δ18O values of cave drip water: a promising proxy for the reconstruction of the North Atlantic Oscillation?

Mischel, Simon A.; Spötl, Christoph

doi:10.1007/s00382-015-2521-5

Cited by 30 publications

(61 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This shows that stalagmite growth is ( Wackerbarth et al, 2010;Mischel et al, 2015). Furthermore, this proves that the upper limit 504 of the brownish, pigmented layers corresponds to the end of the year.…”

mentioning

confidence: 68%

See 2 more Smart Citations

Detection and origin of different types of annual laminae in recent stalagmites from Zoolithencave, southern Germany: Evaluation of the potential for quantitative reconstruction of past precipitation variability

Riechelmann

Fohlmeister

Tjallingii

et al. 2016

Preprint

Self Cite

View full text Add to dashboard Cite

Abstract. An arrangement of three stalagmites from Zoolithencave (southern Germany) was analysed for different types of annual laminae using both microscopic and geochemical methods. The speleothems show visible laminae (consisting of a clear and a brownish, pigmented layer pair) as well as fluorescent and elemental laminae. The age of the speleothems was constrained to 1800 to 1970 AD by 14C-dating of a charcoal piece below the speleothems, detection of the 14C bomb peak, as well as counting of annual laminae. Dating by the 230Th/U-method was impossible due to detrital contamination. On the annual time-scale, the variability of Mg, Ba, and Sr is controlled by Prior Calcite Precipitation (PCP) resulting in lower values during the wet season (autumn/winter) and vice versa. Yttrium and P are proxies for soil activity and are enriched in the brownish, pigmented layers. However, Y and P are also influenced by detrital content superimposing the soil activity signal. Aluminium and Mn are proxies for detrital content. Lamina thickness shows a significant correlation with the amount of precipitation of previous December and current January, February, March, April, May, and December (DJFMAMD) recorded at the nearby meteorological station Bamberg. Thus lamina thickness is a proxy for past precipitation, which is confirmed by the good agreement with a precipitation reconstruction based on tree-ring width from the Bavarian forest. This highlights the potential of these speleothems for climate reconstruction at annual resolution.

show abstract

mentioning

confidence: 68%

“…6). The Mg, Ba, and Sr content of Zoo-rez is higher in reduces the amount of infiltrating rain water (Wackerbarth et al, 2010;Mischel et al, 2015).…”

Section: Elemental Laminae 384mentioning

confidence: 99%

See 1 more Smart Citation

Detection and origin of different types of annual laminae in recent stalagmites from Zoolithencave, southern Germany: Evaluation of the potential for quantitative reconstruction of past precipitation variability

Riechelmann

Fohlmeister

Tjallingii

et al. 2016

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…It is also believed that atmospheric circulation plays a role in influencing the variability of precipitation isotopes by governing changes of moisture sources and by affecting temperatures, pressures, and humidity conditions experienced by advecting moisture masses (e.g., Aggarwal, Fröhlich, Kulkarni, & Gourcy, ; Cole, Rind, Webb, Jouzel, & Healy, ; Tan, ; Tian et al, ). Such large‐scale circulation effects may be El Niño–Southern Oscillation and summer monsoon activities (e.g., Ichiyanagi & Yamanaka, ; Tan, ; Vuille et al, ), westerly circulation (e.g., X. Liu, Rao et al, ), North Atlantic Oscillation (e.g., Baldini, McDermott, Foley, & Baldini, ; Mischel, Scholz, & Spötl, ) and Arctic Vortex (e.g., Puntsag et al, ). Although these analyses contribute significantly to our understanding of how isotopic signals are influenced by various factors, most analyses, however, tend to reveal a combined effect of moisture sources and meteorological parameters, as they are usually based on monthly samples with integrated precipitation from different moisture sources or even‐based data without considering the influence of various moisture sources.…”

Section: Introductionmentioning

confidence: 99%

“…Such large-scale circulation effects may be El Niño-Southern Oscillation and summer monsoon activities (e.g., Ichiyanagi & Yamanaka, 2015;Tan, 2014;Vuille et al, 2005), westerly circulation (e.g., X. Liu, Rao et al, 2015), North Atlantic Oscillation (e.g., Baldini, McDermott, Foley, & Baldini, 2008;Mischel, Scholz, & Spötl, 2015) and Arctic Vortex (e.g., Puntsag et al, 2016).…”

mentioning

confidence: 99%

Using stable isotopes to understand seasonal and interannual dynamics in moisture sources and atmospheric circulation in precipitation

Tang

Song

Zhang

et al. 2017

Hydrological Processes

View full text Add to dashboard Cite

Stable isotopes in precipitation are useful tracers to strengthen understanding of climate change and hydrological processes. In this study, the moisture sources of 190 precipitation events in Beijing were analysed using the Hybrid Single‐particle Lagrangian Integrated Trajectory model, based on which we studied the relation between variations in precipitation δ18O and dynamics in moisture sources and atmospheric circulation in seasonal and interannual timescales. Categorization of 7 groups of moisture sources was performed, among which oceanic moisture sources presented lower δ18O in precipitation than continental moisture sources. The results show that seasonal variations of precipitation δ18O were caused by changes of moisture sources. In summer, moisture from proximal oceans dominated vapour transport to Beijing due to increasing monsoon strength and resulted in a relatively small variation of precipitation δ18O. At the interannual timescale, the variations of δ18O in summer precipitation were related to dynamics in oceanic moistures, showing depleted values when the contribution of oceanic moistures, especially the proportion of long‐distance oceanic moisture, was high. Further analysis indicated that changes of oceanic moisture sources were controlled by the strength of summer monsoons. These findings address the complexity of moisture sources in midlatitude monsoon areas and suggest that isotopic signals in precipitation have the potential to deduce changes in moisture sources and atmospheric circulation and can therefore serve for palaeoclimate reconstruction.

show abstract

TERMITE: An R script for fast reduction of laser ablation inductively coupled plasma mass spectrometry data and its application to trace element measurements

Mischel

Mertz‐Kraus

Jochum

2017

Rapid Comm Mass Spectrometry

Self Cite

View full text Add to dashboard Cite

RATIONALE: High spatial resolution Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICPMS) determination of trace element concentrations is of great interest for geological and environmental studies. Data reduction is a very important aspect of LA-ICP-MS, and several commercial programs for handling LA-ICPMS trace element data are available. Each of these software packages has its specific advantages and disadvantages. METHODS: Here we present TERMITE, an R script for the reduction of LA-ICPMS data, which can reduce both spot and line scan measurements. Several parameters can be adjusted by the user, who does not necessarily need prior knowledge in R. Currently, ten reference materials with different matrices for calibration of LA-ICPMS data are implemented, and additional reference materials can be added by the user. TERMITE also provides an optional outlier test, and the results are provided graphically (as a pdf file) as well as numerically (as a csv file). RESULTS: As an example, we apply TERMITE to a speleothem sample and compare the results with those obtained using the commercial software GLITTER. The two programs give similar results. TERMITE is particularly useful for samples that are homogeneous with respect to their major element composition (in particular for the element used as an internal standard) and when many measurements are performed using the same analytical parameters. In this case, data evaluation using TERMITE is much faster than with all other available software, and the concentrations of more than 100 single spot measurements can be calculated in less than a minute. CONCLUSIONS: TERMITE is an open-source software for the reduction of LA-ICPMS data, which is particularly useful for the fast, reproducible evaluation of large datasets of samples that are homogeneous with respect to their major element composition.

show abstract

δ18O values of cave drip water: a promising proxy for the reconstruction of the North Atlantic Oscillation?

Cited by 30 publications

References 50 publications

Detection and origin of different types of annual laminae in recent stalagmites from Zoolithencave, southern Germany: Evaluation of the potential for quantitative reconstruction of past precipitation variability

Detection and origin of different types of annual laminae in recent stalagmites from Zoolithencave, southern Germany: Evaluation of the potential for quantitative reconstruction of past precipitation variability

Using stable isotopes to understand seasonal and interannual dynamics in moisture sources and atmospheric circulation in precipitation

TERMITE: An R script for fast reduction of laser ablation inductively coupled plasma mass spectrometry data and its application to trace element measurements

Contact Info

Product

Resources

About