At UTC 2018-01-10 02:51:31,an Mw7.6 earthquake occurred 44 km east of Great Swan Island,Honduras(location 17.469°N,83.520°W,depth 10 km,according to the United States Geological Survey).We carried out studie...At UTC 2018-01-10 02:51:31,an Mw7.6 earthquake occurred 44 km east of Great Swan Island,Honduras(location 17.469°N,83.520°W,depth 10 km,according to the United States Geological Survey).We carried out studies of the focal mechanism and rupture process of the earthquake,using seismic data from the IRIS data center.For the focal mechanism solution,a point source model was used to invert 26 far-field P-waveforms and 26 SHwaveforms with high S/N ratio and relatively even azimuth coverage(epicentral distance 30°<△<90°);then the result(Figure 1)was used to construct a finite fault model for rupture process inversion(Yao ZX and Ji C,1997;Wang WM et al.,2008),resulting in a preliminary model of the slip distribution of this earthquake(Figures 2–4).The calculated seismic moment is 2.41×10^20 N·m and the estimated earthquake magnitude Mw=7.5.The maximum slip is about 1900 cm.展开更多
近些年来,波浪能作为新型可再生能源日益受到人们的重视。波浪资源评估对于研发波浪能发电装置、为波浪发电场选址具有至关重要的作用,目前主要通过实地观测和数值模拟两种手段对波浪资源进行评估。本文利用第三代波浪模型对斋堂岛附近...近些年来,波浪能作为新型可再生能源日益受到人们的重视。波浪资源评估对于研发波浪能发电装置、为波浪发电场选址具有至关重要的作用,目前主要通过实地观测和数值模拟两种手段对波浪资源进行评估。本文利用第三代波浪模型对斋堂岛附近海域进行了数值模拟,分析了当地的波浪条件并对蕴藏的波浪能资源进行了初步评估,并对目标位置的波浪资源进行了详细地计算和分析。计算结果表明,斋堂岛海域波浪资源有着显著的季节变化特征,波浪集中分布在东–南方向,最大波能流密度可达25 k W/m,资源相对稳定。展开更多
基金supported by the National Natural Science Foundation of China (grants No. 41474036 and 41630210)
文摘At UTC 2018-01-10 02:51:31,an Mw7.6 earthquake occurred 44 km east of Great Swan Island,Honduras(location 17.469°N,83.520°W,depth 10 km,according to the United States Geological Survey).We carried out studies of the focal mechanism and rupture process of the earthquake,using seismic data from the IRIS data center.For the focal mechanism solution,a point source model was used to invert 26 far-field P-waveforms and 26 SHwaveforms with high S/N ratio and relatively even azimuth coverage(epicentral distance 30°<△<90°);then the result(Figure 1)was used to construct a finite fault model for rupture process inversion(Yao ZX and Ji C,1997;Wang WM et al.,2008),resulting in a preliminary model of the slip distribution of this earthquake(Figures 2–4).The calculated seismic moment is 2.41×10^20 N·m and the estimated earthquake magnitude Mw=7.5.The maximum slip is about 1900 cm.
文摘近些年来,波浪能作为新型可再生能源日益受到人们的重视。波浪资源评估对于研发波浪能发电装置、为波浪发电场选址具有至关重要的作用,目前主要通过实地观测和数值模拟两种手段对波浪资源进行评估。本文利用第三代波浪模型对斋堂岛附近海域进行了数值模拟,分析了当地的波浪条件并对蕴藏的波浪能资源进行了初步评估,并对目标位置的波浪资源进行了详细地计算和分析。计算结果表明,斋堂岛海域波浪资源有着显著的季节变化特征,波浪集中分布在东–南方向,最大波能流密度可达25 k W/m,资源相对稳定。
