Effort de pêche, mesuré en heures d'activité de pêche inférée. Chaque ressource correspond à l'effort pour un état de signalisation et un jour donnés, avec une bande pour l'activité de pêche de chaque type d'engin.
Consultez des exemples de scripts Earth Engine.
Consultez également le site principal de GFW pour obtenir des informations sur le programme, des cartes de visualisation entièrement interactives et des données sur les impacts.
Bracelets
Taille des pixels 1113,2 mètres
Bandes de fréquences
Nom
Unités
Taille des pixels
Description
drifting_longlines
h/km^2
mètres
Heures de pêche par kilomètre carré avec des palangres dérivantes.
fixed_gear
h/km^2
mètres
Heures de pêche par kilomètre carré avec des engins fixes.
other_fishing
h/km^2
mètres
Heures de pêche par km² avec d'autres types d'engins.
purse_seines
h/km^2
mètres
Heures de pêche par kilomètre carré avec des sennes coulissantes.
squid_jigger
h/km^2
mètres
Heures de pêche par km² avec des jigs à calamars.
trawlers
h/km^2
mètres
Heures de pêche par kilomètre carré avec des chalutiers.
Propriétés des images
Propriétés de l'image
Nom
Type
Description
country
STRING
Code pays ISO3 de l'État du pavillon du navire. Pour tous les pays, utilisez "WLD".
Conditions d'utilisation
Conditions d'utilisation
Ce contenu est concédé sous licence internationale Creative Commons Attribution-ShareAlike 4.0. (CC-BY-SA)
Citations
Citations :
Global Fishing Watch, "Tracking the Global Footprint of Fisheries". Science 361.6378 (2018).
Effort de pêche, mesuré en heures d'activité de pêche inférée. Chaque asset correspond à l'effort pour un jour et un État du pavillon donnés, avec une bande pour l'activité de pêche de chaque type d'engin. Consultez des exemples de scripts Earth Engine. Consultez également le site principal de GFW pour obtenir des informations sur le programme, des cartes de visualisation entièrement interactives, …
[null,null,[],[[["\u003cp\u003eThe Global Fishing Watch dataset provides data on fishing effort, measured in hours of inferred fishing activity, from 2012 to 2017.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes information on various fishing gear types, including drifting longlines, fixed gear, purse seines, squid jiggers, trawlers, and other fishing methods.\u003c/p\u003e\n"],["\u003cp\u003eEach data asset represents the fishing effort for a specific flag state and day, with bands indicating the activity level for each gear type.\u003c/p\u003e\n"],["\u003cp\u003eThe data is available at a resolution of 1113.2 meters and is licensed under a Creative Commons Attribution-ShareAlike 4.0 International license (CC-BY-SA).\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore the data and access sample scripts on the Global Fishing Watch website and through Google Earth Engine.\u003c/p\u003e\n"]]],["The Global Fishing Watch dataset, available from 2012 to 2017, provides daily fishing effort data, measured in hours, from various gear types. Data, accessible via `ee.ImageCollection(\"GFW/GFF/V1/fishing_hours\")`, is segmented by flag state and gear type, with bands including drifting longlines, fixed gear, trawlers, and more, with units in hours per square kilometer. Each country can be called using its ISO3 code, or use \"WLD\" for all. The dataset is accessible via Earth Engine and licensed under CC-BY-SA 4.0.\n"],null,["# GFW (Global Fishing Watch) Daily Fishing Hours\n\nDataset Availability\n: 2012-01-01T00:00:00Z--2017-01-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [Global Fishing Watch](https://globalfishingwatch.org/)\n\nCadence\n: 1 Day\n\nTags\n:\n[fishing](/earth-engine/datasets/tags/fishing) [gfw](/earth-engine/datasets/tags/gfw) [marine](/earth-engine/datasets/tags/marine) [monthly](/earth-engine/datasets/tags/monthly) [ocean](/earth-engine/datasets/tags/ocean) [oceans](/earth-engine/datasets/tags/oceans) \n\n#### Description\n\nFishing effort, measured in hours of inferred fishing activity. Each asset\nis the effort for a given flag state and day, with one band for the\nfishing activity of each gear type.\n\nSee [sample Earth Engine\nscripts](https://globalfishingwatch.org/research/global-footprint-of-fisheries/).\nAlso see [the main GFW site](https://GlobalFishingWatch.org) for program\ninformation, fully interactive visualization maps, and impacts.\n\n### Bands\n\n\n**Pixel Size**\n\n1113.2 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|----------------------|---------|------------|------------------------------------------------------|\n| `drifting_longlines` | h/km\\^2 | meters | Hours per sq. km of fishing with drifting longlines. |\n| `fixed_gear` | h/km\\^2 | meters | Hours per sq. km of fishing with fixed gear. |\n| `other_fishing` | h/km\\^2 | meters | Hours per sq. km of fishing with other gear types. |\n| `purse_seines` | h/km\\^2 | meters | Hours per sq. km of fishing with purse seines. |\n| `squid_jigger` | h/km\\^2 | meters | Hours per sq. km of fishing with squid jiggers. |\n| `trawlers` | h/km\\^2 | meters | Hours per sq. km of fishing with trawlers. |\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|---------|--------|---------------------------------------------------------------------------|\n| country | STRING | ISO3 country code of the vessel flag state. For all countries, use \"WLD\". |\n\n### Terms of Use\n\n**Terms of Use**\n\nThis work is licensed under a Creative Commons Attribution-ShareAlike 4.0\nInternational license. (CC-BY-SA)\n\n### Citations\n\nCitations:\n\n- Global Fishing Watch, \"Tracking the Global Footprint of Fisheries.\" Science 361.6378 (2018).\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('GFW/GFF/V1/fishing_hours')\n .filter(ee.Filter.date('2016-12-01', '2017-01-01'));\nvar trawlers = dataset.select('trawlers');\nvar trawlersVis = {\n min: 0.0,\n max: 5.0,\n};\nMap.setCenter(16.201, 36.316, 7);\nMap.addLayer(trawlers.max(), trawlersVis, 'Trawlers');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/GFW/GFW_GFF_V1_fishing_hours) \n[GFW (Global Fishing Watch) Daily Fishing Hours](/earth-engine/datasets/catalog/GFW_GFF_V1_fishing_hours) \nFishing effort, measured in hours of inferred fishing activity. Each asset is the effort for a given flag state and day, with one band for the fishing activity of each gear type. See sample Earth Engine scripts. Also see the main GFW site for program information, fully interactive visualization maps, ... \nGFW/GFF/V1/fishing_hours, fishing,gfw,marine,monthly,ocean,oceans \n2012-01-01T00:00:00Z/2017-01-01T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://globalfishingwatch.org/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/GFW_GFF_V1_fishing_hours)"]]
