Google Earth Engine ——逐小时捕鱼强度GFW/GFF/V1/fishing

Google Earth Engine ——逐小时捕鱼强度GFW/GFF/V1/fishing_hours数据集

2022-04-27 129

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简介： Google Earth Engine ——逐小时捕鱼强度GFW/GFF/V1/fishing_hours数据集

Fishing 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, and impacts.

捕捞强度，以推断的捕捞活动小时数衡量。每个资产是一个给定的旗帜状态和一天的努力，每个齿轮类型的捕捞活动有一个带子。

参见地球引擎脚本样本。也可参见GFW的主网站，了解项目信息、完全互动的可视化地图和影响。

Dataset Availability

2012-01-01T00:00:00 - 2017-01-01T00:00:00

Dataset Provider

Global Fishing Watch

Collection Snippet

ee.ImageCollection("GFW/GFF/V1/fishing_hours")

Resolution

0.01 degrees

Bands Table

Name	Description	Units
drifting_longlines	Hours per sq. km of fishing with drifting longlines.	hours/sq. km
fixed_gear	Hours per sq. km of fishing with fixed gear.	hours/sq. km
other_fishing	Hours per sq. km of fishing with other gear types.	hours/sq. km
purse_seines	Hours per sq. km of fishing with purse seines.	hours/sq. km
squid_jigger	Hours per sq. km of fishing with squid jiggers.	hours/sq. km
trawlers	Hours per sq. km of fishing with trawlers.	hours/sq. km

影像属性：

Name	Type	Description
country	String	ISO3 country code of the vessel flag state. For all countries, use “WLD”.

var dataset = ee.ImageCollection('GFW/GFF/V1/fishing_hours')
                  .filter(ee.Filter.date('2016-12-01', '2017-01-01'));
var trawlers = dataset.select('trawlers');
var trawlersVis = {
  min: 0.0,
  max: 5.0,
};
Map.setCenter(16.201, 36.316, 7);
Map.addLayer(trawlers.max(), trawlersVis, 'Trawlers');