Results 81 to 90 of about 2,325 (159)
Dizhen xuebao地震辐射能量主要由高频体波携带，与震源动态特征直接相关，能够有效地弥补地震矩和矩震级对震源动态过程和高频成分描述的不足，为地震应急和灾害评估提供更为全面的参考。本文使用自主研发的地震辐射能量测定软件测定了中国青藏高原自1990年以来M≥6.0浅源地震的地震辐射能量，并初步分析了中国青藏高原地区浅源地震的能量释放规律。研究结果表明：① 利用该软件测定的中国青藏高原地区的34例浅源地震所得的测定结果稳定可靠。在一般情况下，地震的矩震级MW 与能量震级Me并不相等，为了更全面地评估地震动效应 ...
Handong Kong +3 more
doaj +1 more source
The strong earthquakes and seismogenic structures in eastern margin of Tibetan Plateau and adjacent areas: A preface for the special topic [PDF]
The eastern margin of the Tibetan Plateau is composed of multiple secondary tectonic units which constitute typical “multi-level extrusion-rotation active tectonic system”.
Bo Zhang +4 more
core +1 more source
Shuitu Baochi Xuebao[目的] 青藏高原的湖泊是气候变化的重要指示器,其扩张或缩减亦对青藏高原自然环境产生重要影响。[方法] 选取位于青藏高原不同气候子区的3个典型湖泊(青海湖、羊卓雍错、乌兰乌拉湖),采用遥感监测手段,研究3个典型湖泊1985—2021年水文特征的时空变化规律,揭示关键气候因子的作用,并进一步探讨冰川和冻土对典型湖泊的影响。[结果] 研究期间,青海湖的面积和水位呈显著上升趋势,面积增长238.68 km2,水位增长1.32 m,空间上则向东西方向扩张;羊卓雍错湖泊面积呈先波动上升后减少趋势 ...
张嘉琪, 张会兰, 刘雪妍
doaj
野生动物学报, 1989 藏原羚青藏高原高耸陡立,与南北两极遥遥相对,号称“地球第三极”。只因这里高海拔缺氧,荒芜又贫瘠,被视为不可逾越的生命禁区。然而,每到湖泊之滨,江河之岸总有寸草滋生,绿州盖地。有了植物便可能蕴育动物。果真,这片草地就有鼠兔钻洞旱獭穴居,高原兔的穿梭忙碌,还有雪雀的喧鸣和黑颈鹤的悠闲步履……。但最令人难忘的是频频映入我眼帘的藏原羚的倩影,它尤如生命的使者,无论你走到高原的腹地还是高山的尽端、处处都伴随着你。藏原羚体态均称、轻盈敏捷,活泼可爱、形如北方的梅花鹿,但略小些,要说像狍子,却是黄羊的家族 ...
朴仁珠
doaj
Classification and identification of FY-4A convective initiation products in summer on the Qinghai-Tibet Plateau [PDF]
This study aims to understand and enhance the indicative significance of convective initiation (CI) products from Fengyun-4A (FY-4A) satellite for summer precipitation over the Qinghai-Tibet Plateau. Using the convective initiation (CI) products of FY-4A
Lina ZHANG +3 more
core +1 more source
Geological environment and main geological safety challenges in the northern segment of the southeast Xizang (Tibet) power transmission corridor [PDF]
Objective Southeast Xizang(Tibet) boasts a wealth of hydroelectric resources, attributed to its distinctive topography, geomorphology, and climatic conditions.
LI Xianxin +4 more
core +1 more source
野生动物学报, 1985 1984年9月中旬,首都十几位记者对全国最大的阿尔金山自然保护区,进行了采访考察。阿尔金山地处新疆东南隅,分别与青海、西藏接壤,是昆仑山系逶迤向东的北支,属青藏高原羌塘地区的一部分。新疆维吾尔自治区政府1983年划定的阿尔金山自然保护区,以海拔四千米左右的高原盆地库木库里为中心,面积约四万五千平方公里。由于地势陡峭,沟壑深邃,交通闭塞,加上高山缺氧,淡水缺乏,气候变化无常,
谢联辉
doaj
Geochemical characteristics and evolution process for hot spring gas of the north-south graben system in Qinghai−Xizang Plateau [PDF]
While the hydrogeochemical characteristics of a single geothermal field in Qinghai−Xizang Plateau are well understood, the study of hot spring gases in various graben systems and their spatial characteristics and evolutionary processes, remains ...
Jinlin ZHOU +5 more
core +1 more source
Observational characteristics of summer non-precipitating clouds in Jiulong on the east side of the Qinghai-Tibet Plateau [PDF]
Jiulong is located on the east side of the Qinghai-Tibet Plateau (QTP) and is a region prone to southwest vortex. Cloud detection with new-type detection equipment in this region helps enhance the knowledge of cloud characteristics in the southwest ...
Guirong XU +5 more
core +1 more source
Dizhen xuebao收集青藏高原东缘及周边地区1 943个地震台站的观测数据，拾取4 377个近震事件的20万零737条P波到时数据和1万8 902个远震事件的137万8 547条相对走时残差，采用P波走时层析成像方法获得了青藏高原东缘0—900 km深度范围内的P波速度结构。结果显示：四川盆地下方存在较厚的高速异常，向下延伸至300 km深度，表明四川盆地总体上保持克拉通特性；青藏高原下方印度板片的俯冲具有分段差异性，其中西段俯冲至班公—怒江缝合带附近，东段俯冲得更远，这种分段差异现象表明俯冲的印度岩石圈板片存在撕裂 ...
Long Wang +4 more
doaj +1 more source