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Chilean Field Activities 2014

This coming Antarctic field season the Chilean Antarctic Scientific Expedition includes several projects with implications for one or more of SOOS’ Science Themes. The field work will be conducted in the South Shetland Islands and at the north western Antarctic Peninsula area.

Two projects will search for clues on current and recent glacier calving rates and its contribution to climate models. The project “Seismic facies variability and sedimentation processes in small bays and fjords of the Danco Coast, Antarctic Peninsula” (2012-2015) of Dr. This e-mail address is being protected from spambots. You need JavaScript enabled to view it.  will collect marine sediment cores in fjords off the Danco Coast, to estimate a chronology on the influx of sediment product of glacier calving. Similarly, the project “Para-ICE: towards a better understanding of Ice Calving Events” (2013-2015) of Dr. This e-mail address is being protected from spambots. You need JavaScript enabled to view it.  is measuring process-related variables of current calving events, in order to improve our models on glacier behavior and impact from climate change.

On a related issue, the direct influence of increases in freshwater input into coastal areas of the Southern Ocean due to accelerated glacier melting will be assessed by the project “Influence of freshwater flow on primary productivity, biogenic silica content and nutrients in southern Patagonia and the Antarctic Peninsula” (2012-2014) of Dr. This e-mail address is being protected from spambots. You need JavaScript enabled to view it. . This project will assess the effect of water stratification and nutrient influx derived from melting glaciers on the primary productivity of the near shore system.

Reductions in the extension and duration of sea-ice have being identified as a key factor affecting the Southern Ocean ecosystem, particularly at the Antarctic Peninsula area. The impact that sea-ice retreat has on the global productivity of the Antarctic marine ecosystem, particularly during winter, is of high concern. Precisely this issue is the topic of the project “Bio-optical modelling of Antarctic sea-ice algal growth” (2012-2014) of Dr. This e-mail address is being protected from spambots. You need JavaScript enabled to view it. .

Finally, the additional stress that marine organisms has to cope with due to the synergic effects of climate change on the Southern Ocean will be addressed by two projects this field season. The project “Impact of global change on the physiology of Antarctic seaweeds: Consequences for coastal processes in scenarios of temperature shifts and enhanced UV radiation” (2012-2015) of Dr. This e-mail address is being protected from spambots. You need JavaScript enabled to view it.  and “Coping with warming of the Southern Ocean: invertebrate responses to thermal stress conditions” (2013-2016) of Dr. This e-mail address is being protected from spambots. You need JavaScript enabled to view it. .

Click here for further information on the Chilean Antarctic Research Program.

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