Godon, Cécile; Guillon, Hervé; Buoncristiani, Jean-François; Mugnier, Jean-Louis (2013): Grain size distributions of Bossons stream saltation load (France) in 2009 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.835989, In supplement to: Godon, Cécile (2013): L'érosion dans les environnements glaciaires : exemple du Glacier des Bossons (Massif du Mont-Blanc, Haute-Savoie, France) = Erosion in glacial environments : example of the Glacier des Bossons (Massif du Mont-Blanc, Haute-Savoie, France). Université de Grenoble, v1, 212 pp, https://theses.hal.science/tel-00909603
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Coverage:
Latitude: 45.880000 * Longitude: 6.860000
Date/Time Start: 2009-07-02T00:00:00 * Date/Time End: 2009-09-12T00:00:00
Event(s):
Glacier_des_Bossons * Latitude: 45.880000 * Longitude: 6.860000 * Location: Bossons Glacier, Massif du Mont-Blanc, Haute-Savoie, France
Comment:
This dataset presents sediment load grain size distributions of Bossons stream, one of the subglacial stream draining Bossons glacier meltwater.
Bossons glacier is rapidly retreating and its proglacial area is deglaciated for ~30 years. Within this area, Bossons stream flows through an alluvial plain with day-to-day morphological changes. It is an intriguing location to study periglacial and proglacial erosion processes which requires to characterize transported sediments. Since coarse particles are difficult to monitor in such alpine stream environment, this dataset focuses on fine grained particles in suspension load, saltation load 5 cm from bed and bedload.
In 2009, a sediment trap constituted by a sole 1.5L-bottle was used to acquire 68 samples. The trap was pickep up every morning (9h00) and evening (20h00) between July 2nd and September 13th 2009.
After decantation, drying and weighting, Grain Size Distribution (GSD) of each samples has been determined by laser micro-granulometry. Some sample were analyzed twice to ensure data consistency. Only 12 bedload samples have been analyzed.
Saltating particles GSD is unimodal and dominant mode is always greater than 500 µm. Hence, on normal hydrological condition, suspended load, saltating load and bedload correspond respectively to silts, medium to coarse sands and medium to coarse sands together with granular gravels.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Geocode | |||
| 2 | Date/time end | Date/time end | Guillon, Hervé | |||
| 3 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.013-0.010 µm |
| 4 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.016-0.126 µm |
| 5 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.020-0.157 µm |
| 6 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.026-0.020 µm |
| 7 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.032-0.026 µm |
| 8 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.041-0.032 µm |
| 9 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.052-0.041 µm |
| 10 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.065-0.052 µm |
| 11 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.083-0.065 µm |
| 12 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.105-0.083 µm |
| 13 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.132-0.105 µm |
| 14 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.167-0.132 µm |
| 15 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.211-0.167 µm |
| 16 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.267-0.211 µm |
| 17 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.338-0.267 µm |
| 18 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.428-0.338 µm |
| 19 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.541-0.428 µm |
| 20 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.684-0.541 µm |
| 21 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 0.865-0.684 µm |
| 22 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 1.094-0.865 µm |
| 23 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 1.383-1.094 µm |
| 24 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 1.749-1.383 µm |
| 25 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 2.211-1.749 µm |
| 26 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 2.797-2.211 µm |
| 27 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 3.536-2.797 µm |
| 28 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 4.472-3.536 µm |
| 29 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 5.655-4.472 µm |
| 30 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 7.152-5.655 µm |
| 31 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 9.044-7.152 µm |
| 32 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 11.436-9.044 µm |
| 33 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 14.462-11.436 µm |
| 34 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 18.288-14.462 µm |
| 35 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 23.127-18.288 µm |
| 36 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 29.245-23.127 µm |
| 37 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 36.983-29.245 µm |
| 38 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 46.767-36.983 µm |
| 39 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 59.141-46.767 µm |
| 40 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 74.788-59.141 µm |
| 41 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 94.574-74.788 µm |
| 42 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 119.596-94.574 µm |
| 43 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 151.237-119.596 µm |
| 44 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 191.25-151.237 µm |
| 45 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 241.849-191.25 µm |
| 46 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 305.835-241.849 µm |
| 47 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 386.75-305.835 µm |
| 48 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 489.072-386.75 µm |
| 49 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 618.466-489.072 µm |
| 50 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 782.093-618.466 µm |
| 51 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 989.012-782.093 µm |
| 52 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 1250.674-989.012 µm |
| 53 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 1581.565-1250.674 µm |
| 54 | Size fraction | Size fraction | % | Guillon, Hervé | Laser micro-granulometry | 2000-1581.656 µm |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3604 data points
Download Data
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