封面图片为 Landsat 8 TIRs 热红外传感器获取的中国新疆维吾尔自治区皮羌断层的热红外地表温度遥感影像。皮羌断层为北西向的走滑断层，大致与逆 冲断层垂直，延展达 70 km 以上。作为典型的大型走滑断裂，皮羌断层两侧具有明显的断裂活动差异，对于构造变形研究具有重要意义。受地形结构、地表覆盖类型以及太阳光照等因素影响，该区域内地表温度具有明显的空间差异，地表温度影像上的皮羌断层走势明显。相较于可见—红外—短波红外遥感，热红外遥感可昼夜观测地表热辐射信息，不受太阳光照限制。基于热红外遥感数据反演的地表温度与发射率以及它们的空间分布差异，可作为地表分类和目标识别的重要数据源。

The cover image is land surface temperature image around the Piqiang Fault in Xinjiang Uygur Autonomous Region, China, observed on 30 July 2013 by the Landsat 8 Thermal Infrared Sensor. Piqiang Fault appears as a sharp, NW-trending lineament that can be traced for more than 70 km, and it is roughly perpendicular to the thrust fault. As a typical large strike-slip fault, Piqiang Fault shows an obvious difference in fracture activity between the two sides of the fault itself, which is important for the investigation of tectonic deformation. Due to the influence of topographic structure, land cover type and solar illumination, the land surface temperature in this region had obvious spatial variation, and the trending of the Piqiang Fault in the land surface temperature image is obvious. Compared to the visible, near-infrared and shortwave infrared remote sensing image, the thermal infrared sensor can observe the land surface thermal radiation at both day and night, and is not restricted by the sunlight. Land surface temperature and emissivity product retrieved from thermal infrared image, as well as their spatial distribution variation, can be regarded as an important resource for the land classification and target identification.