MODIS/Terra Land Surface Temperature/Emissivity 5-Min L2 Swath 1km NRT

The MODIS/Terra level-2 Land Surface Temperature and Emissivity (LST/E) Near Real Time (NRT) with Shortname MOD11_L2, incorporate 1 km pixels, which are produced daily at 5-minute increments using the generalized split-window algorithm. This algorithm is optimally used to separate ranges of atmospheric column water vapor and lower boundary air surface temperatures into tractable sub-ranges. The surface emissivities in bands 31 and 32 are estimated from land cover types. The data inputs include the MODIS L1B calibrated and geolocated radiances, geolocation, cloud mask, atmospheric profiles, land and snow cover. The MOD11_L2 data set comprises swath data obtained in 5-minute sensor collection periods, and includes the following Science Data Set (SDS) layers: - LST- Quality control assessment- Error estimates- Bands 31 and 32 emissivities- Zenith angle of the pixel view- Observation time- Geographic coordinates for every five scan lines and samples. Produced daily, MOD11_L2 is an unprojected level-2 product, which provides the input for the level-3 products.

MODIS/Terra级土地表面温度和发射率（LST/E）近实时（NRT）数据集，简称MOD11_L2，采用1公里像素分辨率，每日以5分钟间隔生成，基于广义分窗算法。此算法适用于将大气柱状水汽和下层边界空气表面温度范围划分为易于处理的子范围。第31和32波段表面的发射率根据地表覆盖类型进行估算。数据输入包括MODIS L1B校准和地理定位辐射亮度、地理定位、云掩膜、大气剖面、地表和积雪覆盖。MOD11_L2数据集包括在5分钟传感器采集周期内获取的扫描带数据，并包含以下科学数据集（SDS）层：- LST- 质量控制评估- 错误估计- 第31和32波段发射率- 像素视场天顶角- 观测时间- 每五个扫描线和样本的地理坐标。每日生产的MOD11_L2为未投影的第二级产品，为第三级产品提供输入。