Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float
Development of autonomous profiling floats, allowing for long-term continuous measurement of bio-optical variables, promises to significantly increase our knowledge of the variability of the particulate optical backscattering coefficient bbp in marine environments. However, because autonomous floats...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
American Meteorological Society
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/74521 |
| _version_ | 1848763298033434624 |
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| author | Wojtasiewicza, B. Walsh, I. Antoine, David Slawinski, D. Hardman-Mountford, N. |
| author_facet | Wojtasiewicza, B. Walsh, I. Antoine, David Slawinski, D. Hardman-Mountford, N. |
| author_sort | Wojtasiewicza, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Development of autonomous profiling floats, allowing for long-term continuous measurement of bio-optical variables, promises to significantly increase our knowledge of the variability of the particulate optical backscattering coefficient bbp in marine environments. However, because autonomous floats are designed for unattended data collection and only rarely are recovered for analysis of the condition of the sensors in situ, the quality-control analysis of float data streams is of paramount importance in both a particular dataset and the larger understanding of the response of sensors over the lifetime of the floats. Anomalous data from a backscattering sensor (MCOMS) mounted on autonomous profiling floats are reported here. The observed sensor behavior, which presents itself as significant differences in the values observed at the parking depth between profiles, caused by a steady increase in the signal during the profiling time, is neither common to all sensors nor can it be a function of changes in the particle population. A simple quality-control procedure that is able to detect this spurious sensor response is proposed. Further characterization of this effect will require laboratory experimentation under controlled conditions of temperature and pressure. |
| first_indexed | 2025-11-14T11:01:14Z |
| format | Journal Article |
| id | curtin-20.500.11937-74521 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:01:14Z |
| publishDate | 2018 |
| publisher | American Meteorological Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-745212019-08-22T07:26:59Z Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float Wojtasiewicza, B. Walsh, I. Antoine, David Slawinski, D. Hardman-Mountford, N. Development of autonomous profiling floats, allowing for long-term continuous measurement of bio-optical variables, promises to significantly increase our knowledge of the variability of the particulate optical backscattering coefficient bbp in marine environments. However, because autonomous floats are designed for unattended data collection and only rarely are recovered for analysis of the condition of the sensors in situ, the quality-control analysis of float data streams is of paramount importance in both a particular dataset and the larger understanding of the response of sensors over the lifetime of the floats. Anomalous data from a backscattering sensor (MCOMS) mounted on autonomous profiling floats are reported here. The observed sensor behavior, which presents itself as significant differences in the values observed at the parking depth between profiles, caused by a steady increase in the signal during the profiling time, is neither common to all sensors nor can it be a function of changes in the particle population. A simple quality-control procedure that is able to detect this spurious sensor response is proposed. Further characterization of this effect will require laboratory experimentation under controlled conditions of temperature and pressure. 2018 Journal Article http://hdl.handle.net/20.500.11937/74521 10.1175/JTECH-D-18-0027.1 American Meteorological Society restricted |
| spellingShingle | Wojtasiewicza, B. Walsh, I. Antoine, David Slawinski, D. Hardman-Mountford, N. Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float |
| title | Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float |
| title_full | Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float |
| title_fullStr | Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float |
| title_full_unstemmed | Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float |
| title_short | Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float |
| title_sort | inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float |
| url | http://hdl.handle.net/20.500.11937/74521 |