Holtappels Moritz moritz.holtappels@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/moritz-holtappels.html 0000-0003-3682-1903 Noss Christian Hancke Kasper Cathalot Cecile cecile.cathalot@ifremer.fr 0000-0002-0868-7201 McGinnis Daniel F danielm@biology.sdu.dk 0000-0002-6163-4299 Lorke Andreas 0000-0001-5533-1817 Glud Ronnie N rnglud@biology.sdu.dk 0000-0002-7069-893X 2014 (Exp. 2) Artificial oxygen fluxes measured by the eddy correlation method using stirring-sensitive oxygen microsensor in a flume experiment dataset https://doi.org/10.1594/PANGAEA.838438 2014-11-11T09:14:48 https://doi.org/10.1594/PANGAEA.838341 Holtappels Moritz moritz.holtappels@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/moritz-holtappels.html 0000-0003-3682-1903 Noss Christian Hancke Kasper Cathalot Cecile cecile.cathalot@ifremer.fr 0000-0002-0868-7201 McGinnis Daniel F danielm@biology.sdu.dk 0000-0002-6163-4299 Lorke Andreas 0000-0001-5533-1817 Glud Ronnie N rnglud@biology.sdu.dk 0000-0002-7069-893X 2015 Aquatic Eddy Correlation: Quantifying the Artificial Flux Caused by Stirring-Sensitive O2 Sensors journal article PLoS ONE 10(1) https://doi.org/10.1371/journal.pone.0116564 e0116564 not specified MARUM Center for Marine Environmental Sciences https://www.marum.de/en/ MARUM - Center for Marine Environmental Sciences, University Bremen MARUM http://www.marum.de/ https://ror.org/04ers2y35 Flume_Eddy_2013_EXP_2 Experiment EXP Flume experiments were conducted in February 2013 at the Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany 8880 CC-BY-3.0 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ Flume experiments were conducted in February 2013 at the Institute for Environmental Sciences, University of Koblenz-Landau Landau. Experiments were performed in a closed oval-shaped acrylic glass flume with cross-sectional width of 4 cm and height of 10 cm and total length of 54 cm. The fluid flow was induced by a propeller driven by a motor and mean flow velocities of up to 20 cm s-1 were generated by applying voltages between 0 V and 4 V DC. The flume was completely sealed with an acrylic glass cover. Oxygen sensors were inserted through rubber seal fittings and allowed positioning the sensors with inclinations to the main flow direction of ~60°, ~95° and ~135°. A Clark type electrochemical O2 microsensor with a low stirring sensitivity (0.7%) was tested and a fast-responding needle-type O2 optode (PyroScience GmbH, Germany) was used as reference as optodes should not be stirring sensitive. Instantaneous three-dimensional flow velocities were measured at 7.4 Hz using stereoscopic particle image velocimetry (PIV). The velocity at the sensor tip was extracted. The correlation of the fluctuating O2 sensor signals and the fluctuating velocities was quantified with a cross-correlation analysis. A significant cross-correlation is equivalent to a significant artificial flux. For a total of 18 experiments the flow velocity was adjusted between 1.7 and 19.2 cm s-1, and 3 different orientations of the electrochemical sensor were tested with inclination angles of ~60°, ~95° and ~135° with respect to the main flow direction. In experiments 16-18, wavelike flow was induced, whereas in all other experiments the motor was driven by constant voltages. Flow velocity, water Vel water m/s water http://purl.obolibrary.org/obo/CHEBI_15377 Linear Velocity http://dbpedia.org/resource/Velocity Particle Image Velocimetry (PIV) PIV https://en.wikipedia.org/wiki/Particle_image_velocimetry Holtappels Moritz moritz.holtappels@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/moritz-holtappels.html 0000-0003-3682-1903 longitudinal velocity Vel water [m/s] (longitudinal velocity, Partic...) Flow velocity, water Vel water m/s water http://purl.obolibrary.org/obo/CHEBI_15377 Linear Velocity http://dbpedia.org/resource/Velocity Particle Image Velocimetry (PIV) PIV https://en.wikipedia.org/wiki/Particle_image_velocimetry Holtappels Moritz moritz.holtappels@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/moritz-holtappels.html 0000-0003-3682-1903 vertical velocity Vel water [m/s] (vertical velocity, Particle I...) Flow velocity, water Vel water m/s water http://purl.obolibrary.org/obo/CHEBI_15377 Linear Velocity http://dbpedia.org/resource/Velocity Particle Image Velocimetry (PIV) PIV https://en.wikipedia.org/wiki/Particle_image_velocimetry Holtappels Moritz moritz.holtappels@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/moritz-holtappels.html 0000-0003-3682-1903 transversal velocity Vel water [m/s] (transversal velocity, Particl...) Oxygen O2 µmol/l oxygen O https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25805 Molar Concentration Clark type electrochemical Oxygen microsensor Chemical property sensors dissolved gas sensors http://vocab.nerc.ac.uk/collection/L05/current/351/ Holtappels Moritz moritz.holtappels@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/moritz-holtappels.html 0000-0003-3682-1903 O2 [µmol/l] (Clark type electrochemical Ox...) citable author10758 author34022 author38540 author46324 author53212 author53213 author53214 event2752500 inst277 journal13007 license101 method7423 method8671 method8672 param107870 param754 pi34022 project4011 ref65946 term2299463 term2606205 term38494 term43876 term44030 term67625 topotype1