FN Archimer Export Format
PT J
TI Long-Term In Situ Survey of Reactive Iron Concentrations at the EMSO-Azores Observatory
BT 
AF LAES-HUON, Agathe
   CATHALOT, Cecile
   LEGRAND, Julien
   TANGUY, Virginie
   SARRADIN, Pierre-Marie
AS 1:1;2:1;3:1;4:2;5:1;
FF 1:PDG-REM-RDT-LDCM;2:PDG-REM-GM-LCG;3:PDG-REM-RDT-SI2M;4:;5:PDG-REM-EEP;
C1 IFREMER, Ctr Brest, Inst Carnot Edrome, Dept Ressources Phys & Ecosyst Fond Mer, F-29280 Plouzane, France.
C2 IFREMER, FRANCE
   UBO, FRANCE
SI BREST
SE PDG-REM-RDT-LDCM
   PDG-REM-GM-LCG
   PDG-REM-RDT-SI2M
   PDG-REM-EEP
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.297
TC 6
UR https://archimer.ifremer.fr/doc/00342/45275/46432.pdf
LA English
DT Article
CR BIOBAZ 2013
   MOMARSAT2010
BO Pourquoi pas ?
DE ;Deep-sea observatory;hydrothermal vent;in situ chemical analyzer;iron;Monitoring the Mid-Atlantic Ridge (MoMAR)
AB A study of the temporal dynamics of iron concentrations and temperature on a faunal assemblage at the Lucky Strike vent was performed using the Tempo ecological module at the EMSO-Azores deep-sea observatory. The CHEMINI in situ analyzer was implemented on this structure to determine reactive iron concentrations in unfiltered seawater samples along with a temperature probe. Stability tests were performed on the CHEMINI analyzer before deployment (optical module, hyperbaric tests, and deep-sea calibration) for long-term in situ analysis of reactive iron (six months, 2013–2014) at the Tour Eiffel active edifice. Recorded daily, the in situ standard (25 \mu mol.L {}^{-1} ) showed excellent reproducibility (1.07%, n=522 ), confirming satisfactory analytical performance of the CHEMINI analyzer and thus validating the iron concentrations measured by the instrument. Furthermore, the analyzer proved to be reliable and robust over time. The averaged reactive iron concentration for the six-month period remained low ([Fe] =text{7.12}\pm text{2.11} \mu mol.L {}^{-1} , n=519 ), but showed some noticeable variations with temperature. Reactive iron concentrations and temperature were significantly correlated emphasizing reactive iron stabilization over the time of deployment. Period spectra indicated strong tidal influence and relevant frequencies of four to five days for both variables.
PY 2016
PD OCT
SO Ieee Journal Of Oceanic Engineering
SN 0364-9059
PU Ieee-inst Electrical Electronics Engineers Inc
VL 41
IS 4
UT 000386238000003
BP 744
EP 752
DI 10.1109/JOE.2016.2552779
ID 45275
ER

EF