• HELCOM Metadata catalogue
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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
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Bio-geographical regions

GEMET

  • noise pollution

Keywords
  • MADS

  • HOLAS3

  • Pressure layer

Use constraints
Other restrictions
Other constraints

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
  • Environment
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Begin date
2016-01-01 Unknown
End date
2021-12-31 Now
Unique resource identifier
EPSG:3035
Distribution format
  • ESRI Shapefile ( 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

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
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET
noise pollution
GEMET - INSPIRE themes, version 1.0
Bio-geographical regions

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Associated resources

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