Results 41 to 50 of about 175,462 (300)

Light-absorbing snow impurities: nine years (2016–2024) of snowpack sampling close to Sonnblick Observatory, Austrian Alps [PDF]

The Cryosphere
We present chemical analysis data of the seasonal snow cover focusing on the light-absorbing snow impurities elemental carbon and mineral dust collected at a high-alpine glacier field close to Sonnblick Observatory.
D. Kau, M. Greilinger, M. Greilinger, A. Vukićević, J. Bielecki, L. Kronlachner, A. Kasper-Giebl   +6 more
doaj   +1 more source

On the spectral depolarisation and lidar ratio of mineral dust provided in the AERONET version 3 inversion product [PDF]

, 2018
Knowledge of the particle lidar ratio (Sγ) and the particle linear depolarisation ratio (δγ) for different aerosol types allows for aerosol typing and aerosol-Type separation in lidar measurements.
Kezoudi, Maria, Kim, Kwanchul, Mueller, Detlef, Noh, Youngmin, Shin, Sung-Kyun, Tatarov, Boyan, Tesche, Matthias   +6 more
core   +3 more sources

Effect of chemical mixing state on the hygroscopicity and cloud nucleation properties of calcium mineral dust particles [PDF]

Atmospheric Chemistry and Physics, 2009
Atmospheric mineral dust particles can alter cloud properties and thus climate by acting as cloud condensation nuclei (CCN) that form cloud droplets. The CCN activation properties of various calcium mineral dust particles were studied experimentally to ...
R. C. Sullivan, M. J. K. Moore, M. D. Petters, S. M. Kreidenweis, G. C. Roberts, K. A. Prather   +5 more
doaj  

Incorporated constraints on mineral abundances and complex refractive indices for mineral dust components simulation

GIScience & Remote Sensing
The sources, transport, and optical properties of various mineral dust components vary significantly. However, most simulations treat dust as a homogeneous mixture, failing to differentiate between individual components.
Liang Li, Keqin Duan, Ting Yang, Yuhan Qi, Junhua Yang, Rong Chen, Peihong Shi   +6 more
doaj   +1 more source

Characterization of Modern and Fossil Mineral Dust Transported to High Altitude in the Western Alps: Saharan Sources and Transport Patterns

Advances in Meteorology, 2012
Mineral dust aerosols recently collected at the high-altitude Jungfraujoch research station (N, E; 3580 m a.s.l.) were compared to mineral dust deposited at the Colle Gnifetti glacier (N, E; 4455 m a.s.l.) over the last millennium.
Florian Thevenon, Massimo Chiaradia, Thierry Adatte, Christoph Hueglin, John Poté   +4 more
doaj   +1 more source

Studies on mineral dust using airborne lidar, ground-based remote sensing, and in situ instrumentation [PDF]

, 2018
© 2018 The Author(s). Published by EDP Sciences. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...
Amiridis, Vassilis, Brooke, Jennifer, Buxmann, Joelle, Estelles, Victor, Marenco, Franco, Marinou, Eleni, O'Sullivan, Debbie, Pradhan, Yaswant, Proestakis, Emmanouil, Ryder, Claire, Segura, Sara, Smith, Helen R., Tsekeri, Alexandra, Ulanowski, Zbigniew   +13 more
core   +3 more sources

Mechanisms of Mineral Dust-Induced Emphysema

Environmental Health Perspectives, 1997
Mineral dust exposure can result in emphysema and chronic airflow obstruction. We postulated that dust-induced emphysema has a pathogenesis similar to that in cigarette smoke-induced emphysema, namely, excess release of proteolytic enzymes from dust-evoked inflammatory cells, and inactivation of alpha-1-antitrypsin (A1AT) by dust-catalyzed formation of
A, Churg, K, Zay, K, Li
openaire   +2 more sources

TEM analysis of the internal structures and mineralogy of Asian dust particles and the implications for optical modeling [PDF]

Atmospheric Chemistry and Physics, 2014
Mineral dust interacts with incoming/outgoing electromagnetic radiation in the atmosphere. This interaction depends on the microphysical properties of the dust particles, including size, mineral composition, external morphology, and internal structure ...
G. Y. Jeong, T. Nousiainen
doaj   +1 more source

Carbon sequestration in the deep Atlantic enhanced by Saharan dust [PDF]

, 2017
Enhanced atmospheric input of dust-borne nutrients and minerals to the remote surface ocean can potentially increase carbon uptake and sequestration at depth.
A Baker, A Baker, A Bory, A Fernández, A Rees, A Weigand, AJ Poulton, AN Knapp, AN Knapp, AN Knapp, Andrew P. Rees, AR Baker, AR Baker, AR Gobel, AW Thompson, C Guieu, C Harris, C Harris, C Klaas, C Lee, C Luo, C Mahaffey, C Schlosser, C Widdicombe, C. Mark Moore, Christian Crowe, CM Moore, Corinne Pebody, D Antoine, D Marconi, DM Gaiero, DM Karl, E Marañón, E. Malcolm S. Woodward, EJ Carpenter, F Lipschultz, FA Le Moigne, FA Le Moigne, Frédéric A. C. Le Moigne, Gavin H. Tilstone, GH Tilstone, H Planquette, I Salter, JE Dore, Jeff Benson, JI Hedges, JJ Polovina, JM Prospero, JP Montoya, JT Snow, K Casciotti, K Casciotti, K Schepanski, Katsiaryna Pabortsava, LM Zamora, M Mulholland, M Rubin, M Torres-Padrón, MA Altabet, MC Honda, MG Hastings, MH Conte, MH Iversen, MJ Behrenfeld, MM Mills, MR Lewis, MV Zubkov, N Gruber, N Mahowald, NAD Waser, P Mara, Paul Provost, RA Glaccum, RA Mortlock, Richard S. Lampitt, RL Mather, Robert McLachlan, S Emerson, S Hosoda, SC Painter, SE Reynolds, SJ Ussher, T Jickells, T Jickells, T Villareal, TM Conway, TS Arnarson, U Passow, WG Sunda, Y-W Luo   +89 more
core   +3 more sources

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source