Anomalies of oxygen measurements performed with Aanderaa optodes
Four sets of measurements performed between 2005 and 2010 in the deep central Atlantic, and in deep Mediterranean Sea, and the Arctic Ocean revealed a strange performance of Aanderaa Optode 3830 sensors mounted on RCM11 current meters in low current regimes (current speeds > 10 cm s- 1) . All oxy...
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ftingv:oai:www.earth-prints.org:2122/7443 2023-05-15T15:08:58+02:00 Anomalies of oxygen measurements performed with Aanderaa optodes Lo Bue, Nadia Lo Bue, Nadia; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Làzaro, Antoni Mànuel; Technical University of Catalonia (UPC) Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Làzaro, Antoni Mànuel Technical University of Catalonia (UPC) 2011-09-22 http://hdl.handle.net/2122/7443 en eng MarTech2011 http://hdl.handle.net/2122/7443 open Oxygen 01. Atmosphere::01.03. Magnetosphere::01.03.06. Instruments and techniques Oral presentation 2011 ftingv 2022-07-29T06:06:07Z Four sets of measurements performed between 2005 and 2010 in the deep central Atlantic, and in deep Mediterranean Sea, and the Arctic Ocean revealed a strange performance of Aanderaa Optode 3830 sensors mounted on RCM11 current meters in low current regimes (current speeds > 10 cm s- 1) . All oxygen data sets collected during these deployments showed significant drops of oxygen (of the order of 50-100 ìmol/l) affecting the Optode data stability in low hydrodynamic conditions (fig.1). High correlations between all acquired parameters (i.e. temperature, turbidity, speed and direction of currents) allowed verifying that no unusual event perturbed the mooring areas during the periods of acquisition, although natural events responsible of so abrupt, short and intense oxygen variations can’t be easily found. Despite the well-known performance of the Aanderaa Optodes, these experiences suggested that the data acquired by optodes installed on RCM11s could not be always reliable, especially in low energy systems (typical for the deep ocean) and that current speeds should always be considered in order to verify the reliability of the data recorded. A series of test in controlled water condition was performed in order to better understand eventual sensor dependence on speed current variations and to evaluate sensor stability in quasi-stationary water. Published Cadiz 1.8. Osservazioni di geofisica ambientale open Other/Unknown Material Arctic Arctic Ocean Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Arctic Arctic Ocean |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Oxygen 01. Atmosphere::01.03. Magnetosphere::01.03.06. Instruments and techniques |
spellingShingle |
Oxygen 01. Atmosphere::01.03. Magnetosphere::01.03.06. Instruments and techniques Lo Bue, Nadia Anomalies of oxygen measurements performed with Aanderaa optodes |
topic_facet |
Oxygen 01. Atmosphere::01.03. Magnetosphere::01.03.06. Instruments and techniques |
description |
Four sets of measurements performed between 2005 and 2010 in the deep central Atlantic, and in deep Mediterranean Sea, and the Arctic Ocean revealed a strange performance of Aanderaa Optode 3830 sensors mounted on RCM11 current meters in low current regimes (current speeds > 10 cm s- 1) . All oxygen data sets collected during these deployments showed significant drops of oxygen (of the order of 50-100 ìmol/l) affecting the Optode data stability in low hydrodynamic conditions (fig.1). High correlations between all acquired parameters (i.e. temperature, turbidity, speed and direction of currents) allowed verifying that no unusual event perturbed the mooring areas during the periods of acquisition, although natural events responsible of so abrupt, short and intense oxygen variations can’t be easily found. Despite the well-known performance of the Aanderaa Optodes, these experiences suggested that the data acquired by optodes installed on RCM11s could not be always reliable, especially in low energy systems (typical for the deep ocean) and that current speeds should always be considered in order to verify the reliability of the data recorded. A series of test in controlled water condition was performed in order to better understand eventual sensor dependence on speed current variations and to evaluate sensor stability in quasi-stationary water. Published Cadiz 1.8. Osservazioni di geofisica ambientale open |
author2 |
Lo Bue, Nadia; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Làzaro, Antoni Mànuel; Technical University of Catalonia (UPC) Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Làzaro, Antoni Mànuel Technical University of Catalonia (UPC) |
format |
Other/Unknown Material |
author |
Lo Bue, Nadia |
author_facet |
Lo Bue, Nadia |
author_sort |
Lo Bue, Nadia |
title |
Anomalies of oxygen measurements performed with Aanderaa optodes |
title_short |
Anomalies of oxygen measurements performed with Aanderaa optodes |
title_full |
Anomalies of oxygen measurements performed with Aanderaa optodes |
title_fullStr |
Anomalies of oxygen measurements performed with Aanderaa optodes |
title_full_unstemmed |
Anomalies of oxygen measurements performed with Aanderaa optodes |
title_sort |
anomalies of oxygen measurements performed with aanderaa optodes |
publishDate |
2011 |
url |
http://hdl.handle.net/2122/7443 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
MarTech2011 http://hdl.handle.net/2122/7443 |
op_rights |
open |
_version_ |
1766340224436142080 |