the Expedition ARKTIS-XIX/4 of the research vessel POLARSTERN ...

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Temp. Sal. Tiefe max. Tiefe Trübe Plankton Benthos See Datum Pos. Lat Pos. Long [°C] %o [cm] [m] Bestand Exp. Bestand Exp. Melles Lake (Koldewey 1) 13.8.03 76°07.40'N 18°37.57'W 9 3 30 71 + + + + FLB+FLA Duck Lake (Koldewey 2) 22.8.03 76°25.15'N 18°45.00'W 10 0 20 6 - + + FLB Fox Lake (Koldewey 3) 6.9.03 76°15.06'N 18°31.32'W 3,2 0 20 55 - + + Potsdam Lake 26.8.03 75°03.48'N 18°45.86'W 7,4 3 40 1,5 + + + + FLB+Grazer Hochstätter See 6.9.03 75°37.31'N 19°44.12'W 5,7 4 20 1 + + + + Basalt Lake 8.9.03 72°43.48'N 22°27.60'W 8,8 5 20 70 + + + + FLB Noa Lake 11.9.03 73°19.48'N 25°08.24'W 6,6 5 30 120 +++ + + + FLB Lune Lake (Geogr. Soc. O) 11.9.03 72°15.06'N 22°08.22'W 11 + + + Hochstätter Fluss 6.9.03 75°42.23'N 19°36.13'W 2 0 10 0,5 +++ + + Ardencaple Fjord 6.9.03 75°15.66'N 20°54.28'W 5,4 5 10 0,5 + Store Koldewey 2 Strand 13.8.03 76°06.82'N 18°30.51'W 36 20 + FLB Shannon Island Strand 26.8.03 75°05.97'N 17°51.86'W 4,5 36 20 + Shelf Multicorer 22.8.03 76°28.49'N 11°24.86'W 1,8 36 324 m + FLB Scholle1 16.8.03 76°44.80'N 05°27.52'W -0,7 25 30 - + + Scholle 2A 20.8.03 77°09.01'N 01°10.30'W 0,8 8 40 ++ + + Scholle 2B 20.8.03 77°09.01'N 01°10.30'W 0,8 8 30 - + + + Scholle 3A 20.8.03 77°08.98'N 01°12.06'W 0,2 5 30 - + Scholle 3B 20.8.03 77°08.98'N 01°12.06'W -0,9 20 - - + Scholle 4 25.8.03 75°35.14'N 08°02.86'W 0,6 5 30 + + + FLB+FLA Scholle 5A 4.9.03 75°38.67'N 09°12.81'W 0,3 15 20 - + Scholle 5B 4.9.03 75°38.67'N 09°12.81'W -1,3 33 30 - + Scholle 5C 4.9.03 75°38.67'N 09°12.81'W 0,3 5 30 - + Scholle 7A 5.9.03 76°06.88'N 08°44.67'W 0,1 6 30 ++ + + Scholle 7B 5.9.03 76°06.88'N 08°44.67'W -1 25 20 + + + Scholle 8A 5.9.03 76°13.00'N 08°14.72'W 1,5 36 20 + + Scholle 8B 5.9.03 76°13.00'N 08°14.72'W 1,3 19 40 + + Tab 5-1: Liste der beprobten Standorte. FLA… Experimente mit fluoreszenzmarkierten Algen, FLB… Experimente mit fluoreszenzmarkierten Bakterien, Grazer… Experimente mit Zugabe von Makrograzern (Chironomidenlarven) 50
6 Quaternary geological and biological studies on Store Koldewey and on Geographical Society Ø Ole Bennike, Holger Cremer, Lena Håkansson, Nadja Hultzsch, Martin Klug, Svenja Kobabe, Bernd Wagner Only a few studies were carried out so far to reconstruct the Late Quaternary and Holocene environmental history of north eastern Greenland. Therefore, the extent and the thickness of the ice shield and the outlet glaciers during the Last Glacial Maximum (LGM) are still under discussion. According to the past investigations, the deglaciation from the shelves started in eastern and north eastern Greenland somewhen between 16 and 14 ka BP (Funder 1989, 1998). The ice retreat was interrupted by several standstills or readvances and reached the present outer coast at c. 9-11 ka BP. This was indicated by marine-sedimentological studies, geomorphological investigations, the findings of fossils, and the study of lake sediments. All lake sediment records from the outer coast of East Greenland, for example, are younger than 10 ka BP (Wagner et al. 2000, Wagner & Melles 2001, Bennike & Björck 2002, Wagner & Melles 2002), and no older lacustrine sediment sequences have been recovered so far from this part of Greenland. However, it was also suggested that parts of the outer coast have been ice free during the LGM. This was traced back to the findings of pre-Holocene shells, for example on Store Koldewey in Northeast Greenland (Hjort 1981) or on the north eastern Geographical Society Ø in central East Greenland (Funder & Hjort 1973, Hjort 1981). In order to better understand the past environmental and climatic history of East and Northeast Greenland, extensive studies including palaeolimnological work, Quaternary geological work, and the investigation of the recent existing lakes and soils were carried out on Store Koldewey and Geographical Society Ø during the expedition ARK XIX/4. Geographical Society Ø Store Koldewey Fig. 6-1: Map of East and Northeast Greenland. The during the field season 2003 studied islands are encircled. 51
Page 1: the Expedition ARKTIS-XIX/4 of the
Page 5 and 6: 1 Cruise summary W. Jokat The exped
Page 8 and 9: 6 1.1 Wetterverlauf ARK XIX/4a Bei
Page 10 and 11: 8 noch vor der Küste, fern davon a
Page 12 and 13: 10 northerly wind increased steadil
Page 14 and 15: 12 In the latest stages of the proj
Page 16 and 17: Profile Date/Time Start Date/Time T
Page 18 and 19: Station Typ Extra Lat Long Höhe [m
Page 20 and 21: Station Typ Extra Lat Long Höhe [m
Page 22 and 23: Date Flight Start Time End Time No
Page 32 and 33: 30 Preliminary results Along profil
Page 34 and 35: 32 In addition to the deep seismic
Page 36 and 37: 34 Fig. 2-5: Flight statistics for
Page 38 and 39: 36 Fig. 3-1: Seafloor topography of
Page 40 and 41: 38 In total, the PARASOUND system o
Page 42 and 43: 40 Figure 4.1-3: Example of PARASOU
Page 44 and 45: 42 Station Latitude Longitude Date
Page 46 and 47: 44 After PCR was finished, samples
Page 48 and 49: 46 Potsdam Lake (Shannon Island) Sc
Page 50 and 51: 48 In den Schmelzwassertümpeln kon
Page 54 and 55: 52 Store Koldewey Store Koldewey is
Page 56 and 57: 54 In the shallow ponds the hydrolo
Page 58 and 59: 56 The low amounts of solubles in t
Page 60 and 61: 58 lake core no. latitude longitude
Page 62 and 63: 60 6.3 Diatom phytoplankton and phy
Page 64 and 65: 62 Generally, all sampled benthic s
Page 66 and 67: 64 shaped profile at the top were i
Page 68 and 69: 66 depth horizon description sample
Page 70 and 71: 68 measured in the field, and the c
Page 72 and 73: 70 Summary of results The summit pl
Page 74 and 75: 72 Pre-Holocene shell material Pre-
Page 76 and 77: 74 Christensen, T.R. (1993): Methan
Page 78 and 79: 76 No EVK2-2001-00215 (ASOF-N). The
Page 80 and 81: 78 Altimeters Model 2110-2, SN 189
Page 82 and 83: 80 Mooring Latitude Longitude Water
Page 84 and 85: 82 Mooring Latitude Longitude Water
Page 86 and 87: 84 30° W 20° W 30° W Greenland 2
Page 88 and 89: Fig. 7-4: Vertical transects of pot
Page 90 and 91: 88 8 Bericht zur akustischen Vermes
Page 92 and 93: 90 Quality control sheet - Profile
Page 94 and 95: 92 Quality control sheet - Profile
Page 96 and 97: Station List Station Date Time Posi
Page 98 and 99: Station Date Time PositionLat Posit
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142 Beteiligte Institutionen / Part
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144 Fahrtteilnehmer / Participants
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