Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Joseph R, McConnell"'
Autor:
Giyoon Lee, Andrea Burke, William Hutchison, Patrick Sugden, Celeste Smith, Joseph R. McConnell, Michael Sigl, Clive Oppenheimer, Sune Olander Rasmussen, Jørgen Peder Steffensen, Seung Ryeol Lee, Jinho Ahn
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-8 (2024)
Abstract The Millennium Eruption of Mt. Baekdu, one of the largest volcanic eruptions in the Common Era, initiated in late 946. It remains uncertain whether its two main compositional phases, rhyolite and trachyte, were expelled in a single eruption
Externí odkaz:
https://doaj.org/article/d7eae122bb3d4e0b91d75e30e33f4633
Autor:
Bingqing Zhang, Nathan J. Chellman, Jed O. Kaplan, Loretta J. Mickley, Takamitsu Ito, Xuan Wang, Sophia M. Wensman, Drake McCrimmon, Jørgen Peder Steffensen, Joseph R. McConnell, Pengfei Liu
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Estimating fire emissions prior to the satellite era is challenging because observations are limited, leading to large uncertainties in the calculated aerosol climate forcing following the preindustrial era. This challenge further limits the
Externí odkaz:
https://doaj.org/article/ea76dd24fc8f4880a48088ef17af7c7c
Autor:
Imogen Gabriel, Gill Plunkett, Peter M. Abbott, Melanie Behrens, Andrea Burke, Nathan Chellman, Eliza Cook, Dominik Fleitmann, Maria Hörhold, William Hutchison, Joseph R. McConnell, Bergrún A. Óladóttir, Johannes Preiser-Kapeller, Jakub T. Sliwinski, Patrick Sugden, Birthe Twarloh, Michael Sigl
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-18 (2024)
Abstract Existing global volcanic radiative aerosol forcing estimates portray the period 700 to 1000 as volcanically quiescent, void of major volcanic eruptions. However, this disagrees with proximal Icelandic geological records and regional Greenlan
Externí odkaz:
https://doaj.org/article/750ed64a8ae84a3f976472539469f84c
Autor:
Kirstin Hoffmann-Abdi, Hanno Meyer, Francisco Fernandoy, Johannes Freitag, Fyntan M. Shaw, Martin Werner, Elizabeth R. Thomas, Joseph R. McConnell, Christoph Schneider
Publikováno v:
Journal of Glaciology, Vol 69, Pp 2027-2045 (2023)
Stable water isotope records of six firn cores retrieved from two adjacent plateaus on the northern Antarctic Peninsula between 2014 and 2016 are presented and investigated for their connections with firn-core glacio-chemical data, meteorological rec
Externí odkaz:
https://doaj.org/article/4f4b1be47ee143068033b31908832463
Autor:
Shuting Zhai, Joseph R. McConnell, Nathan Chellman, Michel Legrand, Thomas Opel, Hanno Meyer, Lyatt Jaeglé, Kaitlyn Confer, Koji Fujita, Xuan Wang, Becky Alexander
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 5, Pp n/a-n/a (2024)
Abstract Tropospheric reactive bromine (Bry) influences the oxidation capacity of the atmosphere by acting as a sink for ozone and nitrogen oxides. Aerosol acidity plays a crucial role in Bry abundances through acid‐catalyzed debromination from sea
Externí odkaz:
https://doaj.org/article/233ac61daa134fa0ba25a4100ccd26dd
Autor:
Sandra O. Brugger, Nathan J. Chellman, Andreas Plach, Paul D. Henne, Andreas Stohl, Joseph R. McConnell
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 2, Pp n/a-n/a (2024)
Abstract Rapid warming and human exploitation threaten boreal forests. Understanding links among vegetation, climate, and people in this vast biome requires highly resolved long‐term records that integrate regional inputs. We developed an 850‐yea
Externí odkaz:
https://doaj.org/article/72c796580b81464680d65a090882f3f9
Autor:
Michel Legrand, Joseph R. McConnell, Gilles Bergametti, Susanne Preunkert, Nathan Chellman, Karine Desboeufs, Laurence Lestel, Andreas Plach, Andreas Stohl
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Military conflicts result in local environmental damage, but documenting regional and larger scale impacts such as heavy metal pollution has proven elusive. Anthropogenic emissions of bismuth (Bi) include coal burning and various commodity p
Externí odkaz:
https://doaj.org/article/62952fb54b0f4d6a847a0e88f18409d3
Autor:
Sabine Eckhardt, Ignacio Pisso, Nikolaos Evangeliou, Christine Groot Zwaaftink, Andreas Plach, Joseph R. McConnell, Michael Sigl, Meri Ruppel, Christian Zdanowicz, Saehee Lim, Nathan Chellman, Thomas Opel, Hanno Meyer, Jørgen Peder Steffensen, Margit Schwikowski, Andreas Stohl
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Black Carbon is an important climate forcer with poorly constraint historic emission fluxes and therefore large emission uncertainty. Here, ice-core data are combined with modelling to reconstruct historical emissions of Black carbon and finding gaps
Externí odkaz:
https://doaj.org/article/54f3cc26c05e4e5f94cc6a824a5b862f
Autor:
Åsa K. Rennermalm, Regine Hock, Federico Covi, Jing Xiao, Giovanni Corti, Jonathan Kingslake, Sasha Z. Leidman, Clément Miège, Michael Macferrin, Horst Machguth, Erich Osterberg, Takao Kameda, Joseph R. McConnell
Publikováno v:
Journal of Glaciology, Vol 68, Pp 431-442 (2022)
Refreezing of meltwater in firn is a major component of Greenland ice-sheet's mass budget, but in situ observations are rare. Here, we compare the firn density and total ice layer thickness in the upper 15 m of 19 new and 27 previously published firn
Externí odkaz:
https://doaj.org/article/6e570afe061a432f9f059507fc118be8
Publikováno v:
Journal of Glaciology, Vol 67, Pp 1028-1042 (2021)
We present polar ice core organic matter (OM) fluorescence signatures to reconstruct ancient and modern atmospheric compositions and relate OM signals to past ecological changes. OM composition from three Arctic ice cores (Canada and Greenland) was c
Externí odkaz:
https://doaj.org/article/d8b1994e11b844a09b50c8bc6aa42b67