Earthquake, explosion, and a nuclear test data are compared with forward modeling and band-pass filtered surface wave amplitude data for exploring methodologies to improve earthquake–explosion discrimination. The pro...Earthquake, explosion, and a nuclear test data are compared with forward modeling and band-pass filtered surface wave amplitude data for exploring methodologies to improve earthquake–explosion discrimination. The proposed discrimination method is based on the solutions of a double integral transformation in the wavenumber and frequency domains. Recorded explosion data on June 26, 2001（39.212°N, 125.383°E） and October 30, 2001（38.748°N, 125.267°E）, a nuclear test on October 9, 2006（41.275°N, 129.095°E）, and two earthquakes on April 14, 2002（39.207°N, 125.686°E） and June 7, 2002（38.703°N, 125.638°E）, all in North Korea, are used to discriminate between explosions and earthquakes by seismic wave analysis and numerical modeling. The explosion signal is characterized by first P waves with higher energy than that of S waves. Rg waves are clearly dominant at 0.05–0.5 Hz in the explosion data but not in the earthquake data. This feature is attributed to the dominant P waves in the explosion and their coupling with the SH components.展开更多
在上期中，我们分别对3Dlabs公司的Wildcat VP990 Pro 512MB、ATI公司的FireGL X2-256／T2-128／T2s-64和NVIDTA公司的Quadro FX 3000／FX 500专业图形卡做了比较细致的介绍，并从其架构、速度、功能以及驱动程序等方面进行比较和分析...在上期中，我们分别对3Dlabs公司的Wildcat VP990 Pro 512MB、ATI公司的FireGL X2-256／T2-128／T2s-64和NVIDTA公司的Quadro FX 3000／FX 500专业图形卡做了比较细致的介绍，并从其架构、速度、功能以及驱动程序等方面进行比较和分析．所得出的结论更多来自于主观判断和猜测。而接下来。展开更多
文摘Earthquake, explosion, and a nuclear test data are compared with forward modeling and band-pass filtered surface wave amplitude data for exploring methodologies to improve earthquake–explosion discrimination. The proposed discrimination method is based on the solutions of a double integral transformation in the wavenumber and frequency domains. Recorded explosion data on June 26, 2001（39.212°N, 125.383°E） and October 30, 2001（38.748°N, 125.267°E）, a nuclear test on October 9, 2006（41.275°N, 129.095°E）, and two earthquakes on April 14, 2002（39.207°N, 125.686°E） and June 7, 2002（38.703°N, 125.638°E）, all in North Korea, are used to discriminate between explosions and earthquakes by seismic wave analysis and numerical modeling. The explosion signal is characterized by first P waves with higher energy than that of S waves. Rg waves are clearly dominant at 0.05–0.5 Hz in the explosion data but not in the earthquake data. This feature is attributed to the dominant P waves in the explosion and their coupling with the SH components.
文摘在上期中，我们分别对3Dlabs公司的Wildcat VP990 Pro 512MB、ATI公司的FireGL X2-256／T2-128／T2s-64和NVIDTA公司的Quadro FX 3000／FX 500专业图形卡做了比较细致的介绍，并从其架构、速度、功能以及驱动程序等方面进行比较和分析．所得出的结论更多来自于主观判断和猜测。而接下来。
