Search results for "Secchi"

showing 10 items of 10 documents

Phytoplankton distribution in Mar Menor coastal lagoon (SE Spain) during 2017.

2020

The Mar Menor is a Spanish coastal lagoon of great ecological and economic interest. The agricultural and tourist activities developed in the surroundings of the lagoon, together with the modifications in its channels of connection with the Mediterranean Sea, have notably affected the quality of its waters, which is altering the natural balance of the ecosystem. In this work, an analysis of the density of phytoplankton present in the lagoon between the months of May to December 2017 was carried out. The results indicate a significant increase in phytoplankton density between 2500 and 67,300 cells/mL compared to previous data of 1981 (between 10 and 500 cells/mL). Concentration of Chlorophyl…

0106 biological sciences010504 meteorology & atmospheric sciencescoastal lagoonnanoplanktonic algaeDistribution (economics)Ocean Engineering01 natural scienceslcsh:OceanographyMediterranean sealcsh:VM1-989PhytoplanktonEcosystemlcsh:GC1-15810105 earth and related environmental sciencesWater Science and TechnologyCivil and Structural Engineeringbusiness.industry010604 marine biology & hydrobiologySecchi diskSpecies diversitylcsh:Naval architecture. Shipbuilding. Marine engineeringOceanographyeutrophicationAgriculturephytoplanktonEnvironmental scienceWater treatmentecologybusinessEutrophication
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Integrated satellite data fusion and mining for monitoring lake water quality status of the Albufera de Valencia in Spain

2015

Abstract Lake eutrophication is a critical issue in the interplay of water supply, environmental management, and ecosystem conservation. Integrated sensing, monitoring, and modeling for a holistic lake water quality assessment with respect to multiple constituents is in acute need. The aim of this paper is to develop an integrated algorithm for data fusion and mining of satellite remote sensing images to generate daily estimates of some water quality parameters of interest, such as chlorophyll a concentrations and water transparency, to be applied for the assessment of the hypertrophic Albufera de Valencia. The Albufera de Valencia is the largest freshwater lake in Spain, which can often pr…

Environmental EngineeringManagement Monitoring Policy and LawRemote SensingMachine LearningWater SupplyWater QualityData MiningSpacecraftWaste Management and DisposalImage resolutionEcosystemRemote sensingGround truthSecchi diskLake managementGeneral MedicineData FusionLakesSpainThematic MapperTemporal resolutionEnvironmental scienceSpatial variabilityWater qualityModerate-resolution imaging spectroradiometerEnvironmental Monitoring
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Fernand de Montessus de Ballore, à la naissance de la sismologie moderne

2012

Fernand de Montessus de Ballore (1851-1923) est considéré comme un des précurseurs de la sismologie moderne. On lui doit une importante production scientifique dans ce domaine : il a notamment établi, par des relevés rigoureux et nombreux, que les tremblements de terre étaient en relation avec la géologie et non avec les phases de la lune ou les volcans souterrains comme on le supposait au début du XXe siècle. Officier de l'armée française, alors en garnison à Nîmes, il écrit en 1886 au scientifique genevois Louis Soret (1827-1890), qui fait partie de la commission suisse chargée d'étudier les séismes dans ce pays. C'est l'analyse de cette lettre à Soret qui fait l'objet de notre article.

FehrSalvadortremblement de terreseismeSecchiorogenèsePerrey[ SHS.HISPHILSO ] Humanities and Social Sciences/History Philosophy and Sociology of SciencesSoret[SHS.HISPHILSO]Humanities and Social Sciences/History Philosophy and Sociology of Sciences[SHS.HISPHILSO] Humanities and Social Sciences/History Philosophy and Sociology of SciencesCornuthermodiffusionsyzygieFouqué
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«MUOVERSI DENTRO LE PAROLE» Incursioni nel romanzo italiano contemporaneo (2008-2021)

2022

Il saggio arricchisce con una nuova uscita la collana “I quaderni dello Specchio di Carta” il cui obiettivo è quello di monitorare il romanzo italiano di oggi attraverso la lettura e l’analisi delle opere di alcuni fra i più rappresentativi scrittori viventi. Il volume aggiunge una tessera in più a questa mappatura in progress del presente prendendo in esame opere di Giorgio Vasta, Nicola Lagioia, Giuseppe Genna, Andrea Gentile, Gabriella Kuruvilla, Vanessa Ambrosecchio e Alberto Samonà. Attraverso affondi mirati, che selezionano di volta in volta un romanzo esemplare, si offre un’attenta ricostruzione delle trame intertestuali e si approfondiscono le singole opere per meglio definire i …

Gabriella Kuruvilla Vanessa AmbrosecchioAlberto SamonàGiorgio VastaGiuseppe Gennalinguaggioromanzo italiano contemporaneoNicola LagioiaAndrea Gentile
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«Racconto il tormentato bisogno di senso che attraversa l'oggi» [rec. a V. Ambrosecchio, "Cico c'è"]

2004

All'insegna di una scrittura metamorfica e visionaria, Vanessa Ambrosecchio racconta il nostro tempo, scisso fra mito della riproduzione e pratica della sterilità. L'ardità del nostro mondo è raccontata attraverso la metafora del corpo femminile, ordigno misteriosamente perfetto, luogo sovrano della forza creatrice.

Settore L-FIL-LET/10 - Letteratura Italianaletteratura corpo ambrosecchio
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Vittorio De Sica. Anna Masecchia configura un’antropologia italiana nelle maschere dell’eclettico

2013

About a book by Anna Masecchia on De Sica’s work as an actor

Settore L-FIL-LET/14 - Critica Letteraria E Letterature ComparateMasecchia De Sica
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Turbidez y profundidad de disco de Secchi con Sentinel-2 en embalses con diferente estado trófico en la Comunidad Valenciana

2019

[ES] En los estudios de calidad de aguas por teledetección, uno de los principales indicadores es la transparencia o turbidez del agua. La transparencia puede ser medida in situ mediante la profundidad del disco de Secchi (SD), y la turbidez con un turbidímetro. En las últimas décadas se han utilizado diferentes relaciones entre bandas de diferentes sensores obtenidas por teledetección para la estimación de estos parámetros. En este trabajo, a partir de datos de campo obtenidos a lo largo de 2017 y 2018 en embalses de la cuenca del Júcar con gran variedad de estados tróficos, se han calibrado diferentes índices y bandas para poder estimar la transparencia a partir de imágenes Sentinel-2 (S2…

Turbidez010504 meteorology & atmospheric sciencesField dataGeography Planning and Development0211 other engineering and technologiesSoil science02 engineering and technology01 natural sciencesTurbidityApproximation errorJúcar basin reservoirsDissolved organic carbonEarth and Planetary Sciences (miscellaneous)Turbidity021101 geological & geomatics engineering0105 earth and related environmental sciencesSuspended solidsAtmospheric correctionSecchi diskSpectral bandsEutrophicationEmbalses cuenca JúcarDisco de SecchiEnvironmental scienceWater qualitySentinel-2Eutrofización
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Landscape Urbanism and Architecture of the Voids

2017

Il paper è focalizzato sull'importanza che la nozione di "vuoto" riveste nello sviluppo del Landscape Urbanism. Vengono prese in considerazione le teorie di Secchi e Koolhaas per quanto riguarda la possibilità di una nuova ricezione dll'idea di vuoto. Inoltre l'intervento Chassé Terrain a Breda ddegli OMa è analizzato in modo da mostrare come esso costituisce una tappa importante per i successivi progetti urbanistici. This paper is focused on the relevance of the idea of “void” for the development of landscape urbanism. The theories of Secchi and Koolhaas are considered as far as a new acceptance of void is concerned. Furthermore the highly influential Chassé Terrain intervention in Breda b…

VoidCivil engineeringLandscape Urbanism; Void; OMA; Chassè Terrain; Secchi; KoolhaasUrban planningUrbanizationRealmLandscape urbanismSociologyArchitectureKoolhaasOMAGeneral Environmental ScienceVuotobiologybusiness.industryChassè TerrainSettore ICAR/14 - Composizione Architettonica E UrbanaVuoto; Progetto UrbanoSecchibiology.organism_classificationProgetto UrbanoBredaLandscape architectureLandscape UrbanismAestheticsEcological urbanismGeneral Earth and Planetary Sciencesbusiness
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Desafíos y oportunidades de Sentinel-2 en la monitorización de las aguas continentales

2023

En los ecosistemas de agua dulce, la escasez y la contaminación de este recurso está promoviendo que los organismos gubernamentales incluyan en sus agendas estrategias para mitigar esta situación a través de una gestión sostenible. La Directiva Marco del Agua establece entre sus requerimientos la monitorización del estado ecológico de las aguas continentales para determinar su calidad. Las imágenes satelitales ofrecen una visión sinóptica y continua a partir de la que es posible derivar métricas del estado ecológico. Esas métricas son un complemento a los tradicionales muestreos ya que se incrementa la cobertura espacial y la periodicidad en la monitorización. Sentinel-2, con su sensor Mult…

inland waterssupervised classificationsentinel-2UNESCO::FÍSICAoptical water typesremote sensingmachine learningtipos ópticos de aguasaprendizaje automáticoteledeteccióncalidad de las aguasaguas continentalesdisco de secchiclasificación supervisadacorrección atmosféricaUNESCO::CIENCIAS DE LA TIERRA Y DEL ESPACIOconcentración de clorofilaUNESCO::GEOGRAFÍA
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Assessment of Sentinel-2-MSI Atmospheric Correction Processors and In Situ Spectrometry Waters Quality Algorithms

2022

The validation of algorithms developed from in situ reflectance to estimate water quality variables has the challenge of atmospheric correction (AC) when applied to satellite images. Estimating water quality variables from satellite images requires an accurate estimation of remote sensing reflectances (Rrs) which vary according to the AC applied. Validation processes for both Rrs and water quality algorithms were carried out, relating the in situ Rrs (convoluted to Sentinel-2-MSI spectral response function) with the satellite Rrs coming from different ACs (C2RCC, C2X, C2XC, and Polymer), and also relating the in situ water quality variable data with estimated water quality variable values, …

remote sensing; C2RCC; C2X; C2XC; Polymer; Secchi disk depth; total suspended solids; CDOM; chlorophyll a; phycocyaninGeneral Earth and Planetary SciencesRemote Sensing
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