Homogenised Monthly and Daily Temperature and Precipitation Time Series in China and Greece since 1960

Abstract

In this paper, we describe and analyze two datasets entitled “Homogenised monthly and daily temperature and precipitation time series in China during 1960–2021” and “Homogenised monthly and daily temperature and precipitation time series in Greece during 1960–2010”. These datasets provide the homogenised monthly and daily mean (TG), minimum (TN), and maximum (TX) temperature and precipitation (RR) records since 1960 at 366 stations in China and 56 stations in Greece. The datasets are available at the Science Data Bank repository and can be downloaded from https://doi.org/10.57760/sciencedb.01731 and https://doi.org/10.57760/sciencedb.01720. For China, the regional mean annual TG, TX, TN, and RR series during 1960–2021 showed significant warming or increasing trends of 0.27°C (10 yr)⁻¹, 0.22°C (10 yr)⁻¹, 0.35°C (10 yr)⁻¹, and 6.81 mm (10 yr)⁻¹, respectively. Most of the seasonal series revealed trends significant at the 0.05 level, except for the spring, summer, and autumn RR series. For Greece, there were increasing trends of 0.09°C (10 yr)⁻¹, 0.08°C (10 yr)⁻¹, and 0.11°C (10 yr)⁻¹ for the annual TG, TX, and TN series, respectively, while a decreasing trend of −23.35 mm (10 yr)⁻¹ was present for RR. The seasonal trends showed a significant warming rate for summer, but no significant changes were noted for spring (except for TN), autumn, and winter. For RR, only the winter time series displayed a statistically significant and robust trend [−15.82 mm (10 yr)⁻¹]. The final homogenised temperature and precipitation time series for both China and Greece provide a better representation of the large-scale pattern of climate change over the past decades and provide a quality information source for climatological analyses.

摘要

本文介绍两套数据集 “1960–2021中国逐月和逐日均一化气温和降水时间序列” 和 “1960–2010年希腊逐月和逐日气温和降水时间序列”, 分别包括 1960 年以来中国 366 站和希腊 56 站的均一化逐月/逐日平均气温 (TG)、 最低气温 (TN)、 最高气温 (TX) 及降水 (RR) 序列. 这是两国首次合作运用两种方法对气候资料进行双重均一化分析. 大部分 (54%–91%) 站点气温序列和小部分 (14%–18%) 站点降水序列得以改善. 根据新数据, 1960–2021 年中国区域年平均 TG、 TX、 TN 和 RR 序列呈现明显增势, 分别为 0.27°C/10a、 0.22°C/10a、 0.35°C/10a 和 6.81mm/10a; 除春、 夏、 秋季 RR 外, 各季气温和降水趋势显著 (α=0.05). 1960–2010 年希腊区域年平均 TG、 TX 和 TN 序列分别呈 0.09°C/10a、 0.08°C/10a 和 0.11°C/10a 的升势, RR 呈 −23.35 mm/10a 的降势; 夏季升温显著, 春季 TN 也显著上升, 但其他季节气温序列无显著趋势; 冬季降水显著减少 (−15.82 mm/10a), 其他季节降水无显著趋势. 均一化的气候序列集更好地反映了两国的区域气候变化及其分布格局, 为开展区域气候变化分析及其比较研究提供了必要的数据基础. 数据下载地址": https://doi.org/10.57760/sciencedb.01731; https://doi.org/10.57760/sciencedb.01720