Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian Sea
Current measurements in the open sea are generally acquired by Acoustic Doppler Current Profilers (ADCPs). In the case of ADCPs mounted on spar buoy, current profiles require to be post-processed, to properly take into account the buoy influence: in fact, ADCP compass may reflect alterations induced...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/9/5/466 |
| _version_ | 1797536268031098880 |
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| author | Andrea Bordone Tiziana Ciuffardi Giancarlo Raiteri Antonio Schirone Roberto Bozzano Sara Pensieri Francesca Pennecchi Paola Picco |
| author_facet | Andrea Bordone Tiziana Ciuffardi Giancarlo Raiteri Antonio Schirone Roberto Bozzano Sara Pensieri Francesca Pennecchi Paola Picco |
| author_sort | Andrea Bordone |
| collection | DOAJ |
| description | Current measurements in the open sea are generally acquired by Acoustic Doppler Current Profilers (ADCPs). In the case of ADCPs mounted on spar buoy, current profiles require to be post-processed, to properly take into account the buoy influence: in fact, ADCP compass may reflect alterations induced by the metal structure of the buoy and apparent currents can occur due to the large displacement of the platform. Uncertainty analysis is finally required to properly consider both these effects and to compute robust velocity estimates. A new methodology is tested for a measurement station in the Ligurian Sea, where an ADCP was mounted on the surface buoy of the W1-M3A (Western 1 Mediterranean Moored Multisensor Array) oceanographic observatory, facing upwards at the depth of about 40 m. Marine current numerical models and historical data in the area have been used as a basis for comparison to test the consistency of the proposed method. A very good agreement is obtained. Only minor discrepancies are reported (e.g., monthly averages from the reference model slightly underestimate the west-east current component along the entire profile), but, in general, the application of the proposed methodology ensures that the spar buoy-mounted ADCP system is able to provide reliable measurements for oceanographic studies and validation of 3D hydrodynamic models. |
| first_indexed | 2024-03-10T11:57:17Z |
| format | Article |
| id | doaj.art-b23236cc45554e9588f99865af487826 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T11:57:17Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-b23236cc45554e9588f99865af4878262023-11-21T17:14:58ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-04-019546610.3390/jmse9050466Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian SeaAndrea Bordone0Tiziana Ciuffardi1Giancarlo Raiteri2Antonio Schirone3Roberto Bozzano4Sara Pensieri5Francesca Pennecchi6Paola Picco7ENEA-Marine Environment Research Centre of S. Teresa, 19032 Pozzuolo di Lerici, ItalyENEA-Marine Environment Research Centre of S. Teresa, 19032 Pozzuolo di Lerici, ItalyENEA-Marine Environment Research Centre of S. Teresa, 19032 Pozzuolo di Lerici, ItalyENEA-Marine Environment Research Centre of S. Teresa, 19032 Pozzuolo di Lerici, ItalyCNR-IAS, Via De Marini, 6-16149 Genova, ItalyCNR-IAS, Via De Marini, 6-16149 Genova, ItalyINRiM-Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Torino, ItalyIIM-Istituto Idrografico della Marina Militare, Passo dell’Osservatorio 4, 16134 Genova, ItalyCurrent measurements in the open sea are generally acquired by Acoustic Doppler Current Profilers (ADCPs). In the case of ADCPs mounted on spar buoy, current profiles require to be post-processed, to properly take into account the buoy influence: in fact, ADCP compass may reflect alterations induced by the metal structure of the buoy and apparent currents can occur due to the large displacement of the platform. Uncertainty analysis is finally required to properly consider both these effects and to compute robust velocity estimates. A new methodology is tested for a measurement station in the Ligurian Sea, where an ADCP was mounted on the surface buoy of the W1-M3A (Western 1 Mediterranean Moored Multisensor Array) oceanographic observatory, facing upwards at the depth of about 40 m. Marine current numerical models and historical data in the area have been used as a basis for comparison to test the consistency of the proposed method. A very good agreement is obtained. Only minor discrepancies are reported (e.g., monthly averages from the reference model slightly underestimate the west-east current component along the entire profile), but, in general, the application of the proposed methodology ensures that the spar buoy-mounted ADCP system is able to provide reliable measurements for oceanographic studies and validation of 3D hydrodynamic models.https://www.mdpi.com/2077-1312/9/5/466ADCPspar buoycurrent profilesbias correctionuncertainty analysis |
| spellingShingle | Andrea Bordone Tiziana Ciuffardi Giancarlo Raiteri Antonio Schirone Roberto Bozzano Sara Pensieri Francesca Pennecchi Paola Picco Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian Sea Journal of Marine Science and Engineering ADCP spar buoy current profiles bias correction uncertainty analysis |
| title | Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian Sea |
| title_full | Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian Sea |
| title_fullStr | Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian Sea |
| title_full_unstemmed | Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian Sea |
| title_short | Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian Sea |
| title_sort | improved current estimates from spar buoy mounted adcp measurement station a case study in the ligurian sea |
| topic | ADCP spar buoy current profiles bias correction uncertainty analysis |
| url | https://www.mdpi.com/2077-1312/9/5/466 |
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