Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Heleen A. de Wit"'
Autor:
Rolf D. Vogt, Øyvind A. Garmo, Kari Austnes, Øyvind Kaste, Ståle Haaland, James E. Sample, Jan-Erik Thrane, Liv Bente Skancke, Cathrine B. Gundersen, Heleen A. de Wit
Publikováno v:
Water, Vol 16, Iss 12, p 1716 (2024)
Rising organic charge in northern freshwaters is attributed to increasing levels of dissolved natural organic matter (DNOM) and changes in water chemistry. Organic charge concentration may be determined through charge balance calculations (Org.−) o
Externí odkaz:
https://doaj.org/article/8d90e27f6af24d8994e73387cb92c921
Autor:
Nicolas Valiente, Alexander Eiler, Lina Allesson, Tom Andersen, François Clayer, Camille Crapart, Peter Dörsch, Laurent Fontaine, Jan Heuschele, Rolf D. Vogt, Jing Wei, Heleen A. de Wit, Dag O. Hessen
Publikováno v:
Frontiers in Environmental Science, Vol 10 (2022)
Boreal lakes are the most abundant lakes on Earth. Changes in acid rain deposition, climate, and catchment land use have increased lateral fluxes of terrestrial dissolved organic matter (DOM), resulting in a widespread browning of boreal freshwaters.
Externí odkaz:
https://doaj.org/article/79d4a358c6034a7ead40215e4efb2fe8
Autor:
Heleen A. de Wit, Raoul‐Marie Couture, Leah Jackson‐Blake, Martyn N. Futter, Salar Valinia, Kari Austnes, Jose‐Luis Guerrero, Yan Lin
Publikováno v:
Limnology and Oceanography Letters, Vol 3, Iss 3, Pp 275-284 (2018)
Abstract Are small lakes passive pipes transporting terrigenous organic carbon (dissolved organic carbon [DOC]), or chimneys for CO2 release in the landscape? Using a unique combination of 30‐yr measurements, sediment dating and modeling of a small
Externí odkaz:
https://doaj.org/article/75b914fb15a545ddac939e7b90d56aa8
Autor:
Norbert Pirk, Kristoffer Aalstad, Erik Schytt Mannerfelt, François Clayer, Heleen Agnes de Wit, Casper Tai Christiansen, Inge Althuizen, Hanna Lee, Sebastian Westermann
Extensive regions in the permafrost zone are projected to become climatically unsuitable to sustain permafrost peatlands over the next century, suggesting transformations in these landscapes that can leave large amounts of permafrost carbon vulnerabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5da042158af18434bba474d2a2f273d0
https://doi.org/10.22541/essoar.168394762.23256034/v1
https://doi.org/10.22541/essoar.168394762.23256034/v1
Autor:
Donald T. Monteith, Peter A. Henrys, Jakub Hruška, Heleen A. de Wit, Pavel Krám, Filip Moldan, Maximilian Posch, Antti Räike, John L. Stoddard, Ewan M. Shilland, M. Gloria Pereira, Chris D. Evans
Publikováno v:
Science Advances. 9
The riverine dissolved organic carbon (DOC) flux is of similar magnitude to the terrestrial sink for atmospheric CO2, but the factors controlling it remain poorly determined and are largely absent from Earth system models (ESMs). Here, we show, for a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bab75ad82dcff8b22c03e366f9a9c37
https://doi.org/10.1126/sciadv.ade3491
https://doi.org/10.1126/sciadv.ade3491
Publikováno v:
Naturen. 145:236-240
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32774e0e88c2a913594548e460bf3e5d
https://doi.org/10.18261/issn.1504-3118-2021-05-05
https://doi.org/10.18261/issn.1504-3118-2021-05-05
Permafrost in northern Norway is characterized by peat plateaus and palsas and is among the fastest degrading permafrost areas in the world. Changes in these ecosystems with sporadic permafrost can be viewed as possible future states for currently st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba6f897ac2cfbc20030b49b1dc88d9b2
https://doi.org/10.5194/egusphere-egu22-9445
https://doi.org/10.5194/egusphere-egu22-9445
Autor:
Hans Fredrik Veiteberg Braaten, Martti Rask, Espen Lydersen, Tommi Malinen, Petr Terentyev, Kimmo K. Kahilainen, Tatiana Kashulina, Jussi Vuorenmaa, Amanda E. Poste, Staffan Åkerblom, Nicholas Kashulin, Jaakko Mannio, Heleen A. de Wit, Guttorm Christensen, Per-Arne Amundsen
Publikováno v:
Environmental Science and Technology
Accepted manuscript. Final version published in Environmental Science & Technology, 53(4), 1834-1843, is available at https://doi.org/10.1021/acs.est.8b06399. Temporally (1965–2015) and spatially (55°–70°N) extensive records of total mercury (H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38f2f345aafc674400a94eae22dcddb8
https://doi.org/10.1021/acs.est.8b06399
https://doi.org/10.1021/acs.est.8b06399
Autor:
Heleen A. de Wit, Hannu Marttila, Martyn N. Futter, Ahti Lepistö, Magnus Dahler Norling, Karin Eklöf, Francois Clayer, Jacqueline Knutson
Nordic surface waters are currently much browner than during the 1980s due to drivers related to decreased acid deposition, and increased precipitation. While upward trends in concentration of DOC have been well documented, positive trends in the ann
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe04f26fc62924a34f9073b410ec99b6
https://doi.org/10.5194/egusphere-egu21-15119
https://doi.org/10.5194/egusphere-egu21-15119
Autor:
Pavel Krám, Ulf Grandin, Burkhard Beudert, Witold Bochenek, Antti-Jussi Lindroos, Heleen A. de Wit, Hannele Hakola, Algirdas Augustaitis, Krzysztof Skotak, Salar Valinia, Johannes Kobler, Stefan Löfgren, Tomasz Pecka, Jussi Vuorenmaa, Józef Szpikowski, Maria Holmberg, Jane Frey, Nicholas Clarke, Milan Váňa, Martin Forsius, Pernilla Rönnback, Liisa Ukonmaanaho, Thomas Dirnböck, Sirpa Kleemola, Maximilian Posch
Publikováno v:
Science of the Total Environment
Science of The Total Environment
Science of The Total Environment
Highlights • Novel techniques for presenting exceedances of critical loads (CL) and their temporal development were developed. • Concentrations and fluxes of N and S compounds in deposition and runoff have decreased as a response to decreasing em
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4484242b7dbe6b630edc63e594072dea
https://hdl.handle.net/11250/2764565
https://hdl.handle.net/11250/2764565