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Rachold, Volker (2000): Discription of coastal shape at Bykovsky Peninsula. doi:10.1594/PANGAEA.58197,
Supplement to: Rachold, Volker; Grigoriev, Mikhail N; Are, Felix; Solomon, Steven; Reimnitz, Erk; Kassens, Heidemarie; Antonow, A (2000): Coastal erosion vs. riverine sediment discharge in the Arctic Shelf Seas. International Journal of Earth Sciences, 89(3), 450-460, doi:10.1007/s005310000113

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This article presents a comparison of sediment input by rivers and by coastal erosion into both the Laptev Sea and the Canadian Beaufort Sea (CBS). New data on coastal erosion in the Laptev Sea, which are based on field measurements and remote sensing information, and existing data on coastal erosion in the CBS as well as riverine sediment discharge into both the Laptev Sea and the CBS are included. Strong regional differences in the percentages of coastal erosion and riverine sediment supply are observed. The CBS is dominated by the riverine sediment discharge (64.45210**6 t/a) mainly of the Mackenzie River, which is the largest single source of sediments in the Arctic. Riverine sediment discharge into the Laptev Sea amounts to 24.10210**6 t/a, more than 70% of which are related to the Lena River. In comparison with the CBS, the Laptev Sea coast on average delivers approximately twice as much sediment mass per kilometer, a result of higher erosion rates due to higher cliffs and seasonal ice melting. In the Laptev Sea sediment input by coastal erosion (58.4210**6 t/a) is therefore more important than in the CBS and the ratio between riverine and coastal sediment input amounts to 0.4. Coastal erosion supplying 5.6210**6 t/a is less significant for the sediment budget of the CBS where riverine sediment discharge exceeds coastal sediment input by a factor of ca. 10.
Related to:
Rachold, Volker; Grigoriev, Mikhail N (2000): Russian-German Cooperation System Laptev Sea 2000: The Expedition LENA 1999. Berichte zur Polarforschung = Reports on Polar Research, 354, 1-269, doi:10.2312/BzP_0354_1_2000
Latitude: 71.786120 * Longitude: 129.416970
Date/Time Start: 1982-01-01T00:00:00 * Date/Time End: 2000-12-31T00:00:00
Minimum Elevation: 25.0 m * Maximum Elevation: 40.0 m
Bykovsky_Peninsula * Latitude: 71.786120 * Longitude: 129.416970 * Date/Time Start: 1982-01-01T00:00:00 * Date/Time End: 2000-12-31T00:00:00 * Elevation Start: 25.0 m * Elevation End: 40.0 m * Recovery: 0.03 m * Location: Laptev Sea Coast, Russia * Campaign: ACD_Key_sites * Basis: Sampling on land * Device: Coastal section (CSEC) * Comment: Silty sand - sandy silt with peat layers. Predominantly Late Pleistocene deposits/So-called Ice Complex, ice wedges and segregation ice, ice content 0.4-0.75, ground temperature -10 - -12 C/sedge, lichen, dwarf willow, moss, peat, arctic-tundra permafrost gley soils /Standard daily and monthly hydrometeorological data available since 1960 to 2000 (Tiksi Polar/Climate Station)/Tides 0.2 m, wind tides: up to 1 m, average wave height 0.4 m, sea water temperatures 0 - +5 C, currents: permanrnt along shore SE current/The key shore section of this site was investigated by quaternary geologists and geocryologists in detail. Average retreat rate of the coast is 2-2.5 m/year
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Date/Time of eventDate/Time
2Date/Time of event 2Date/Time 2
3Elevation of eventElevationm
4Elevation of event 2Elevation 2m
5Onshore FORM-codeOnshore cdRachold, VolkerVisual observation
6Distance to 10 m contourDist 10 mmRachold, VolkerVisual observation
7Distance to 100 m contourDist 100 mmRachold, VolkerVisual observation
8Distance to 500 m contourDist 500 mmRachold, VolkerVisual observation
9DescriptionDescriptionRachold, VolkerVisual observation
10Backshore FORM-codeBackshore cdRachold, VolkerVisual observation
11Shorezone complexityShorezone complexitymRachold, VolkerVisual observation
12Frontshore FORM-codeFrontshore cdRachold, VolkerVisual observation
13Offshore FORM-codeOffshore cdRachold, VolkerVisual observation
14Distance to 2 m isobathDist 2 m isobmRachold, VolkerVisual observation
15Distance to 10 m isobathDist 10 m isobmRachold, VolkerVisual observation
16Distance to 20 m isobathDist 20 m isobmRachold, VolkerVisual observation
17Distance to 100 m isobathDist 100 m isobmRachold, VolkerVisual observation
18Unlithified-codeUnlithified-cdRachold, VolkerVisual observation
19Ground-iceGround-iceRachold, VolkerVisual observation
20Lithified-codeLithified-cdRachold, VolkerVisual observation
21Ice-codeIce-cdRachold, VolkerVisual observation
22Man-made structuresMan-made strucRachold, VolkerVisual observation
18 data points

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