中国区域Landsat地表反射率产品

Landsat surface reflectance products over China

Landsat数据是记录着人类活动和自然变化最长时间序列的遥感数据集,Landsat系列卫星数据长时序地表反射率产品在森林、水资源、气候变化等领域长时序信息挖掘分析方面具有广泛的用途。本数据集采用基于6S辐射传输模型的大气校正方法,通过辐射定标、模型参数获取、大气校正等数据处理流程,生产了中国1980s–2019年的Landsat系列卫星遥感地表反射率产品,可为遥感用户和科研工作者提供即得即用的高质量地表反射率产品。最终结果以GeoTIFF格式保存,并附带相应的质量文件和元数据文件。

Landsat satellite remote sensing data of long-time series have been used to record human activities and natural changes for a long time.And the surface reflectance products of Landsat series data have be widely applied to the long-time series information mining and analysis in many fields,such as forest monitoring,water resource management,and climate change study.By using atmospheric correction methods based on the 6S radiative transfer model,we produced the high-quality surface reflectance products over China from the1980s to the year of 2019,which are ready to use(RTU)for remote sensing researchers and application users.The processing steps for the products include radiometric calibration,model input parameter acquisition and atmospheric correction,etc.The products are saved as a format of GeoTIFF with corresponding quality assessment files(QA)and metadata files.