Input of impulsive anthropogenic sound HOLAS 3
Input of impulsive anthropogenic sound includes impulsive events from 2016-2021
• Seismic surveys (HELCOM-OSPAR Registry; national data call submissions as lines in the folder of data)
• Explosions (HELCOM-OSPAR Registry)
• Pile driving (HELCOM-OSPAR Registry)
• Airguns (HELCOM-OSPAR Registry)
For the different event types, numeric intensity value was used to represent the pressure as categorized in HELCOM-OSPAR Impulsive noise registry. All nationally reported seismic surveys were given intensity values “Very low” (0.25)
- Very low (0.25)
- Low (0.5)
- Medium (0.75)
- High (1)
The impact distance has not been taken into account due to the different nature of separate datasets used for the pressure layer. We acknowledge that e.g. pile driving and airguns may impact up to 20 km from the source event. The spread of the sound wave depends on the sound frequency, water salinity, temperature and density.
Simple
- Date (Creation)
- 2023-03-15
- Unique resource identifier
- https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/74f29924-ae6d-4e75-b8f1-56710043ac86
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GEMET - INSPIRE themes, version 1.0
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Bio-geographical regions
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GEMET
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noise pollution
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- Keywords
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MADS
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HOLAS3
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Pressure layer
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- Use constraints
- Other restrictions
- Other constraints
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Use constraints: Data can be used freely given that the source is cited (following creative commons license CC-BY). The source should be cited as: “HELCOM HOLAS 3 Dataset (2023)"
- Access constraints
- Other restrictions
- Other constraints
- Access constraints: No limitations on public access.
- Spatial representation type
- Grid
- Metadata language
- English
- Topic category
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- Environment
- Begin date
- 2016-01-01 Unknown
- End date
- 2021-12-31 Now
- Unique resource identifier
- EPSG:3035
- Distribution format
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ESRI Shapefile
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1.0
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ESRI Shapefile
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1.0
)
- OnLine resource
- Download Input of impulsive anthropogenic sound HOLAS 3 ( WWW:LINK-1.0-http--link )
- OnLine resource
- View Input of impulsive anthropogenic sound HOLAS 3 ( WWW:LINK-1.0-http--link )
- Hierarchy level
- Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
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Data source: HELCOM-OSPAR Impulsive noise register.
Data quality: The pressure is not coherent across the Baltic Sea, due to lacking reporting
Attribute information: Normalised Pressure value
Data converted directly to 1km grid cells
Data from HELCOM-OSPAR Database for impulsive sound and national data call (polygons, points) with sound values
categorized from very low, low, medium, high, and very high. Sum of all events calculated per 1x1 km grid cell. Normalized. Sum of events based on sound value codes. Values were normalized.
- File identifier
- 74f29924-ae6d-4e75-b8f1-56710043ac86 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-04-14T14:04:08