Lower Meuse paleoflood record reveals NAO-driven decadal to multi-centennial variability - XRF-core-scanning Data

These files contain raw X-ray fluorescence (XRF) core scanning data and line scan data of the Buggenum and Ravenstein cores used in Peng et al. (2025). The abstract of that publication: A central challenge in assessing climate-driven flood regimes is constructing long-term paleoflood records with sufficient temporal resolution to identify both short- and long-term variability. To address this, we performed grain-size and X-ray fluorescence scanning analyses on two cores from paleochannels in the Lower Meuse (the Netherlands). The downcore ln(Zr/Rb) ratio proves to be a reliable grain-size proxy, allowing reconstruction of flood-related sediment input variations. We find the flood intensity record displays a ~300-yr cycle, synchronous to that observed in the North Atlantic Oscillation record, and both records are synchronous at this band. Importantly, a persistent quasi-decadal (7-10 years) oscillation indicate a persistently active flooding regime and hydrological stationarity throughout the Late Holocene. This study advances paleoflood methodology by demonstrating that paleochannel infills provide valuable archives for reconstructing flood histories across multi-annual to millennial intervals, thus enhancing our ability to track hydrological responses to climate variability across multiple timescales.