0000000000769908

AUTHOR

Matthias Gottschalk

0000-0001-9077-519x

showing 2 related works from this author

The Arctic Cloud Puzzle: Using ACLOUD/PASCAL Multiplatform Observations to Unravel the Role of Clouds and Aerosol Particles in Arctic Amplification

2019

A consortium of polar scientists combined observational forces in a field campaign of unprecedented complexity to uncover the secrets of clouds and their role in Arctic amplification. Two research aircraft, an icebreaker research vessel, an ice-floe camp including an instrumented tethered balloon, and a permanent ground-based measurement station were employed in this endeavour. Clouds play an important role in Arctic amplification. This term represents the recently observed enhanced warming of the Arctic relative to the global increase of near-surface air temperature. However, there are still important knowledge gaps regarding the interplay between Arctic clouds and aerosol particles, surfa…

Atmospheric Science010504 meteorology & atmospheric sciencesbusiness.industryCloud computingPascal (programming language)010502 geochemistry & geophysics01 natural sciencesAerosolThe arcticEarth sciencesClimatologyddc:550Polar amplificationEnvironmental sciencebusinesscomputer0105 earth and related environmental sciencescomputer.programming_languageBulletin of the American Meteorological Society
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An XRD, TEM and Raman study of experimentally annealed natural monazite

2002

The healing of radiation damage in natural monazite has been experimentally studied in annealing experiments using XRD, TEM, Raman microprobe and cathodoluminescence analysis. The starting material was a chemically homogeneous monazite from a Brazilian pegmatite with a concordant U–Pb age of 474 ± 1 Ma and a U–Th/He age of 479 Ma. The monazite shows nm-scale defects induced by radioactive decay. The Xray pattern of the unheated starting material revealed two distinct monazite ''phases'' A and B with slightly different lattice parameters. Monazite A shows sharp reflections of high amplitudes and slightly expanded lattice parameters (1% in volume) compared to a standard monazite. Phase B exhi…

DiffractionMicroprobe010504 meteorology & atmospheric sciencesXRDAnnealing (metallurgy)chemistry.chemical_elementCathodoluminescenceCrystal structure010502 geochemistry & geophysicsHelium01 natural sciencesIrradiation damagessymbols.namesakeGeochemistry and PetrologyGeneral Materials ScienceMonaziteAnnealing experimentsHelium0105 earth and related environmental sciencesChemistryCrystallographyMonaziteTEMsymbolsRaman spectroscopy[SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/MineralogyPhysics and Chemistry of Minerals
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