空间科学学报2023，Vol.43Issue(6)：1150-1159,10.DOI:10.11728/cjss2023.06.2023-0080
2000-2021年青藏高原地区地表净辐射的时空变化
Spatio-temporal Changes in Surface Net Radiation in the Qinghai-Tibet Plateau from 2000 to 2021
摘要
Abstract
Based on the SYN1 deg-Level 3 radiation product from the CERES satellite spanning from March 2000 to February 2022,The Theil-Sen Median trend analysis,Mann-Kendall test,and EOF anal-ysis were combined to investigate the spatiotemporal patterns of surface net radiation on the Qinghai-Tibet Plateau over the past 22 years.The study found that in terms of spatial distribution characteris-tics,the surface net radiation in the Qinghai-Tibet Plateau exhibits a general pattern of higher values in the southern region and lower values in the northern region.The variation trend of surface net radiation shows a high degree of consistency,but the fluctuation amplitude of it in the southern region of the Qinghai-Tibet Plateau is much higher than that in the northern region of the Qinghai-Tibet Plateau.Re-garding to the temporal evolution,the surface net radiation displayed quasi-sinusoidal oscillations with a noticeable annual periodicity.Notably,there was a sudden decrease of approximately 5.52 W·m-2 in the period from 2016 to 2017.Concurrently,there was an increase of about 18.75%in the cloud area frac-tion during the same period.关键词
青藏高原/地表净辐射/时空变化/EOF分析/Theil-Sen Median趋势/Mann-Kendall检验Key words
Qinghai-Tibet Plateau/Surface net radiation/Spatiotemporal change/EOF analysis/Theil-Sen Median trend/Mann-Kendall test分类
天文与地球科学引用本文复制引用
崔玉祥,胡斯勒图,李同文,姬大彬,张颢,施建成..2000-2021年青藏高原地区地表净辐射的时空变化[J].空间科学学报,2023,43(6):1150-1159,10.基金项目
国家自然科学基金项目(42025504)和第二次青藏高原综合科学考察研究项目(2019 QZKK0206)共同资助 （42025504）
