12,319 Works

Raw data of continuous VM-ADCP (vessel-mounted Acoustic Doppler Current Profiler) profile during POLARSTERN cruise ANT-XXIX/2

Olaf Boebel & Hannelore Witte

Raw data of continuous VM-ADCP (vessel-mounted Acoustic Doppler Current Profiler) profile during POLARSTERN cruise ANT-XXIX/3

Julian Gutt & Hannelore Witte

Registry of selected samples from the Tara Oceans Expedition (2009-2013)

Coordinators Tara Oceans Consortium & Participants Tara Oceans Expedition
The present data set is a registry of samples from the Tara Oceans Expedition (2009-2013) that were selected for publication in a special issue of the SCIENCE journal (see related references below). The registry provides details about the sampling location and methodology of each sample. Uniform resource locators (URLs) offer direct links to additional contextual environmental data and to the corresponding sequence runs used for analysis in the related literature publications in the SCIENCE journal.

(Table 1) Lipid content and organohalogen contaminant concentration in captive sledge dogs (Canis familiaris) and wild female polar bears (Ursus maritimus) from Greenland, supplement to: Verreault, Jonathan; Dietz, Rune; Sonne, Christian; Gebbink, Wouter A; Shahmiri, Soheila; Letcher, Robert J (2008): Comparative fate of organohalogen contaminants in two top carnivores in Greenland: Captive sledge dogs and wild polar bears. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 147(3), 306-315

Jonathan Verreault, Rune Dietz, Christian Sonne, Wouter A Gebbink, Soheila Shahmiri & Robert J Letcher
The limited knowledge and/or the inability to control physiological condition parameters that influence the fate of organohalogen contaminants (OHCs) has been the foremost confounding aspect in monitoring programs and health risk assessments of wild top predators in the Arctic such as the polar bear (Ursus maritimus). In the present comparative study, we used a potential surrogate Canoidea species for the East Greenland polar bear, the captive sledge dog (Canis familiaris), to investigate some factors that...

Photographs of tiles installed at Huinay Jetty, Comau Fjord, Chile, at 2012-08

Jürgen Laudien, Svantje Gottschlich, Verena Häussermann & Günter Försterra
This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de). If you intend to work with this data set please do not hesitate to contact the authors to discuss cooperation possibilities.

(Table S3) Carbon isotope values of diffuse micritic carbonate and associated nodules

Gabriel J Bowen, Bianca J Maibauer, Mary J Kraus, Ursula Röhl, Thomas Westerhold, Amy Steimke, Philip D Gingerich, Scott L Wing & William C Clyde
DEPTH, sediment/rock = MCD meters composite depth

Radiocarbon dates, accumulation rates, δ¹³C and July temperature of profiles obtained from Selwyn and Misaw Lake, subarctic Canada, supplement to: Kaislahti Tillman, Päivi; Holzkämper, Steffen; Kuhry, Peter; Sannel, A Britta K; Loader, Neil J; Robertson, Iain (2010): Long-term climate variability in continental subarctic Canada: A 6200-year record derived from stable isotopes in peat. Palaeogeography, Palaeoclimatology, Palaeoecology, 298(3-4), 235-246

Päivi Kaislahti Tillman, Steffen Holzkämper, Peter Kuhry, A Britta K Sannel, Neil J Loader & Iain Robertson
The rapid warming of arctic regions during recent decades has been recorded by instrumental monitoring, but the natural climate variability in the past is still sparsely reconstructed across many areas. We have reconstructed past climate changes in subarctic west-central Canada. Stable carbon and oxygen isotope ratios (d13C, d18O) were derived from a single Sphagnum fuscum plant component; alpha-cellulose isolated from stems. Periods of warmer and cooler conditions identified in this region, described in terms of...

Establishment, expansion and regeneration of aspen (Populus tremula) in the Torneträsk area, subarctic Sweden, supplement to: Van Bogaert, Rik; Jonasson, Christer; De Dapper, Morgan; Callaghan, Terry V (2010): Range expansion of thermophilic aspen (Populus tremula L.) in the swedish Subarctic. Arctic, Antarctic, and Alpine Research, 42(3), 362-375

Rik Van Bogaert, Christer Jonasson, Morgan De Dapper & Terry V Callaghan
In subarctic Sweden, recent decadal colonization and expansion of aspen (Populus tremula L.) were recorded. Over the past 100 years, aspen became c. 16 times more abundant, mainly as a result of increased sexual regeneration. Moreover, aspen now reach tree-size (>2 m) at the alpine treeline, an ecotone that has been dominated by mountain birch (Betula pubescens ssp. czerepanovii) for at least the past 4000 years. We found that sexual regeneration in aspen probably occurred...

(Appendix) Stable isotope records during the late Paleocene thermal maximum in DSDP Hole 22-213

Gregory E Ravizza, R N Norris, Jerzy S Blusztajn & Marie-Pierre Aubry

(Table 5) Palaeoclimatic, anatomic and photosynthetic data used for mechanistic carbon dioxide modelling for the Paleogene basin in Hungary and Slovenia

Boglarka Erdei, Torsten Utescher, Lilla Hably, Julia Tamas, Anita Roth-Nebelsick & Michaela Grein
V wind and mitochondrial respiration rate in the light (Rd) = rough estimate. Depth of assimilation tissue (dst), depth of stomatal pore (dst), and mitochondrial respiration rate in the light (Rd) = estimates derived from Dungan et al. (2003), Dungan & Whitehead (2006), Gamage & Jesson (2007) and Gamage (2010) for extant Elaeocarpaceae * derived from d13C of sun leaves. All other calculation = this study.# = values constrain the overlapping interval.

Continuous meteorological observations at station AWS, Warszawa Icefield, King George Island, Antarctic Peninsula, in 2010

Ulrike Falk & Hernán Sala

Continuous snow and ice temperature measurements at station AWS, Warszawa Icefield, King George Island, Antarctic Peninsula, in 2012

Ulrike Falk & Hernán Sala

Physical oceanography during Tridens cruise Tridens15/1

Physical oceanography during Dana III cruise Dana01/15

Osmium, and stable carbon and oxygen isotope record accross the PETM, supplement to: Ravizza, Gregory E; Norris, R N; Blusztajn, Jerzy S; Aubry, Marie-Pierre (2001): An osmium isotope excursion associated with the Late Paleocene thermal maximum: Evidence of intensified chemical weathering. Paleoceanography, 16(2), 155-163

Gregory E Ravizza, R N Norris, Jerzy S Blusztajn & Marie-Pierre Aubry
In the latest Paleocene an abrupt shift to more negative d13C values has been documented at numerous marine and terrestrial sites (Bralower et al., 1997, doi:10.1130/0091-7613(1997)025<0963:HRROTL>2.3.CO;2; Cramer et al., 1999; Kaiho et al., 1996, doi:10.1029/96PA01021; Kennett and Stott, 1991, doi:10.1038/353225a0; Koch et al., 1992, doi:10.1038/358319a0; Stott et al., 1996; Thomas and Shackleton, 1996, doi:10.1144/GSL.SP.1996.101.01.20; Zachos et al., 1993). This carbon isotope event (CIE) is coincident with oxygen isotope data that indicate warming of surface waters...

Physical oceanography and current meter data from mooring AWI244-3

Gerd Rohardt & Olaf Boebel
Gear ID 1: CTD-R CTD-SBE16, SN 2419

Snow thickness measurements at sea ice station PS89/032-1

Stefanie Arndt & Marcel Nicolaus
Measurements were obtained using a MagnaProbe (Snow-Hydro, Fairbanks, Alaska, USA) during walking surveys on each ice station. The walks were randomly done on the entire floe. Geographic coordinates were corrected for ice drift motion.

Snow thickness measurements at sea ice station PS89/040-1

Stefanie Arndt & Marcel Nicolaus
Measurements were obtained using a MagnaProbe (Snow-Hydro, Fairbanks, Alaska, USA) during walking surveys on each ice station. The walks were randomly done on the entire floe. Geographic coordinates were corrected for ice drift motion.

Snow density measurements at sea ice ice stations during Polarstern cruise PS89 (ANT-XXX/2)

Stefanie Arndt & Marcel Nicolaus
Measurements were obtained doing classical snow pits at every (snow-covered) ice station during PS89. Snow pits were taken once per ice station at a representative location of the floe. Measurments were done on an undisturbed shaded working wall of the snow pit.

Snow temperature measurements at sea ice ice stations during Polarstern cruise PS89 (ANT-XXX/2)

Stefanie Arndt & Marcel Nicolaus
Measurements were obtained doing classical snow pits at every (snow-covered) ice station during PS89. Snow pits were taken once per ice station at a representative location of the floe. Measurments were done on an undisturbed shaded working wall of the snow pit.

Zooplankton biomass from different transects in the northern Namibian upwelling area (Benguela Current System) during M100/1

Bettina Martin

(Table 1) Growth rate and cultivation characteristics of arctic snow and permafrost algal strains

Thomas Leya, Andreas Rahn, Cornelius Lütz & Daniel Ramias

Age determination and sedimentology of sediment core Lz1101 from the Melles Lake, supplement to: Klug, Martin; Bennike, Ole; Wagner, B (2009): Repeated short-term bioproductivity changes in a coastal lake on Store Koldewey, northeast Greenland: an indicator of varying sea-ice coverage? The Holocene, 19(4), 653-663

Martin Klug, Ole Bennike & Bernd Wagner
A lacustrine sediment core from Store Koldewey, northeast Greenland, was biogeochemically, biologically and sedimentologically investigated in order to reconstruct long- and short-term climatic and environmental variability. The chronology of the uppermost 189 cm of the record is based on ten 14C AMS age determinations of aquatic mosses. The record covers almost the entire Holocene and revealed changes on multidecadal to centennial scales. Dating of the oldest mosses shows that lacustrine biogenic productivity already began at...

Sea-floor videos and photographs (benthos) along 12 ROV profiles during POLARSTERN cruise ANT-XVII/3 (EASIZ III)

Julian Gutt & Andreas Starmans
ROV (sprint 103) equiped with 36mm still and two video cameras. Video Codecs Used: MPEG-2 Video; File Format: MPEG-2 PS (mpeg-2 program stream); Frame Width: 720 pixels; Frame Height: 544 pixels; Frame Rate: 25.000 fps; Display Aspect Ratio: 4/3; Scan Type: Progressive; Colorimetry: 4:2:0; Quality Factor: 0.613 bits/pixel-frame; Video Stream BitRate: 5 719 Kbps; Video Stream BitRate (Nominal): 6 000 Kbps; Video Stream BitRate Mode: CBR. Use the VLC media player for playing the videos...

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