青藏工程走廊气温降雨数据（1965-2013）

该数据集是青藏工程走廊多年冻土段三个气象站近50年来的年平均气温和降雨量变化趋势。从记录数据可以看到，年平均气温整体在经历着缓慢的升高过程。三个气象站代表了青藏工程走廊多年冻土段的气候变化情况。从整体的气温和降雨量的变化趋势来看，过去50年，走廊北部和中部的气温增速较快，超过全球平均0.02℃／a的水平（IPCC）。北部的降雨量增加也较明显，尤其是五道梁气象站的降雨增速非常明显。气温变暖和降雨增加都对加速多年冻土的空间变化产生较大影响，是导致青藏高原多年冻土退化的主导因素。

This dataset documents the nearly 50-year trends of annual mean air temperature and precipitation at three meteorological stations situated in the permafrost zone of the Qinghai-Tibet Engineering Corridor. Analysis of the observational records shows that the annual mean air temperature has been undergoing a gradual overall warming trend. The three meteorological stations are representative of the climate change dynamics within the permafrost section of the Qinghai-Tibet Engineering Corridor. Overall, based on the trends of air temperature and precipitation, the northern and central parts of the corridor have witnessed faster temperature rise rates, exceeding the global average of 0.02℃ per annum as reported by the IPCC. Precipitation in the northern segment has also increased notably, with the Wudaoliang Meteorological Station exhibiting an especially prominent upward trend in precipitation. Both the warming air temperature and increased precipitation exert significant impacts on accelerating the spatial changes of permafrost, and they represent the dominant factors driving permafrost degradation on the Qinghai-Tibet Plateau.

搜集汇总

背景与挑战

背景概述

该数据集总结了青藏工程走廊多年冻土段三个气象站1965年至2013年的年平均气温和降雨量变化趋势，显示气温整体缓慢升高，北部和中部增速较快，超过全球平均水平，同时北部降雨量增加明显，尤其是五道梁站。这些变化是导致青藏高原多年冻土退化的主导因素，为气候变化研究提供关键数据支持。