Zobrazeno 1 - 10
of 268
pro vyhledávání: '"Anders Vest Christiansen"'
Publikováno v:
Journal of Hydrology: Regional Studies, Vol 50, Iss , Pp 101599- (2023)
Study region: Fensholt, Denmark. Study focus: Tile drains are commonly used in agricultural fields with loamy soils in Denmark to improve crop yield by removing excessive water. Spatial patterns of drain flows are controlled by the climate, geology,
Externí odkaz:
https://doaj.org/article/0ec5437302ca4441927717f2abaea0d0
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-15 (2022)
Abstract In most urbanized and agricultural areas of central Europe, the shallow underground is constituted of Quaternary deposits which are often the most extensively used layers (water pumping, shallow geothermic, material excavation). All these de
Externí odkaz:
https://doaj.org/article/eab1aee1c401408985cc5c146c83ce58
Autor:
Hafsa Mahmood, Raphael Johannes Maria Schneider, Rasmus Rumph Frederiksen, Anders Vest Christiansen, Simon Stisen
Publikováno v:
Journal of Hydrology: Regional Studies, Vol 46, Iss , Pp 101353- (2023)
Study region: Denmark Study focus: Tile drainage, widespread across agricultural areas in Denmark, significantly impacts the hydrological cycle. Tile drain flow dynamics and their spatial patterns are crucial for water managers to address water quali
Externí odkaz:
https://doaj.org/article/e8ddf9dc2e354238ba7e8ad04b27ef6c
Autor:
Kenneth D. Mankoff, Dirk van As, Austin Lines, Thue Bording, Joshua Elliott, Rune Kraghede, Hubert Cantalloube, Hélène Oriot, Pascale Dubois-Fernandez, Olivier Ruault du Plessis, Anders Vest Christiansen, Esben Auken, Karina Hansen, William Colgan, Nanna B. Karlsson
Publikováno v:
Journal of Glaciology, Vol 66, Pp 496-508 (2020)
On 30 September 2017, an Air France Airbus A380-800 suffered a failure of its fourth engine while over Greenland. This failure resulted in the loss of the engine fan hub, fan blades and surrounding structure. An initial search recovered 30 pieces of
Externí odkaz:
https://doaj.org/article/b21f5ae484e24ff1b0503e3a7a36f723
Autor:
Troels Norvin Vilhelmsen, Esben Auken, Anders Vest Christiansen, Adrian Sanchez Barfod, Pernille Aabye Marker, Peter Bauer-Gottwein
Publikováno v:
Frontiers in Earth Science, Vol 7 (2019)
This study presents a novel expansion of the clay-fraction (CF)/resistivity clustering method aiming at developing realizations of subsurface structures based on multiple point statistics (MPS). The CF-resistivity clustering method is used to define
Externí odkaz:
https://doaj.org/article/5e2d658c78f444beb967e14fefe87968
Autor:
Anders Vest Christiansen, Jesper Bjergsted Pedersen, Esben Auken, Niels Emil Søe, Mads Kähler Holst, Søren Munch Kristiansen
Publikováno v:
Remote Sensing, Vol 8, Iss 12, p 1022 (2016)
Increasingly, electromagnetic induction methods (EMI) are being used within the area of archaeological prospecting for mapping soil structures or for studying paleo-landscapes. Recent hardware developments have made fast data acquisition, combined wi
Externí odkaz:
https://doaj.org/article/763731a575f541b6b3736e0ced0f6736
Publikováno v:
Xiao, L, Gianluca, F, Bo, Z, Auken, E & Christiansen, A V 2022, ' Fast 2.5D and 3D Inversion of transient electromagnetic surveys using the octree-based finite element method ', Geophysics, vol. 87, no. 4, pp. E267-E277 . https://doi.org/10.1190/geo2021-0402.1
Two efficient implementations of 3D and 2.5D modeling and inversion are presented to be applicable to large-scale transient electromagnetic (TEM) method explorations. The key novel features are (1) forward response and Jacobian calculations are imple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5a4903b7f6a04156f5a2e5296c5d1c0
https://doi.org/10.1190/geo2021-0402.1
https://doi.org/10.1190/geo2021-0402.1
Autor:
Pradip Kumar Maurya, Frederik Ersted Christensen, Masson Andy Kass, Jesper B. Pedersen, Rasmus R. Frederiksen, Nikolaj Foged, Anders Vest Christiansen, Esben Auken
Publikováno v:
Maurya, P K, Christensen, F E, Kass, M A, Pedersen, J B, Frederiksen, R R, Foged, N, Christiansen, A V & Auken, E 2022, ' Technical note : Efficient imaging of hydrological units below lakes and fjords with a floating, transient electromagnetic (FloaTEM) system ', Hydrology and Earth System Sciences, vol. 26, no. 11, pp. 2813-2827 . https://doi.org/10.5194/hess-26-2813-2022
Imaging geological layers beneath lakes, rivers, and shallow seawater provides detailed information critical for hydrological modeling, geologic studies, contaminant mapping, and more. However, significant engineering and interpretation challenges ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::033d5c054c911d05b16d4903ba84db90
https://doi.org/10.5194/hess-26-2813-2022
https://doi.org/10.5194/hess-26-2813-2022
Publikováno v:
Xiao, L, Fiandaca, G, Maurya, P K, Christiansen, A V & Lévy, L 2022, ' Three-dimensional time-lapse inversion of transient electromagnetic data, with application at an Icelandic geothermal site ', Geophysical Journal International, vol. 231, no. 1, pp. 584-596 . https://doi.org/10.1093/gji/ggac206
SUMMARY Transient electromagnetic (TEM) is an efficient non-invasive method to map electrical conductivity distribution in the subsurface. This paper presents an inversion scheme for 3-D TEM time-lapse (TL) data using a generalized minimum support (M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4c3dad5fe16a33021ae56a9a1ccfc3e
https://doi.org/10.1093/gji/ggac206
https://doi.org/10.1093/gji/ggac206
Autor:
Muhammad Rizwan Asif, Nikolaj Foged, Thue Bording, Jakob Juul Larsen, Anders Vest Christiansen
Deep learning (DL) algorithms have shown incredible potential in many applications. The success of these data-hungry methods is largely associated with the availability of large-scale datasets, as millions of observations are often required to achiev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5df0f5d0d9ef87eb97699b3b1eb1797
https://essd.copernicus.org/articles/15/1389/2023/
https://essd.copernicus.org/articles/15/1389/2023/
