Sulphur compounds, methane, and phytoplankton during SONNE cruise SO202/2 (Transbrom Sonne), supplement to: Zindler, Cathleen; Bracher, Astrid; Marandino, Christa A; Taylor, Ben J; Torrecilla, Elena; Kock, Annette; Bange, Hermann W (2013): Sulphur compounds, methane, and phytoplankton: interactions along a north–south transit in the western Pacific Ocean. Biogeosciences, 10(5), 3297-3311Cathleen Zindler, Astrid Bracher, Christa A Marandino, Bettina B Taylor, Elena Torrecilla, Annette Kock & Hermann W Bange
Here we present results of the first comprehensive study of sulphur compounds and methane in the oligotrophic tropical West Pacific Ocean. The concentrations of dimethylsuphide (DMS), dimethylsulphoniopropionate (DMSP), dimethylsulphoxide (DMSO), and methane (CH4), as well as various phytoplankton marker pigments in the surface ocean were measured along a north-south transit from Japan to Australia in October 2009. DMS (0.9 nmol/l), dissolved DMSP (DMSPd, 1.6 nmol/l) and particulate DMSP (DMSPp, 2 nmol/l) concentrations were generally low,...
AGE [ka BP] tuned to LR04 stack.
DEPTH, sediment/rock [m] is tie point Depth 758 (m)(d18O +0.64 758)
Depth [m] = Core depth below sea floor (CSF) [mbsf]Depth [mcd] = Core composite depth below sea floor (CCSF)
Dinoflagellate cysts are useful for reconstructing upper water conditions. For adequate reconstructions detailed information is required about the relationship between modern day environmental conditions and the geographic distribution of cysts in sediments. This Atlas summarises the modern global distribution of 71 organicwalled dinoflagellate cyst species. The synthesis is based on the integration of literature sources together with data of 2405 globally distributed surface sediment samples that have been preparedwith a comparable methodology and taxonomy. The...
Export of algal biomass from the melting Arctic sea ice, supplement to: Boetius, Antje; Albrecht, Sebastian; Bakker, Karel; Bienhold, Christina; Felden, Janine; Fernández-Méndez, Mar; Hendricks, Stefan; Katlein, Christian; Lalande, Catherine; Krumpen, Thomas; Nicolaus, Marcel; Peeken, Ilka; Rabe, Benjamin; Rogacheva, Antonina; Rybakova, Elena; Somavilla Cabrillo, Raquel; Wenzhöfer, Frank; ARK-XXVII/3 Shipboard Scientific Party (2013): Export of algal biomass from the melting Arctic sea ice. Science, 339(6126), 1430-1432Antje Boetius, Sebastian Albrecht, Karel Bakker, Christina Bienhold, Janine Felden, Mar Fernández-Méndez, Stefan Hendricks, Christian Katlein, Catherine Lalande, Thomas Krumpen, Marcel Nicolaus, Ilka Peeken, Benjamin Rabe, Antonina Rogacheva, Elena Rybakova, Raquel Somavilla Cabrillo, Frank Wenzhöfer & ARK-XXVII/3 Shipboard Scientific Party
In the Arctic, under-ice primary production is limited to summer months and is not only restricted by ice thickness and snow cover but also by the stratification of the water column, which constrains nutrient supply for algal growth. RV Polarstern visited the ice-covered Eastern Central basins between 82 to 89°N and 30 to 130°E in summer 2012 when Arctic sea ice declined to a record minimum. During this cruise, we observed a widespread deposition of...
Paleointensity record of Site 320-U1336, supplement to: Ohneiser, Christian; Acton, Gary D; Channell, James E T; Wilson, Gary S; Yamamoto, Yuhji; Yamazaki, Toshitsugu (2013): A middle Miocene Relative Paleointensity Record from the Equatorial Pacific. Earth and Planetary Science Letters, 374, 227-238Christian Ohneiser, Gary D Acton, James E T Channell, Gary S Wilson, Yuhji Yamamoto & Toshitsugu Yamazaki
We present a high-resolution magnetostratigraphy and relative paleointensity (RPI) record derived from the upper 85 meters of IODP Site U1336, an equatorial Pacific early to middle Miocene succession recovered during Expedition 320/321. The magnetostratigraphy is well resolved with reversals typically located to within a few centimeters resulting in a well-constrained age model. The lowest normal polarity interval, from 85 to 74.87 meters, is interpreted as the upper part of Chron C6n (18.614-19.599 Ma). Another 33...
Benthic and planktic foraminiferal stable isotope record and coccolith abundance spanning the last 500,000 years of ODP Hole 121-758C, supplement to: Bolton, Clara T; Chang, Liao; Clemens, Steven C; Kodama, Kazuto; Ikehara, Minoru; Medina-Elizalde, Martín; Paterson, Greig A; Roberts, Andrew P; Rohling, Eelco J; Yamamoto, Yuhji; Zhao, Xiang (2013): A 500,000 year record of Indian summer monsoon dynamics recorded by eastern equatorial Indian Ocean upper water-column structure. Quaternary Science Reviews, 77, 167-180Clara T Bolton, Liao Chang, Steven C Clemens, Kazuto Kodama, Minoru Ikehara, Martín Medina-Elizalde, Greig A Paterson, Andrew P Roberts, Eelco J Rohling, Yuhji Yamamoto & Xiang Zhao
The Indian Summer Monsoon (ISM) is an inter-hemispheric and highly variable ocean-atmosphere-land interaction that directly affects the densely populated Indian subcontinent. Here, we present new records of palaeoceanographic variability that span the last 500,000 years from the eastern equatorial Indian Ocean, a relatively under-sampled area of ISM influence. We have generated carbon and oxygen stable isotope records from three foraminiferal species from Ocean Drilling Program Site 758 (5°N, 90°E) to investigate the oceanographic history of...
Benthic megafauna abundance in deep sea (Central Arctic) collected during POLARSTERN cruise ARK-XXVII/3 (IceArc)Antonina Rogacheva & Elena Rybakova
Data were gained by analyzing video and photos generated during OFOS surveys.
Distribution of algal aggregates and characteristics of sea ice stations investigated druing POLARSTERN cruise ARK-XXVII/3 (IceArc)Antje Boetius, Sebastian Albrecht, Karel Bakker, Christina Bienhold, Janine Felden, Mar Fernández-Méndez, Stefan Hendricks, Christian Katlein, Catherine Lalande, Thomas Krumpen, Marcel Nicolaus, Ilka Peeken, Benjamin Rabe, Antonina Rogacheva, Elena Rybakova, Raquel Somavilla Cabrillo, Frank Wenzhöfer & ARK-XXVII/3 Shipboard Scientific Party
Nutrients were analyzed in an air-conditioned lab container with a Technicon TRAACS 800, continuous flow auto analyzer. Measurements were made simultaneously on four channels: phosphate, silicate, nitrate and nitrite together, and nitrite separately. All measurements were calibrated with standards diluted in low nutrient seawater.
Depth [m] = Depth (CCSF-A)
Structural formulas are calculated on the basis of 22 oxygens. Al not recalculated for y sum.
Height of tropopause 9733 m, precipitable water content 0.4146 cm
Core characteristics and events detected in ice cores from Svalbard, supplement to: Watanabe, Okitsugu; Motoyama, Hideaki; Igarashi, Makoto; Kamiyama, Kokichi; Matoba, Sumito; Goto-Azuma, Kumiko; Narita, Hideki; Kameda, Takao (2001): Studies on climatic and environmental changes during the last few hundred years using ice cores from various sites in Nordaustlandet, Svalbard. Memoirs of National Institute of Polar Research Special Issue, 54, 227-242Okitsugu Watanabe, Hideaki Motoyama, Makoto Igarashi, Kokichi Kamiyama, Sumito Matoba, Kumiko Goto-Azuma, Hideki Narita & Takao Kameda
Ice coring and snow cover observations have been carried out at 3 sites in Nordaustlandet, Svalbard since 1995. The results of stratigraphic analyses, and chemical and d18O analyses from Vestfonna and Austfonna cores are presented here. The results from these sites show that most of the chemical constituents contained in the initial snow cover still remained in the ice cores, although re-distribution of them by melt water percolation had occurred. Anthropogenic increases in trace metals,...