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| Data set name | Bathymetric Data (Gulf of Cadiz, MSM36) |
| Discipline | |
| Parameter groups | |
| Discovery parameter | |
| GEMET-INSPIRE themes | Oceanographic geographical features |
| Abstract | Bathymetry based on data recorded during MSM36 between 18.02.2014 and 17.03.2014 at the Moroccan continental margins. The MSM36 cruise carried out multidisciplinary research on the long-term development of cold-water coral ecosystems in selected areas along the Moroccan continental margins in the Mediterranean Sea and in the Atlantic Ocean. The key instrument to be used during this expedition was the Bremen Deep Sea Drill Rig MeBo. CI Citation: Paul Wintersteller (seafloor-imaging@marum.de): Responsible party for bathymetry post-processing and its products. Description of processed data sources: During the MSM36 cruise the Kongsberg EM122 multi-beam echo-sounder was used. The EM122 uses a nominal sounding frequency of 12 kHz. 288 beams (up to 800 soundings with equidistant and dual swath mode) soundings with a 2°/2° footprint are formed for each ping while the seafloor is detected using amplitude and phase information for each beam sounding. For further information consult https://www.km.kongsberg.com/. During the cruise, in the Atlantic part of the research area, the acquisition computer of the EM122 failed and a restart on a different computer resulted in wrong leaver arm values for a part of the survey. The rest of the time the system was stable. Responsible person during this cruise / PI: Stefanie Gaide (sgaide@marum.de). |
| Data format | |
| Data size | 1961.000 MB
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| Data set creation date | 20240415 |
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| Map | |
| GML id | mc01 |
| GML objects | | Name | Description |
|---|
| _1 | curve n°1 from multicurve | | _2 | curve n°2 from multicurve | | _3 | curve n°3 from multicurve | | _4 | curve n°4 from multicurve | | _5 | curve n°5 from multicurve | | _6 | curve n°6 from multicurve | | _7 | curve n°7 from multicurve | | _8 | curve n°8 from multicurve |
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| Datum | World Geodetic System 84 / World Mercator |
| Measuring area type | curve |
| Sea regions | |
| Location qualification | Both (Landward + beyond the 12 NM boundary) |
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| Start date | 20140302 |
| Start time | 09:00:00 |
| End date | 20140314 |
| End time | 09:00:00 |
| Temporal resolution | 12 |
| Temporal resolution | Days |
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| Instrument/gear category | |
| Device type | |
| Platform type | |
| Cruise name | MSM36 MoccoMebo |
| Alternative cruise name | MSM36 |
| Cruise start date | 20140218 |
| Cruise Summary Report (CSR) | MSM36 - Maria S. Merian(06M2) |
| Station name | Eastern Atlantic Survey |
| Alternative station name | - |
| Station start date | 20140302 |
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| Data originator | Center for Marine Environmental Sciences, University of Bremen |
| Data custodian | Center for Marine Environmental Sciences, University of Bremen |
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| Data Distributor | PANGAEA, Data Publisher for Earth & Environmental Science (PANGAEA) |
| Database reference | PANGAEA
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| Access/ordering of data | web data access with registration |
| Access restriction | |
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| Publications | https://doi.pangaea.de/10.1594/PANGAEA.893200
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| Quality info | | Name | Date | Comment |
|---|
| COMMISSION REGULATION (EC) No 1205/2008 of 3 December 2008 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards metadata | 2008-12-04 | See the referenced specification | | COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services | 2010-12-08 | See the referenced specification | | QI_Horizontal | 2017-09-18 | smaller than 20m | | Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services | 2010-12-08 | See the referenced specification | | QI_Vertical | 2017-09-18 | MBES low frequency (smaller than 100kHz) | | QI_Purpose | 2017-09-18 | Bathymetric/morphologic survey | | QI_Lineage | 2017-09-18 | Description of data processing: Postprocessing and products were conducted by the Seafloor-Imaging group of MARUM, responsible person: Paul Wintersteller (seafloor-imaging@marum.de). The open source software MB-system suite (Caress, D.W., and D.N. Chayes, MB-System Version 5, Open source software distributed from the MBARI and L-DEO web sites, 2000-2012.) was utilized for this purpose. A tide correction was applied, based on the Oregon State University (OSU) tidal prediction software (OTPS) that is retrievable through MB-System. CTD measurements during the MSM36 were sufficient to represent the changes in the sound velocity throughout the study area. A part of the survey lines are missing the installation parameters due to the failure of the acquisition computer, therefore, the pitch, heave, heading and sonar offsets of the lever arms had to reapplied for these lines (mbset). Bathymetric data has been manually cleaned for existing artefacts with mbeditviz. NetCDF (GMT) grids of the product and the statistics were created using mbgrid No total propagated uncertainty (TPU) has been calculated to gather vertical or horizontal accuracy. The currently published bathymetric grid of the cruise has a resolution of 125 m. A higher resolution is, at least partly, achievable. The grid extended with _num represents a raster dataset with the statistical number of beams/depths taken into account to create the depth of the cell. The extended "_sd"-grid contains the standard deviation for each cell. All grids produced are retrievable through the PANGAEA archive (Gaide, Stefanie; Bender, Maren; Wintersteller, Paul (2018): Gridded EM122 multibeam-echosounder bathymetry of cruise MSM36 - Gulf of Cadiz [dataset]. MARUM - Center for Marine Environmental Sciences, University Bremen, PANGAEA, https://doi.org/10.1594/PANGAEA.893200) | | Commision Regualtion (EC) No 1205/2008 of 3 December 2008 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards metadata | 2008-12-04 | See the referenced specification |
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| Lineage | The data centres apply standard data quality control procedures on all data that the centres manage. Ask the data centre for details. |
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| CDI-record id | 3709370 |
| Version | 0 |
| CDI-record initial import date | 2024-06-26 13:38:46.053 |
| CDI-record last update | 2024-06-26 13:38:47.447 |
| Point of contact | Teledyne RESON A/S |