453 Works

The Antarctic ice core chronology (AICC2012)

Lucie Bazin, Amaelle Landais, Bénédicte Lemieux-Dudon, H Toyé Mahamadou Kele, Daniel Veres, Frédéric Parrenin, Patricia Martinerie, Catherine Ritz, Emilie Capron, Vladimir Ya Lipenkov, M-F Loutre, Dominique Raynaud, Bo M Vinther, Anders M Svensson, Sune Olander Rasmussen, Mirko Severi, Thomas Blunier, Markus C Leuenberger, Hubertus Fischer, Valerie Masson-Delmotte, Jérôme A Chappellaz & Eric W Wolff
Abstract of Bazin et al. (2013): An accurate and coherent chronological framework is essential for the interpretation of climatic and environmental records obtained from deep polar ice cores. Until now, one common ice core age scale had been developed based on an inverse dating method (Datice), combining glaciological modelling with absolute and stratigraphic markers between 4 ice cores covering the last 50 ka (thousands of years before present) (Lemieux-Dudon et al., 2010). In this paper,...

Geochemistry and grain-size of sediment core PC29A, Quitralco Fjord, Chilean Patagonia, supplement to: Bertrand, Sebastien; Hughen, Konrad A; Sepúlveda, Julio; Pantoja, Silvio (2014): Late Holocene covariability of the southern westerlies and sea surface temperature in Northern Chilean Patagonia. Quaternary Science Reviews, 105, 195-208

Sebastien Bertrand, Konrad A Hughen, Julio Sepúlveda & Silvio Pantoja
The climate of Chilean Patagonia is strongly influenced by the southern westerlies, which control the amount and latitudinal distribution of precipitation in the southern Andes. In austral summer, the Southern Westerly Wind Belt (SWWB) is restricted to the high latitudes. It expands northward in winter, which results in a strong precipitation seasonality between 35 and 45°S. Here, we present a new precipitation seasonality proxy record from Quitralco fjord (46°S), where relatively small latitudinal shifts in...

Chronology and stable carbon isotopic ratios of sediments from the Western Pacific Warm Pool region, supplement to: Tierney, Jessica E; Oppo, Delia W; Rosenthal, Yair; Russell III, James M; Linsley, Braddock K (2010): Coordinated hydrological regimes in the Indo-Pacific region during the past two millennia. Paleoceanography, 25(1), PA1102

Jessica E Tierney, Delia W Oppo, Yair Rosenthal, James M Russell III & Braddock K Linsley
Instrumental data suggest that major shifts in tropical Pacific atmospheric dynamics and hydrology have occurred within the past century, potentially in response to anthropogenic warming. To better understand these trends, we use the hydrogen isotopic ratios of terrestrial higher plant leaf waxes (DDwax) in marine sediments from southwest Sulawesi, Indonesia, to compile a detailed reconstruction of central Indo-Pacific Warm Pool (IPWP) hydrologic variability spanning most of the last two millennia. Our paleodata are highly correlated...

Benthic carbon turnover, sediment pigment concentrations and sinking fluxes of POC in the southeastern Beaufort Sea during CCGS Amundsen cruise 2008, supplement to: Tremblay, Jean-Éric; Bélanger, Simon; Barber, David G; Asplin, M; Martin, J; Darnis, Gerald; Fortier, Louis; Gratton, Yves; Link, Heike; Archambault, Philippe; Sallon, Amèlie; Michel, Christine; Williams, W J; Philippe, Benoit; Gosselin, M (2011): Climate forcing multiplies biological productivity in the coastal Arctic Ocean. Geophysical Research Letters, 38(18), L18604

Jean-Éric Tremblay, Simon Bélanger, David G Barber, M Asplin, J Martin, Gerald Darnis, Louis Fortier, Yves Gratton, Heike Link, Philippe Archambault, Amèlie Sallon, Christine Michel, W J Williams, Benoit Philippe & M Gosselin
The effects of changing ice and atmospheric conditions on the upwelling of deep nutrient-laden waters and biological productivity in the coastal Beaufort Sea were quantified using a unique combination of in situ and remote-sensing approaches. Repeated instances of ice ablation and upwelling during fall 2007 and summer 2008 multiplied the production of ice algae, phytoplankton, zooplankton and benthos by 2 to 6 fold. Strong wind forcing failed to induce upward shifts in the biological productivity...

Seawater Nd and Pb isotopic record in central Pacific and Caribbean sediments, supplement to: Osborne, Anne H; Newkirk, Derrick R; Groeneveld, Jeroen; Martin, Ellen E; Tiedemann, Ralf; Frank, Martin (2014): The seawater neodymium and lead isotope record of the final stages of Central American Seaway closure. Paleoceanography, 29

Anne H Osborne, Derrick R Newkirk, Jeroen Groeneveld, Ellen E Martin, Ralf Tiedemann & Martin Frank
The shoaling and final closure of the Central American Seaway (CAS) resulted in a major change of the global ocean circulation and has been suggested as an essential driver for strengthening of Atlantic Meridional Overturning Circulation (AMOC). The exact timing of CAS closure is key to interpreting its importance. Here we present a reconstruction of deep and intermediate water Nd and Pb isotope compositions obtained from fossil fish teeth and the authigenic coatings of planktonic...

Variability of the Brazil Current during the late Holocene analysed on two marine sediment cores, supplement to: Chiessi, Cristiano Mazur; Mulitza, Stefan; Groeneveld, Jeroen; Silva, Juliana Braga; Campos, Marília de Carvalho; Gurgel, Marcio Henrique da C (2013): Variability of the Brazil Current during the late Holocene. Palaeogeography, Palaeoclimatology, Palaeoecology

Cristiano Mazur Chiessi, Stefan Mulitza, Jeroen Groeneveld, Juliana Braga Silva, Marília de Carvalho Campos & Marcio Henrique da C Gurgel
Our understanding of the centennial-scale variability of the Brazil Current (BC) during the late Holocene is elusive because of the lack of appropriate records. Here we used the Mg/Ca and oxygen isotopic composition of planktonic foraminifera from two marine sediment cores collected at 27° S and 33° S off southeastern South America to assess the late Holocene variability in the upper water column of the BC. Our results show in phase fluctuations of up to...

Mid-Pliocene palynomorph record of the North Atlantic, supplement to: De Schepper, Stijn; Head, Martin J; Groeneveld, Jeroen (2009): North Atlantic Current variability through marine isotope stage M2 (circa 3.3 Ma) during the mid-Pliocene. Paleoceanography, 24, PA4206

Stijn De Schepper, Martin J Head & Jeroen Groeneveld
The mid-Pliocene was an episode of prolonged global warmth and strong North Atlantic thermohaline circulation, interrupted briefly at circa 3.30 Ma by a global cooling event corresponding to marine isotope stage (MIS) M2. Paleoceanographic changes in the eastern North Atlantic have been reconstructed between circa 3.35 and 3.24 Ma at Deep Sea Drilling Project Site 610 and Integrated Ocean Drilling Program Site 1308. Mg/Ca ratios and d18O from Globigerina bulloides are used to reconstruct the...

High resolution isotope and Mg/Ca record of sediment core GeoB12615-4, supplement to: Romahn, Sarah; Mackensen, Andreas; Groeneveld, Jeroen; Pätzold, Jürgen (2014): Deglacial intermediate water reorganization: new evidence from the Indian Ocean. Climate of the Past, 10(1), 293-303

Sarah Romahn, Andreas Mackensen, Jeroen Groeneveld & Jürgen Pätzold
The importance of intermediate water masses in climate change and ocean circulation has been emphasized recently. In particular, Southern Ocean Intermediate Waters (SOIW), such as Antarctic Intermediate Water and Subantarctic Mode Water, are thought to have acted as active interhemispheric transmitter of climate anomalies. Here we reconstruct changes in SOIW signature and spatial and temporal evolution based on a 40 kyr time series of oxygen and carbon isotopes as well as planktic Mg/Ca based thermometry...

Stable oxygen isotope. Mg/Ca and Temperature record of Caribbean and Pacific sediments, supplement to: Groeneveld, Jeroen; Hathorne, Ed C; Steinke, Stephan; DeBey, Henry; Mackensen, Andreas; Tiedemann, Ralf (2014): Glacial induced closure of the Panamanian Gateway during Marine Isotope Stages (MIS) 95-100 (~2.5 Ma). Earth and Planetary Science Letters, 404, 296-306

Jeroen Groeneveld, Ed C Hathorne, Stephan Steinke, Henry DeBey, Andreas Mackensen & Ralf Tiedemann
The final phase of the closure of the Panamanian Gateway and the intensification of Northern Hemisphere Glaciation (NHG) both occurred during the Late Pliocene. Glacial-interglacial (G-IG) variations in sea level might, therefore, have had a significant impact on the remaining connections between the East Pacific and the Caribbean. Here, we present combined foraminiferal Mg/Ca and d18O measurements from Ocean Drilling Program (ODP) Site 1241 from the East Pacific and ODP Site 999 from the Caribbean....

Planktonic foraminifera Mg/Ca-based temperatures and planktonic foraminiferal cenus counts of core GeoB10065-7 (Lombok Basin, Indonesia), supplement to: Steinke, Stephan; Prange, Matthias; Feist, Christin; Groeneveld, Jeroen; Mohtadi, Mahyar (2014): Upwelling variability off southern Indonesia over the past two millennia. Geophysical Research Letters, 41(21), 7684-7693

Stephan Steinke, Matthias Prange, Christin Feist, Jeroen Groeneveld & Mahyar Mohtadi
Modern variability in upwelling off southern Indonesia is strongly controlled by the Australian-Indonesian monsoon and the El Niño-Southern Oscillation, but multi-decadal to centennial-scale variations are less clear. We present high-resolution records of upper water column temperature, thermal gradient and relative abundances of mixed layer- and thermocline-dwelling planktonic foraminiferal species off southern Indonesia for the past two millennia that we use as proxies for upwelling variability. We find that upwelling was generally strong during the Little...

Supplementary material: XRF core scanning data, CaCO3 values, foraminiferal carbon and oxygen isotope data, Mg/Ca data, clay mineralogy and helium isotope results, supplement to: Bornemann, André; Norris, Richard D; Lyman, Johnnie A; D'haenens, Simon; Groeneveld, Jeroen; Röhl, Ursula; Farley, Kenneth A; Speijer, Robert P (2014): Persistent environmental change after the Paleocene–Eocene Thermal Maximum in the eastern North Atlantic. Earth and Planetary Science Letters, 394, 70-81

André Bornemann, Richard D Norris, Johnnie A Lyman, Simon D'haenens, Jeroen Groeneveld, Ursula Röhl, Kenneth A Farley & Robert P Speijer
The Paleocene-Eocene Thermal Maximum (PETM; ~56 Ma) is associated with abrupt climate change, carbon cycle perturbation, ocean acidification, as well as biogeographic shifts in marine and terrestrial biota that were largely reversed as the climatic transient waned. We report a clear exception to the behavior of the PETM as a reversing climatic transient in the eastern North Atlantic (Deep-Sea Drilling Project Site 401, Bay of Biscay) where the PETM initiates a greatly prolonged environmental change...

Great Barrier Reef coral element/Ca and stable isotope data and U-Th ages from IODP Expedition 325, supplement to: Felis, Thomas; McGregor, Helen V; Linsley, Braddock K; Tudhope, Alexander W; Gagan, Michael K; Suzuki, Atsushi; Inoue, Mayuri; Thomas, Alexander L; Esat, Tezer M; Thompson, William G; Tiwari, Manish; Potts, Donald C; Mudelsee, Manfred; Yokoyama, Yusuke; Webster, Jody M (2014): Intensification of the meridional temperature gradient in the Great Barrier Reef following the Last Glacial Maximum. Nature Communications, 5, 4102

Thomas Felis, Helen V McGregor, Braddock K Linsley, Alexander W Tudhope, Michael K Gagan, Atsushi Suzuki, Mayuri Inoue, Alexander L Thomas, Tezer M Esat, William G Thompson, Manish Tiwari, Donald C Potts, Manfred Mudelsee, Yusuke Yokoyama & Jody M Webster
Tropical south-western Pacific temperatures are of vital importance to the Great Barrier Reef (GBR), but the role of sea surface temperatures (SSTs) in the growth of the GBR since the Last Glacial Maximum remains largely unknown. Here we present records of Sr/Ca and d18O for Last Glacial Maximum and deglacial corals that show a considerably steeper meridional SST gradient than the present day in the central GBR. We find a 1-2 °C larger temperature decrease...

Nd-Sr isotopes, diatom and biogenic opal content of Pliocene sediments from IODP Site 318-U1361, supplement to: Cook, Carys P; van de Flierdt, Tina; Williams, Trevor; Hemming, Sidney R; Iwai, Masao; Kobayashi, Munemasa; Jiménez-Espejo, Francisco J; Escutia, Carlota; Gonzàlez, Jhon Jairo; Khim, Boo-Keun; McKay, Robert M; Passchier, Sandra; Bohaty, Steven M; Riesselman, Christina R; Tauxe, Lisa; Sugisaki, Saiko; Lopez Galindo, Alberto; Patterson, Molly O; Sangiorgi, Francesca; Pierce, Elizabeth L; Brinkhuis, Henk; Klaus, Adam; Fehr, Annick; Bendle, James A; Bijl, Peter K; Carr, Stephanie A; Dunbar, Robert B; Flores, José-Abel; Hayden, Travis G; Katsuki, Kota; Kong, Gee Soo; Nakai, Mutsumi; Olney, Matthew P; Pekar, Stephen F; Pross, Jörg; Röhl, Ursula; Sakai, Toyusaburo; Shrivastava, Prakash Kumar; Stickley, Catherine E; Tuo, Shouting; Welsh, Kevin; Yamane, Masako (2013): Dynamic behaviour of the East Antarctic ice sheet during Pliocene warmth. Nature Geoscience, 6(9), 765-769

Carys P Cook, Tina van de Flierdt, Trevor Williams, Sidney R Hemming, Masao Iwai, Munemasa Kobayashi, Francisco J Jiménez-Espejo, Carlota Escutia, Jhon Jairo Gonzàlez, Boo-Keun Khim, Robert M McKay, Sandra Passchier, Steven M Bohaty, Christina R Riesselman, Lisa Tauxe, Saiko Sugisaki, Alberto Lopez Galindo, Molly O Patterson, Francesca Sangiorgi, Elizabeth L Pierce, Henk Brinkhuis, Adam Klaus, Annick Fehr, James A Bendle, Peter K Bijl … & Masako Yamane
Warm intervals within the Pliocene epoch (5.33-2.58 million years ago) were characterized by global temperatures comparable to those predicted for the end of this century (Haywood and Valdes, doi:10.1016/S0012-821X(03)00685-X) and atmospheric CO2 concentrations similar to today (Seki et al., 2010, doi:10.1016/j.epsl.2010.01.037; Bartoli et al., 2011, doi:10.1029/2010PA002055; Pagani et al., 2010, doi:10.1038/ngeo724). Estimates for global sea level highstands during these times (Miller et al., 2012, doi:10.1130/G32869.1) imply possible retreat of the East Antarctic ice sheet, but...

Rock-magnetic proxies from a sediment profile of Aike Lake, supplement to: Lisé-Pronovost, Agathe; St-Onge, Guillaume; Gogorza, Claudia; Haberzettl, Torsten; Jouve, Guillaume; Francus, Pierre; Ohlendorf, Christian; Gebhardt, Catalina; Zolitschka, Bernd (2015): Rock-magnetic proxies of wind intensity and dust since 51,200 cal BP from lacustrine sediments of Laguna Potrok Aike, southeastern Patagonia. Earth and Planetary Science Letters, 411, 72-86

Agathe Lisé-Pronovost, Guillaume St-Onge, Claudia Gogorza, Torsten Haberzettl, Guillaume Jouve, Pierre Francus, Christian Ohlendorf, Catalina Gebhardt & Bernd Zolitschka
The sedimentary archive from Laguna Potrok Aike is the only continuous record reaching back to the last Glacial period in continental southeastern Patagonia. Located in the path of the Southern Hemisphere westerly winds and in the source region of dust deposited in Antarctica during Glacial periods, southern Patagonia is a vantage point to reconstruct past changes in aeolian activity. Here we use high-resolution rock-magnetic and physical grain size data from site 2 of the International...

Alkenone stable carbon isotopes, carbonate stable carbon and oxygen isotopes, planktic foraminifera boron isotopes and atmospheric CO2 calculations and box model results from Ras il-Pellegrin section, Malta, supplement to: Badger, Marcus P S; Lear, Caroline H; Pancost, Richard D; Foster, Gavin L; Bailey, Trevor R; Leng, Melanie J; Abels, Hemmo A (2013): CO2 drawdown following the middle Miocene expansion of the Antarctic Ice Sheet. Paleoceanography, 28(1), 42-53

Marcus P S Badger, Caroline H Lear, Richard D Pancost, Gavin L Foster, Trevor R Bailey, Melanie J Leng & Hemmo A Abels
The development of a permanent, stable ice sheet in East Antarctica happened during the middle Miocene, about 14 million years (Myr) ago. The middle Miocene therefore represents one of the distinct phases of rapid change in the transition from the "greenhouse" of the early Eocene to the "icehouse" of the present day. Carbonate carbon isotope records of the period immediately following the main stage of ice sheet development reveal a major perturbation in the carbon...

Initial vegetation, and spore density, diversity and evenness of different arbuscular mycorrhizal fungi morphotaxa 29,36 and 39 months after experimental vegetation removal, central Argentina, supplement to: Urcelay, Carlos; Díaz, Sandra; Gurvich, Diego E; Chapin, F Stuart; Cuevas, Elvira; Domínguez, Laura S (2009): Mycorrhizal community resilience in response to experimental plant functional type removals in a woody ecosystem. Journal of Ecology, 97(6), 1291-1301

Carlos Urcelay, Sandra Díaz, Diego E Gurvich, F Stuart Chapin, Elvira Cuevas & Laura S Domínguez
1. Dominant plant functional types (PFTs) are expected to be primary determinants of communities of other above- and below-ground organisms. Here, we report the effects of the experimental removal of different PFTs on arbuscular mycorrhizal fungi (AMF) communities in a shrubland ecosystem in central Argentina.2. On the basis of the biomass-ratio hypothesis and plant resource use strategy theory, we expected the effect of removal of PFTs on AMF colonization and spores to be proportional to...

Magnesium concentrations of individual shells of Globorotalia truncatulinoides, supplement to: McKenna, V S; Prell, Warren L (2004): Calibration of the Mg/Ca of Globorotalia truncatulinoides (R) for the reconstruction of marine temperature gradients. Paleoceanography, 19(2), PA2006

V S McKenna & Warren L Prell
Recent work has provided useful Mg/Ca to water temperature calibrations for shallow-dwelling planktonic foraminifer species. Globorotalia truncatulinoides (right coiling (R)) is a deep-dwelling species that can serve as a source of information about the temporal variability in the water characteristics of the thermocline. We present a temperature calibration for the Mg/Ca in the shell of G. truncatulinoides (R) and examine some of the practical issues associated with evaluating the usefulness of the technique. The Mg/Ca...

Upper-ocean microstructure data from the tropical Atlantic, supplement to: Hummels, Rebecca; Dengler, Marcus; Bourles, Bernard (2013): Seasonal and regional variability of upper ocean diapycnal heat flux in the Atlantic cold tongue. Progress in Oceanography, 111, 52-74

Marcus Dengler & Rebecca Hummels
SST variability within the Atlantic cold tongue (ACT) region is of climatic relevance for the surrounding continents. A multi cruise data set of microstructure observations is used to infer regional as well as seasonal variability of upper ocean mixing and diapycnal heat flux within the ACT region. The variability in mixing intensity is related to the variability in large scale background conditions, which were additionally observed during the cruises. The observations indicate fundamental differences in...

Zooplankton abundance and physical oceanography during POLARSTERN cruise ARK-IX/4 to the Laptev Sea and Arctic Ocean in 1993

Ksenia N Kosobokova & Hans-Jürgen Hirche
This data collection contains surface temperature, salinity and ice coverage as well as zooplankton abundance measured on multinet samples during POLARSTERN cruise ARK-IX/4 to the Laptev Sea and Arctic Ocean in 1993.

Mg/Ca ratios in planktonic foraminifera, supplement to: Klinkhammer, Gary P; Haley, Brian A; Mix, Alan C; Benway, Heather M; Cheseby, Maziet (2004): Evaluation of automated flow-through time-resolved analysis of foraminifera for Mg/Ca paleothermometry. Paleoceanography, 19(4), PA4030

Gary P Klinkhammer, Brian A Haley, Alan C Mix, Heather M Benway & Maziet Cheseby
The primary Mg/Ca ratio of foraminiferal shells is a potentially valuable paleoproxy for sea surface temperature (SST) reconstructions. However, the reliable extraction of this ratio from sedimentary calcite assumes that we can overcome artifacts related to foraminiferal ecology and partial dissolution, as well as contamination by secondary calcite and clay. The standard batch method for Mg/Ca analysis involves cracking, sonicating, and rinsing the tests to remove clay, followed by chemical cleaning, and finally acid-digestion and...

Comparisons of observed ice properties and Envisat Advanced Synthetic Aperture Radar (ASAR) data during Nathanial B. Palmer cruise NBP09-01 and Oden cruise OSO08/09, supplement to: Tekeli, Ahmet E; Kern, Stefan; Ackley, Stephen F; Ozsoy-Cicek, Burcu; Xie, Hongjie (2011): Summer Antarctic sea ice as seen by ASAR and AMSR-E and observed during two IPY field cruises: a case study. Annals of Glaciology, 52(57), 327-336

Ahmet E Tekeli, Stefan Kern, Stephen F Ackley, Burcu Ozsoy-Cicek & Hongjie Xie
Envisat Advanced Synthetic Aperture Radar (ASAR) Wide Swath Mode (WSM) images are used to derive C-band HH-polarization normalized radar cross sections (NRCS). These are compared with ice-core analysis and visual ship-based observations of snow and ice properties observed according to the Antarctic Sea Ice Processes and Climate (ASPeCt) protocol during two International Polar Year summer cruises (Oden 2008 and Palmer 2009) in West Antarctica. Thick first-year (TFY) and multi-year (MY) ice were the dominant ice...

The number of plastic particles found in estuarine sediment and water samples of five estuaries, Durban, KwaZulu-Natal, South Africa

Trishan Naidoo
Widespread disposal of plastics negatively affects biotic and abiotic components of marine systems. Monitoring plastics transitioning through estuaries is vital in assessing terrestrial inputs to oceanic environments. Data on microplastics (particles <= 5mm) in estuaries are scant. This study determined microplastic levels within five estuaries along the Durban coastline and on intervening beaches. Plastics were isolated from estuarine sediment, beach sediment and the surface water of each estuary and characterised. Sediment at the Bayhead area...

Zooplankton biovolume time series at station STARESO (Bay of Calvi, Corsica), supplement to: Collignon, Amandine; Hecq, Jean-Henri; Jousseaume, Mathieu; Goffart, Anne (in prep.): Seasonal and interannual variability of plankton and environmental characteristics in the Bay of Calvi (Corsica). Analysis of a ten years time series. Journal of Marine Systems

Amandine Collignon, Jean-Henri Hecq, Mathieu Jousseaume & Anne Goffart
A long-term time series of subsurface zooplankton is performed in the oligotrophic Bay of Calvi (Corsica, Ligurian Sea, NW Mediterranean) from 2003 onwards. It is carried out from the marine station STARESO and is based on weekly measurement of zooplankton biovolumes. The main objectives are (i) to determine the seasonal cycle and inter-annual variability of the organisms, (ii) to study the dynamics of the populations, and (iii) to understand zooplankton interactions with other co-sampled hydrographic,...

Habitat preferences, fork lengths and isotopic ratios of Arctic charr (Salvelinus alpinus) in and around Lake Hazen, Ellesmere Island, supplement to: Sinnatamby, R Niloshini; Babaluk, John A; Power, Geoff; Reist, James D; Power, Michael (2012): Summer habitat use and feeding of juvenile Arctic charr, Salvelinus alpinus, in the Canadian High Arctic. Ecology of Freshwater Fish, 21(2), 309-322

R Niloshini Sinnatamby, John A Babaluk, Geoff Power, James D Reist & Michael Power
Owing to limited knowledge of the habitat use and diet of juvenile Arctic charr from the High Arctic, particularly young-of-the-year (YOY), we assembled data obtained from samples taken in and around Lake Hazen, Nunavut, Canada, to assess juvenile habitat use and feeding. Juvenile charr demonstrated a preference for stream environments, particularly those fed by warm upstream ponds. Charr occupying both stream and nearshore lake habitats were found to feed similarly, with chironomids occurring most frequently...

Stable oxygen isotope record of epibenthic foraminifera and water samples of the Arctic Ocean, supplement to: Mackensen, Andreas; Nam, Seung-Il (2014): Taxon-specific epibenthic foraminiferal d18O in the Arctic Ocean: Relationship to water masses, deep circulation, and brine release. Marine Micropaleontology, 113, 34-43

Andreas Mackensen & Seung-Il Nam
We determined d18OCib values of live (Rose Bengal stained) and dead epibenthic foraminifera Cibicidoides wuellerstorfi, Cibicides lobatulus, and Cibicides refulgens in surface sediment samples from the Arctic Ocean and the Greenland, Iceland, and Norwegian seas (Nordic Sea). This is the first time that a comprehensive d18OCib data set is generated and compiled from the Arctic Ocean. For comparison, we defined Atlantic Water (AW), upper Arctic Bottom Water (uABW), and Arctic Bottom Water (ABW) by their...

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