Consulta: creatorFacets:"Delauney, Laurent"
Registros recuperados: 22
Data/hora: 01/06/2024 10:19:16

TEMPO: a new ecological module for studying deep-sea community dynamics at hydrothermal vents
Provedor de dados: 5
Autores: Sarrazin, Jozee; Blandin, Jerome; Delauney, Laurent; Dentrecolas, Stephane; Dorval, Philippe; Dupont, Jacky; Legrand, Julien; Leroux, D.; Leon, Pierre; Leveque, Jean-jacques; Rodier, Philippe; Vuillemin, Renaud; Sarradin, Pierre-marie.
The major goal of this project, elaborated in the frame of the STREP Exocet/D European project, was to design a first autonomous long-term imaging module equipped with a deep-sea video camera, adequate lightning and sufficient energy storage while taking advantage of most recent progress in imaging and photonics. The new ecological module TEMPO was tested and deployed during the Momareto cruise held from August 6 to September 6, 2006 on the new French oceanographic vessel Pourquoi pas?, with the ROV Victor 6000. The scientific objectives of the Momareto cruise were to study the spatial and temporal dynamics of hydrothermal communities colonizing the MoMAR zone, located on the Azores Triple Junction.
Tipo: Text
Palavras-chave: Community dynamics; Deep-sea; Imagery; Monitoring.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3597.pdf

Biofouling protection for marine environmental sensors
Provedor de dados: 5
Autores: Delauney, Laurent; Compere, Chantal; Lehaitre, Michel.
These days, many marine autonomous environment monitoring networks are set up in the world. These systems take advantage of existing superstructures such as offshore platforms, lightships, piers, breakwaters or are placed on specially designed buoys or underwater oceanographic structures. These systems commonly use various sensors to measure parameters such as dissolved oxygen, turbidity, conductivity, pH or fluorescence. Emphasis has to be put on the long term quality of measurements, yet sensors may face very short-term biofouling effects. Biofouling can disrupt the quality of the measurements, sometimes in less than a week. Many techniques to prevent biofouling on instrumentation are listed and studied by researchers and manufacturers. Very few of them...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00008/11920/8626.pdf

Report on the use of energy units in extreme environments
Provedor de dados: 5
Autores: Gilbert, Olivier; Langlais, Mickael; Delbart, Franck; Bourjaillat, Bastien; Piard, Luc; Dussud, Loic; Delauney, Laurent.
The ENVRI community (Environmental and Earth System Research Infrastructures) covers multiple scientific domains, such as oceanography, atmosphere, geophysics and biology. Whilst very different in terms of scope and technology, the research infrastructures and their personnel face common technical challenges related to the fact that field equipment is often installed in remote sites. Specifically, a large proportion of field equipment needs to be autonomous and sometimes operates in extreme conditions. Theme 1, “Technical innovation”, aims to provide and improve the technology used by environmental RIs by developing internal cooperation synergy and by collaborating with the industries that propose solutions for RIs. WP3, “Improving measurement networks:...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00630/74252/73883.pdf

Roadmap for the future
Provedor de dados: 5
Autores: Farcy, Patrick; Puillat, Ingrid; Durand, Dominique; Delauney, Laurent.
This document reports on the science strategy required to answer the targeted scientific questions, policy requirements, and societal challenges linked with the observation of the European Coastal Ocean as elaborated within the framework of the WP 1 of the JERICO-NEXT project. The structuration of JERICO-RI science strategy is in line with the scientific strategies put forward by current major international initiatives regarding the observation of the ocean (i.e., GOOS, EOOS and EUROGOOS). The main elements of those general strategies are: (1) technological innovation, (2) the enhancement of integration/coordination, (3) the developments of interactions between observation initiatives acting over different spatiotemporal scales, (4) the optimisation of the...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00627/73934/73868.pdf

NeXOS - Next generation Low-Cost Multifunctional Web Enabled Ocean Sensor Systems Empowering Marine, Maritime and Fisheries Management.
Provedor de dados: 5
Autores: Golmen, Lars G; Waldmann, Christoph; Delauney, Laurent; Delory, Eric; Memè, Simone.
This report is Deliverable 8.2 in the NeXOS project. It describes the efforts made in validating the new sensors systems developed in NeXOS, namely three different types of optical sensors, two types of acoustic sensors, sensors for fisheries and the new anti-fouling system. Additionally, data availability and timeliness though the Sensor Web Enablement software/hardware features, developed by NeXOS, was validated. The validations took place on different observation platforms operated by the NeXOS Consortium, under realistic user scenarios, in real sea conditions over a limited time. Validation serves as the final step before the demonstrations in Work Package 9. The systems described herein, were functionally and scientifically validated in the sea,...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00630/74255/73886.pdf

Toward a European Coastal Observing Network to Provide Better Answers to Science and to Societal Challenges; The JERICO Research Infrastructure
Provedor de dados: 5
Autores: Farcy, Patrick; Durand, Dominique; Charria, Guillaume; Painting, Suzanne J.; Tamminem, Timo; Collingridge, Kate; Grémare, Antoine J.; Delauney, Laurent; Puillat, Ingrid.
The coastal area is the most productive and dynamic environment of the world ocean, offering significant resources and services for mankind. As exemplified by the UN Sustainable Development Goals, it has a tremendous potential for innovation and growth in blue economy sectors. Due to the inherent complexity of the natural system, the answers to many scientific and societal questions are unknown, and the impacts of the cumulative stresses imposed by anthropogenic pressures (such as pollution) and climate change are difficult to assess and forecast. A major challenge for the scientific community making observations of the coastal marine environment is to integrate observations of Essential Ocean Variables for physical, biogeochemical, and biological...
Tipo: Text
Palavras-chave: European Research Infrastructure; JERICO and JERICO-NEXT; Coastal essential ocean variables; Coastal observatories; High frequency; Physics; Biogeochemistry and biology.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00514/62595/66955.pdf

Novel, multi-platform acoustic and optical sensors and data services developed in the NeXOS project
Provedor de dados: 5
Autores: Golmen, Lars; Delory, Eric; Zielinski, Oliver; Del Rio, Joaquin; Kvalsund, K; Pearlman, Jay; De Swart, L; Delauney, Laurent; Rieke, M; Osterhus, S.
The European Union FP7 project “Next generation, Cost- effective, Compact, Multifunctional Web Enabled Ocean Sensor Systems Empowering Marine, Maritime and Fisheries Management” (NeXOS, 2013-2017) focused on innovative approaches for two classes of insitu observations, acoustic and optical. Two types of innovative passive acoustic sensors were developed - one having a single detector with increased dynamic range and internal processing to reduce communication requirements and the other having an array of four such sensors providing directional capabilities. The optical sensors developed were Matrix fluorescence sensors, a minifluo fluorescence sensor, flow-through cavity absorption sensors, and sensors for monitoring the carbon system. Additionally,...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00631/74315/73955.pdf

A surface plasmon resonance system for the underwater detection of domoic acid
Provedor de dados: 5
Autores: Colas, Florent; Crassous, Marie-pierre; Laurent, Sebastien; Litaker, Richard W.; Rinnert, Emmanuel; Le Gall, Erwan; Lunven, Michel; Delauney, Laurent; Compère, Chantal.
Over the past decade Surface Plasmon Resonance (SPR) techniques have been applied to the measurement of numerous analytes. In this article, an SPR biosensor system deployed from an oceanographic vessel was used to measure dissolved domoic acid (DA), a common and harmful phycotoxin produced by certain microalgae species belonging to the genus Pseudo-nitzschia. During the biosensor deployment, concentrations of Pseudo-nitzschia cells were very low over the study area and measured DA concentrations were below detection. However, the in situ operational detection limit of the system was established using calibrated seawater solutions spiked with DA. The system could detect the toxin at concentrations as low as 0.1 ng mL−1 and presented a linear dynamic range...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00324/43481/42921.pdf

Technological choices for dense networks of small sensors
Provedor de dados: 5
Autores: Rolin, Jean-francois; Loubrieu, Thomas; Delauney, Laurent; Carotenuto, Federico; Dhaussy, Philippe; Obeid, Fadi; Delory, Eric.
Small, generally low-cost sensors, that are deployed in unsupervised networks (or remote locations such as the ocean) are becoming more and more important across RIs and across domain. Distributed infrastructures require efficient data transmission through a more strict effort on standards for sensor registration, sensor web enablement, sensor-embedded treatment capacities. Network-enabled sensors offer a strong potential. This deliverable will present ongoing initiatives and proves the maturity and security of the smart sensor techniques applied at large scale.
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00630/74251/73881.pdf

Biofouling protection for marine underwater observatories sensors
Provedor de dados: 5
Autores: Delauney, Laurent; Compere, Chantal; Lehaitre, Michel.
These days, many marine autonomous environment monitoring networks are set up in the world. Such systems take advantage of existing superstructures such as offshore platforms, lightships, piers, breakwaters or are placed on specially designed buoys or deep sea fix stations. The major goal for these equipments is to provide in real time reliable measurements without costly frequent maintenance. These autonomous monitoring systems are affected by a well known phenomena in seawater condition which is biofouling. Consequently, such system without efficient biofouling protection is hopeless. This protection must be applied to the sensors and to the underwater acoustic communication equipments.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00107/21801/20176.pdf

Biofouling protection by electro-chlorination on optical windows for oceanographic sensors and imaging devices
Provedor de dados: 5
Autores: Delauney, Laurent; Boukerma, Kada; Bucas, Karenn; Coail, Jean-yves; Debeaumont, Mathieu; Forest, Bertrand; Garello, Celia; Guyader, Gerard; Le Bras, Yves; Peleau, Michel; Rinnert, Emmanuel.
Oceans environmental monitoring and seafloor exploitation need in situ sensors and optical devices (cameras, lights) in various locations and on various carriers in order to initiate and to calibrate environmental models or to operate underwater industrial process supervision. For more than 10 years Ifremer deploys in situ monitoring systems for various seawater parameters and in situ observation systems based on lights and HD Cameras. To be economically operational, these systems must be equipped with a biofouling protection dedicated to the sensors and optical devices used in situ. Indeed, biofouling, in less than 15 days [1] will modify the transducing interfaces of the sensors and causes unacceptable bias on the measurements provided by the in situ...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00349/45998/45667.pdf

Spectrophotometric method for the determination of the pHT of sea water
Provedor de dados: 5
Autores: Lamandé, Nolwenn; Salvetat, Florence; Le Bihan, Caroline; Delauney, Laurent.
Cet article présente la méthode spectrophotométrique mise en place au laboratoire de métrologie de l’fremer, afin de déterminer le pHT de l’eau de mer grâce à l’indicateur coloré pourpre de m-cresol. Le but est de décrire précisément cette méthode (matériel et mode-opératoire), ses difficultés, ainsi que les paramètres ayant un impact sur le pHT. Les résultats d’une comparaison inter-laboratoires menée par le JAMSTEC (Japan Agency for Marine-Earth Science and Technology) seront présentés, suivis d’une réflexion portant sur cette méthode ainsi que les exigences océanographiques mises en jeu.
Tipo: Text
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00479/59093/61731.pdf

Harmonization in the Joint European Research Infrastructure Network for Coastal Observatories -JERICO
Provedor de dados: 5
Autores: Petihakis, George; Petersen, Wilhelm; Nair, Rajesh; Faimali, Marco; Pavanello, Giovanni; Boukerma, Kada; Delauney, Laurent; Puillat, Ingrid; Farcy, Patrick; Greenwood, Naomi.
The JERICO European research infrastructure (RI) is integrating diverse platform types such as fixed buoys, piles, moorings, drifters, FerryBoxes, gliders, HF radars, coastal cable observatories and the associated technologies dedicated to observe and monitor coastal European seas. The first steps of setting up, coordination and harmonization were done during 2011 to 2015 in the framework of FP7-JERICO (www.jerico-fp7.eu), a 4-year long infrastructure project co-funded by the European Commission with 27 partners from 17 European countries under the coordination of IFREMER. Next steps are driven in the H2020-JERICO-NEXT European project until 2019, involving 33 partners. The main objective of the JERICO consortium is to establish a Pan European approach for...
Tipo: Text
Palavras-chave: Coastal observatories; Harmonization; Biofouling; Calibration; JERICO.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00295/40665/49966.pdf

Report on the science strategy required to answer the targeted scientific questions, policy requirements, and societal challenges within JERICO-NEXT
Provedor de dados: 5
Autores: Gremare, Antoine; Durand, Dominique; Delauney, Laurent; Seppala, Jukka; Creach, Veronique; Farcy, Patrick.
This document reports on the science strategy required to answer the targeted scientific questions, policy requirements, and societal challenges linked with the observation of the European Coastal Ocean as elaborated within the framework of the WP 1 of the JERICO-NEXT project. The structuration of JERICO-RI science strategy is in line with the scientific strategies put forward by current major international initiatives regarding the observation of the ocean (i.e., GOOS, EOOS and EUROGOOS). The main elements of those general strategies are: (1) technological innovation, (2) the enhancement of integration/coordination, (3) the developments of interactions between observation initiatives acting over different spatiotemporal scales, (4) the optimisation of the...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00627/73933/73283.pdf

Novel, multi-platform acoustic and optical sensors and data services developed in the NeXOS project L. Golmen, E. Delory, O. Zielinski, J. del Rio
Provedor de dados: 5
Autores: Golmen, L; Delory, E; Zielinski, O; Del Rio, J; Kvalsund, K; Pearlman, J; De Swart, L; Delauney, Laurent; Rieke, M; Osterhus, S.
Tipo: Text
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00450/56151/57693.pdf

Report on opportunities and applications of unmanned observatories for usage across RIs
Provedor de dados: 5
Autores: Carotenuto, Federico; Delauney, Laurent; Dussud, Loic; Gioli, Benamino; Turpin, Victor; Zaldei, Alessandro.
Unmanned vehicles (UVs) are mobile platforms that can be either piloted remotely, either move autonomously using certain degrees of onboard/online intelligence. These kinds of platforms are progressively getting cheaper and accessible and they are penetrating more and more also in the world of scientific research. UVs in fact allow to investigate areas that are hardly accessible (or hazardous) for human researcher, and they are especially relevant for atmospheric, biosphere and marine domains since they allow spatialized sampling in terms of vertical profiles, horizontal transects or a combination of both. Unfortunately, the legislation regulating the usage of these kind of platforms are not moving as fast as their technical development and their spreading...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00630/74250/73880.pdf

The “JERICO Label”, Version 2
Provedor de dados: 5
Autores: Nair, Rajesh; Puillat, Ingrid; Delauney, Laurent.
This document summarizes the work done on the JERICO-Label in JERICO-NEXT, from the perspective mainly of the development of some of its “technical” aspects. The activity reported on forms part of Work Package 2 (“Harmonization of technologies and methodologies - technical strategy“) of the project – specifically, Task 2.6 (“The JERICO Label Technical Committee”). This task gathered together 16 partners from 11 European countries (Italy, Finland Germany, France, Norway, UK, Greece, Sweden, Spain, Sweden, and the Netherlands), and was co-led by two of them, OGS and HCMR.
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00630/74241/73872.pdf

Deployment of new observing systems within the JERICO-RI
Provedor de dados: 5
Autores: Puillat, Ingrid; Carlier, Antoine; Facq, Jean-valery; Rubio, Anna; Lazure, Pascal; Delauney, Laurent; Petihakis, George; Karlson, Bengt; Artigas, Felipe; Farcy, Patrick.
A key message of the JERICO-RI consortium (2014): “The complexity of the coastal ocean cannot be well understood if interconnection between physics, biogeochemistry and biology is not guaranteed. Such integration requires new technological developments allowing continuous monitoring of a larger set of parameters”. In agreement with this consideration, several new observing systems are developed, tested and deployed in the framework of the JERICO-NEXT H2020 project, amongst which a few of them will be presented as well as some preliminary results after the first deployments. Focus will be given on coastal transports and hydrology and on benthic biodiversity. In the first case, we will present a low cost 2D moored system dedicated to acquire vertical...
Tipo: Text
Palavras-chave: JERICO; JERICO-NEXT; Coastal; Ocean Observing System (OOS); Harmonization.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00437/54866/56359.pdf

Advances in measuring ocean salinity with an optical sensor
Provedor de dados: 5
Autores: Le Menn, Marc; De La Tocnaye, J. L. De Bougrenet; Grosso, P.; Delauney, Laurent; Podeur, Christian; Brault, P.; Guillerme, O.
Absolute salinity measurement of seawater has become a key issue in thermodynamic models of the oceans. One of the most direct ways is to measure the seawater refractive index which is related to density and can therefore be related to the absolute salinity. Recent advances in high resolution position sensitive devices enable us to take advantage of small beam deviation measurements using refractometers. This paper assesses the advantages of such technology with respect to the current state-of-the-art technology. In particular, we present the resolution dependence on refractive index variations and derive the limits of such a solution for designing seawater sensors well suited for coastal and deep-sea applications. Particular attention has been paid to...
Tipo: Text
Palavras-chave: Refractive index; Seawater; Density; Salinity; Refractometer.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00052/16295/13899.pdf

New set of standards for the qualification of instruments towards extreme conditions
Provedor de dados: 5
Autores: Vitale, Vito; Mazzola, Mauro; Zardi, Federico; Rolin, Jean-francois; Delauney, Laurent.
The present report aims to address the topic of robustness of instruments and equipment to extreme environmental conditions issue. We are interest to define standard test methods suitable to the specific activities of ENVRI RIs. In this sense, attention need to be devoted not only to commercial instruments, but also to technical solutions often adopted to adapt commercial and/or custom instruments to the extreme environmental conditions in which they will be deployed and will operate. In this report, for our scopes, the concept of extreme environment/conditions is always intended in a very broad sense. First two chapters are mainly devoted to provide a brief but exhaustive introduction about the concept of standards and actual landscape of international as...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00630/74253/73884.pdf

Emerging technologies, emerging markets – fostering the innovation potential of research infrastructures
Provedor de dados: 5
Autores: Kozin, Philipp; Paris, Jean-daniel; Rolin, Jean-francois; Delauney, Laurent; Carotenuto, Federico; Mazzola, Mauro; Papale, Dario; Maurissen, Diane; Haslinger, Florian; Delory, Eric; Gilbert, Olivier.
The aim of WP1-task 1.1, is to identify and analyse emerging environmental observations technologies (sensors and platforms) that could be useful to, and benefit from, Research infrastructures (RIs) to realize and achieve their market potential. The task also aims to explore technical challenges, market barriers and ongoing initiatives related to these technologies. The deliverable D1.1 is tailored to be a source of inspiration for Small and Medium Enterprises (SMEs), while investigating new business opportunities, as well as for the EU bodies, pointing them the specific areas requiring additional attention and financing. Environmental observations performed by RIs are dedicated to answering the grand challenges (ENVRI+ Theme 4). This is a tremendous...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00630/74249/73879.pdf

Increasing Reliability: Smart Biofouling Prevention Systems
Provedor de dados: 5
Autores: Delauney, Laurent; Ralston, Emilie; Zargiel-hunsucker, Kelli.
Tipo: Text
Palavras-chave: Biofilm; Biofouling; Camera; In situ; Lights; Long term; Marine; Monitoring; Optical; Protection; Sensors.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00630/74233/73867.pdf