thephotosocietyのインスタグラム(thephotosociety) - 3月16日 03時45分

Photo by @nickcobbing // This material is the ‘glue’ that holds together an ecosystem; polar bears walk across it, walrus haul out on it and ivory gulls feed on its surface. The substance is Arctic Ocean sea ice, this thin section of it was photographed inside a lab on a research ship in the Arctic Ocean. The structure of crystals within the ice is revealed by using a large polarising filter placed over the top by scientists. Each winter the Arctic sea ice changes seasonally -shrinking in summer and growing in the winter. At least that’s what is meant to happen! This winter the maximum extent of the Arctic sea ice is much lower than the recorded average. The trend for the sea ice summer minimum (recorded in early September) is also sharply downwards, as shown by nearly 40 years of satellite records. The survival of a unique ecosystem depends on the temperatures in the Arctic Ocean and the atmosphere above its frozen surface, right now these are rising considerably. Follow @nickcobbing for more arctic stories. If you’re interested in this research follow @oceanseaicenpi to see the work of scientists working with sea ice in the arctic.
#arctic #ice #science #research #cryosphere #seaice #oceanography #physicaloceanography #fieldwork #detail

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