Výsledky vyhledávání - "Audrey Hohmann"

Akademický článek

Mapping of Clay Montmorillonite Abundance in Agricultural Fields Using Unmixing Methods at Centimeter Scale Hyperspectral Images

Autor: Etienne Ducasse, Karine Adeline, Audrey Hohmann, Véronique Achard, Anne Bourguignon, Gilles Grandjean, Xavier Briottet

Publikováno v: Remote Sensing, Vol 16, Iss 17, p 3211 (2024)

The composition of clay minerals in soils, and more particularly the presence of montmorillonite (as part of the smectite family), is a key factor in soil swell–shrinking as well as off–road vehicle mobility. Detecting these topsoil clay minerals

Externí odkaz: https://doaj.org/article/93ac201c9b90497eb78ca898e8de7f0a

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Akademický článek

Montmorillonite Estimation in Clay–Quartz–Calcite Samples from Laboratory SWIR Imaging Spectroscopy: A Comparative Study of Spectral Preprocessings and Unmixing Methods

Autor: Etienne Ducasse, Karine Adeline, Xavier Briottet, Audrey Hohmann, Anne Bourguignon, Gilles Grandjean

Publikováno v: Remote Sensing, Vol 12, Iss 11, p 1723 (2020)

Clay minerals play an important role in shrinking–swelling of soils and off–road vehicle mobility mainly due to the presence of smectites including montmorillonites. Since soils are composed of different minerals intimately mixed, an accurate est

Externí odkaz: https://doaj.org/article/addbaf7a76df44a8b2565b49eb589f3f

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Serious games as a social learning tool in formalizing the artisanal and small-scale mining sector in African territories

Autor: Fenintsoa Andriamasinoro, Jean-Michel Angel, Audrey Hohmann, Jean-Marc Douguet

Publikováno v: The Extractive Industries and Society
The Extractive Industries and Society, Elsevier, 2020, 7, pp.1108-1120. ⟨10.1016/j.exis.2020.07.017⟩

International audience; The literature states that the predominantly “top-down only” approach classically taken to formalise the complex sector of artisanal and small-scale mining (ASM) in Africa has resulted in the design of ineffective and/or i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b56c73258c834ebdd11dcf1390e1a051
https://hal.archives-ouvertes.fr/hal-03491475

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Montmorillonite Estimation in Clay–Quartz–Calcite Samples from Laboratory SWIR Imaging Spectroscopy: A Comparative Study of Spectral Preprocessings and Unmixing Methods

Autor: Grandjean, Etienne Ducasse, Karine Adeline, Xavier Briottet, Audrey Hohmann, Anne Bourguignon, Gilles

Publikováno v: Remote Sensing; Volume 12; Issue 11; Pages: 1723

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=multidiscipl::199fac5fb13f9eec7d64d219e5901f56

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Cartographie d'argile par imagerie hyperspectrale

Autor: Xavier Briottet, Karine Adeline, Gilles Grandjean, Anne Bourguignon, Audrey Hohmann

Publikováno v: Earth Observation and Geospatial Analyses
Earth Observation and Geospatial Analyses, pp.1-14, 2019, ⟨10.5772/intechopen.86149⟩

International audience; Mapping subsurface clay minerals is an important issue because they have particular behaviors in terms of mechanics and hydrology that directly affects assets laid at the surface such as buildings, houses, etc. They have a dir

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::326e3bd224615375a7a8c373642033f9
https://hal.archives-ouvertes.fr/hal-02172266/file/DOTA19098.1557736492.pdf

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ThinkHazard! — Delivering natural hazard information for decision making

Autor: Hessel Winsemius Deltares, Frederic Jacon, Ariel Nunez, Andreas Burzel, Pierre Giraud, Olivier Morel, Simone Balog, Nicolas Taillefer, Vivien Deparday, Marijn Kuijper, Nicolas Chauvin, Brenden Jongman, Alarma Simpson, Stuart T. Fraser, Richard J. Murnane, Audrey Hohmann, Sophie Vermooren

Publikováno v: The 3rd International Conference on Information and Communication Technologies for Disaster Management-ICT-DM'2016
The 3rd International Conference on Information and Communication Technologies for Disaster Management-ICT-DM'2016, Dec 2016, Vienne, France. pp.1-6
ICT-DM

Many countries are affected by multiple hazards to some extent. Development projects, from construction of schools, hospitals, bridges, or dams, to new agricultural programs are all at risk of being adversely affected by natural hazards in their desi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd8a86a411783a7eaede1d77cdcffcd5
https://hal.archives-ouvertes.fr/hal-02015380

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A GIS-based Vehicle Mobility Estimator for Operational Contexts

Autor: Gilles Schaefer, Nicolas Desramaut, Audrey Hohmann, Vincent Mardhel, Gilles Grandjean

Publikováno v: Transactions in GIS. 17:78-95

A vehicle mobility estimator has been developed to produce decision aid maps for projecting civil or military forces on operational theatres. Based on the exploitation of classical geographical sources (e.g. digital elevation models, optical images,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f01b7239583843feff0e29fc36d6184
https://doi.org/10.1111/j.1467-9671.2012.01351.x

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Discrimination d'argiles à partir de mesures hyperspectrales de laboratoire

Autor: Etienne Ducasse, Rosa Oltra-Carrio, Audrey Hohmann, Anne Bourguignon, Xavier Briottet, Gilles Grandjean

Publikováno v: 4ème colloque scientifique du groupe thématique hyperspectral de la SFPT (SFPT-GH)
4ème colloque scientifique du groupe thématique hyperspectral de la SFPT (SFPT-GH), Société françiase de photogrammetrie et de télédétection-Groupe hydrospectral, May 2016, Grenoble, France
HAL

National audience; Le retrait-gonflement des sols argileux engendre un tassement différentiel qui entraîne de nombreux sinistres sur le bâti. Tous les phyllosilicates ne participent pas de la même façon au retrait-gonflement des sols. La smectit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a7f510bf4ff6347884337ed10eb26e59
https://hal-brgm.archives-ouvertes.fr/hal-01300634

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Targeting and mapping expansive soils (Loiret, France): geometrical analysis of laboratory soil spectra in the short-wave infrared domain (1100–2500 nm)

Autor: Gilles Grandjean, Audrey Hohmann, Grégory Dufréchou, Anne Bourguignon

Publikováno v: Bulletin de la Société Géologique de France
Bulletin de la Société Géologique de France, Société géologique de France, 2016, 187 (3), ⟨10.2113/gssgfbull.187.3.169⟩
BSGF-Earth Sciences Bulletin, Vol 187, Iss 3, Pp 169-181 (2016)

Short-wave infrared (SWIR: 1100–2500 nm) reflectance spectra of soil samples, acquired under laboratory-controlled conditions, were used to estimate the swelling potentials of the soils and to use SWIR spectroscopy to improve a part of the swelling

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ec6a56e744d11046121331b42596580
https://hal-brgm.archives-ouvertes.fr/hal-01318471

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Cartographie des argiles gonflantes en milieux tempérés à partir de données hyperspectrales aéroportées couplées à des données in situ et laboratoire

Autor: Audrey Hohmann, Anne Bourguignon, Gilles Grandjean

Publikováno v: 3ème colloque scientifique du groupe hyperspectral de la SFPT
3ème colloque scientifique du groupe hyperspectral de la SFPT, May 2014, Porquerolles, France
HAL

L'objectif du projet AGEOTHYP (2013-2014) est d'étudier une méthodologie d'exploitation des images hyperspectrales couplées à des connaissances locales en vue d'affiner la cartographie de l'aléa retrait-gonflement des argiles. Pour cela, l'appro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9ac8ae0346f9725ba4b139be027bdec5
https://hal-brgm.archives-ouvertes.fr/hal-00963720

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