on February 5, 2024
Comparing Near-Surface Investigations: Full-Waveform Inversion (FWI) vs. Multichannel Analysis of Surface Waves (MASW) in Seismic Earth Science
SeismicNear Surface Inspection: FWI vs. MASW When it comes to near-surface investigations in seismic and earth sciences, two widely used and effective methods are Full-Waveform Inversion (FWI) and Multichannel Analysis of Surface Waves (MASW). Both techniques provide valuable insight into subsurface properties, but they use different approaches and have distinct advantages and limitations. Understanding the
on February 4, 2024
Travel Times for Seismic Wave Types – Why reflected t-x plot curves
SeismicUnderstand travel times for seismic wave types: Exploring Reflected t-x Plot Curves Seismic waves play a critical role in understanding the structure and composition of the Earth’s interior. These waves, generated by earthquakes or artificially induced vibrations, provide valuable insights into the subsurface layers and help geoscientists unravel the mysteries hidden beneath our feet. One
on February 1, 2024
Advancing Seismic Imaging: Harnessing SBP-SAT for Reverse Time Migration of Wave Equation PDE in Earth Science
SeismicReverse time migration for wave equation PDE using SBP-SAT Reverse Time Migration (RTM) is a powerful seismic imaging technique widely used in exploration geophysics. It is used to create high-resolution images of subsurface structures by solving the wave equation Partial Differential Equation (PDE) backwards in time. This process involves the propagation of seismic waves from
on January 25, 2024
Unveiling the Enigma: Exploring the Slower Wave Speed in Seismic Phenomena
SeismicThe Concept of Wave Velocity in Seismic and Earth Science Wave velocity is a fundamental concept in seismic and earth science. It plays a critical role in understanding the propagation of waves through various media, including solids, liquids, and gases. When analyzing seismic waves, it is important to recognize that the wave speed can vary
on January 19, 2024
How to read Seismic Survey?
SeismicIntroduction to Seismic Surveys Seismic surveys are an essential tool in the geosciences, providing valuable insights into the structure and composition of the Earth’s subsurface. These surveys are widely used in a variety of industries, including oil and gas exploration, geothermal energy exploration, and geological mapping. Understanding how to read seismic surveys is critical to
on January 18, 2024
What is the vertical axis of this waveform shown in this tweeted IRIS GIF?
SeismicThe vertical axis of the waveform in the tweeted IRIS GIF: Exploring seismic phenomena Seismic waveforms play a critical role in understanding and studying various earth science phenomena, such as earthquakes and volcanic activity. A recent tweet featuring a GIF from the Incorporated Research Institutions for Seismology (IRIS) shows a waveform with a distinct vertical
on January 18, 2024
Exploring the Depths: Unraveling Velocity Anisotropy in Seismic Wavefield Theory
SeismicSeismic Wavefield Theory: Velocity Anisotropy Seismic wavefield theory is a fundamental concept in the field of geophysics that studies the behavior and characteristics of seismic waves as they propagate through the Earth’s subsurface. These waves provide valuable information about the structure and properties of the subsurface, aiding in the understanding of various geological processes and
on January 17, 2024
Wavelength Analysis of Seismic Waves Generated by Gaussian Sources: Unveiling Earth’s Subsurface with Precision
SeismicGetting Started Seismic waves are vibrations that propagate through the Earth’s crust and are generated by various sources such as earthquakes, volcanic activity, and man-made activities. Understanding the characteristics of seismic waves is crucial for seismic hazard assessment, earthquake engineering, and exploration of the Earth’s interior. An important parameter describing seismic waves is their wavelength,
on January 9, 2024
Analyzing the Feasibility of Approximating Seismic Building Motion as Simple Harmonic Motion: A Critical Examination
Seismic1. Introduction: Understanding the Dynamics of Swinging Buildings During Earthquakes During an earthquake, buildings are subjected to dynamic forces that can cause them to sway and vibrate. Understanding the behavior of buildings under seismic conditions is critical to ensuring the safety and structural integrity of these structures. A commonly used approximation in structural engineering is
on December 17, 2023
Unlocking the Earth’s Secrets: Harnessing Accelerometers as Geophones for Seismic Surveys
SeismicGetting Started Seismic surveys play a vital role in understanding the Earth’s subsurface and are widely used in various scientific, engineering, and environmental applications. Traditionally, geophones have been the primary instruments used to measure ground motion during seismic surveys. However, recent technological advances have led to the exploration of alternative sensors, such as accelerometers, for