MODIS/Terra Atmospherically Corrected Surface Reflectance 5-Min L2 Swath 250m, 500m, 1km NRT

The MODIS/Terra Near Real Time (NRT) L2 Surface Reflectance, 5-Min Swath 250m, 500m, and 1km (MOD09) product is computed from the MODIS Level 1B land bands 1, 2, 3, 4, 5, 6, and 7 (centered at 648 nm, 858 nm, 470 nm, 555 nm, 1240 nm, 1640 nm, and 2130 nm, respectively). This product is an estimate of the surface spectral reflectance for each band as it would have been measured at ground level if there were no atmospheric scattering or absorption. The surface-reflectance product is the input for product generation for several land products: vegetation Indices (VIs), BRDF, thermal anomaly, snow/ice, and Fraction of Photosynthetically Active Radiation/Leaf Area Index (FPAR/LAI).

MODIS/Terra 近实时（NRT）L2 表面反射率数据产品（MOD09），该产品基于MODIS第1B级土地波段1至7（分别以648纳米、858纳米、470纳米、555纳米、1240纳米、1640纳米和2130纳米为中心波长）计算得出。该产品是对每个波段在无大气散射或吸收条件下地面水平测量光谱反射率的估算。表面反射率产品是生成多种土地产品的基础，包括植被指数（VIs）、双向反射分布函数（BRDF）、热异常、雪/冰以及光合有效辐射/叶面积指数（FPAR/LAI）的生成输入。