1901-2016年北半球年平均气温空间分布和时间变化趋势数据

为了了解北半球气温变化的时空变化特征，该研究用 CRU （Climatic Research Unit）和 16 个
CMIP5 模式集体平均值计算了1850-2005年平均气温的空间分布以及北半球116年（1901-2016）年平均气温的变化特征，同时分析了北半球冻土区的年平均气温变化特征。年平均气温随着纬度的升高而降低，变化范围从大于 30 °C 到小于-25 °C。在相同纬度地区，高海拔地区（比如青藏高原、蒙古高原和西西伯利亚山区）的年平均气温凸显低温的趋势。

To investigate the spatiotemporal characteristics of temperature changes over the Northern Hemisphere, this study employed the CRU (Climatic Research Unit) dataset and the ensemble mean of 16 CMIP5 models to calculate the spatial distribution of annual mean temperatures during 1850–2005, as well as the temporal variation characteristics of annual mean temperatures over the Northern Hemisphere across the 116-year period from 1901 to 2016. Meanwhile, it also analyzed the temporal variation characteristics of annual mean temperatures in permafrost regions over the Northern Hemisphere. Annual mean temperatures decrease with increasing latitude, ranging from over 30 °C in low-latitude regions to below -25 °C in high-latitude regions. At equivalent latitudes, high-altitude areas such as the Tibetan Plateau, Mongolian Plateau and West Siberian Mountains exhibit significantly lower annual mean temperatures.

搜集汇总

背景与挑战

背景概述

该数据集提供了1901-2016年北半球年平均气温的空间分布和时间变化趋势数据，基于CRU和CMIP5模式计算，涵盖116年的气温变化分析，特别关注冻土区特征。数据显示年平均气温随纬度升高而降低，高海拔地区如青藏高原呈现低温趋势。数据集以xls、tif、nc格式存储，总容量172.5 MB，包含7个文件，属于再分析产品。