Year Round Survey of Ocean-Sea Ice-Air Exchanges – the YROSIAE survey

YROSIAE survey aimed to carry out a year-round integrated survey of land-fast sea ice focusing on the study of sea ice physics and biogeochemistry in order to a) better understand and budget exchanges of energy and matter across the ocean-sea ice-atmosphere interfaces during sea ice growth and decay...

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Bibliographic Details
Main Authors: Delille, Bruno, Van Der Linden, Fanny, Fripiat, François, Champenois, Willy, Heinesch, Bernard, Zhou, Jiayun, Schoemann, Véronique, Carnat, Gauthier, Moreau, Sébastien, Vivier, Frédéric, Lourenço, Antonio, Kotovitch, Marie, Haskell, Tim, Tison, Jean-Louis
Other Authors: FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Format: Conference Object
Language:English
Published: 2015
Subjects:
sea ice
biogeochemistry
gases
Physical
chemical
mathematical & earth Sciences
Earth sciences & physical geography
Physique
chimie
mathématiques & sciences de la terre
Sciences de la terre & géographie physique
Sea ice
Online Access:https://orbi.uliege.be/handle/2268/186694
https://orbi.uliege.be/bitstream/2268/186694/1/delille_et_al_Solas%202015.ppt
Description
Summary:YROSIAE survey aimed to carry out a year-round integrated survey of land-fast sea ice focusing on the study of sea ice physics and biogeochemistry in order to a) better understand and budget exchanges of energy and matter across the ocean-sea ice-atmosphere interfaces during sea ice growth and decay and b) quantify their potential impact on fluxes of climate gases (CO2, DMS, CH4, N2O) to the atmosphere and on carbon and macro- nutrients and micro-nutrients export to the ocean. We will present the aims, overall approach and integrated sampling strategy of the YROSIAE survey. We will also discuss CO2 and N2O dynamics within sea ice. It appears that sea ice acts as a source of CO2 for the atmosphere in winter, counterbalancing spring sink. In addition, mineralization in spring appears to alleviate spring CO2 uptake. Intense nitrification in sea ice in spring fosters emission of N2O at the air-ice interface.

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