metrics determine which two tested (SVM MLC) most reliably distinguishes olive tree crowns approach is more accurate (PB or GEOBIA). third add false polygon samples for Correctness (COR),...

Since the beginning of 21st Century, Europe has been affected by destructive floods. European Union Member States have an obligation to develop flood hazard and risk maps as support Flood Risk Management Plan (FRMP). The main objective this study is propose a methodological framework for assessment pluvial flash floods in Croatia at catchment level, which can be integrated into FRMP. Therefore, methodology based on source–pathway–consequence approach presented, complies with EU Floods...

In recent decades, precision agriculture and geospatial technologies have made it possible to ensure sustainability in an olive-growing sector. The main goal of this study is the extraction olive tree canopies by comparing two approaches, first which related geographic object-based analysis (GEOBIA), while second one based on use vegetation indices (VIs). research area a micro-location within Lun olives garden, island Pag. unmanned aerial vehicle (UAV) with multispectral (MS) sensor was used...

Multibeam echosounders (MBES) have become a valuable tool for underwater floor mapping. However, MBES data are often loaded with different measurement errors. This study presents new user-friendly and methodological semi-automatic approach of point cloud post-processing error removal. The St. Anthony Channel (Croatia) was selected as the research area because it is regarded one most demanding sea or river passages in world protected significant landscape by Šibenik-Knin County. two main...

The accurate extraction of a coastline is necessary for various studies coastal processes, as well the management and protection areas. Very high-resolution satellite imagery has great potential extraction; however, noises in spectral data can cause significant errors. Here, we present newly developed Coastal Extraction Tool (CET) that overcomes such errors allows time-efficient automated based on combination WorldView-2 (WV-2) multispectral stereo-pair-derived digital surface model (DSM)....

Abstract: Modern geoinformation technologies, such as remote sensing satellite missions and classification methods, are becoming increasingly prominent in land cover classification. Due to the emergence of high spatial resolution with improved temporal spectral resolutions, Worldview-3, this approach enabled new possibilities management. To provide an in-depth analysis possibilities, study reviews methods using WorldView-3 imagery. With 29 different channels a 1.2 m, Worldview-3...

Gully erosion is one of the most prominent natural denudation processes Mediterranean. It causes significant soil degradation and sediment yield. Most traditional field methods for measurement erosion-induced spatio-temporal changes are time labor consuming, while their accuracy precision highly influenced by various factors. The main research question this study was how approach sampling can be automated upgraded, satisfying required accuracy. VERTICAL method developed as a fully...

Marine litter is a growing threat to the marine environment. Mapping of becoming increasingly important detect its potential hotspots and prevent their spread. In this paper, applicability multibeam echo sounder (MBES) WASSP S3 remotely operated underwater vehicle (ROV) Chasing M2 was tested in detection mapping on seafloor within wider area St. Ante Channel (Šibenik, Croatia). Also, precision assessment at different cruising speeds. Results have shown that can be used effectively for...

Terrestrial LiDAR scanning (TLS) has in preceding years emerged as one of the most accurate and reliable geospatial methods for creation very-high resolution (VHR) models over gullies other complex geomorphic features. Rough terrain morphology rapid erosion induced spatio-temporal changes (STCs) can lead to significant challenges multi-temporal field TLS surveys. In this study, we present a newly developed systematic framework optimization terrestrial surveys through implementation thorough...

The karst landscapes of the Mediterranean are regarded as some most vulnerable, fragile, and complex systems in world. They hold a particularly interesting group small islands with distinctive, recognizable landscape. Republic Croatia (HR), which has one indented coasts world, is known for them. In this paper, we analyzed spatio-temporal changes (STCs) landscape Ošljak Island, smallest inhabited island HR. Landuse/landcover change (LUCC) analysis been conducted from 1944 to 2021. methodology...

Urban gravitational zones (UGZ) are related to cities' functions and population size. In strategic regional territorial planning adequate tools detailed data rarely used. This issue is not foreign Croatia other countries. How should the UGZ be accurately delineated for each city? A combination of Huff's model GIS-based multicriteria decision analysis (GIS-MCDA) was used delineate UGZ. total, 95 criteria grouped into ten were The research resulted in a new methodological framework deriving...

The investigation was carried out during the year 2017-2018 to study air pollution tolerance index and anticipated performance of three tree species growing alongside selected roads in sub-temperate condition Himachal Pradesh. were Toona ciliata, Ficus palmata Grewia optiva. In chlorophyll content leaf abstract pH varies from 1.28-2.04 mg g-1 5.69-6.38, respectively which increased with increasing distance highways. Whereas, relative water ascorbic acid decreased road respective values...

Infiltration models and impervious surface have gained significant attention in recent years as crucial tools urban environmental planning, to assess the extent of land-surface changes their impacts on hydrological processes. These are important for understanding dynamics ecological urbanization improvement sustainable land-use planning stormwater-management strategies. Due fact that many authors partially or entirely overlook significance infiltration process geographic information system...

Šume primorskih četinjača, sa svojom ekološkom, ekonomskom, estetskom i društvenom funkcijom, predstavljaju važan dio europskih šumskih zajednica. Osnovni cilj ovoga rada je usporediti najkorištenije GEOBIA (engl. Geographic Object-Based Image Analysis ) klasifikacijske algoritme Random Trees – RT, Maximum Likelihood ML, Support Vector Machine SVM s ciljem izdvajanja šuma četinjača na visoko-rezolucijskom WorldView-3 snimku unutar topografskog slijevnog područja naselja Split. Metodološki...

Anticipated Performance Index (API) is an innovative ecological approach in selecting plant species for reducing air pollution, using Air Pollution Tolerance (APTI) and socio-economic parameters. The present study evaluated API of 11 (6 trees 5 shrubs) the recommendation green belt establishment near national highway expansion region Kiratpur-Nerchowk expressway. scrutiny results revealed that tolerance capacity along with their performance grade a justified most suitable species, which can...

<p>Flood hazard prediction is a critical component of flood risk assessment, management plans, and implementation mitigation measures. In the EU, there currently growing interest in floods caused by extreme heavy rainfall, commonly known as pluvial floods. Due to rapid development computational remote sensing technology, well public availability high-resolution spatial data, are now simulated using integrated hydrological-hydraulic approaches consisting time-dependent 2D...