RFG 2018 Conference

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Northern carbon sink

Peatlands cover only 3 % of earth’s surface, they contain around 450 Gt of carbon, representing 30 % of the total soil carbon. Peatlands can form on mineral ground by paludification or on open water by terrestrialization. Annually, 5000 km2 of peatlands are destroyed by humans, which is 10 times faster than peatland expansion during the Holocene. Peatland wise use and restoration can crucial for climate change mitigation.

larvikite

larvikite (lar'-vik-ite). An alkalic syenite, grading to monzonite, composed of phenocrysts of two feldspars (esp. oligoclase and alkali feldspar), often intimately intergrown, which comprise up to 90% of the rock, with diopsidic augite and titanian augite as the chief mafic minerals, and accessory apatite (generally abundant), ilmenite, and titaniferous magnetite, and less commonly olivine, orthopyroxene, biotite, and quartz or feldspathoids (less than 10 percent by volume). Its name, given by Brögger in 1890, is derived from Larvik, Norway.

Crowned Elephant Seal

This female elephant seal is wearing a device recording unique oceanographic data in the remote Southern Ocean (temperature, salinity, fluorimetry and depth combined with a geolocalisation Argos system). The tag was attached before her post-breeding trip at sea, 4 months previously. It was 7 in the morning when I took this shot, she was just back on land and we were preparing our material to retrieve the tag. A Great Albatross is flying in the background. Shot with a Canon 7D mark II ,24-105mm Canon lens, 105mm focal length, f/4, 1/640s, and ISO 100.

Unwelcoming coastline

This jagged coastline belongs to the East island of the Crozet archipelago. The photo was taken from the "Marion Dufresne II" research vessel on its way bringing supplies to the French Southern and Antarctic Lands. Shot with a Canon 7D mark II ,24-105mm Canon lens, 105mm focal length, f/6.3, 1/400s, and ISO 100.

Windy conditions in Kerguelen islands

The Kerguelen islands are located in the latitude band of the Roaring Forties. The photo was shot from the beach of Cap Ratmanof at the very East of the main island. The westerly wind was 30 m/s, constraining us to stay in the wooden cabin and to stop our bio-logging research activities. The wildlife (King Penguins here) didn't seem very disturbed by this extreme weather. Shot with a Canon 7D mark II ,24-105mm Canon lens, 98mm focal length, f/4, 1/800s, and ISO 100.

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