1981-2021年全球大陆夏季热浪频次数据集

基于Berkeley Earth观测数据网格化的日最高气温数据，对1981-2021年全球大陆区域的夏季热浪进行检测，进一步统计出夏季热浪的频次，得到41年的全球大陆夏季持续热频次数据集。其中热浪定义为连续3天及以上日最高气温超过基准期的90分位数。数据集的空间分辨率为1°×1°，时间分辨率为每年。

A 41-year global continental summer heatwave frequency dataset is established in this work, which is developed by detecting summer heatwaves over global continental regions during 1981–2021 using gridded daily maximum temperature data from Berkeley Earth observations, followed by quantifying the frequency of such heatwaves. Heatwaves are defined as periods of at least 3 consecutive days where daily maximum temperatures exceed the 90th percentile of the baseline period. The dataset has a spatial resolution of 1° × 1° and an annual temporal resolution.

搜集汇总

背景与挑战

背景概述

该数据集提供了1981-2021年全球大陆区域夏季热浪频次的年度统计数据，基于Berkeley Earth日最高气温观测数据，采用连续3天及以上日最高气温超过基准期90分位数的定义检测热浪。数据集以1°×1°空间分辨率的栅格格式（GeoTiff）存储，包含41个文件，总计10.16 MB，适用于气候变化和极端天气研究。