Google Earth Engine ——MODIS表面反射率产品提供了在没有大气散射或吸收的情况下在地面测量的表面光谱反射率的估计，250米的分辨率提供波段1和2数据集

The MODIS Surface Reflectance products provide an estimate of the surface spectral reflectance as it would be measured at ground level in the absence of atmospheric scattering or absorption. Low-level data are corrected for atmospheric gases and aerosols. MOD09GQ version 6 provides bands 1 and 2 at a 250m resolution in a daily gridded L2G product in the Sinusoidal projection, including a QC and five observation layers. This product is meant to be used in conjunction with the MOD09GA where important quality and viewing geometry information is stored.

Documentation:

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

MODIS表面反射率产品提供了在没有大气散射或吸收的情况下在地面测量的表面光谱反射率的估计。低层数据经过了大气气体和气溶胶的校正。MOD09GQ第6版在正弦波投影的每日网格化L2G产品中，以250米的分辨率提供波段1和2，包括一个质量控制层和五个观测层。该产品旨在与MOD09GA一起使用，其中存储了重要的质量和观测几何信息。

文件。

用户指南

算法理论基础文件(ATBD)

一般文件

Dataset Availability

2000-02-24T00:00:00 - 2021-09-19T00:00:00

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Collection Snippet

ee.ImageCollection("MODIS/006/MOD09GQ")

Resolution

250 meters

Bands Table

  使用说明：MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

数据引用：

代码：

var dataset = ee.ImageCollection('MODIS/006/MOD09GQ')
                  .filter(ee.Filter.date('2018-01-01', '2018-05-01'));
var falseColorVis = {
  min: -100.0,
  max: 8000.0,
  bands: ['sur_refl_b02', 'sur_refl_b02', 'sur_refl_b01'],
};
Map.setCenter(6.746, 46.529, 2);
Map.addLayer(dataset, falseColorVis, 'False Color');