Bajard, Manon (2023): Erosion intensity recorded in Lake Gers (North-western Alps) over the last 4600 years [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.958980, In: Giguet-Covex, Charline; Chen, Wentao; Ficetola, Francesco Gentile; Gielly, Ludovic; Pansu, Johan (2023): Plant DNA analyses, nature and intensity of human activities, and erosion intensities in the North-western Alps over the last 4000-6000 years inferred from lake sediments [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.958732
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Related to:
Giguet-Covex, Charline; Bajard, Manon; Chen, Wentao; Walsh, Kevin; Rey, Pierre-Jérôme; Messager, Erwan; Etienne, David; Sabatier, Pierre; Ficetola, Francesco Gentile; Gielly, Ludovic; Blanchet, C; Guffond, Christophe; Chiquet, Patricia; Arnaud, Fabien; Poulenard, Jérôme (2023): Long-term trajectories of mountain agro-ecosystems in the North-Western Alps. Regional Environmental Change, 23(2), 58, https://doi.org/10.1007/s10113-023-02030-5
Further details:
Bajard, Manon; Poulenard, Jérôme; Sabatier, Pierre; Bertrand, Yann; Crouzet, Christian; Ficetola, Gentile Francesco; Blanchet, C; Messager, Erwan; Giguet-Covex, Charline; Gielly, Ludovic; Rioux, Delphine; Chen, Wentao; Malet, Emmanuel; Develle, Anne-Lise; Arnaud, Fabien (2020): Pastoralism increased vulnerability of a subalpine catchment to flood hazard through changing soil properties. Palaeogeography, Palaeoclimatology, Palaeoecology, 538, 109462, https://doi.org/10.1016/j.palaeo.2019.109462
Coverage:
Latitude: 46.027233 * Longitude: 6.729512
Date/Time Start: 2016-01-18T00:00:00 * Date/Time End: 2016-01-18T00:00:00
Minimum Elevation: 1532.0 m * Maximum Elevation: 1532.0 m
Event(s):
Comment:
Information on the production of the dataset: The sediment record of Lake Gers consists partly of flood deposits characterised by the succession of three facies: coarse-grained and well-sorted sediment facies, a less sorted sediment facies with finer particles and a clayey cap, from bottom to top. Based on the age-depth model constructed without considering these instantaneous events (see Bajard et al. 2020), a flood frequency with a window of 101 years was calculated. This record is used as a proxy for erosion intensity. Another proxy for erosion is the continuous sedimentation rate (i.e. sedimentation between flood deposits). The sum of this sedimentation rate with the thickness of the flood deposits provides a "total accumulation rate" which reflects the total erosion dynamics in this catchment. The signals have been standardized by calculating z-scores.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Lake | Lake | Giguet-Covex, Charline | |||
| 2 | AGE | Age | ka BP | Giguet-Covex, Charline | Age model, radiocarbon dates and short radionuclides | Geocode |
| 3 | Age | Age | a AD/CE | Giguet-Covex, Charline | Age model, radiocarbon dates and short radionuclides | |
| 4 | Period, cultural | Period cultural | Giguet-Covex, Charline | |||
| 5 | Flood frequency per 101 years | Flood freq 101 | # | Giguet-Covex, Charline | running window of 101 year | |
| 6 | Flood frequency, normalized, z-score | Flood freq norm z | Giguet-Covex, Charline | Normalized, z-score calculation | running window of 101 year | |
| 7 | Flood deposit thickness | Flood deposit thick | cm | Giguet-Covex, Charline | ||
| 8 | Sedimentation rate per year | SR | cm/a | Giguet-Covex, Charline | Continuous | |
| 9 | Sedimentation rate per year | SR | cm/a | Giguet-Covex, Charline | Calculated | Total sedimentary accumulation, sum of the continuous sedimentation rate and of the flood thickness |
| 10 | Sedimentation rate, normalized z-score | SR norm z | Giguet-Covex, Charline | Normalized, z-score calculation | Total accumulation rate |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
41894 data points
Download Data
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