青藏高原过去两千年百年尺度气候变化的时空格局

数据主要包括青藏高原不同区域基于不同载体重建的过去2000年高分辨率的温度、降水代用序列以及温度集成结果。通过区域对比以及集成分析方法，深入分析青藏高原过去2000年温度变化的时空特征。结果表明：过去2000年青藏高原温度变化可以划分为4个世纪尺度的冷暖时期，即0—600 AD和1400—1900 AD的冷期、600—1400 AD和20世纪的暖期，其中1400—1900 AD和600—1400 AD可能分别对应于欧洲的小冰期和中世纪暖期；青藏高原过去2000 a温度变化存在很强的季节性特征，年平均气温变化存在争议，但夏季温度变化较为一致；夏季温度记录表明20世纪升温并不是很显著，中世纪暖期是过去2000 a中升温最显著且最温暖的时段。The dataset primarily includes high-resolution proxy temperature and precipitation records spanning the past 2000 years, reconstructed using various archives from different regions of the Tibetan Plateau, as well as integrated temperature reconstruction results. Spatial-temporal characteristics of temperature changes over the Tibetan Plateau during the past 2000 years were thoroughly analyzed through regional comparison and integrated analysis methods. The results show that temperature changes over the Tibetan Plateau during the past 2000 years can be divided into four centurial-scale cold and warm periods: the cold periods from 0–600 AD and 1400–1900 AD, and the warm periods from 600–1400 AD and the 20th century. Among these, 1400–1900 AD and 600–1400 AD may correspond to the European Little Ice Age and Medieval Warm Period, respectively. Temperature changes over the Tibetan Plateau over the past 2000 years exhibit strong seasonal characteristics; changes in annual mean temperature remain controversial, but summer temperature changes are relatively consistent. Summer temperature records indicate that the warming during the 20th century was not particularly significant, and the Medieval Warm Period was the most prominent and warmest warming interval over the past 2000 years.

搜集汇总

背景与挑战

背景概述

该数据集包含青藏高原过去2000年高分辨率的温度和降水代用序列，通过集成分析揭示了温度变化的时空特征，划分了4个世纪尺度的冷暖时期，并指出20世纪升温并不显著，中世纪暖期是过去2000年中最温暖且升温最显著的时段。