Masw seismic services, masw geophysical surveys, or a masw. Masw short course park seismic llc 2 instructors bio dr. Its impact power is directly related to the range of wavelengths for the generated surface waves, which determines the maximum depth of investigation zmax as illustrated in a figure below. The maswaves software can be used and modified free of charge. Seismic sales enablement enterprise sales content management. Seismic records can be obtained by shooting from one end of the spread and then continuing. Near surface exploration seismic systems, sometimes called engineering seismographs, are used for earthquake site response, rippability surveys, depthtobedrock, groundwater exploration, geologic hazards, shallow reflection surveys, shear wave surveys and multichannel analysis of surface waves masw. Many of the equations derived for general physics to describe or define wave propagation can be solved or applied to the study of seismic waves. Surfseis software was developed at the kansas geological survey to process seismic data using the multichannel analysis of surface waves masw method. Since its founding in 2006, park seismic llc has been focusing on the research and development of software solutions for masw investigation, in an effort to enhance the precision and the costeffectiveness of masw analyses. The most common purpose for running a passive masw survey is to increase the investigation depth zmax beyond the limit of most active surveys e. Multichannel analysis of surface waves masw active and. Seismic is the leading sales enablement and marketing enablement software that lets teams find the right sales content and optimize the sales process.
Welcome to home of the masw technique this site is operated by park seismic llc, specializing in the masw services. As discussed in other pages, masw depends on the dispersion properties of surface waves, primarily rayleigh waves. Six straight years of at least 97% growth have expanded the team from its five san diego founders with experience in enterprise content management to over 550 employees across 9. Download easy masw software solution that allows you to view, analyze and interpret seismic data using the masw method, multichannel analysis of surface waves. This is the most common type of masw survey that can produce a 2d v s profile. One of the first software packages, created by a government agency, is from the kansas geological survey, called surfseis masw software. More technical details of the software can be found online. Parkseis, comprehensive tool for masw data processing to generate shear wave velocity profiles in 1d, 2d, and 3d that can be used with. This video is about masw multichannel analysis of surface waves data acquisition. A simple 2conductor wire connects the geophones to the computer.
A brief introduction of the software features is presented here. In short, masw analyzes the propagation of measured surface waves and then deduces the shear wave velocities vs that is responsible for the propagation pattern of the surface waves. If you have estimated the necessary number of seismic spread channels say, 24 and you have the ability to acquire data using a larger number of channels say, 48, then you may find it more labor efficient to acquire masw data using a fixed spread. A dedicated module for multichannel analysis of surface wave masw. Tool for analysis of multichannel analysis of surface waves masw field data and evaluation of. Kgssurfseis masw softwarefrequently asked questions.
This is a list of free and opensource software for geophysical data processing and interpretation. Get in touch with a seismic team member to ask a question or learn more about how our marketing and sales enablement solution can drive revenue growth. If it is a dispersioncurve image file it will be displayed in the window for viewing seismic. Explore a technology company career today for a company with an eye to the future. It adopts the conventional mode of survey using an active seismic source e.
Masw is a seismic surfae wave method for geotechnical applications. Passive masw data acquisition and processing see user guide. Seismic survey data processing using the multi channel. Masw multichannel analysis of surface wave in the radexpro seismic software. The main set of manuals distributed with the software was developed for surfseis version 1. Processing and inversion software seismic reflection, refraction or multi channel analyses of surface waves, masw. Were transforming the way sales and marketing teams work together. Easy data import seg2, segd, segy, segb and more formats.
Overall features of parkseis are introduced in this video. The active figure 1 masw method was introduced in geophysics in 1999. Masw software, parkseis, specialized in masw survey and data processing services for wind turbine site characterization, masw tutorial, void and cavity detection. Seismic refraction analyses of the same masw seismic survey data can be used to. The company develops data management software that updates information in real time for companys employees and customers. Kgssurfseis masw softwaredownloads and demo request. Obtain shearwave velocity vs with depth z estimates using surfseis.
The propagation velocities of that wave are recorded using an array of low frequency geophones 4. Seismic careers technology company careers in sales. Multichannel analysis of surface waves masw is seismic exploration method for. If you have a kgs usb dongle from any of our software, you can receive the twoday surfseis 6. Our smooth inversion tomographic method is based on physically realistic modeling of. This geophysical method and analysis is based on the dispersive nature of surface waves, mostly rayleigh waves, as they propagate through the earth.
Parkseis, comprehensive tool for masw data processing to generate shear wave velocity profiles in 1d, 2d, and 3d that can be used with active, passive, and activepassive combined masw surveys. Seismic surveys are also a costeffective way to extend information derived from borehole logs over a much larger. A masw seismic velocity panel or cross section is generated from interpreted shear wave velocities at depth along a masw seismic survey line. Seismic source for masw surveys a seismic source generates surface waves as well as body waves when it makes an impact on the ground surface. Joint inversion of masw and seismic refraction data youtube. Soilbedrock mapping, seismic site characterization, anomaly detection. Travel time inversion, tomography inversion, automatic first break pick. Having this very ergonomic and reliable package of seismic processing tools available is quite a technical plus point, either at fieldwork with qctools or back at the. Seismic surveys provide information about stratigraphy, hydrogeology, and bedrock topography. Upon launching the software, a wizard walks you through the data analysis. Easy masw is a new software for the interpretation and archiving of seismic data using the masw method multichannel analysis of surface waves. It is well suited for indepth hruhr marine seismic processing, realtime marine 2d3d seismic qc, onboard fast track processing, land and marine offline seismic qc, complete processing of nearsurface seismic data reflection, refraction, tomography, masw and vsp processing. Multichannel analysis of surface waves masw is a seismic exploration method for determination of nearsurface shear wave velocity profiles based on analysis of horizontally travelling rayleigh.
Swan is a software package for seismics data processing which allows to. Kansas geological survey software for comparison of seismic model results. The resulting twodimensional 2d masw model is presented as a model of swave velocity versus depth, which can be correlated to approximate pwave velocities, and associated estimated material rippability, depth to caliche. Multichannel analysis of surface waves easy masw geostru. Seismic survey data processing using the multi channel analysis of surface waves method masw. The seismic site characterization requires an evaluation of an average shearwave velocity vs for the top 30m or 100ft depth. Easy masw is a new software for the interpretation and archiving of seismic data using the masw method multichannel analysis of surface. Joint inversion of masw and seismic refraction tomography data in zondst2d software. Geomatrix earth science limited seismic geophysical software. Geometrics seismic training 10 field setup this feature is not available right now. It evaluates stiffness and shearwave velocity of ground materials in a depth range of engineering interest. Sales enablement global leader seismic sales enablement. The list is split into broad categories, depending on the intended use of the software and its scope of functions. We can also acquire and analyze highresolution seismic reflection and refraction tomography data as well as vsp vertical seismic profile.
Choon park, one of the developers of kgs surfseis, came out with his own software package, called parkseis. The next versions of the software surfseis 2, 3, and 4have included new features that take into account new research and methodological developments, as well as users demands for more options and improved user interface. A masw seismic survey assists with determining shear wave velocities at depth. It originally focused on analyzing rayleigh surface waves, which are typically acquired using vertical sources and receivers. Kunjungan kuliah praktek seismologi teknik, pengolahan data masw oleh bapak fajri syukur rahmatullah, m. Choon park is lead author of the masw technique published in geophysics in 1999. Any geophysical survey company familiar with seismic. Kansas geological survey is the birth place of the multichannel analysis of surface waves method research efforts originated at the kansas in the late 80s. Founded in 2010, seismic has quickly grown to become the global leader in sales enablement. Masw masw is a seismic method that uses surface waves specifically fundamental mode rayleigh waves to estimate shear wave velocities. Masw sinkhole seismics masw karst study geoview inc. Masw multichannel analysis of surface waves data acquisition. There are two conditions that have to be met to increase zmax. How to acquire data for masw survey optimum field and recording parameters.
In general, masw applications can be grouped into following categories. A hammer or other impact source is used to generate a surface wave. Radexpro is a seismic processing software on windows. Masw is a seismic method of ground geophysics used to evaluate the shearwave velocities of subsurface materials, geological mapping and bedrock profiling.
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