Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Oui |
| Statut de publication | : | Publié |
| Année de publication | : | 2018 |
| Auteurs (5) | : | WOJTASIEWICZ Bożena WALSH Ian,d ANTOINE David SLAWINSKI Dirk HARDMAN-MOUNTFORD Nick,j |
| Revue scientifique | : | Journal of Atmospheric And Oceanic Technology |
| Volume | : | 35 |
| Fascicule | : | 11 |
| Pages | : | 2137-2146 |
| DOI | : | 10.1175/JTECH-D-18-0027.1 |
| URL | : | https://doi.org/10.1175/jtech-d-18-0027.1 |
| Abstract | : | 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 data set 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 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. |
| Mots-clés | : | Data quality control, In situ oceanic observations, Profilers, oceanic |
| Commentaire | : | - |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Wojtasiewicz B, Walsh ID, Antoine D, Slawinski D, Hardman-Mountford NJ (2018) Inferring and removing a spurious response in the optical backscattering signal from an autonomous profiling float. J Atmos Ocean Tech 35: 2137-2146 | doi: 10.1175/JTECH-D-18-0027.1
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