MODIS/Terra Land Surface Temperature/Emissivity 8-Day L3 Global 1km SIN Grid V061

The Terra Moderate Resolution Imaging Spectroradiometer (MODIS) Land Surface Temperature/Emissivity 8-Day (MOD11A2) Version 6.1 product provides an average 8-day per-pixel Land Surface Temperature and Emissivity (LST&E) with a 1 kilometer (km) spatial resolution in a 1,200 by 1,200 km grid. Each pixel value in the MOD11A2 is a simple average of all the corresponding [MOD11A1](https://doi.org/10.5067/MODIS/MOD11A1.061) LST pixels collected within that 8-day period. The 8-day compositing period was chosen because twice that period is the exact ground track repeat period of the Terra and Aqua platforms. Provided along with the daytime and nighttime surface temperature bands are associated quality control assessments, observation times, view zenith angles, and clear-sky coverages along with bands 31 and 32 emissivities from land cover types. Known Issues * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Terra&as=61).搭载于Terra卫星的中等分辨率成像光谱辐射计（Moderate Resolution Imaging Spectroradiometer，简称MODIS）地表温度/发射率8天合成（MOD11A2）版本6.1产品，可提供每像素的8天平均地表温度与发射率（Land Surface Temperature and Emissivity，简称LST&E），空间分辨率为1千米（km），网格尺寸为1200×1200 km。MOD11A2中的每个像素值，为该8天周期内采集的所有对应[MOD11A1](https://doi.org/10.5067/MODIS/MOD11A1.061)地表温度像素的简单平均值。选择8天合成周期的原因在于，该周期的两倍恰好是Terra与Aqua卫星平台的精确地面轨道重复周期。随日间与夜间地表温度波段一并提供的参数包括相关质量控制评估结果、观测时刻、观测天顶角、晴空覆盖率，以及源自不同土地覆盖类型的31、32波段发射率。 已知问题 * 如需获取已知问题的完整信息，请参阅[MODIS/VIIRS陆地质量评估网站](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Terra&as=61)。