文献类型：期刊文献

英文题名：Discrepancies of Upper Troposphere Summer Thermal Contrast Between Tibetan Plateau and Tropical Indian Ocean in Multiple Data

作者：Luo, Xiaoqing[1,2];Xu, Jianjun[1,2];Li, Kai[3]

机构：[1]Guangdong Ocean Univ, South China Sea Inst Marine Meteorol, Zhanjiang, Peoples R China;[2]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang, Peoples R China;[3]Guangdong Ocean Univ, Maritime Coll, Zhanjiang, Peoples R China

年份：2021

卷号：9

外文期刊名：FRONTIERS IN ENVIRONMENTAL SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000642427200001)、、Scopus(收录号：2-s2.0-85104682468)、WOS

基金：This research was supported by the Second Tibetan Plateau Scientific Expedition and Research (STEP) program (No. 2019QZKK0105), the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDA20060501), and the 2019 Non-funded Science and Technology Research Project of Zhanjiang (No. 20051817454-6338). The data providers are University of Vienna, Climate Change Research Centre, University of New South Wales Sydney, European Centre for Medium Range Weather Forecasts, Japan Meteorological Agency, National Centers for Environmental Prediction Department of Energy, National Center for Atmospheric Research, Chinese Academy of Sciences, and Max Planck Institute for Meteorology.

语种：英文

外文关键词：summer thermal contrast; Tibetan Plateau; tropical Indian Ocean; upper troposphere; discrepancies

外文摘要：Under the background of global warming, the summer land-sea thermal contrasts at the upper troposphere exists great discrepancies in radiosonde data (IUK, RICH, and RAOBCORE), reanalysis data (JRA-55, NCEP/DOE, and ERA5) and CMIP6 models results (MPI, FGOALS, and CESM2) for the period of 1979-2014. It can be found that the descriptive statistical indicators (i.e., maximum, minimum, and skewness) of the summer land-sea thermal contrasts index (TTI) between the Tibetan Plateau (TP) and the Tropical Indian Ocean (TIO) vary greatly. The ERA5 and JRA-55 data have the best correlation with radiosonde data. The linear trend and running linear trend (RTL) of the radiosonde data are significantly correlated with the reanalysis data, and both show that the land-sea thermal contrast rapidly increasing are in 1990s and the late 2000s, and the period of rapid weakening was early 2000s. This interannual variation may modulated by the decadal signals such as Pacific Decadal Oscillation (PDO). Except for the NCEP/DOE and IUK, other data show that the most significant warming in the TP-TIO region is at the upper troposphere, and the vertical profiles of the summer temperature trend are quite different in different data, and CMIP6 shows an obvious warm bias in the upper troposphere.