Rach, Oliver; Brauer, Achim; Wilkes, Heinz; Sachse, Dirk (2014): Moving average of stable isotope records from the Younger Dryas interval of sediment core MFM09A/D [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.826023, In supplement to: Rach, O et al. (2014): Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in Western Europe. Nature Geoscience, 7, 109-112, https://doi.org/10.1038/ngeo2053
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Coverage:
Latitude: 50.100800 * Longitude: 6.757500
Date/Time Start: 2009-05-16T00:00:00 * Date/Time End: 2009-05-16T00:00:00
Minimum Elevation: 336.0 m * Maximum Elevation: 336.0 m
Event(s):
MFM09A/D (Meerfelder Maar) * Latitude: 50.100800 * Longitude: 6.757500 * Date/Time Start: 2009-05-16T00:00:00 * Date/Time End: 2009-05-16T00:00:00 * Elevation: 336.0 m * Lake water depth: 17.6 m * Recovery: 12 m * Location: Meerfelder Maar, Germany * Method/Device: Piston corer, UWITEC (PCUWI) * Comment: Lake. Physiography: maar. Surrounding vegetation: mesophytic deciduous forest, Coniferae.
Comment:
To exhibit a representative trend in the data series of dD[aq] and dD[terr] with a comparable temporal resolution we calculated a moving average. We first eliminated effects of the different sedimentation rates within the studied time interval through determining an equidistant time series based on a 20-33 year window. For the interval between 13.10 - 12.88 ka BP we used a 20 year window and for the period between 12.88 - 12.68 ka BP a 33-year window. After that we used a 20-year window from 12.68 - 11.59 ka BP and a 33-year window in the following period (11.59 - 11.00 ka BP). For calculating the equidistant time series we were using method "interpl" with the specification “linear” in MATLAB (version R2010b). From the equidistant time series we calculated a moving average combining three samples. Therefore, during the YD (between 12.68 - 11.59) a moving average data point integrates over ca. 60 years and for the periods before and after between 60 to 99 years. For the calculation of the moving average of epsilon[terr-aq] we combined 5 samples, in order to account for the asynchronous noise of dD[aq] and dD[terr].
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | AGE | Age | ka BP | Geocode | ||
| 2 | n-Alkane C23, δD | C23 δD | ‰ SMOW | Sachse, Dirk | Calculated moving averages | |
| 3 | n-Alkane C29, δD | C29 δD | ‰ SMOW | Sachse, Dirk | Calculated moving averages | |
| 4 | ε [terrestrial-aquatic] | ε [terr-aq] | ‰ SMOW | Sachse, Dirk | Calculated moving averages |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
262 data points