{"vid":"22775","uid":"0","title":"AIS Shipping Traffic - Average weekly density of port service craft 2012 - 2017 (time aware)","log":"Updated by FeedsNodeProcessor","status":"1","comment":"0","promote":"0","sticky":"0","ds_switch":"","nid":"14585","type":"nmpilayer","language":"und","created":"1469630820","changed":"1639052027","tnid":"0","translate":"0","revision_timestamp":"1639052027","revision_uid":"0","body":{"und":[{"value":"
Automatic Identification System (AIS) is a maritime navigation safety communications system adopted by the International Maritime Organization (IMO) to provide vessel information, primarily for the purposes of maritime safety. AIS data are collected by various organisations and can be analysed to provide a source of spatial information about vessel movements within the geographical limits of the system. This layer shows the average weekly shipping density, of port service craft, for northern UK at 2km grid resolution, featuring multiple years for NMPi's time-aware functionality.
\r\n\r\nAIS datasets were sampled from the first seven days of each month, commencing with January, at monthly intervals. The total value for all 12 weeks was divided by 12 to determine the weekly average, therefore decimal values may occur for certain cells. The weekly average was also multiplied by 52 to provide the estimated annual average.
\r\n","summary":"","format":"filtered_html","safe_value":"Automatic Identification System (AIS) is a maritime navigation safety communications system adopted by the International Maritime Organization (IMO) to provide vessel information, primarily for\u00a0the purposes of maritime safety. AIS data are collected by various organisations and can be analysed to provide a source of spatial information about vessel movements within the geographical limits of the system. This layer shows the average weekly shipping density, of port service craft, for northern UK at 2km grid resolution, featuring multiple years for NMPi's time-aware functionality.
\nAIS datasets were sampled from the first seven days of each month, commencing with January, at monthly intervals. The total value for all 12 weeks was divided by 12 to determine the weekly average, therefore decimal values may occur for certain cells. The weekly average was also multiplied by 52 to provide the estimated annual average.
\n","safe_summary":""}]},"field_nmp_geos_name":{"und":[{"value":"nmp:AIS_weekly_vessel_density_port_service_craft","format":"full_html","safe_value":"nmp:AIS_weekly_vessel_density_port_service_craft"}]},"field_keyword":[],"field_nmp_dataset_id":{"und":[{"value":"1340","format":"full_html","safe_value":"1340"}]},"field_marine_plan_atlas_pages":[],"field_marine_atlas_chapter":[],"field_nmpi_layer_icon":{"und":[{"fid":"57","uid":"2","filename":"nmpi_icon.png","uri":"public://default_images/nmpi_icon_1.png","filemime":"image/png","filesize":"15709","status":"1","timestamp":"1444339655","type":"image","field_tags":[],"field_file_image_alt_text":{"und":[{"value":"Marine Scotland Information NMPi icon","format":null,"safe_value":"Marine Scotland Information NMPi icon"}]},"field_file_image_title_text":{"und":[{"value":"NMPI icon 2 - Copyright \u00a9 Marine Scotland","format":null,"safe_value":"NMPI icon 2 - Copyright \u00a9 Marine Scotland"}]},"rdf_mapping":[],"title":"NMPI icon 2 - Copyright \u00a9 Marine Scotland","alt":"Marine Scotland Information NMPi icon","metadata":{"height":205,"width":205},"height":"205","width":"205"}]},"field_map_type":{"und":[{"tid":"619"}]},"field_status":{"und":[{"value":"Active","format":null,"safe_value":"Active"}]},"field_ds_id":{"und":[{"value":"FishDAC_1778","format":null,"safe_value":"FishDAC_1778"}]},"field_gis_data_type":{"und":[{"tid":"749"}]},"field_time_aware":{"und":[{"tid":"744"}]},"field_nmpi_layer_id_attribute":[],"field_date_of_data":{"und":[{"value":"2012-01-01 00:00:00","value2":"2017-12-31 00:00:00","timezone":"Europe/London","timezone_db":"Europe/London","date_type":"datetime"}]},"field_date_uploaded_or_last_upda":{"und":[{"value":"2020-10-13 00:00:00","timezone":"Europe/London","timezone_db":"Europe/London","date_type":"datetime"}]},"field_download":{"und":[{"value":"0"}]},"field_download_on":{"und":[{"value":"1"}]},"field_mdc_id":{"und":[{"value":"1788"}]},"field_ssdi_last_update":[],"field_data_owner":{"und":[{"tid":"1610"}]},"field_data_contact":{"und":[{"value":"Marine Management Organisation (MMO)","format":null,"safe_value":"Marine Management Organisation (MMO)"}]},"field_data_edits_required":{"und":[{"value":"1"}]},"field_data_edit_date":{"und":[{"value":"2016-07-26 00:00:00","timezone":"Europe/London","timezone_db":"Europe/London","date_type":"datetime"}]},"field_edit_description":{"und":[{"value":"The field names in 2012 dataset were modified to match those in 2013 and later. A field \"year\" was added to each annual dataset. If necessary, datasets were transformed from ETRS89 to WGS84. The datasets were then merged and then clipped within the bounding box: max x = 15W max y = 64N, min x = 3W min y -54N
\r\n","format":"filtered_html","safe_value":"The field names in 2012 dataset were modified to match those in 2013 and later. A field \"year\" was added to each annual dataset. If necessary, datasets were transformed from ETRS89 to WGS84. The datasets were then merged and then clipped within the bounding box: max x = 15W max y = 64N, min x = 3W min y -54N
\n"}]},"field_datastore_link":{"und":[{"value":"Q:\\users\\GISTeam\\Datastore\\FishDAC_1778"}]},"field_mdc_link":{"und":[{"value":"http://s0413a:9997/RecordViewer.aspx?MetadataRecordID=1788"}]},"field_tags":[],"field_nmp_style":[],"field_is_time_aware":{"und":[{"value":"1"}]},"field_copyright":{"und":[{"tid":"783"}]},"field_usage_licence":{"und":[{"tid":"784"}]},"field_external_wms_address":[],"field_update_frequency":{"und":[{"tid":"755"}]},"field_ssdi_record_required":{"und":[{"value":"0"}]},"field_hide_wms":{"und":[{"value":"0"}]},"field_metadata_link":[],"field_datasource_link":[],"field_usage_limitations":[],"rdf_mapping":{"rdftype":["sioc:Item","foaf:Document"],"title":{"predicates":["dc:title"]},"created":{"predicates":["dc:date","dc:created"],"datatype":"xsd:dateTime","callback":"date_iso8601"},"changed":{"predicates":["dc:modified"],"datatype":"xsd:dateTime","callback":"date_iso8601"},"body":{"predicates":["content:encoded"],"type":"property"},"uid":{"predicates":["sioc:has_creator"],"type":"rel"},"name":{"predicates":["foaf:name"]},"comment_count":{"predicates":["sioc:num_replies"],"datatype":"xsd:integer"},"last_activity":{"predicates":["sioc:last_activity_date"],"datatype":"xsd:dateTime","callback":"date_iso8601"}},"path":"https://marine.gov.scot/maps/1340","name":"","picture":"0","data":null}