New time series of long-term hydroclimate variability in the Arctic are urgently needed in order to better understand the response patterns to external forcing and changes in boundary conditions for global climate models. Here, we present a high-resolution record of mass-wasting events based on analyses of sediments deposited in Lake Svartvatnet. Based on novel methods such as x-ray computed tomography (CT), the volume of inorganic layers in Svartvatnet is calculated and allows us to investigate the frequency of mass-wasting events during the last 9000 years in Arctic Norway. The results show an increasing activity over the late Holocene with three main phases of an increased number of mass-wasting events at 6700–5200, 4500–2800 and 1700–500 cal. yr BP. We infer that the frequency of mass-wasting events is driven by wintertime precipitation with possible links to variations in North Atlantic Oscillation (NAO) index and changes in the zonal flow regime affecting the transport of moist air masses by the westerlies over Arctic Norway. Thus, we suggest that positive NAO conditions dominated in periods with high mass-wasting activity in the mid-Holocene and late Holocene and were separated by quiescent periods at 5200–4200 and 2700–1800 cal. yr BP that represent less dominant westerlies over Arctic Norway.
BakkeJDahlSOPaascheØ, et al. (2010) A complete record of Holocene glacier variability at Austre Okstindbreen, northern Norway: An integrated approach. Quaternary Science Reviews29: 1246–1262.
2.
BakkeJLieØDahlSO, et al. (2008) Strength and spatial patterns of the Holocene wintertime westerlies in the NE Atlantic region. Global and Planetary Change60: 28–41.
3.
BendleJMPalmerAPCarrSJ (2015) A comparison of micro-CT and thin section analysis of Lateglacial glaciolacustrine varves from Glen Roy, Scotland. Quaternary Science Reviews114: 61–77.
4.
BintanjaRAndryO (2017) Towards a rain-dominated Arctic. Nature Climate Change7: 263–267.
5.
BintanjaRSeltenF (2014) Future increases in Arctic precipitation linked to local evaporation and sea-ice retreat. Nature509: 479–482.
6.
BjerkgårdTLarsenRMarkerM (1995) Regional geology of the Okstindene area, the Rødingsfjäll Nappe Complex, Nordland, Norway. Norsk Geologisk Undersøkelse (NGU)87.
7.
BjuneAEBirksHJB (2008) Holocene vegetation dynamics and inferred climate changes at Svanåvatnet, Mo i Rana, northern Norway. Boreas37: 146–156.
8.
BlaauwMChristenJA (2011) Flexible paleoclimate age-depth models using an autoregressive gamma process. Bayesian Analysis6: 457–474.
9.
BlakeGRHartgeKH (1986) Bulk density. In: KlutA (ed.) Methods of Soil Analysis: Part 1 – Physical and Mineralogical Methods. Madison, WI: American Society of Agronomy-Soil Science Society of America, pp. 363–375.
10.
BlikraLHNemecW (1998) Postglacial colluvium in western Norway: Depositional processes, facies and palaeoclimatic record. Sedimentology45: 909–960.
11.
BlikraLHSelvikSF (1998) Climatic signals recorded in snow avalanche-dominated colluvium in western Norway: Depositional facies successions and pollen records. The Holocene8: 631–658.
12.
BøeA-GDahlSOLieØ, et al. (2006) Holocene river floods in the upper Glomma catchment, southern Norway: A high-resolution multiproxy record from lacustrine sediments. The Holocene16: 445–455.
13.
BoisvertLStroeveJ (2015) The Arctic is becoming warmer and wetter as revealed by the Atmospheric Infrared Sounder. Geophysical Research Letters42: 4439–4446.
14.
BondGKromerBBeerJ, et al. (2001) Persistent solar influence on North Atlantic climate during the Holocene. Science294: 2130–2136.
15.
BondGShowersWChesebyM, et al. (1997) A pervasive millennial-scale cycle in North Atlantic Holocene and glacial climates. Science278: 1257–1266.
16.
CroudaceIWRindbyARothwellRG (2006) ITRAX: Description and evaluation of a new multi-function X-ray core scanner. Geological Society of London267: 51–63.
17.
DeanWE (1974) Determination of carbonate and organic matter in calcareous sediments and sedimentary rocks by loss on ignition: Comparison with other methods. Journal of Sedimentary Petrology44: 242–258.
18.
DeeDPUppalaSMSimmonsA, et al. (2011) The ERA-Interim reanalysis: Configuration and performance of the data assimilation system. Quarterly Journal of the Royal Meteorological Society137: 553–597.
19.
FørlandEAlfnesEAmundsenH, et al. (2007) Climate Change and Natural Disasters in Norway: An Assessment of Possible Future Changes. Oslo: Norwegian Meteorological Institute.
20.
FørlandEJBenestadRHanssen-BauerI, et al. (2011) Temperature and precipitation development at Svalbard 1900–2100. Advances in Meteorology2011: 893790.
21.
GiraudeauJGrelaudMSolignacS, et al. (2010) Millennial-scale variability in Atlantic water advection to the Nordic Seas derived from Holocene coccolith concentration records. Quaternary Science Reviews29: 1276–1287.
22.
HammarlundDBarnekowLBirksHJB, et al. (2002) Holocene changes in atmospheric circulation recorded in the oxygen-isotope stratigraphy of lacustrine carbonates from northern Sweden. The Holocene12: 339–351.
23.
HandmerJHondaYKundzewiczZW, et al. (2012) Changes in impacts of climate extremes: Human systems and ecosystems. In: FieldCBBarrosVStockerTF (eds) Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation (Special Report of the Intergovernmental Panel on Climate Change). Cambridge: Cambridge University Press, pp. 231–290.
24.
HartmannDKlein TankARusicucciM, et al. (2013) Observations: Atmosphere and surface. In: StockerTFQinDPlattnerG-K, et al. (eds) Climate Change 2013: The Physical Science Basis (Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change). Cambridge; New York: Cambridge University Press, pp. 161–218.
25.
HestnesE (1985) A contribution to the prediction of slush avalanches. Annals of Glaciology6: 1–4.
26.
HestnesE (1998) Slushflow hazard – Where, why and when? 25 years of experience with slushflow consulting and research. Annals of Glaciology26: 370–376.
27.
HestnesEBakkehøiS (2004) Slushflow hazard prediction and warning. Annals of Glaciology38: 45–51.
28.
HestnesEKristensenK (2010) The diversities of large slushflows illustrated by selected cases. In: International snow science workshop. Available at: http://arc.lib.montana.edu/snow-science/item/397.
29.
KylanderMEAmpelLWohlfarthB, et al. (2011) High-resolution X-ray fluorescence core scanning analysis of Les Echets (France) sedimentary sequence: New insights from chemical proxies. Journal of Quaternary Science26: 109–117.
30.
LaskarJRobutelPJoutelF, et al. (2004) A long-term numerical solution for the insolation quantities of the Earth. Astronomy & Astrophysics428: 261–285.
31.
LingeHOlsenLBrookEJ, et al. (2007) Cosmogenic nuclide surface exposure ages from Nordland, northern Norway: Implications for deglaciation in a coast to inland transect. Norsk Geologisk Tidsskrift87: 269–280.
32.
Masson-DelmotteVSchulzMAbe-OuchiA, et al. (2013) Information from paleoclimate archives. In: StockerTQinDPlattnerG, et al (eds) Working Group I Contribution to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge; New York: Cambridge University Press, pp. 385–430.
33.
MatthewsJAWinklerSWilsonP, et al. (2018) Small rock-slope failures conditioned by Holocene permafrost degradation: A new approach and conceptual model based on Schmidt-hammer exposure-age dating, Jotunheimen, southern Norway. Boreas47: 1144–1169.
34.
MooreDMReynoldsRC (1989) X-ray Diffraction and the Identification and Analysis of Clay Minerals. Oxford: Oxford university press.
35.
MooreJREgloffJNagelisenJ, et al. (2013) Sediment transport and bedrock erosion by wet snow avalanches in the Guggigraben, Matter Valley, Switzerland. Arctic, Antarctic, and Alpine Research45: 350–362.
36.
MorleyARosenthalYdeMenocalP (2014) Ocean-atmosphere climate shift during the mid-to-late Holocene transition. Earth and Planetary Science Letters388: 18–26.
37.
MorosMAndrewsJTEberlDD, et al. (2006) Holocene history of drift ice in the northern North Atlantic: Evidence for different spatial and temporal modes. Paleoceanography21: PA2017.
38.
MulderTAlexanderJ (2001) The physical character of subaqueous sedimentary density flows and their deposits. Sedimentology48: 269–299.
39.
NealA (2004) Ground-penetrating radar and its use in sedimentology: Principles, problems and progress. Earth-Science Reviews66: 261–330.
40.
NesjeA (1992) A piston corer for lacustrine and marine sediments. Arctic and Alpine Research24: 257–259.
41.
NesjeABakkeJDahlSO, et al. (2007) A continuous, high-resolution 8500-yr snow-avalanche record from western Norway. The Holocene17: 269–277.
42.
NesjeADahlSMatthewsJ, et al. (2001) A ~4500 yr record of river floods obtained from a sediment core in Lake Atnsjøen, eastern Norway. Journal of Paleolimnology25: 329–342.
43.
NielsenPRDahlSOJansenHL, et al. (2016) Holocene aeolian sedimentation and episodic mass-wasting events recorded in lacustrine sediments on Langøya in Vesterålen, northern Norway. Quaternary Science Reviews148: 146–162.
44.
PfahlSO’GormanPAFischerEM (2017) Understanding the regional pattern of projected future changes in extreme precipitation. Nature Climate Change7: 423–427.
45.
PoppeLPaskevichVHathawayJ, et al. (2001) A laboratory manual for X-ray powder diffraction. US Geological Survey Open-File Report. Available at: https://pubs.er.usgs.gov/publication/ofr0141.
46.
RabenPTheakstoneWHTørsethK (2000) Relations between winter climate and ionic variations in a seven-meter-deep snowpack at Okstindan, Norway. Arctic, Antarctic, and Alpine Research32: 189–196.
47.
ReimerPJBardEBaylissA, et al. (2013) IntCal13 and Marine13 radiocarbon age calibration curves 0–50,000 years cal BP. Radiocarbon55: 1869–1887.
48.
RøtheTOBakkeJStørenEWN (2019) Glacier outburst floods reconstructed from lake sediments and their implications for Holocene variations of the plateau glacier Folgefonna in western Norway. Boreas. Epub ahead of print 2March. DOI: 10.1111/bor.12388.
49.
RubensdotterLRosqvistG (2009) Influence of geomorphological setting, fluvial-, glaciofluvial- and mass-movement processes on sedimentation in alpine lakes. The Holocene19: 665–678.
50.
SchweinsbergADBrinerJPMillerGH, et al. (2017) Local glaciation in West Greenland linked to North Atlantic Ocean circulation during the Holocene. Geology45: 195–198.
51.
SeppäHHammarlundDAntonssonK (2005) Low-frequency and high-frequency changes in temperature and effective humidity during the Holocene in south-central Sweden: Implications for atmospheric and oceanic forcings of climate. Climate Dynamics25: 285–297.
52.
SlettenKBlikraLHBallantyneCK, et al. (2003) Holocene debris flows recognized in a lacustrine sedimentary succession: Sedimentology, chronostratigraphy and cause of triggering. The Holocene13: 907–920.
53.
StørenEWNDahlSONesjeA, et al. (2010) Identifying the sedimentary imprint of high-frequency Holocene river floods in lake sediments: Development and application of a new method. Quaternary Science Reviews29: 3021–3033.
54.
StørenEWNPaascheØHirtAM, et al. (2016) Magnetic and geochemical signatures of flood layers in a lake system. Geochemistry, Geophysics, Geosystems17: 4236–4253.
55.
St. AmourNAHammarlundDANEdwardsTWD, et al. (2010) New insights into Holocene atmospheric circulation dynamics in central Scandinavia inferred from oxygen-isotope records of lake-sediment cellulose. Boreas39: 770–782.
56.
StrasserMMoneckeKSchnellmannM, et al. (2013) Lake sediments as natural seismographs: A compiled record of Late Quaternary earthquakes in Central Switzerland and its implication for Alpine deformation. Sedimentology60: 319–341.
57.
TheakstoneWH (2008) Dating stratigraphic variations of ions and oxygen isotopes in a high-altitude snowpack by comparison with daily variations of precipitation chemistry at a low-altitude site. Hydrology Research39: 101–112.
58.
TheakstoneWH (2011) A seven-year study of oxygen isotopes in daily precipitation at a site close to the Arctic Circle, Tustervatn, Norway: Trajectory analysis and links with the North Atlantic Oscillation. Atmospheric Environment45: 5101–5109.
59.
ThompsonDWJWallaceJM (1998) The Arctic Oscillation signature in the wintertime geopotential height and temperature fields. Geophysical Research Letters25: 1297–1300.
60.
VasskogKNesjeAStørenEWN, et al. (2011) A Holocene record of snow-avalanche and flood activity reconstructed from a lacustrine sedimentary sequence in Oldevatnet, western Norway. The Holocene21: 597–614.
61.
VölkerDJ (2010) A simple and efficient GIS tool for volume calculations of submarine landslides. Geo-marine Letters30: 541–547.
62.
WannerHBeerJBütikoferJ, et al. (2008) Mid- to late Holocene climate change: An overview. Quaternary Science Reviews27: 1791–1828.
63.
WilhelmBBallesteros CanovasJACorella AznarJP, et al. (2018) Recent advances in paleoflood hydrology: From new archives to data compilation and analysis. Water Security3: 1–8.
64.
XuMBogenJWangZ, et al. (2015) Pro-glacial lake sedimentation from jökulhlaups (GLOF), Blåmannsisen, northern Norway. Earth Surface Processes and Landforms40: 654–665.
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