0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c
English
Cogea srl
lfalco@cogea.it
apititto@cogea.it
2024-02-14T15:45:24.608745Z
ISO19115
2003/Cor.1:2006
EPSG:3035
ISO 19108 calendar
EMODnet Human Activities, Vessel Density Map
2019-03-21
2023-03-21
2019-03-11
EMODnet_HA_Vessel_Density_20191216
The Vessel Density maps in the EU are created since the 2019 by Cogea for the European Marine Observation and Data Network (EMODnet). The dataset is updated every year and is available for viewing and download on EMODnet web portal (Human Activities, https://emodnet.ec.europa.eu/en/human-activities). The maps are based on AIS data yearly purchased from Collecte Localisation Satellites (CLS) and ORBCOMM. The maps, GeoTIFF format, show shipping density in 1x1km cells of a grid covering all EU waters and some neighbouring areas. Density is expressed as hours per square kilometre per month. The following ship types are available:0 Other, 1 Fishing, 2 Service, 3 Dredging or underwater ops, 4 Sailing, 5 Pleasure Craft, 6 High speed craft, 7 Tug and towing, 8 Passenger, 9 Cargo, 10 Tanker, 11 Military and Law Enforcement, 12 Unknown and All ship types. Data are available by month of year. Yearly averages are also available.
Cogea srl
lfalco@cogea.it
apititto@cogea.it
Cogea srl
lfalco@cogea.it
Lovell Johns
william.adnams@lovelljohns.com
CLS
pdebusschere@cls.fr
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/vd.jpg
Marine Layer
Marine Waterway
Transport Area
INSPIRE feature concept dictionary (Version: Linked Data 1.0)
2014-09-14
merchant shipping
maritime navigation
maritime transport
GEMET (version 3.1, 2012-07-20)
2014-06-08
Transport networks
Geographical grid systems
GEMET - INSPIRE themes, version 1.0
2008-06-01
Re-use of content for commercial or non-commercial purposes is permitted free of charge, provided that the sources (both EMODnet - Human Activities, and CLS) are acknowledged. EMODnet - Human Activities accepts no responsibility or liability whatsoever for the re-use of content accessible on its website.
no limitation
1000
English
oceans
-87.706484
97.633027
14.961111
86.842727
2017-01-01
2018-12-31
TIFF
6.0
0
https://emodnet.ec.europa.eu/en/human-activities
WWW:LINK-1.0-http--link
EMODnet Human Activities
EMODnet Human Activities aims to facilitate access to existing marine data on activities carried out in EU waters, by building a single entry point for geographic information on human uses of the ocean.
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_all_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_all_2017-2022.zip
Monthly Totals - All vessel types - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_00_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_00_2017-2022.zip
Monthly Totals - Other vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_01_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_01_2017-2022.zip
Monthly Totals - Fishing vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_02_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_02_2017-2022.zip
Monthly Totals - Service vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_03_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_03_2017-2022.zip
Monthly Totals - Dredging or underwater ops - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_04_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_04_2017-2022.zip
Monthly Totals - Sailing - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_05_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_05_2017-2022.zip
Monthly Totals - Pleasure Craft - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_06_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_06_2017-2022.zip
Monthly Totals - High speed craft - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_07_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_07_2017-2022.zip
Monthly Totals - Tug and towing - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_08_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_08_2017-2022.zip
Monthly Totals - Passenger vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_09_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_09_2017-2022.zip
Monthly Totals - Cargo vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_10_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_10_2017-2022.zip
Monthly Totals - Tanker - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_11_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_11_2017-2022.zip
Monthly Totals - Military and Law Enforcement vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_12_2017-2022.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_12_2017-2022.zip
Monthly Totals - Unknown - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_all_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_all_2017-2022Avg.zip
Annual Averages - All vessel types - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_00_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_00_2017-2022Avg.zip
Annual Averages - Other vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_01_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_01_2017-2022Avg.zip
Annual Averages - Fishing vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_02_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_02_2017-2022Avg.zip
Annual Averages - Service vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_03_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_03_2017-2022Avg.zip
Annual Averages - Dredging or underwater ops - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_04_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_04_2017-2022Avg.zip
Annual Averages - Sailing - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_05_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_05_2017-2022Avg.zip
Annual Averages - Pleasure Craft - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_06_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_06_2017-2022Avg.zip
Annual Averages - High speed craft - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_07_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_07_2017-2022Avg.zip
Annual Averages - Tug and towing - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_08_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_08_2017-2022Avg.zip
Annual Averages - Passenger vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_09_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_09_2017-2022Avg.zip
Annual Averages - Cargo vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_10_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_10_2017-2022Avg.zip
Annual Averages - Tanker - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_11_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_11_2017-2022Avg.zip
Annual Averages - Military and Law Enforcement vessels - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_12_2017-2022Avg.zip
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_12_2017-2022Avg.zip
Annual Averages - Unknown - ZIP (GeoTIFF)
https://ows.emodnet-humanactivities.eu/geonetwork/srv/api/records/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c/attachments/EMODnet_HA_Vessel_Density_Grid_20190311.7z
WWW:DOWNLOAD-1.0-http--download
EMODnet_HA_Vessel_Density_Grid_20190311.7z
7-Zip (File Geodatabase)
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_all
Vessel Density Monthly totals - All types
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_00avg
Vessel Density Annual Averages - Other
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_00
Vessel Density Monthly totals - Other
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_01
Vessel Density Monthly totals - Fishing
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_02
Vessel Density Monthly totals - Service
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_03
Vessel Density Monthly totals - Dredging or underwater ops
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_04
Vessel Density Monthly totals - Sailing
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_05
Vessel Density Monthly totals - Pleasure Craft
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_06
Vessel Density Monthly totals - High speed craft
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_07
Vessel Density Monthly totals - Tug and towing
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_08
Vessel Density Monthly totals - Passenger
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_09
Vessel Density Monthly totals - Cargo
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_10
Vessel Density Monthly totals - Tanker
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_11
Vessel Density Monthly totals - Military and Law Enforcement
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_12
Vessel Density Monthly totals - Unknown
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_allavg
Vessel Density Annual Averages - All types
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_01avg
Vessel Density Annual Averages - Fishing
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_02avg
Vessel Density Annual Averages - Service
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_03avg
Vessel Density Annual Averages - Dredging or underwater ops
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_04avg
Vessel Density Annual Averages - Sailing
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_05avg
Vessel Density Annual Averages - Pleasure Craft
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_06avg
Vessel Density Annual Averages - High speed craft
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_07avg
Vessel Density Annual Averages - Tug and towing
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_08avg
Vessel Density Annual Averages - Passenger
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_09avg
Vessel Density Annual Averages - Cargo
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_10avg
Vessel Density Annual Averages - Tanker
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_11avg
Vessel Density Annual Averages - Military and Law Enforcement
https://ows.emodnet-humanactivities.eu/wms?
OGC:WMS-1.3.0-http-get-map
vesseldensity_12avg
Vessel Density Annual Averages - Unknown
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_all
Vessel Density Monthly totals - All types
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_00
Vessel Density Monthly totals - Other
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_01
Vessel Density Monthly totals - Fishing
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_02
Vessel Density Monthly totals - Service
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_03
Vessel Density Monthly totals - Dredging or underwater ops
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_04
Vessel Density Monthly totals - Sailing
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_05
Vessel Density Monthly totals - Pleasure Craft
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_06
Vessel Density Monthly totals - High speed craft
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_07
Vessel Density Monthly totals - Tug and towing
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_08
Vessel Density Monthly totals - Passenger
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_09
Vessel Density Monthly totals - Cargo
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_10
Vessel Density Monthly totals - Tanker
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_11
Vessel Density Monthly totals - Military and Law Enforcement
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_12
Vessel Density Monthly totals - Unknown
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_allavg
Vessel Density Annual Averages - All types
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_00avg
Vessel Density Annual Averages - Other
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_01avg
Vessel Density Annual Averages - Fishing
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_02avg
Vessel Density Annual Averages - Service
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_03avg
Vessel Density Annual Averages - Dredging or underwater ops
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_04avg
Vessel Density Annual Averages - Sailing
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_05avg
Vessel Density Annual Averages - Pleasure Craft
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_06avg
Vessel Density Annual Averages - High speed craft
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_07avg
Vessel Density Annual Averages - Tug and towing
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_08avg
Vessel Density Annual Averages - Passenger
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_09avg
Vessel Density Annual Averages - Cargo
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_10avg
Vessel Density Annual Averages - Tanker
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_11avg
Vessel Density Annual Averages - Military and Law Enforcement
https://ows.emodnet-humanactivities.eu/wcs?
OGC:WCS
emodnet:vesseldensity_12avg
Vessel Density Annual Averages - Unknown
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
true
Corrigendum to INSPIRE Metadata Regulation published in the Official Journal of the European Union, L 328, page 83
2009-12-15
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
true
AIS data are annualy purchased from two commercial providers, CLS and ORBCOMM. The data consists of messages sent by automatic tracking systems installed on board ships and received by terrestrial and satellite receivers alike. The acquired datasets currently cover a period from 2017 to 2021 for an area covering all EU waters. A partial pre-processing of the data is carried out by CLS: (i) The only AIS messages delivered are the ones relevant for assessing shipping activities (AIS messages 1, 2, 3, 18 and 19). (ii) The AIS data are down-sampled to 3 minutes (iii). Duplicate signals are removed. (iv) Wrong MMSI signals are removed. (v) Special characters and diacritics are removed. (vi) Signals with erroneous speed over ground (SOG) are removed (negative values or more than 80 knots). (vii) Signals with erroneous course over ground (COG) are removed (negative values or more than 360 degrees). (viii) A Kalman filter is applied to remove satellite noise. The Kalman filter is based on a correlated random walk fine-tuned for ship behaviour. The consistency of a new observation with the modelised position is checked compared to key performance indicators such as innovation, likelihood and speed. (ix) A footprint filter is applied to check for satellite AIS data consistency. All positions which are not compliant with the ship-satellite co-visibility are flagged as invalid. The AIS data are converted from their original format (NMEA) to CSV, and deliverd to Cogea split into 12 files, each corresponding to a month of the year. By running a series of commands from Linux shell, all remaining invalid characters are removed as well as unnecessary fields. The data are then imported into a PostgreSQL relational database (with the PostGIS extension), each month in a different table containing the following specialised data types: mmsi (numeric), locdate (date), loctime (time without time zone), lon (double precision), lat (double precision), aisshiptype (character varying). MMSI numbers are often associated to more than a ship type during a year. To cope with this issue, a unique MMSI/ship type register is created every year. In the register, MMSI with multiple ship types are associated the most recurring and known ship type by counting the number of record for each combination mmsi/ship type. The admissible ship types reported in the AIS messages are grouped into macrocategories: 0 Other, 1 Fishing, 2 Service, 3 Dredging or underwater ops, 4 Sailing, 5 Pleasure Craft, 6 High speed craft, 7 Tug and towing, 8 Passenger, 9 Cargo, 10 Tanker, 11 Military and Law Enforcement, 12 Unknown and All ship types. The subsequent steps consist of creating points representing ship positions from the AIS messages, then reconstructing ship routes (lines) from the points for every two consecutive positions of a ship, by using the MMSI number as a unique identifier of a ship. In addition, for each line the query calculates its length (in km) and its duration (in hours) and append them both as attributes to the line. If the distance between two consecutive positions of a ship is longer than 30 km or if the time interval is longer than 6 hours, no line is created. Both datasets (points and lines) are projected into the ETRS89/ETRS-LAEA coordinate reference system, used for statistical mapping at all scales, where true area representation is required (EPSG: 3035). Points and lines calculations are based on custom-made sql scripts developed by Cogea. The lines obtained are then intersected with a custom-made 1x1km grid polygon (21 million cells) created by Cogea, based on the EEA's national grids, extended to cover the whole area of interest (all EU sea basins) and imported in PostGIS. Because each line has length and duration as attributes, it is possible to calculate how much time each ship spent in a given cell over a month by intersecting line records with grid cell records. This is done through a custom-made sql script developed by Lovell Johns. Using the PostGIS Intersect tool, for each cell of the grid, the time value of each 'segment' in it is summed, thus obtaining the density value associated to that cell, stored in calculated PostGIS tables. Density is thus expressed in hours per square kilometre per month. The final step consists of creating and compressing, in QGIS and GDAL and from the PostGIS vessel density tables, the final raster datasets (GeoTIFF format). Annual average rasters by ship type are also finally calculated. For more details on vessel density calculations method and concepts see the technical report published at: https://emodnet.ec.europa.eu/en/reports. Comparared with the original method, starting from the 2021 (2020 data) the calculations of ship positions (points) and ship routes (lines) were sped up by moving them from ArcGIS to PostGIS.