The selected data set is described below with metadata. Access to the data set itself can be requested via the SeaDataNet portal that gives an overview and access to marine and ocean data sets acquired and managed by European organisations. Go to: https://www.seadatanet.org
Details
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| Data set name | BGKK8504 |
| Discipline | |
| Parameter groups | |
| Discovery parameter | |
| GEMET-INSPIRE themes | Oceanographic geographical features |
| Abstract | The Kolokita’85 cruise was performed as a pipeline survey for Burgas Refinery by the IO-BAS onboard MV “V. Kolarov” from 17 to 30 June, 1985. The survey area is a narrow about 3,500 m zone crossing the shelf in W-E direction. The belt starts in front of Cape Kolokita and covers water depths from 25 m to about 300 m. The dataset consists of 10 lines with total lenght of about 285 km of shallow seismic and side-scan sonar observations performed simultaneously. Three of the lines (lines 3, 6 and 10) run within the entire polygon, others terminate on the half distance in water depth of about 50-60 m. Shallow seismic survey was carried out by “sparker” as sound source and 7 m length streamer with a group of 25 couples of hydrophones connected in parallel. The sparker operated with energy of 0.9 KJ and a source with 45 electrodes. The reflected signals were recorded on a wet-paper graphic recorder type “FAK” within a frequency range of 300 Hz to 1,100 Hz with a central frequency of about 750 Hz. The recorded length was 0.5 sec with but the penetration is almost zero on all lines up to water depts of about 70-90 m because of massive spreading of Holocene gas charged sediments type “Roquefort” in this area. An average penetration of about 0.2 sec bellow seabed with a vertical resolution of about one meter is recorded on three long running lines, which are available as scanned images. Side-scan observations were performed by “Relief – 500” home made system operating with 100 kHz in a range of 2 by 200 m The sonograms are available as paper rolls and are combined in a mosaic. Position fixing was undertaken by BRAS radio-navigation system, with an accuracy from 25 m near the shore to 50 m at the shelf break. The sparker records are available on paper. |
| Data format | |
| Data set creation date | 20120625 |
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| Map | |
| GML id | mc01 |
| GML objects | | Name | Description |
|---|
| BGKK8504 | BGKK8504 navigation |
|
| Datum | World Geodetic System 84 |
| Measuring area type | curve |
| Sea regions | |
| Location qualification | Both (Landward + beyond the 12 NM boundary) |
| MSFD areas | Black Sea |
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| Start date | 19850617 |
| Start time | 08:00:00 |
| End date | 19850630 |
| End time | 08:00:00 |
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| Instrument/gear category | |
| Vertical resolution | 4 |
| Vertical resolution | Milliseconds |
| Platform type | |
| Cruise name | Kolokita85 |
| Alternative cruise name | BGKK |
| Cruise start date | 19850617 |
| Station name | 1985-IO-BAS-s-BGKK8504 |
| Alternative station name | BGKK8504 |
| Station start date | 19850617 |
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| Data originator | Bulgarian National Oceanographic Data Centre , Institute of Oceanology |
| Data custodian | Bulgarian National Oceanographic Data Centre , Institute of Oceanology |
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| Data Distributor | Bulgarian National Oceanographic Data Centre , Institute of Oceanology |
| Database reference | mid resolution Preview of file (JPEG
SNAP
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| Access/ordering of data | web data access with registration |
| Access restriction | |
| Additional services | |
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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 |
|
| 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 | 1297084 |
| Version | 0 |
| CDI-record initial import date | 2012-06-27 07:30:16.777 |
| CDI-record last update | 2012-06-27 07:30:16.777 |
| Point of contact | Bulgarian National Oceanographic Data Centre , Institute of Oceanology |