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1.MOD11A2数据介绍
MOD11A2 第 6 版产品在 1,200 x 1,200 公里的网格中以 1 公里 (km) 的空间分辨率提供平均 8 天的每像素地表温度和发射率 (LST&E)。 MOD11A2 中的每个像素值是在该 8 天内收集的所有相应 MOD11A1 LST 像素的简单平均值。 选择 8 天的合成周期是因为该周期是 Terra 和 Aqua 平台的精确地面轨道重复周期的两倍。 与白天和夜间地表温度带一起提供的是相关的质量控制评估、观测时间、视角天顶角和晴空覆盖率以及来自土地覆盖类型的 31 和 32 带发射率。(原文：The MOD11A2 Version 6 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 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.
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