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Spatial distribution of the iron supply to phytoplankton in the Southern Ocean: a model study
Spatial distribution the iron supply phytoplankton the Southern Ocean a model study
2010/1/21
An upgraded version of the biogeochemical model SWAMCO is coupled to the ocean-sea-ice model NEMO-LIM to explore processes governing the spatial distribution of the iron supply to phytoplankton in the...
Climatic transitions in the Arctic as revealed by mineralogical evidence from the Upper Cenozoic sediments in the central Arctic Ocean and the Yermak Plateau
Climatic transitions mineralogical evidence Upper Cenozoic sediments central Arctic Ocean
2009/12/2
Mineralogical characteristics of the sediments can be used to evaluate critical climate transitions in the Arctic Ocean based on a close relationship between ice-sheet initiation, ice rafting and sea-...
Extensive local seabed disturbance,erosion and mass wasting on Alpha Ridge,Central Arctic Ocean:possible evidence for an extra-terrestrial impact?
local seabed disturbance Central Arctic Ocean possible evidence extra-terrestrial impact
2009/12/2
Sub-bottom sediments within a 200 x 600 km area on the crest and south slope (water depth 1200-2500 meter) of the submarine Alpha Ridge in the central Arctic Ocean have been locally disrupted down to ...
Exploring the Arctic margins and the Central Arctic Ocean:An introduction
Arctic margins Central Arctic Ocean introduction
2009/12/2
The Arctic is one of the few underexplored frontiers on the Earth. The present NJG issue consists of papers presented at the Arctic Conference Days in Tromsø in September 2007. The 10 papers pr...
From laboratory manipulations to Earth system models:scaling calcification impacts of ocean acidification
laboratory manipulations Earth system models calcification impacts ocean acidification
2010/1/21
The observed variation in the calcification responses of coccolithophores to changes in carbonate chemistry paints a highly incoherent picture, particularly for the most commonly cultured "species", E...
The Arctic Ocean marine carbon cycle:evaluation of air-sea CO2 exchanges,ocean acidification impacts and potential feedbacks
Arctic Ocean marine carbon cycle evaluation air-sea CO2 exchanges ocean acidification impacts
2010/1/21
At present, although seasonal sea-ice cover mitigates atmosphere-ocean gas exchange, the Arctic Ocean takes up carbon dioxide (CO2) on the order of ?66 to ?199 Tg C year?1 (1012 g C), contributing 5–1...
Calcium carbonate saturation in the surface water of the Arctic Ocean:undersaturation in freshwater influenced shelves
Calcium carbonate saturation surface water Arctic Ocean freshwater influenced shelves
2010/1/21
In the summer of 2005, we sampled surface water and measured pH and total alkalinity (AT) underway aboard IB Oden along the Northwest Passage from Cape Farewell (South Greenland) to the Chukchi Sea. W...
Skill assessment of the PELAGOS global ocean biogeochemistry model over the period 1980–2000
Skill assessment PELAGOS global ocean biogeochemistry model period 1980–2000
2010/1/21
Global Ocean Biogeochemistry General Circulation Models are useful tools to study biogeochemical processes at global and large scales under current climate and future scenario conditions. The credibil...
Bioavailability of organically bound Fe to model phytoplankton of the Southern Ocean
Bioavailability organically bound Fe phytoplankton Southern Ocean
2010/1/21
Iron (Fe) is known to be mostly bound to organic ligands and to limit primary productivity in the Southern Ocean. It is thus important to investigate the bioavailability of organically bound Fe. In th...
Impact of anthropogenic ocean acidification on thermal tolerance of the spider crab Hyas araneus
anthropogenic ocean acidification thermal tolerance spider crab Hyas araneus
2010/1/21
Future scenarios for the oceans project combined developments of CO2 accumulation and global warming and their impact on marine ecosystems. The synergistic impact of both factors was addressed by stud...
Sahara dust, ocean spray, volcanoes, biomass burning: pathways of nutrients into Andean rainforests
Sahara dust ocean spray volcanoes Andean rainforests
2010/1/28
Regular rain and fogwater sampling in the Podocarpus National Park, on the humid eastern slopes of the Ecuadorian Andes, along an altitude profile between 1960 and 3180 m, has been carried out since 2...
Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks:results from an atmosphere-ocean general circulation model
Carbon-nitrogen interactions climate-carbon cycle feedbacks atmosphere-ocean general circulation model
2010/1/21
Inclusion of fundamental ecological interactions between carbon and nitrogen cycles in the land component of an atmosphere-ocean general circulation model (AOGCM) leads to decreased carbon uptake asso...
Technical Note:Approaches and software tools to investigate the impact of ocean acidification
Approaches software tools impact ocean acidification
2010/1/21
Although future changes in the seawater carbonate chemistry are well constrained, their impact on marine organisms and ecosystems remains poorly known. The biological response to ocean acidification i...
The influence of hypercapnia and the infaunal brittlestar Amphiura filiformis on sediment nutrient flux – will ocean acidification affect nutrient exchange?
hypercapnia brittlestar Amphiura filiformis sediment nutrient flux ocean acidification
2010/1/21
Rising levels of atmospheric carbon dioxide and the concomitant increased uptake of this by the oceans is resulting in hypercapnia-related reduction of ocean pH. Research focussed on the direct effect...
Planktic foraminiferal shell thinning in the Arabian Sea due to anthropogenic ocean acidification?
Planktic foraminiferal shell thinning Arabian Sea anthropogenic ocean acidification
2010/1/21
About one third of the anthropogenic carbon dioxide (CO2) released into the atmosphere in the past two centuries has been taken up by the ocean. As CO2 invades the surface ocean, carbonate ion concent...