MODIS/Terra Surface Reflectance Daily L2G Global 250 m SIN Grid NRT

The MODIS/Terra Surface Reflectance Daily L2G Global 250m SIN Grid, Near Real Time (NRT) like other Surface Reflectance products are 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, yielding a level-2 basis for several higher-order gridded level-2 (L2G) and level-3 products. This product, with short name MOD09GQ provides Bands 1 and 2 at a 250-meter resolution in a daily gridded L2G product in the Sinusoidal projection. Science Data Sets provided for this product include reflectance for Bands 1 and 2 a quality rating observation coverage and observation number. This product is meant to be used in conjunction with MOD09GA where important quality and viewing geometry information is stored.

MODIS/Terra 表面反射率每日 L2G 全球 250 米正弦网格，近实时（NRT）数据集，与其他表面反射率产品类似，是对地面水平无大气散射或吸收情况下表面光谱反射率的估计。低层数据经过大气气体和气溶胶的校正，为多个高级别网格化 L2G 和 L3 产品提供了第二级基础。该产品以简称为 MOD09GQ，提供每日网格化 L2G 产品中的第 1 和第 2 波段，分辨率为 250 米，采用正弦投影。为此产品提供的科学数据集包括第 1 和第 2 波段的反射率、质量评级、观测覆盖范围和观测次数。该产品旨在与 MOD09GA 结合使用，其中存储了重要的质量和观测几何信息。