Zobrazeno 1 - 10 of 55 pro vyhledávání: '"Paul A. Hamer"'
1
Akademický článek
Data fusion of sparse, heterogeneous, and mobile sensor devices using adaptive distance attention
Autor: Jean-Marie Lepioufle, Philipp Schneider, Paul David Hamer, Rune Åvar Ødegård, Islen Vallejo, Tuan Vu Cao, Amir Taherkordi, Marek Wojcikowski
Publikováno v: Environmental Data Science, Vol 3 (2024)
In environmental science, where information from sensor devices are sparse, data fusion for mapping purposes is often based on geostatistical approaches. We propose a methodology called adaptive distance attention that enables us to fuse sparse, hete
Externí odkaz: https://doaj.org/article/3fb67e4e3aa84f16b19f2d9e5e92caac
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2
Halogen chemistry in volcanic plumes: a 1D framework based on MOCAGE 1D (version R1.18.1) preparing 3D global chemistry modelling
Autor: Virginie Marécal, Ronan Voisin-Plessis, Tjarda Jane Roberts, Alessandro Aiuppa, Herizo Narivelo, Paul David Hamer, Béatrice Josse, Jonathan Guth, Luke Surl, Lisa Grellier
Publikováno v: Geoscientific Model Development Discussions
Geoscientific Model Development Discussions, In press, pp.(Discussions). ⟨10.5194/gmd-2022-180⟩
Geoscientific Model Development
Geoscientific Model Development, 2023, 16 (10), pp.2873-2898. ⟨10.5194/gmd-16-2873-2023⟩
HBr emissions from volcanoes lead rapidly to the formation of BrO within volcanic plumes and have an impact on tropospheric chemistry, at least at the local and regional scales. The motivation of this paper is to prepare a framework for further 3D mo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66038e1753a75e879ceb1eaa9611a2f1
https://doi.org/10.5194/gmd-16-2873-2023
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3
Akademický článek
Spatiotemporal Patterns in Data Availability of the Sentinel-5P NO2 Product over Urban Areas in Norway
Autor: Philipp Schneider, Paul D. Hamer, Arve Kylling, Shobitha Shetty, Kerstin Stebel
Publikováno v: Remote Sensing, Vol 13, Iss 11, p 2095 (2021)
Due to its comparatively high spatial resolution and its daily repeat frequency, the tropospheric nitrogen dioxide product provided by the TROPOspheric Monitoring Instrument (TROPOMI) onboard the Sentinel-5 Precursor platform has attracted significan
Externí odkaz: https://doaj.org/article/d2895f209f314c48bad1ac1ec966961f
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4
Spawning sources of a coastal fishery species inferred from otolith chemistry and microstructure: implications for management
Autor: Cdh Sherman, JA Kent, Paul A. Hamer, Anthony J. Fowler, Gregory P. Jenkins, J Kemp
Publikováno v: Marine Ecology Progress Series. 684:103-116
Spawning sources of King George whiting Sillaginodes punctatus populations in the states of South Australia and Victoria (south-eastern Australia) were analysed using otolith chemistry and microstructure from post-larvae sampled from 3 nursery areas
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3341e1c4db74fe8f4b55767a9b9baafc
https://doi.org/10.3354/meps13952
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6
A regional modelling study of halogen chemistry within a volcanic plume of Mt Etna’s Christmas 2018 eruption
Autor: Herizo Narivelo, Paul David Hamer, Virginie Marécal, Luke Surl, Tjarda Roberts, Sophie Pelletier, Béatrice Josse, Jonathan Guth, Mickaël Bacles, Simon Warnach, Thomas Wagner, Stefano Corradini, Giuseppe Salerno, Lorenzo Guerrieri
Publikováno v: Atmospheric Chemistry and Physics Discussions
Atmospheric Chemistry and Physics Discussions, In press, ⟨10.5194/egusphere-2023-184⟩
eISSN
Volcanoes are known to be important emitters of atmospheric gases and aerosols, which for certain volcanoes can include halogen gases and in particular HBr. HBr emitted in this way can undergo rapid atmospheric oxidation chemistry (known as the bromi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f7ec52864ce1108e59b2a9cf1681d7e
https://hal-insu.archives-ouvertes.fr/insu-04004824/document
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8
Modeling study of the impact of SO2 volcanic passive emissions on the tropospheric sulfur budget
Autor: Virginie Marécal, Nicolas Theys, Philipp Schneider, Claire Lamotte, Martin Cussac, Paul David Hamer, Jonathan Guth
Publikováno v: Atmospheric Chemistry and Physics. 21:11379-11404
Well constrained volcanic emissions inventories in chemistry transport models are necessary to study the impacts induced by these sources on the tropospheric sulfur composition and on sulfur species concentrations and depositions at the surface. In t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ea2331ae5f6b8e6cf08b5f5c84271ff
https://doi.org/10.5194/acp-21-11379-2021
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9
Akademický článek
Monitoring Soil Moisture Drought over Northern High Latitudes from Space
Autor: Jostein Blyverket, Paul D. Hamer, Philipp Schneider, Clément Albergel, William A. Lahoz
Publikováno v: Remote Sensing, Vol 11, Iss 10, p 1200 (2019)
Mapping drought from space using, e.g., surface soil moisture (SSM), has become viable in the last decade. However, state of the art SSM retrieval products suffer from very poor coverage over northern latitudes. In this study, we propose an innovativ
Externí odkaz: https://doaj.org/article/f5b00119f3dc458e82554a6770b718c7
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10
Akademický článek
An Evaluation of the EnKF vs. EnOI and the Assimilation of SMAP, SMOS and ESA CCI Soil Moisture Data over the Contiguous US
Autor: Jostein Blyverket, Paul D. Hamer, Laurent Bertino, Clément Albergel, David Fairbairn, William A. Lahoz
Publikováno v: Remote Sensing, Vol 11, Iss 5, p 478 (2019)
A number of studies have shown that assimilation of satellite derived soil moisture using the ensemble Kalman Filter (EnKF) can improve soil moisture estimates, particularly for the surface zone. However, the EnKF is computationally expensive since a
Externí odkaz: https://doaj.org/article/329e16bacf474c798edbccae66527a9d
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