2000年京津冀城市群500米级NDVI影像样例数据

NDVI，又名归一化植被指数，主要用于检测植被生长状态、植被覆盖度和消除部分辐射误差等。覆盖京津冀城市群的2000期的归一化植被指数（NDVI）数据集下载自地理空间数据云网站，基于MODIS遥感影像计算得到，空间分辨率为500m。数据已对云层等影响因素进行了预处理，并进行过空间校正，能够精确反映研究区的植被覆盖程度。研究时段自2000年到2015年，以五年作为时间间隔，能够反映植被长时间的时空变化规律。

NDVI, also known as the Normalized Difference Vegetation Index, is primarily used to detect vegetation growth status, estimate vegetation coverage, and mitigate certain radiation errors, among other applications. The 2000-phase Normalized Difference Vegetation Index (NDVI) dataset covering the Beijing-Tianjin-Hebei urban agglomeration was downloaded from the Geospatial Data Cloud website, and was calculated based on MODIS remote sensing imagery, with a spatial resolution of 500 meters. The data has been preprocessed to eliminate the influence of factors such as cloud cover, and has undergone spatial correction, which can accurately reflect the vegetation coverage of the study area. The study period spans from 2000 to 2015, with a five-year time interval, which can reflect the long-term spatio-temporal variation patterns of vegetation.