Aromatic acids as biomass-burning tracers in atmospheric aerosols and ice cores: A review.
Sign Up to like & getrecommendations! Published in 2019 at "Environmental pollution"
DOI: 10.1016/j.envpol.2019.01.028
Abstract: Biomass burning (BB) is one of the largest sources of carbonaceous aerosols with adverse impacts on air quality, visibility, health and climate. BB emits a few specific aromatic acids (p-hydroxybenzoic, vanillic, syringic and dehydroabietic acids)… read more here.
Keywords: biomass burning; aerosols ice; aromatic acids; biomass ... See more keywords
Precipitation regime influence on oxygen triple-isotope distributions in Antarctic precipitation and ice cores
Sign Up to like & getrecommendations! Published in 2018 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2017.10.035
Abstract: Abstract The relative abundance of 17O in meteoric precipitation is usually reported in terms of the 17O-excess parameter. Variations of 17O-excess in Antarctic precipitation and ice cores have hitherto been attributed to normalised relative humidity… read more here.
Keywords: precipitation ice; precipitation; ice cores; oxygen triple ... See more keywords
Excess methane in Greenland ice cores associated with high dust concentrations
Sign Up to like & getrecommendations! Published in 2020 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2019.11.020
Abstract: Abstract Ice core records of atmospheric methane ( CH 4 ) and its isotopic composition provide important information about biogeochemical cycles in the past. Interpreting these data requires that they faithfully record the composition of… read more here.
Keywords: dust concentrations; ice cores; methane; ice core ... See more keywords
Multiple sources for tephra from AD 1259 volcanic signal in Antarctic ice cores
Sign Up to like & getrecommendations! Published in 2019 at "Quaternary Science Reviews"
DOI: 10.1016/j.quascirev.2019.03.005
Abstract: Abstract Strong volcanic signals simultaneously recorded in polar ice sheets are commonly assigned to major low-latitude eruptions that dispersed large quantities of aerosols in the global atmosphere with the potential of inducing climate perturbations. Parent… read more here.
Keywords: antarctic ice; volcanic signal; eruption; tephra ... See more keywords
Fast Liquid Chromatography Coupled with Tandem Mass Spectrometry for the Analysis of Vanillic and Syringic Acids in Ice Cores
Sign Up to like & getrecommendations! Published in 2022 at "Analytical Chemistry"
DOI: 10.1021/acs.analchem.1c05412
Abstract: The development of new analytical systems and the improvement of the existing ones to obtain high-resolution measurements of chemical markers in samples from ice cores, is one of the main challenges the paleoclimatic scientific community… read more here.
Keywords: vanillic syringic; syringic acids; ice cores; fast liquid ... See more keywords
High-Precision Measurement of N2O Concentration in Ice Cores.
Sign Up to like & getrecommendations! Published in 2018 at "Environmental science & technology"
DOI: 10.1021/acs.est.7b05250
Abstract: Atmospheric nitrous oxide (N2O) is a greenhouse gas and ozone-depleting substance whose emissions are substantially perturbed by current human activities. Although air trapped in polar ice cores can provide direct information about N2O evolution, analytical… read more here.
Keywords: ice; high precision; ice cores; ice core ... See more keywords
Solar Activity of the Past 100 Years Inferred From 10Be in Ice Cores—Implications for Long‐Term Solar Activity Reconstructions
Sign Up to like & getrecommendations! Published in 2021 at "Geophysical Research Letters"
DOI: 10.1029/2020gl090896
Abstract: Differences between 10Be records from Greenland and Antarctica over the last 100 years have led to different conclusions about past changes in solar activity. The reasons for this disagreement remain unresolved. We analyze a seasonally… read more here.
Keywords: activity past; activity; solar activity; 100 years ... See more keywords
Microbial Characterization of Arctic Glacial Ice Cores with a Semiautomated Life Detection System.
Sign Up to like & getrecommendations! Published in 2023 at "Astrobiology"
DOI: 10.1089/ast.2022.0130
Abstract: The search for extant microbial life will be a major focus of future astrobiology missions; however, no direct extant life detection instrumentation is included in current missions to Mars. In this study, we developed the… read more here.
Keywords: ice cores; life detection; detection; astrobiology ... See more keywords
Smoking guns and volcanic ash: The importance of sparse tephras in Greenland ice cores
Sign Up to like & getrecommendations! Published in 2020 at "Polar Research"
DOI: 10.33265/polar.v39.3511
Abstract: Volcanic ash (fine-grained tephra) within Greenland ice cores can complement the understanding of past volcanism and its environmental and societal impacts. The presence of ash in sparse concentrations in the ice raises questions about whether… read more here.
Keywords: sparse; volcanic ash; ice cores; greenland ... See more keywords