强对流天气引致的“前驱波”及其对地震前兆诊断的新启示:以青藏高原东北部为例  

The “Precursor Wave” Caused by Severe Convective Weather and Its New Implications for the Diagnosis of Earthquake Precursors: A Case Study of the Northeastern Tibetan Plateau

作　　者：杨小林 

机构地区：[1]井冈山大学建筑工程学院,江西 吉安

出　　处：《地球科学前沿（汉斯）》2024年第2期103-108,共6页Advances in Geosciences

摘　　要：地震前驱波自报道以来,国内已有不少研究相继发现了该变化,但其中不乏一些误诊案例。鉴于当下前驱波识别中存在的一些问题,笔者着重从观测实践的角度出发,同时还结合天气动力学背景,对2016年8月18日青海门源台钻孔应变记录中出现的形似远震前驱波的异常进行了综合诊断。结果表明,该“前驱波”主要源自青藏高原东北部强对流天气过程中的气压扰动。这一工作不仅有助于拓展前驱波理性识别的视角,同时还能为青藏高原地球物理观测中短时异常的溯源研究提供参考。Since the earthquake precursor wave was reported, many studies have found this change, but some of them are cases of misdiagnosis. In view of the existing problems in the identification of precursor waves, the author makes a comprehensive diagnosis of the anomalies that appear like far-earthquake precursor waves in the borehole strain records of Menyuantai, Qinghai Province on August 18, 2016 from the perspective of observation practice and combined with the back-ground of weather dynamics. The results show that the “precursor wave” mainly originates from the barometric disturbance during the strong convective weather in the northeastern part of the Tibetan Plateau. This work not only helps to expand the perspective of rational identification of precursor waves, but also provides a reference for short-term anomaly tracing research in geophysical observation of the Tibetan Plateau.

关 键 词：强对流天气 青藏高原 前驱波 地震前兆 钻孔应变 气压 

分 类 号：P31[天文地球—固体地球物理学]