00000nam 2200000za 4500 9.801188 CaOODSP 20200330150908 ta 150605s2015 bccd b f000 0 eng d 978-0-660-02511-7 978-0-660-02512-4 CaOODSP eng eng fre n-cn--- Fs97-18/308E Fs97-18/308E-PDF Johannessen, S. C. (Sophia C.), 1972- Seasonality and physical control of water properties and sinking and suspended particles in Douglas Channel, British Columbia / S.C. Johannessen, C.A. Wright, and D.J. Spear. Saisonnalité et contrôle physique des propriétés de l'eau et des particules en suspension ou qui sombrent dans le chenal Sidney, B.C. : Fisheries and Oceans Canada, 2015. iv, 26 p. : graphs ; 28 cm. Canadian technical report of hydrography and ocean sciences, 0711-6764 ; 308 Includes bibliographical references (p. 12-13). Water properties and particles in Douglas Channel were characterized during four cruises (July 2013, April, July and October 2014), and with moored sensors and sediment traps (July 2013-June 2014.) An outflowing surface layer 10-30 m thick, driven by Kitimat and Kemano River discharge, overlay a mid-depth layer that exchanged with Hecate Strait. Deep-water renewal in June increased the concentration of oxygen by 1 mL/L to 3.5 mL/L. The surface layer was turbid (beam attenuation coefficient ≤6 m-1). The sinking particle flux at 50 m was 438 g m-2yr-1,and the organic carbon flux 37 gC m-2yr-1. Fluxes of particles and organic carbon peaked in late May, during the river freshet. The concentration of orga nic carbon in the sinking particles was highest in August and September (12-13%), except for a single peak in mid-November (22%). Text in English, abstract in English and French. gccst Hydrography Wright, Cynthia. Spear, D. J. Canada. Department of Fisheries and Oceans. Seasonality and physical control of water properties and sinking and suspended particles in Douglas Channel, British Columbia (CaOODSP)9.801189 Canadian technical report of hydrography and ocean sciences, 0711-6764 ; 308. (CaOODSP)9.514684