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On October 22, 2024, 9:44:17 AM UTC,
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Added resource 64PE421-ST41.xlsx to Suspended particulate matter in a submarine canyon (Whittard Canyon, Bay of Biscay, NE Atlantic Ocean): Assessment of commonly used instruments to record turbidity
| f | 1 | { | f | 1 | { |
| 2 | "author": null, | 2 | "author": null, | ||
| 3 | "author_email": null, | 3 | "author_email": null, | ||
| 4 | "code": "7b.b.hb", | 4 | "code": "7b.b.hb", | ||
| 5 | "contributor": "NIOZ Royal Netherlands Institute for Sea Research", | 5 | "contributor": "NIOZ Royal Netherlands Institute for Sea Research", | ||
| 6 | "creator_user_id": "a94b0a9c-23a0-4e53-8e3d-6384f5db6bf2", | 6 | "creator_user_id": "a94b0a9c-23a0-4e53-8e3d-6384f5db6bf2", | ||
| 7 | "creators": | 7 | "creators": | ||
| 8 | \"firstname\":\"Furu\",\"lastname\":\"Mienis\",\"affiliation\":\"Royal | 8 | \"firstname\":\"Furu\",\"lastname\":\"Mienis\",\"affiliation\":\"Royal | ||
| 9 | Netherlands Institute for Sea | 9 | Netherlands Institute for Sea | ||
| 10 | rstname\":\"Sabine\",\"lastname\":\"Haalboom\",\"affiliation\":\"Royal | 10 | rstname\":\"Sabine\",\"lastname\":\"Haalboom\",\"affiliation\":\"Royal | ||
| 11 | Netherlands Institute for Sea | 11 | Netherlands Institute for Sea | ||
| 12 | 096\",\"contactemailaddress\":\"\",\"iscorrespondingauthor\":false}]", | 12 | 096\",\"contactemailaddress\":\"\",\"iscorrespondingauthor\":false}]", | ||
| 13 | "dataset_persistent_id": "DOI:10.33591/nioz/7b.b.hb", | 13 | "dataset_persistent_id": "DOI:10.33591/nioz/7b.b.hb", | ||
| 14 | "dates": | 14 | "dates": | ||
| 15 | -05-13T22:00:00.000Z\",\"type\":\"collected\",\"information\":\"\"}]", | 15 | -05-13T22:00:00.000Z\",\"type\":\"collected\",\"information\":\"\"}]", | ||
| 16 | "deposit_date": "2020-12-02", | 16 | "deposit_date": "2020-12-02", | ||
| 17 | "depositor": "Sabine Haalboom", | 17 | "depositor": "Sabine Haalboom", | ||
| 18 | "distribution_date": "2020-12-02", | 18 | "distribution_date": "2020-12-02", | ||
| 19 | "distributor": "Research Data Management(NIOZ Royal Netherlands | 19 | "distributor": "Research Data Management(NIOZ Royal Netherlands | ||
| 20 | Institute for Sea Research)", | 20 | Institute for Sea Research)", | ||
| 21 | "doi_date_published": "2020-12-02", | 21 | "doi_date_published": "2020-12-02", | ||
| 22 | "funding_references": "[{\"name\":\"Netherlands Organisation for | 22 | "funding_references": "[{\"name\":\"Netherlands Organisation for | ||
| 23 | Scientific | 23 | Scientific | ||
| 24 | rch\",\"awardnumber\":\"0.16.161.360\",\"awardtitle\":\"NWO-VIDI\"}]", | 24 | rch\",\"awardnumber\":\"0.16.161.360\",\"awardtitle\":\"NWO-VIDI\"}]", | ||
| 25 | "geographic_coverage": "[{\"place\":\"Whittard | 25 | "geographic_coverage": "[{\"place\":\"Whittard | ||
| 26 | :-9.75,\"longitude_1\":49,\"latitude_2\":-10.25,\"longitude_2\":48}]", | 26 | :-9.75,\"longitude_1\":49,\"latitude_2\":-10.25,\"longitude_2\":48}]", | ||
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| 33 | "metadata_created": "2024-10-22T09:44:16.703470", | 33 | "metadata_created": "2024-10-22T09:44:16.703470", | ||
| n | 34 | "metadata_modified": "2024-10-22T09:44:16.703477", | n | 34 | "metadata_modified": "2024-10-22T09:44:17.216406", |
| 35 | "name": "7bbhb", | 35 | "name": "7bbhb", | ||
| 36 | "notes": "Nepheloid layers with elevated concentrations of suspended | 36 | "notes": "Nepheloid layers with elevated concentrations of suspended | ||
| 37 | particulate matter (SPM) are found throughout the world\u2019s oceans, | 37 | particulate matter (SPM) are found throughout the world\u2019s oceans, | ||
| 38 | generated by both natural processes, involving resuspension of seabed | 38 | generated by both natural processes, involving resuspension of seabed | ||
| 39 | sediment by bottom currents, and anthropogenic sediment resuspension | 39 | sediment by bottom currents, and anthropogenic sediment resuspension | ||
| 40 | due to bottom trawling, dredging and in the future potentially due to | 40 | due to bottom trawling, dredging and in the future potentially due to | ||
| 41 | deep-sea mining. These nepheloid layers represent pathways of lateral | 41 | deep-sea mining. These nepheloid layers represent pathways of lateral | ||
| 42 | SPM transport, including lithogenic and biogenic sediment, organic | 42 | SPM transport, including lithogenic and biogenic sediment, organic | ||
| 43 | matter, (trace) metals, organic pollutants and plastics. For | 43 | matter, (trace) metals, organic pollutants and plastics. For | ||
| 44 | assessment of the dispersion of these materials, it is essential that | 44 | assessment of the dispersion of these materials, it is essential that | ||
| 45 | SPM concentrations can be accurately quantified. However, this is not | 45 | SPM concentrations can be accurately quantified. However, this is not | ||
| 46 | straightforward as the detected turbidity signal not only depends on | 46 | straightforward as the detected turbidity signal not only depends on | ||
| 47 | the concentration of particles, but also on physical characteristics | 47 | the concentration of particles, but also on physical characteristics | ||
| 48 | of these particles, such as particle size. Here we present a | 48 | of these particles, such as particle size. Here we present a | ||
| 49 | comparative study of turbidity data to assess the potential | 49 | comparative study of turbidity data to assess the potential | ||
| 50 | implications different sensors have on the estimates of SPM | 50 | implications different sensors have on the estimates of SPM | ||
| 51 | concentration. Optical backscatter sensors (OBSs), transmissometers | 51 | concentration. Optical backscatter sensors (OBSs), transmissometers | ||
| 52 | and both low- and high-frequency ADCPs were deployed simultaneously in | 52 | and both low- and high-frequency ADCPs were deployed simultaneously in | ||
| 53 | the Whittard Canyon, and water samples were collected for | 53 | the Whittard Canyon, and water samples were collected for | ||
| 54 | quantification of SPM concentration and ex-situ particle size | 54 | quantification of SPM concentration and ex-situ particle size | ||
| 55 | analysis. We found that SPM concentrations inferred from the | 55 | analysis. We found that SPM concentrations inferred from the | ||
| 56 | transmissometer are easily overestimated in the biologically | 56 | transmissometer are easily overestimated in the biologically | ||
| 57 | productive surface layer due to increased light absorption. | 57 | productive surface layer due to increased light absorption. | ||
| 58 | Furthermore, we observed that depending on sensor type some particles | 58 | Furthermore, we observed that depending on sensor type some particles | ||
| 59 | are not, or less well, detected. This is due to differences in | 59 | are not, or less well, detected. This is due to differences in | ||
| 60 | particle size sensitivities of these sensors towards the diverse range | 60 | particle size sensitivities of these sensors towards the diverse range | ||
| 61 | of particle sizes found in the Whittard Canyon. Whereby the | 61 | of particle sizes found in the Whittard Canyon. Whereby the | ||
| 62 | low-frequency ADCP was most sensitive for coarse-grained material and | 62 | low-frequency ADCP was most sensitive for coarse-grained material and | ||
| 63 | the high-frequency ADCP and OBSs most sensitive for fine-grained | 63 | the high-frequency ADCP and OBSs most sensitive for fine-grained | ||
| 64 | material. In future studies, we suggest to use a combination of | 64 | material. In future studies, we suggest to use a combination of | ||
| 65 | different sensors as it enabled us to identify a recurring cycle of | 65 | different sensors as it enabled us to identify a recurring cycle of | ||
| 66 | resuspension, involving aggregation and disaggregation of SPM in the | 66 | resuspension, involving aggregation and disaggregation of SPM in the | ||
| 67 | Whittard Canyon. ", | 67 | Whittard Canyon. ", | ||
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| 71 | "approval_status": "approved", | 71 | "approval_status": "approved", | ||
| 72 | "created": "2024-10-22T06:06:56.074257", | 72 | "created": "2024-10-22T06:06:56.074257", | ||
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| 80 | "title": "Royal Netherlands Institute for Sea Research", | 80 | "title": "Royal Netherlands Institute for Sea Research", | ||
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| 85 | "production_date": "2020-12-02", | 85 | "production_date": "2020-12-02", | ||
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| 89 | "state": "active", | 113 | "state": "active", | ||
| 90 | "subject": "Earth and Environmental Sciences", | 114 | "subject": "Earth and Environmental Sciences", | ||
| 91 | "tags": [ | 115 | "tags": [ | ||
| 92 | { | 116 | { | ||
| 93 | "display_name": "Suspended particulate matter Whittard Canyon | 117 | "display_name": "Suspended particulate matter Whittard Canyon | ||
| 94 | Optical and acoustic sensors Turbidity Particle size d", | 118 | Optical and acoustic sensors Turbidity Particle size d", | ||
| 95 | "id": "bd708443-8859-4a13-8005-9d41761ff2f7", | 119 | "id": "bd708443-8859-4a13-8005-9d41761ff2f7", | ||
| 96 | "name": "Suspended particulate matter Whittard Canyon Optical | 120 | "name": "Suspended particulate matter Whittard Canyon Optical | ||
| 97 | and acoustic sensors Turbidity Particle size d", | 121 | and acoustic sensors Turbidity Particle size d", | ||
| 98 | "state": "active", | 122 | "state": "active", | ||
| 99 | "vocabulary_id": null | 123 | "vocabulary_id": null | ||
| 100 | } | 124 | } | ||
| 101 | ], | 125 | ], | ||
| 102 | "title": "Suspended particulate matter in a submarine canyon | 126 | "title": "Suspended particulate matter in a submarine canyon | ||
| 103 | (Whittard Canyon, Bay of Biscay, NE Atlantic Ocean): Assessment of | 127 | (Whittard Canyon, Bay of Biscay, NE Atlantic Ocean): Assessment of | ||
| 104 | commonly used instruments to record turbidity", | 128 | commonly used instruments to record turbidity", | ||
| 105 | "type": "dataset", | 129 | "type": "dataset", | ||
| 106 | "url": "https://dataportal.nioz.nl/doi/10.33591/nioz/7b.b.hb", | 130 | "url": "https://dataportal.nioz.nl/doi/10.33591/nioz/7b.b.hb", | ||
| 107 | "version": "1" | 131 | "version": "1" | ||
| 108 | } | 132 | } |