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Blanchet, Cécile L; Ramisch, Arne; Tjallingii, Rik; Ionita, Monica; Laruelle, Louison; Meike, Bagge; Klemann, Volker; Brauer, Achim (2024): Annual flood-layer thickness of sediment core POS362-2_33 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.967743

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Published: 2024-07-02 • DOI registered: 2024-07-03

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Abstract:
The dataset provides a continuous record of layer thickness for sediments deposited during annual floods of the Nile River during the North African Humid Period (ca. 9.5-7.5 ka BP). The study site is located on the Nile deep-sea fan, where marine sediment core POS362_2_33 was collected in 2008. After subsampling the core, sediment blocks were embedded in resin and thin sections were cut. Layer identification, counting and thickness measurement were realised under the microscope. We provide here the raw flood-layer thickness as well as normalised (log-scale), detrended (differentiated) and filtered data on the depth and age scales. Further details can be found in the related manuscripts.
Keyword(s):
flood frequency; Green Sahara; Nile River; Varve
Supplement to:
Blanchet, Cécile L; Ramisch, Arne; Tjallingii, Rik; Ionita, Monica; Laruelle, Louison; Meike, Bagge; Klemann, Volker; Brauer, Achim (2024): Climatic pacing of extreme Nile floods during the North African Humid Period. Nature Geoscience, https://doi.org/10.1038/s41561-024-01471-9
Related to:
Blanchet, Cécile L; Ramisch, Arne; Tjallingii, Rik; Ionita, Monica; Laruelle, Louison; Meike, Bagge; Klemann, Volker; Brauer, Achim (2024): Pacemakers of extreme floods during warmer and wetter climates of the "Wild Nile" stage. PREPRINT (Version 1), https://www.researchsquare.com/article/rs-3051876/v1
Blanchet, Cécile L; Tjallingii, Rik; Schleicher, Anja Maria; Schouten, Stefan; Frank, Martin; Brauer, Achim (2021): Deoxygenation dynamics on the western Nile deep-sea fan during sapropel S1 from seasonal to millennial timescales. Climate of the Past, 17(3), 1025–1050, https://cp.copernicus.org/articles/17/1025/2021/
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 01LP1923A: PalMod II - WP3.2 - Synthese von Proxydaten und Umweltrekonstruktionen aus terrestrischen Klimaarchiven und Eisschilden - TP1 Synchronisierung von Klimaproxi-Daten für prozessbasierte Multiproxy-Interpretationen
Coverage:
Latitude: 31.693170 * Longitude: 29.750830
Date/Time Start: 2008-02-16T00:00:00 * Date/Time End: 2008-02-16T00:00:00
Minimum DEPTH, sediment/rock: 1.0170 m * Maximum DEPTH, sediment/rock: 5.5800 m
Event(s):
POS362-2_33 * Latitude: 31.693170 * Longitude: 29.750830 * Date/Time: 2008-02-16T00:00:00 * Elevation: -738.0 m * Location: Mediterranean Sea * Campaign: POS362/2 * Basis: Poseidon * Method/Device: Gravity corer (GC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmBlanchet, Cécile LGeocode
2Calendar age, medianCal age medianka BPBlanchet, Cécile LAge model, Bayesian
3Calendar age, minimum/youngCal age minka BPBlanchet, Cécile LAge model, Bayesian
4Calendar age, maximum/oldCal age maxka BPBlanchet, Cécile LAge model, Bayesian
5Flood layer thicknessFlood lay thickmmBlanchet, Cécile LMeasuredThickness of individual flood layer
6Flood layer thickness, logarithmFlood lay log10Blanchet, Cécile LCalculated
7Flood layer thickness, differentiatedFlood lay diffd/dBlanchet, Cécile LCalculated
8Flood layer thickness, differentiated, logarithmFlood lay diff log10Blanchet, Cécile LCalculated
9Flood highpass filtered, 9 years, logarithmFlood highpass filtered log10Blanchet, Cécile LCalculated
10Flood frequency per 30 years, extreme strong floodFlood freq 30 strong#Blanchet, Cécile LCounted
11Flood frequency per 30 years, extreme weak floodFlood freq 30 weak#Blanchet, Cécile LCounted
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
15650 data points

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