Fishing intensity SDN DMF 2013 v2

This dataset describes fishing intensity for SDN DMF mobile bottom contacting gear in 2013 based on VMS/Log book data processed by ICES Working Group on Spatial Fisheries Data (WGSFD).

ICES secretariat collected during 2017 relevant VMS and logbook data for 2009-2016 to produce, as a technical service to HELCOM, updated spatial data layers on fishing intensity/pressure. Improved data quality control checks were implemented. Submitted data across the HELCOM area have improved in quality compared to previous data 2009-2013 published in 2015. Standardized methods were used to produce the requested data layers. The code used to create the data products is available here: https://github.com/ices-eg/wg_WGSFD

For further technical information on the advice request, see http://www.ices.dk/sites/pub/Publication%20Reports/Advice/2017/Special_requests/helcom.2017.18.pdf

HELCOM secretariat did the following processing to the shapefile provided by ICES:
- Conversion to ETRS89LAEA coordinate system
- Added feature and attribute "Reported" to display unreported areas.

Dataset attribute information:

c-square: Unique reference of the c-square polygon

Year: Year of fishing activity

mid_lat: latitude coordinate of the centroid of c-square inWGS84 decimal degrees

mid_lon: longitude coordinate of the centroid of c-square inWGS84 decimal degrees

SurfaceSAR: Surface area ratio (Swept area, < 2 cm penetration depth of the gear components)

Subsurface: Subsurface area ratio (Swept area, subsurface =>2 cm penetration depth of the gear components)

totweight: Total Weight (kg)

totvalue: Total value (Euros)

Kw Fishing Hours: (Kw*h)

Fishing hours: (h)

Reported: Yes=Reported data. No= No reported data (area that does not contain effort/intensity value due to lack of reported data).

Please note that this dataset was updated (v2) in January 2019, see further details below in the lineage section.