青藏高原河湖冰物候数据集 V1.0（2002-2018）

河湖冰物候对气候变化敏感，是指示气候变化的重要指示因子。308个Excel文件名称对应于湖泊编号。每个excel文件包含6个列，包含2002年7月至2018年6月对应湖泊的日冰覆盖率信息。每一列的属性分别为:日期、湖水覆盖率、湖水冰覆盖率、云覆盖率、湖水覆盖率和经过云处理后的湖面冰覆盖率。通常以0.1、0.9的冰覆盖面积比作为判别湖泊冰物候的依据。数据集包含的excel文件可以进一步获取四个湖冰物候参数:开始冻结(FUS),完全冻结(FUE)，开始融化(BUS),完全融化(BUE),和92个湖泊,可获取两个参数,FUS和BUE。

Lake and river ice phenology is sensitive to climate change and serves as a crucial indicator of climatic variations. A total of 308 Excel files are named after individual lake IDs. Each Excel file contains 6 columns, which store daily ice cover information for the corresponding lake from July 2002 to June 2018. The attributes of each column are as follows: date, water coverage, lake ice coverage, cloud coverage, water coverage, and cloud-processed lake surface ice coverage. An ice cover area ratio of 0.1 and 0.9 is typically used as the threshold for identifying lake ice phenological events. Four lake ice phenological parameters can be extracted from the dataset's Excel files: freeze-up start (FUS), full freeze-up (FUE), break-up start (BUS), and full break-up (BUE). For 92 lakes, however, only two parameters, FUS and BUE, can be obtained.

搜集汇总

背景与挑战

背景概述

青藏高原河湖冰物候数据集 V1.0（2002-2018）包含2002年7月至2018年6月青藏高原308个湖泊的日冰覆盖率信息，数据以Excel文件形式存储，每个文件包含6列数据，可用于研究湖泊冰物候参数如开始冻结、完全冻结、开始融化和完全融化等。数据集空间分辨率为米级，时间分辨率为日，数据大小为186.65 MB，共享方式为开放获取。