2000-2024年中国逐年500米分辨率PET数据集
收藏资源简介:
1.本数据集提供了2000年至2024年逐年的潜在蒸散发(PET)数据,空间分辨率为500米。数据基于MODIS卫星遥感产品MOD16A2,该产品采用Penman-Monteith方程为核心算法,通过整合MODIS的植被指数、地表反照率以及来自全球再分析资料的大气驱动数据(如温度、湿度、辐射)进行计算。数据集覆盖全球陆表,时间序列完整,以年为单位聚合,便于进行长时间尺度的气候变化、水文循环及生态环境演变研究。 2.高校、研究所、企事业单位等科研单位。 3.数据经过严格的质控处理,剔除了原始MOD16A2产品中的低质量像元,确保了结果的可靠性。本数据集对于评估区域干湿状况、农业水资源规划、干旱监测以及全球变化研究具有重要的科学价值与应用潜力。
1. This dataset provides annual potential evapotranspiration (PET) data from 2000 to 2024, with a spatial resolution of 500 meters. Derived from the MODIS satellite remote sensing product MOD16A2, which uses the Penman-Monteith equation as its core algorithm, the data is calculated by integrating MODIS vegetation indices, surface albedo, and atmospheric driving data from global reanalysis datasets (such as temperature, humidity, and radiation). Covering global land surfaces, the dataset has a complete annual aggregated time series, facilitating long-timescale research on climate change, hydrological cycles, and ecological environment evolution. 2. This dataset is applicable to research institutions including universities, research institutes, enterprises and public institutions. 3. The data has undergone strict quality control processing, with low-quality pixels in the original MOD16A2 product removed to ensure the reliability of the results. This dataset has important scientific value and application potential for assessing regional dry-wet conditions, agricultural water resource planning, drought monitoring, and global change research.




