Blanchet, Cécile L; Ramisch, Arne; Tjallingii, Rik; Ionita, Monica; Laruelle, Louison; Meike, Bagge; Klemann, Volker; Brauer, Achim (2024): Changepoints of annual flood-layer from sediment core POS362-2_33 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.967746
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Published: 2024-07-02 • DOI registered: 2024-07-03
Abstract:
The dataset provides information about changepoints identified in the sediment accumulation rate profile of marine core POS362_2_33. The study site is located on the Nile deep-sea fan and the core was collected in 2008. Using annual layer thickness determination (see doi:10.1594/PANGAEA.967743), sediment accumulation rates were calculated and eight changepoints were detected. We report here the depth and age of each changepoints and the number and average thickness of flood-layers between each changepoint. Further details can be found in the related
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 Elevation: -738.0 m * Maximum Elevation: -738.0 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Identification | ID | Blanchet, Cécile L | Numbering of changepoints | ||
| 2 | Depth, top/min | Depth top | m | Blanchet, Cécile L | Inferior depth boundary of changepoints | |
| 3 | Depth, bottom/max | Depth bot | m | Blanchet, Cécile L | Superior depth boundary of changepoints | |
| 4 | Calendar age, minimum/young | Cal age min | ka BP | Blanchet, Cécile L | Age model, Bayesian | Inferior age boundary of changepoints |
| 5 | Calendar age, maximum/old | Cal age max | ka BP | Blanchet, Cécile L | Age model, Bayesian | Superior age boundary of changepoints |
| 6 | Number | No | Blanchet, Cécile L | Calculated | Number of flood layer within two changepoints | |
| 7 | Flood layer thickness, standard deviation | Flood lay std dev | ± | Blanchet, Cécile L | Calculated | |
| 8 | Flood layer thickness | Flood lay thick | mm | Blanchet, Cécile L | Calculated | Median flood layer thickness of population n |
| 9 | Sedimentation rate per year | SR | cm/a | Blanchet, Cécile L | Calculated | Averaged accumulation rate between two changepoints |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
72 data points
Data
| 1 ID | 2 Depth top [m] | 3 Depth bot [m] | 4 Cal age min [ka BP] | 5 Cal age max [ka BP] | 6 No | 7 Flood lay std dev [±] | 8 Flood lay thick [mm] | 9 SR [cm/a] |
|---|---|---|---|---|---|---|---|---|
| 1 | 1.0167 | 1.5474 | 7.619 | 8.084 | 190 | 0.46 | 0.9 | 0.11 |
| 2 | 1.5474 | 2.0167 | 8.084 | 8.400 | 317 | 0.50 | 1.0 | 0.15 |
| 3 | 2.0167 | 2.5577 | 8.400 | 8.626 | 228 | 0.72 | 1.4 | 0.24 |
| 4 | 2.5577 | 3.1935 | 8.626 | 8.797 | 161 | 1.34 | 2.1 | 0.37 |
| 5 | 3.1935 | 3.5183 | 8.797 | 8.882 | 93 | 1.07 | 1.5 | 0.38 |
| 6 | 3.5183 | 4.7208 | 8.882 | 9.174 | 294 | 1.34 | 2.1 | 0.41 |
| 7 | 4.7208 | 5.1942 | 9.174 | 9.359 | 186 | 0.75 | 1.2 | 0.26 |
| 8 | 5.1942 | 5.5800 | 9.359 | 9.457 | 102 | 1.19 | 1.9 | 0.39 |