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Allan, Estelle; de Vernal, Anne; Knudsen, Mads Faurschou; Hillaire-Marcel, Claude; Moros, Matthias; Ribeiro, Sofia; Ouellet‐Bernier, Marie‐Michèle; Seidenkrantz, Marit-Solveig (2019): Dinocyst assemblages in sediment core MSM05/3_343310 from Disko Bugt, West Greenland [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.898914, Supplement to: Allan, E et al. (2018): Late Holocene sea surface instabilities in the Disko Bugt Area, West Greenland, in phase with δ18O oscillations at Camp Century. Paleoceanography and Paleoclimatology, 33(2), 227-243, https://doi.org/10.1002/2017PA003289

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Abstract:
Palynological analyses of sediment core MSM343310 from Disko Bugt (68°38.861' N, 53°49.493' W) document decadal‐ to centennial‐scale variability of sea surface conditions during the last ~3,600 years. Dinocyst fluxes (>10⁴ cysts/cm² yr⁻¹) indicate a very high productivity. Dinocyst assemblages dominated by Islandinium minutum, Brigantedinium spp., Islandinium? cezare, and the cyst of Pentapharsodinium dalei suggest low surface salinity and marked shifts in summer sea surface temperature. The application of the modern analog technique to dinocyst assemblages, using an updated reference data set with new sites from the West Greenland margin, led to reconstruct decadal‐centennial‐scale variations in sea surface salinity and temperature, in phase with the δ18O variations in the Camp Century ice core. At ~1.5 ka BP, the seasonal sea ice cover records an important regime change, from winter‐only sea ice to more unstable conditions marked by successive cooling pulses with sea ice cover of up to 8 months/yr. The data suggest a close relationship between hydrographic conditions and regional climate over Greenland. Our record shows variations with a mean 200 years periodicity until ~2 ka BP, which supports the hypothesis of climate variations driven by solar variability. After 1.5 ka BP, our data show a variability characterized by a 60-70 year periodicity, which suggests linkages with the Atlantic Multidecadal Oscillation and southwestward migration of the atmospheric polar front. The most recent part of the record, from ~1900 CE to 2007 CE, is characterized by assemblages reflecting warmer surface conditions and reduced sea ice cover.
Keyword(s):
Arctic climate change; Arctic sea ice reconstructions; Dinocyst database; Late Holocene; West Greenland
Related to:
Allan, Estelle; de Vernal, Anne; Knudsen, Mads Faurschou; Hillaire-Marcel, Claude; Moros, Matthias; Ribeiro, Sofia; Ouellet‐Bernier, Marie‐Michèle; Seidenkrantz, Marit-Solveig (2019): Dinocyst percentages in sediment core MSM05/3_343310 from Disko Bugt, West Greenland. PANGAEA, https://doi.org/10.1594/PANGAEA.898915
Allan, Estelle; de Vernal, Anne; Knudsen, Mads Faurschou; Hillaire-Marcel, Claude; Moros, Matthias; Ribeiro, Sofia; Ouellet‐Bernier, Marie‐Michèle; Seidenkrantz, Marit-Solveig (2019): Reconstructions of sea-surface parameters from sediment core MSM05/3_343310 from Disko Bugt, West Greenland. PANGAEA, https://doi.org/10.1594/PANGAEA.898918
Coverage:
Median Latitude: 68.647750 * Median Longitude: -53.824825 * South-bound Latitude: 68.647680 * West-bound Longitude: -53.824880 * North-bound Latitude: 68.647820 * East-bound Longitude: -53.824770
Minimum Elevation: -856.0 m * Maximum Elevation: -852.0 m
Event(s):
MSM05/3_343310-2-2  * Latitude: 68.647820 * Longitude: -53.824770 * Elevation: -852.0 m * Location: Baffin Bay * Campaign: MSM05/3 * Basis: Maria S. Merian * Method/Device: MultiCorer (MUC)
MSM05/3_343310-5-1  * Latitude: 68.647680 * Longitude: -53.824880 * Elevation: -856.0 m * Location: Baffin Bay * Campaign: MSM05/3 * Basis: Maria S. Merian * Method/Device: Gravity corer (GC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventAllan, Estelle
AgeAgea AD/CEAllan, Estelle
AGEAgeka BPAllan, EstelleGeocode
Achomosphaera spp.Achomosphaera spp.#Allan, EstelleCounting, palynology
Bitectatodinium tepikienseB. tepikiense#Allan, EstelleCounting, palynology
Impagidinium aculeatumI. aculeatum#Allan, EstelleCounting, palynology
Impagidinium pallidumI. pallidum#Allan, EstelleCounting, palynology
Nematosphaeropsis labyrinthusN. labyrinthus#Allan, EstelleCounting, palynology
Operculodinium centrocarpumO. centrocarpum#Allan, EstelleCounting, palynology
10 Spiniferites elongatusS. elongatus#Allan, EstelleCounting, palynology
11 Spiniferites ramosusS. ramosus#Allan, EstelleCounting, palynology
12 Spiniferites beleriusS. belerius#Allan, EstelleCounting, palynology
13 Spiniferites bentoriS. bentori#Allan, EstelleCounting, palynology
14 Spiniferites spp.Spiniferites spp.#Allan, EstelleCounting, palynology
15 Pentapharsodinium dalei cystP. dalei cyst#Allan, EstelleCounting, palynology
16 Islandinium minutumI. minutum#Allan, EstelleCounting, palynology*
17 Islandinium? cezareI.? cezare#Allan, EstelleCounting, palynology*
18 Islandinium brevispinosumI. brevispinosum#Allan, EstelleCounting, palynology*
19 Brigantedinium spp.Brigantedinium spp.#Allan, EstelleCounting, palynology*
20 Dubridinium spp.Dubridinium spp.#Allan, EstelleCounting, palynology*
21 Lejeunecysta spp.Lejeunecysta spp.#Allan, EstelleCounting, palynology*
22 Selenopemphix quantaS. quanta#Allan, EstelleCounting, palynology*
23 Protoperidinium nudum cystP. nudum cyst#Allan, EstelleCounting, palynology*
24 Votadinium calvumV. calvum#Allan, EstelleCounting, palynology*
25 Protoperidinium americanumP. americanum#Allan, EstelleCounting, palynology*
26 Echinidinium spp.Echinidinium spp.#Allan, EstelleCounting, palynology*
Size:
5064 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Event

Age [a AD/CE]

Age [ka BP]

Achomosphaera spp. [#]

B. tepikiense [#]

I. aculeatum [#]

I. pallidum [#]

N. labyrinthus [#]

O. centrocarpum [#]
10 
S. elongatus [#]
11 
S. ramosus [#]
12 
S. belerius [#]
13 
S. bentori [#]
14 
Spiniferites spp. [#]
15 
P. dalei cyst [#]
16 
I. minutum [#]
17 
I.? cezare [#]
18 
I. brevispinosum [#]
19 
Brigantedinium spp. [#]
20 
Dubridinium spp. [#]
21 
Lejeunecysta spp. [#]
22 
S. quanta [#]
23 
P. nudum cyst [#]
24 
V. calvum [#]
25 
P. americanum [#]
26 
Echinidinium spp. [#]
MSM05/3_343310-2-2 2005.930-0.055930000036113000128132210260010000
MSM05/3_343310-2-22000.940-0.050940000072186005145105120250070000
MSM05/3_343310-2-21995.110-0.045110000011210200012370100200020000
MSM05/3_343310-2-21987.800-0.037800000061186000102132110530050000
MSM05/3_343310-2-21983.130-0.033130000045620001066880500040000
MSM05/3_343310-2-21976.950-0.02695000001091060011515750530030000
MSM05/3_343310-2-21970.600-0.02060000007461000163123170650040000
MSM05/3_343310-2-21964.620-0.014620000078840004889480620010002
MSM05/3_343310-2-21958.520-0.008520000032440001628780580030000
MSM05/3_343310-2-21951.940-0.001940000010693000189165120920050000
MSM05/3_343310-2-21945.5600.00444000001112115000196138150880060000
MSM05/3_343310-2-21939.2900.010710000015111020001489440790050000
MSM05/3_343310-2-21931.2300.018770000036500009512270670070000
MSM05/3_343310-2-21926.4200.0235800000711520001221701501040070001
MSM05/3_343310-2-21920.1300.02987000003164000103110140550080000
MSM05/3_343310-2-21913.9500.036050000081015500011781407500110000
MSM05/3_343310-2-21907.7900.04221000004819100008392207600110000
MSM05/3_343310-5-1 1815.0430.13495711004111740072693342108500110030
MSM05/3_343310-5-11811.8700.1381300000151140007911160780080000
MSM05/3_343310-5-11799.1700.1508300100038100274139350350020000
MSM05/3_343310-5-11786.4700.1635300002132000064177430320000000
MSM05/3_343310-5-11783.2910.1667090000136000245197170290051030
MSM05/3_343310-5-11773.7600.1762400000212000074167380240050000
MSM05/3_343310-5-11761.0600.1889400000018000074151380320030000
MSM05/3_343310-5-11751.5360.1984640000183600733233180340020010
MSM05/3_343310-5-11748.3600.2016400000138000062183450290020000
MSM05/3_343310-5-11735.6600.2143400000413700067235370360060000
MSM05/3_343310-5-11722.9500.2270500000553200079165160390060000
MSM05/3_343310-5-11719.7780.2302220000237200062181200400031000
MSM05/3_343310-5-11688.0230.2619770000069300429208140550090010
MSM05/3_343310-5-11684.8500.2651500000457200053193380330060000
MSM05/3_343310-5-11672.1500.2778500003547200056233380330060000
MSM05/3_343310-5-11659.4510.2905490000354500069146240380080000
MSM05/3_343310-5-11656.2770.2937230000247500249153330410123010
MSM05/3_343310-5-11646.7600.3032400000446000060180510170040000
MSM05/3_343310-5-11634.0600.3159400000051500055225430320010000
MSM05/3_343310-5-11627.7190.3222810000285300062195400370030000
MSM05/3_343310-5-11624.5470.3254530000074300229234180420060000
MSM05/3_343310-5-11615.0300.3349700000053500057195320370040000
MSM05/3_343310-5-11602.3500.347650000075137000761932106400100000
MSM05/3_343310-5-11592.8400.3571600000167200344190150400032000
MSM05/3_343310-5-11589.6700.3603300000155100049187320270070000
MSM05/3_343310-5-11577.0000.3730000001442400069150370650040000
MSM05/3_343310-5-11564.3300.3856700000123100089181360260010000
MSM05/3_343310-5-11561.1700.38883000000101500327218250430020000
MSM05/3_343310-5-11551.6700.3983300000373200072155260500040000
MSM05/3_343310-5-11539.0100.4109900000092400055192290530070000
MSM05/3_343310-5-11529.5270.4204730000262100042199210310001010
MSM05/3_343310-5-11526.3700.4236300000275500052170280270060000
MSM05/3_343310-5-11520.0400.42996000005450000116142350340070000
MSM05/3_343310-5-11507.4100.442590000015320009513690620040000
MSM05/3_343310-5-11497.9360.4520640000032201427193140510021000
MSM05/3_343310-5-11494.7800.4552200010315106000116144250470060000
MSM05/3_343310-5-11482.1600.46784000002653000112135330520020000
MSM05/3_343310-5-11475.8600.47414000004118500099150140670040000
MSM05/3_343310-5-11466.4090.4835910000281200049165180550010000
MSM05/3_343310-5-11463.2600.4867400000165600064157260590030000
MSM05/3_343310-5-11450.6800.4993200001165300073181200580010000
MSM05/3_343310-5-11438.1100.5118900002148200095154410370030000
MSM05/3_343310-5-11434.9670.5150330000185000353139270630030000
MSM05/3_343310-5-11425.5500.5244500000134000072156440270040000
MSM05/3_343310-5-11413.0200.53698001021109000062138150620080000
MSM05/3_343310-5-11403.6290.5463710000075400454157200500021020
MSM05/3_343310-5-11400.5000.54950001002590000106117300420020000
MSM05/3_343310-5-11394.2500.55575000004811300071166150570010000
MSM05/3_343310-5-11381.7700.56823000001510700064182190400030000
MSM05/3_343310-5-11372.4160.5775840000211450046414080630060010
MSM05/3_343310-5-11369.3000.5807000000681020006515680600010000
MSM05/3_343310-5-11356.8600.59314002001712200069133230590090000
MSM05/3_343310-5-11344.4500.60555000054816100062132260760040000
MSM05/3_343310-5-11341.3480.6086520000139100258168160440030000
MSM05/3_343310-5-11319.6900.63031000013311100082122280450030000
MSM05/3_343310-5-11310.4330.63956700002106110260147150640010000
MSM05/3_343310-5-11307.3500.64265000023613500083150200720030000
MSM05/3_343310-5-11295.0200.65498000003818200310496300520030000
MSM05/3_343310-5-11282.7200.66728001001650002103117300350040000
MSM05/3_343310-5-11279.6410.6703590000229100259161200450021000
MSM05/3_343310-5-11270.4200.67958001002417300182110340670010000
MSM05/3_343310-5-11258.1400.691860000009261003101102300660020000
MSM05/3_343310-5-11248.9340.7010660000354001371155180381020000
MSM05/3_343310-5-11245.8700.7041300100076000076153640220020000
MSM05/3_343310-5-11233.6000.7164000000047000089142420350020000
MSM05/3_343310-5-11221.3400.72866000000826100210980240510090000
MSM05/3_343310-5-11218.2700.7317300000263600387142160430023210
MSM05/3_343310-5-11209.0700.7409300000112271001101682206000100000
MSM05/3_343310-5-11196.8100.7531900000010100000121110190400050000
MSM05/3_343310-5-11187.6130.76238700001126110471162250251031000
MSM05/3_343310-5-11184.5500.76545000002617100215590281330040000
MSM05/3_343310-5-11172.2700.77773000002450000100129350320040000
MSM05/3_343310-5-11159.9900.79001000001090000113118290300030000
MSM05/3_343310-5-11156.9220.7930780000237300289126180490110100
MSM05/3_343310-5-11147.7000.8023000000215173001157125270320070000
MSM05/3_343310-5-11135.3900.8146100000010130001120102200390050000
MSM05/3_343310-5-11126.1520.82384800002513200486140190250051000
MSM05/3_343310-5-11123.0700.826930000026132003106120260340040000
MSM05/3_343310-5-11110.7200.839280000026121000118117180260000000
MSM05/3_343310-5-11098.3500.85165000002470000116156360290010000
MSM05/3_343310-5-11095.2530.85474700002410103689121120470051020
MSM05/3_343310-5-11085.9500.86405000002810000099137320250040000
MSM05/3_343310-5-11073.5200.87648000000417100214297260320050000
MSM05/3_343310-5-11064.1750.8858250000198410397125230280050000
MSM05/3_343310-5-11061.0600.88894000001717400183137370310050000
MSM05/3_343310-5-11048.5500.9014500000026000287141430190020000
MSM05/3_343310-5-11036.0100.913990000014123000103144230270040000
MSM05/3_343310-5-11032.8690.91713100005212300266175130300020000
MSM05/3_343310-5-11023.4200.92658001010311100194153240320070000
MSM05/3_343310-5-11010.7900.9392100000551420079896370370050000
MSM05/3_343310-5-11001.2840.948716000035460076418927050040000
MSM05/3_343310-5-1998.1100.95189001002615100085121190430080000
MSM05/3_343310-5-1985.3700.9646300100210121000107104160420050000
MSM05/3_343310-5-1972.5800.9774200002581640009112580480030000
MSM05/3_343310-5-1969.3700.9806300000483200451158370350000000
MSM05/3_343310-5-1959.7200.9902800000772150005518990410060000
MSM05/3_343310-5-1946.8101.0031900000452940005819590400000000
MSM05/3_343310-5-1937.0881.0129120000393610039187230270040000
MSM05/3_343310-5-1933.8401.01616000005511400039206280110050000
MSM05/3_343310-5-1920.8101.02919000001112381300050136405000100000
MSM05/3_343310-5-1907.7101.042290000013532170019711230290040000
MSM05/3_343310-5-1904.4321.045568000031112500260138230450021000
MSM05/3_343310-5-1894.5601.055440000011570001110149110240020000
MSM05/3_343310-5-1881.3501.06865000007420400070150330320040000
MSM05/3_343310-5-1871.4041.07859600001118200338192220190030000
MSM05/3_343310-5-1868.0801.08192000002118900079155310260050010
MSM05/3_343310-5-1841.3601.108640000061415700061208220270010000
MSM05/3_343310-5-1838.0051.1119950000055000464173350280000000
MSM05/3_343310-5-1814.4101.1355900000414321900010311690210040000
MSM05/3_343310-5-1804.2391.14576100003146300348173380170030000
MSM05/3_343310-5-1787.2201.162780000011712600119776602600140000
MSM05/3_343310-5-1770.1061.1798940000055000171135280490050000
MSM05/3_343310-5-1759.7901.190210000141214700084129230540040000
MSM05/3_343310-5-1735.6091.21439100006178530777141100330010000
MSM05/3_343310-5-1732.1401.2178600000121936290001102320580070000
MSM05/3_343310-5-1704.2501.245750000011612140004014400700060000
MSM05/3_343310-5-1700.7521.2492480000333001274142120560031000
MSM05/3_343310-5-1676.1501.27385000002914900043165230440030000
MSM05/3_343310-5-1665.5541.28444600001615800650156160380060000
MSM05/3_343310-5-1647.8301.302170000071616700074130130650090000
MSM05/3_343310-5-1630.0351.31996500003313504276139130410020000
MSM05/3_343310-5-1619.3201.330680000092923120006513570660080000
MSM05/3_343310-5-1594.2181.3557820000169300257159130490020000
MSM05/3_343310-5-1590.6201.35938000002614600040147290690000000
MSM05/3_343310-5-1561.7501.388250000041610400080128370550040000
MSM05/3_343310-5-1558.1251.3918750000377800162150200470020000
MSM05/3_343310-5-1532.7101.4172900000142500054173370490020000
MSM05/3_343310-5-1521.7771.42822300003911900551164120430040000
MSM05/3_343310-5-1503.5101.44649000006513200047191230350040000
MSM05/3_343310-5-1474.1611.4758390000101319300044123120900050000
MSM05/3_343310-5-1444.6301.505370000061519100001368150430050000
MSM05/3_343310-5-1414.9101.5350900000714164000109105170960040000
MSM05/3_343310-5-1384.9901.56501000002131270001105960910030000
MSM05/3_343310-5-1354.8301.595170000111014600062148110720040000
MSM05/3_343310-5-1324.4301.625570000015121000053140180900080000
MSM05/3_343310-5-1293.7701.65623000002172612000511051001170060000
MSM05/3_343310-5-1262.8401.6871600000151320001406330780090000
MSM05/3_343310-5-1231.6301.71837000001112050007580708200180000
MSM05/3_343310-5-1200.1301.7498700001415201000969810010600200000
MSM05/3_343310-5-1168.3201.7816800000382390007970801010090000
MSM05/3_343310-5-1136.2201.813780000041223700054108408000110000
MSM05/3_343310-5-1103.7901.846210000021024800081107100750050000
MSM05/3_343310-5-171.0401.87896000005532400053115140770050000
MSM05/3_343310-5-137.9601.912040000032137400086127501000070000
MSM05/3_343310-5-14.5601.94544000000135617000611186015200120000
MSM05/3_343310-5-1-29.1201.9791200000011196000771461301130090000
MSM05/3_343310-5-1-63.0502.0130500000114261000971122011700110010
MSM05/3_343310-5-1-97.2102.047210000071127120001021116012000180000
MSM05/3_343310-5-1-131.5602.08156000013112480001037840720060000
MSM05/3_343310-5-1-166.0802.1160800000110321500056108301320060000
MSM05/3_343310-5-1-200.7302.15073000003131740007286708400150000
MSM05/3_343310-5-1-235.4902.185490000001432700076142409300100000
MSM05/3_343310-5-1-270.3102.22031000003173114000771191107400130000
MSM05/3_343310-5-1-305.1802.255180000081529800099941006700120000
MSM05/3_343310-5-1-340.0802.290080000061834140007890100680060000
MSM05/3_343310-5-1-374.9702.324970000051631150008384707500100000
MSM05/3_343310-5-1-409.8602.359860000059391500081139909700100000
MSM05/3_343310-5-1-444.7202.39472000003732900069111706200100000
MSM05/3_343310-5-1-479.5402.429540000007277000831251803700160000
MSM05/3_343310-5-1-514.3302.46433000004919800088124504700100000
MSM05/3_343310-5-1-549.0802.499080000037291100096147100600060000
MSM05/3_343310-5-1-583.8002.5338000000610343000811191705000110000
MSM05/3_343310-5-1-618.4802.568480000131443100008112090620070010
MSM05/3_343310-5-1-653.1202.60312000001414394000143105509400190000
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