Google Earth Engine ——LANDSAT/GLS1975（1972年-1983年）1975年全球土地调查(GLS)数据集

The Global Land Survey (GLS) 1975 is a global collection of imagery from the Landsat Multispectral Scanner (MSS). Most scenes were acquired by Landsat 1-3 in 1972-1983. A few gaps in the Landsat 1-3 data have been filled with scenes acquired by Landsat 4-5 during the years 1982-1987. These data contain 4 spectral bands: Green, Red, an NIR band, and a SWIR band. In the typical False-color presentation, the images appear red because the NIR band, displayed as red, highlights vegetation.

1975年全球土地调查(GLS)是一个来自于Landsat多光谱扫描仪(MSS)的全球图像集。大多数场景是由Landsat 1-3在1972-1983年获得的。大地卫星1-3号数据中的一些空白被大地卫星4-5号在1982-1987年获得的场景所填补。这些数据包含4个光谱带。绿色、红色、一个近红外波段和一个西南红外波段。在典型的假彩色演示中，图像显示为红色，因为显示为红色的近红外波段突出了植被。

Dataset Availability

1972-01-01T00:00:00Z - 1983-02-10T00:00:00

Dataset Provider

USGS

Collection Snippet

Copied

ee.ImageCollection("LANDSAT/GLS1975")

Resolution

60 meters

Bands Table

说明：There are no restrictions on Landsat data, and it can be used or redistributed as desired. However, a statement of the data source when citing, copying, or reprinting USGS Landsat data or images is recommended.

引用：

"GLS 1975 image courtesy of the U.S. Geological Survey"

代码：

var dataset = ee.ImageCollection('LANDSAT/GLS1975');
var falseColor = dataset.select(['30', '20', '10']);
var falseColorVis = {
  gamma: 1.6,
};
Map.setCenter(44.517, 25.998, 5);
Map.addLayer(falseColor, falseColorVis, 'False Color');

L5：

var dataset = ee.ImageCollection('LANDSAT/GLS1975_MOSAIC');
var falseColor = dataset.select(['30', '20', '10']);
var falseColorVis = {
  gamma: 1.6,
};
Map.setCenter(44.517, 25.998, 5);
Map.addLayer(falseColor, falseColorVis, 'False Color');

L7：

var dataset = ee.ImageCollection('LANDSAT/GLS2005_L7');
var trueColor321 = dataset.select(['30', '20', '10']);
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(trueColor321, {}, 'True Color (321)');