Ocean Acoustics
Due to construction work in the sea, shipping, and gas and oil extraction, the oceans are becoming increasingly louder. A comprehensive international study has now shown that this n

Anthropogenic impacts on particulate organic carbon cycling in the North Sea [Translate to English:] Automatisierte in-situ Messung durch ein benthisches Absatzgestell. (Photo: Alfred-Wegener-Institut) [...] investigate the transport and accumulation of particulate organic carbon within the North Sea and how anthropogenic activities might alter the potential for carbon sequestration in marine sediments. Sediments deposited [...] ability to predict sedimentation processes is limited especially in the North Sea. Additionally, anthropogenic activities, such as bottom trawling, can alter POC sedimentation, releasing the deposited carbon

Global Carbon Budget - Ocean Accurate assessment of anthropogenic carbon dioxide (CO 2 ) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere – the “global carbon budget” [...] land sink have approximately balanced. The oceans are therefore the most important net sink for anthropogenic CO 2 emissions. The ocean in the Global Carbon Budget Less than half of all CO 2 emissions remain [...] land sink have approximately balanced. The oceans are therefore the most important net sink for anthropogenic CO 2 emissions. Each year, we collect estimates of the ocean carbon sink from global ocean bi

Waters of the Weddell Sea, reveal a steady CO 2 increase, of likely anthropogenic origin, as surface water, charged with anthropogenic CO 2 , is a major component with the formation of WSBW (Van Heuven [...] Heuven et al. 2011). The findings reflect the deep-sea sequestration of anthropogenic CO 2 , thus contributing to diminishing the burden of excess CO 2 in the atmosphere. The largest increase is found for NC [...] NC T in the surface layer (Van Heuven et al. 2014). Here, uptake of excess CO 2 , i.e. anthropogenic CO 2 , from the atmosphere has obviously occurred. Fig. 7: Ocean temperatures for multiple years along

Resilience and vulnerability of the central Arctic Ocean food web to cumulative stress by warming and anthropogenic pollution. Head of Group: Dr. Doreen Kohlbach Figure 1 (Graphic: Doreen Kohlbach) Global warming [...] retreat, increasing influx of Atlantic waters, riverine input and marine traffic will bring more anthropogenic pollutants, even to remote Arctic regions, where they are entrained in water and sea ice, and [...] absent. In this context, Double-Trouble aims at i) assessing trophic structures and the degree of anthropogenic pollution under current environmental conditions and ii) simulating cumulative effects of warming

Climate change arises from natural and anthropogenic external forcing, as well as from variations within the climate system. Whereas synoptic to interannual variations in the climate system are well observed [...] time-scales. Estimating that variability is the basis for the detection and attribution of the anthropogenic component and determines the range of plausible future climate changes. Imprints created during

Our mission is to characterize the implications of anthropogenic underwater noise on marine invertebrates and ecosystems The increase of anthropogenic underwater noise (AUN) has altered marine acoustic

research project APOC, led by the Alfred Wegener Institute, has investigated how climate change and anthropogenic activities and pressure impact the carbon cycle in the North Sea. The final event took place in

today we will provide some information on the work of our colleagues here on board assessing anthropogenic impacts on the marine ecosystem on our way from Bremerhaven to Fram Strait (and back) and at

surface has risen noticeably over the past decades. This warming is to a large extent due to the anthropogenic emissions of CO2 that amplify the natural greenhouse effect. Observations show, however, that