Google Earth Engine ——Landsat 5 TM_TOA DN值缩放的、校准的传感器辐射度数据集

Landsat 5 TM Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.

Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not meet the Tier 1 specifications due to significant cloud cover, insufficient ground control, and other factors. Users interested in Tier 2 scenes can analyze the RMSE and other properties to determine the suitability for use in individual applications and studies. See more information in the USGS docs.

For more information, see USGS Landsat 5 Page

Landsat 5 TM Collection 1 Tier 2 DN值，代表缩放的、校准的传感器辐射度。

在处理过程中不符合第1级标准的场景被分配到第2级。这包括系统地形（L1GT）和系统（L1GS）处理的场景，以及任何L1TP场景，这些场景由于严重的云层覆盖、地面控制不足和其他因素而不符合第1级规格。对第2级场景感兴趣的用户可以分析RMSE和其他属性，以确定是否适合用于个人应用和研究。参见USGS文档中的更多信息。

更多信息，请参见USGS Landsat 5页面

Bands Table

使用说明：

Landsat datasets are federally created data and therefore reside in the public domain and may be used, transferred, or reproduced without copyright restriction.

Acknowledgement or credit of the USGS as data source should be provided by including a line of text citation such as the example shown below.

(Product, Image, Photograph, or Dataset Name) courtesy of the U.S. Geological Survey

Example: Landsat-7 image courtesy of the U.S. Geological Survey

See the USGS Visual Identity System Guidance for further details on proper citation and acknowledgement of USGS products.

Landsat数据集是联邦创建的数据，因此属于公共领域，可以在没有版权限制的情况下使用、转让或复制。

对美国地质调查局作为数据来源的确认或信用，应通过包括一行文字引用来提供，如下面的例子。

(产品、图像、照片或数据集名称）由美国地质调查局提供。

例子。Landsat-7图像由美国地质调查局提供

请参阅美国地质调查局视觉识别系统指南，了解有关美国地质调查局产品的正确引用和鸣谢的进一步细节。

代码：

var dataset = ee.ImageCollection('LANDSAT/LT05/C01/T1_ANNUAL_RAW')
                  .filterDate('2011-01-01', '2011-12-31');
var dataset = ee.ImageCollection('LANDSAT/LT05/C01/T1_ANNUAL_RAW');
var visParams = {
  min: 0,
  max: 255,
  gamma: 1.2,
  bands: ['B3', 'B2', 'B1'],
};
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(dataset, visParams, 'LANDSAT/LT05/C01/T1_ANNUAL_RAW');

var dataset = ee.ImageCollection('LANDSAT/LT05/C01/T1_8DAY_RAW')
                  .filterDate('2011-01-01', '2011-12-31');
var dataset = ee.ImageCollection('LANDSAT/LT05/C01/T1_8DAY_RAW');
var visParams = {
  min: 0,
  max: 255,
  gamma: 1.2,
  bands: ['B3', 'B2', 'B1'],
};
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(dataset, visParams, 'LANDSAT/LT05/C01/T1_8DAY_RAW');

var dataset = ee.ImageCollection('LANDSAT/LT05/C01/T1_32DAY_RAW')
                  .filterDate('2011-01-01', '2011-12-31');
var dataset = ee.ImageCollection('LANDSAT/LT05/C01/T1_32DAY_RAW');
var visParams = {
  min: 0,
  max: 255,
  gamma: 1.2,
  bands: ['B3', 'B2', 'B1'],
};
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(dataset, visParams, 'LANDSAT/LT05/C01/T1_32DAY_RAW');