Now showing items 1-10 of 86
Evaluation of ocean carbon cycle models with data-based metrics
(American Geophysical Union, 2004-04-02)
New radiocarbon and chlorofluorocarbon-11 data from the World Ocean Circulation Experiment are used to assess a suite of 19 ocean carbon cycle models. We use the distributions and inventories of these tracers as quantitative ...
Sea ice velocity in the Fram Strait monitored by moored instruments
(American Geophysical Union, 2003-10-04)
The Fram Strait sea ice velocity was measured by means of a new method using moored Doppler Current Meters in the period 1996–2000. Almost 3 years of ice velocity observations near 79N 5W are analyzed. The average ...
Aspects on interactions between mid- to high latitude atmospheric circulation and some surface processes
(The University of Bergen, 2006-06-08)
The Arctic is a hot topic in Climate Research. A large number of signs of a warming Arctic Climate have been identified the latest years. This is of major concern in light of the increasing atmospheric content of greenhouse ...
Last Glacial Maximum over China: Sensitivities of climate to paleovegetation and Tibetan ice sheet
(American Geophysical Union, 2003-02-06)
With the boundary conditions appropriate for the Last Glacial Maximum (LGM), including ice sheets, sea surface temperatures, sea-ice distribution, atmospheric CO2 concentration, the Earth’s orbital parameters, topography, ...
Pleistocene vertical carbon isotope and carbonate gradients in the South Atlantic sector of the Southern Ocean
(American Geophysical Union and the Geochemical Society, 2003-01-10)
We demonstrate that the carbon isotopic signal of mid-depth waters evolved differently from deep waters in the South Atlantic sector of the Southern Ocean during the Pleistocene. Deep sites (>3700 m) exhibit large ...
Atlantic Ocean thermohaline circulation changes on orbital to suborbital timescales during the mid-Pleistocene
(American Geophysical Union, 2003-02-19)
Mid-Pleistocene benthic ∂18O and ∂13C time series from the North Atlantic site 983 and Ceara Rise site 928 are compared to an array of existing isotopic records spanning the Atlantic basin and the geographic extremes ...
Circulation and transformation of Atlantic and Arctic water masses in climate models
(The University of Bergen, 2011-12-09)
Ocean heat transport and associated heat loss to the atmosphere contributes significantly to the anomalously mild climate of northwestern Europe and its variability. In this thesis, the circulation and transformation of ...
Interannual variability in the wintertime air–sea flux of carbon dioxide in the northern North Atlantic, 1981–2001
Gridded fields of sea surface temperature (SST), sea level pressure (SLP), and wind speed were used in combination with data for the atmospheric mole fraction of CO2 and an empirical relationship between measured values ...
Periodic changes in the zooplankton of the North Sea during the twentieth century linked to oceanic inflow
(Blackwell Publishing, 2003)
Oceanic inflow is estimated to contribute more than 90% of the nutrient input into the North Sea. Variability in the volume, chemical properties, biological content and source of the inflowing water is thus likely to ...
Norwegian farmers' diaries used for quality control and calibration of early instrumental observations, and for temperature reconstructions
(The University of Bergen, 2008-06-10)