Search results for " Radiometric"

showing 4 items of 4 documents

Reconstructing Bioinvasion Dynamics Through Micropaleontologic Analysis Highlights the Role of Temperature Change as a Driver of Alien Foraminifera I…

2021

Invasive alien species threaten biodiversity and ecosystem structure and functioning, but incomplete assessments of their origins and temporal trends impair our ability to understand the relative importance of different factors driving invasion success. Continuous time-series are needed to assess invasion dynamics, but such data are usually difficult to obtain, especially in the case of small-sized taxa that may remain undetected for several decades. In this study, we show how micropaleontologic analysis of sedimentary cores coupled with radiometric dating can be used to date the first arrival and to reconstruct temporal trends of foraminiferal species, focusing on the alien Amphistegina lo…

0106 biological sciencesSciencesea warmingPopulationBiodiversityOcean EngineeringQH1-199.5Aquatic ScienceOceanography010603 evolutionary biology01 natural sciencesInvasive speciesinvasive speciesradiometric datingForaminiferaMediterranean seaforaminifera invasive species lessepsian invasion Mediterranean Sea radiometric dating sea warming SSTMediterranean SeaeducationForaminifera -- Mediterranean SeaWater Science and TechnologyGlobal and Planetary Changeeducation.field_of_studybiologyEcology010604 marine biology & hydrobiologyQforaminiferaGeneral. Including nature conservation geographical distributionSettore GEO/01 - Paleontologia E Paleoecologiabiology.organism_classificationSSTSea surface temperatureGeographyTaxonIntroduced organisms -- Mediterranean SeaRadiometric datingRadioactive datingFrontiers in Marine Science
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Hyperspectral and multispectral perspectives on the prehistoric cultural landscape; the ground-truthed chemical character of prehistoric settlement a…

2006

Remote Sensing RadiometricSettore ICAR/06 - Topografia E Cartografia
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Environmental reconstruction of Trapani saltmarsh (southwestern Sicily) during the last 80 years. An integrated approach by using benthic foraminifer…

2013

Sicily Saltmarsh Pollution Benthic Foraminifera Metals Radiometric Ages
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Automatic Relative Radiometric Normalization of Bi-Temporal Satellite Images Using a Coarse-to-Fine Pseudo-Invariant Features Selection and Fuzzy Int…

2022

Relative radiometric normalization (RRN) is important for pre-processing and analyzing multitemporal remote sensing (RS) images. Multitemporal RS images usually include different land use/land cover (LULC) types; therefore, considering an identical linear relationship during RRN modeling may result in potential errors in the RRN results. To resolve this issue, we proposed a new automatic RRN technique that efficiently selects the clustered pseudo-invariant features (PIFs) through a coarse-to-fine strategy and uses them in a fusion-based RRN modeling approach. In the coarse stage, an efficient difference index was first generated from the down-sampled reference and target images by combining…

VDP::Teknologi: 500General Earth and Planetary Sciencesmulti-temporal satellite imagesrelative radiometric normalization (RRN)change detectionimage fusionpseudo-invariant features (PIFs)Remote Sensing
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