青藏高原地区对流层顶的变化及其与ENSO的关系  

Changes of the Tropopause on the Tibetan Plateau and Its Relationship with ENSO

作　　者：张璐 曼吾拉·卡德尔 张昕 周志花 邹逸航 吴昊 高韶勃 ZHANG Lu;MOVLAN Kader;ZHANG Xin;ZHOU Zhihua;ZOU Yihang;WU Hao;GAO Shaobo(Inner Mongolia Meteorological Observatory,Huhhot 010051,China;Xinjiang Airport(Group)Co.,Ltd.,Urumqi 830000,China;Unit 93719 of Chinese People s Liberation Army,Huhhot 0101122,China;Inner Mongolia Meteorological Training Center,Huhhot 010051,China;Grassland Research Institute,Chinese Academy of Agricultural Sciences,Huhhot 010010,China)

机构地区：[1]内蒙古自治区气象台,呼和浩特010051 [2]新疆机场(集团)有限责任公司,乌鲁木齐830000 [3]中国人民解放军93719部队气象台,呼和浩特0101122 [4]内蒙古自治区气象干部培训学院,呼和浩特010051 [5]中国农业科学院草原研究所,呼和浩特010010

出　　处：《亚热带资源与环境学报》2023年第4期8-17,共10页Journal of Subtropical Resources and Environment

基　　金：内蒙古自然科学基金博士基金(2020BS03046);内蒙古自然科学基金青年基金(2023QN04008);中国农业科学院草原研究所基本科研业务费专项项目(1610332020015);内蒙古阴山北麓草原生态水文国家野外科学观测研究站开放研究基金(中国水利水电科学研究院)(YSS2022013)。

摘　　要：利用1948—2018年NCEP/NCAR再分析资料、NOAA提供的ERSST月平均海温资料,分析青藏高原地区对流层顶的变化及其与ENSO的关系,得到以下结论:1)对流层顶温度的变化表现为由赤道向两级递增,对流层顶气压的变化与温度类似,对流层顶温度和气压各季节标准差分布表现为变率从赤道向两级递增,且南半球变率大于北半球,高纬度地带更加明显;2)与青藏高原地区对流层顶温度相关的海温型为类El Nino型,夏季青藏高原地区对流层顶温度与赤道中西太平洋呈反相关,各季节青藏高原地区对流层顶气压和SST场关系均呈类El Nino型;3)春季、夏季、秋季对流层顶气压偏高时,对应500 hPa上鄂霍次克海及其以东地区的负异常及副热带以南地区的正异常,对流层顶温度与nino34指数整体上保持较为显著的同向变化关系。Based on NCEP/NCAR reanalysis data and ERSST monthly average temperature of sea surface data provided by NOAA during 1948—2018,the research analyzed the changes in the tropopause temperature and pressure over the Tibetan Plateau and its relationship with ENSO.The conclusions are as follows,1)the change of tropopause temperature is shown as a two-level increase from the equator,while the change of tropopause pressure is similar to that of temperature.The distribution of the standard deviation of tropopause temperature and pressure in each season is shown as an increase of the variability from the equator to two poles.The variability in the southern hemisphere is greater than that in the northern hemisphere,especially in the high latitudes.2)The SST pattern related to the tropopause temperature over the Qinghai Tibet Plateau is similar to El Nino pattern.In summer,the tropopause temperature over the Qinghai Tibet Plateau is inversely related to the equatorial central and western Pacific Ocean.During different seasons,the relationship between the tropopause pressure and SST field over the Qinghai Tibet Plateau is similar to El Nino pattern.When the tropopause pressure is relatively high in spring,summer and autumn,corresponding to the negative anomaly in the Okhotsk Sea and its east area at 500 hPa and the positive anomaly in the south area of the subtropical zone,the tropopause temperature and nino34 index maintain a relatively significant co-directional change relationship as a whole.

关 键 词：青藏高原 对流层顶 ENSO 气压 温度 

分 类 号：P468[天文地球—大气科学及气象学]