中国北方1：10万沙漠（地）分布数据集（2015年）

为了更准确了解我国北方现代沙漠（地）时空变化规律，从国家层面收集、整编和更新现代沙漠（地）数据集资料，在遥感和地理信息系统技术支持下，参考已有沙漠（地）调查监测成果，以Landsat系列影像数据为主要信息源，按同一解译标准、以人机交互方式通过比较提取不同类型沙漠（地）信息，形成中国北方地区自1970年代中期以来的沙漠（地）分布现状数据，并通过地面观测、调查进行精度验证和评价后建立数据库。

To accurately understand the spatio-temporal variation patterns of modern deserts and sandy lands in northern China, we collected, compiled, and updated dataset resources of modern deserts and sandy lands at the national level. Supported by remote sensing (RS) and geographic information system (GIS) technologies, and referring to existing survey and monitoring outcomes of deserts and sandy lands, we used Landsat series imagery as the primary data source, extracted information on various types of deserts and sandy lands through comparative analysis via human-computer interaction following a unified interpretation standard, and thereby produced the current distribution dataset of deserts and sandy lands in northern China since the mid-1970s. Finally, a dedicated database was established after accuracy validation and assessment through field observations and surveys.