中国1:100万积雪稳定性分类数据(1980-2020年)

本数据集以1中国AVHRR逐日无云5km积雪面积产品数据集(1980-2020年)为基础，引入连续积雪天数，完成基于稳定性的中国积雪类型划分。将我国积雪主要分为了强稳定积雪、次稳定积雪、周期性不稳定积雪、非周期稳健不稳定积雪、非周期波动不稳定积雪。数据包含一幅图件和一个栅格文件。采用完全开放共享。

This dataset is developed based on the daily cloud-free 5 km snow cover area product dataset derived from AVHRR for China (1980–2020). By incorporating consecutive snow cover days, we conducted a stability-based classification of snow cover types across China. The snow cover in China is primarily categorized into five types: strongly stable snow cover, sub-stable snow cover, periodic unstable snow cover, aperiodic robustly unstable snow cover, and aperiodic fluctuating unstable snow cover. The dataset includes one cartographic map and one raster file, and is fully openly accessible.

搜集汇总

背景与挑战

背景概述

该数据集是基于1980年至2020年中国AVHRR每日无云5km积雪产品，通过统计连续积雪天数等指标，对中国积雪稳定性进行分类，包括强稳定、亚稳定、周期性不稳定、非周期性稳定不稳定和非周期性波动不稳定等类型。数据空间分辨率为5km，覆盖中国陆地范围，采用完全开放共享，适用于积雪研究和气候变化分析。