Google Earth Engine ——MYD09Q1.006 Aqua 地表反射率 8-Day Global 250m提供了第1和第2波段的表面光谱反射率的估计，并对气体、气溶胶和瑞利散射等校正

The MYD09Q1 product provides an estimate of the surface spectral reflectance of bands 1 and 2 at 250m resolution and corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Along with the two reflectance bands, a quality layer is also included. For each pixel, a value is selected from all the acquisitions within the 8-day composite on the basis of high observation coverage, low view angle, the absence of clouds or cloud shadow, and aerosol loading.

Documentation:

• User's Guide
  
• Algorithm Theoretical Basis Document (ATBD)
  
• General Documentation
  

MYD09Q1产品以250米的分辨率提供了第1和第2波段的表面光谱反射率的估计，并对气体、气溶胶和瑞利散射等大气条件进行了校正。与两个反射带一起，还包括一个质量层。对于每个像素，根据高观测覆盖率、低视角、无云或云影以及气溶胶负荷，从8天合成的所有采集中选择一个值。

Dataset Availability

2002-07-04T00:00:00 - 2021-09-06T00:00:00

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Collection Snippet

ee.ImageCollection("MODIS/006/MYD09Q1")

使用说明：

Please visit LP DAAC 'Citing Our Data' page for information on citing LP DAAC datasets.

数据引用：

https://doi.org/10.5067/MODIS/MYD09Q1.006

Resolution

250 meters

Bands Table

代码：

1. var dataset = ee.ImageCollection('MODIS/006/MYD09Q1')
2.                   .filter(ee.Filter.date('2018-01-01', '2018-05-01'));
3. 
4. var falseColorVis = {
5. min: -100.0,
6. max: 6000.0,
7. bands: ['sur_refl_b02', 'sur_refl_b02', 'sur_refl_b01'],
8. };
9. Map.setCenter(6.746, 46.529, 2);
10. Map.addLayer(dataset, falseColorVis, 'False Color');