COMPUTER PROGRAMS FOR FORWARD AND INVERSE MODELING OF ACOUSTIC AND ELECTROMAGNETIC DATA By Karl J. Ellefsen 2011 U.S. Geological Survey Open-File Report 2011–1124 ABSTRACT A suite of computer programs was developed by the U.S. Geological Survey for forward and inverse modeling of acoustic and electromagnetic data. This report describes the computer resources that are needed to install and execute the programs, the program designs, some tests of their accuracy, and some suggested improvements. DISCLAIMERS Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey. Although this information product, for the most part, is in the public domain, it also contains copyrighted material as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty, expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. Although this program has been used by the USGS, no warranty, expressed or implied, is made by the USGS or the United States Government as to the accuracy and functioning of the program and related program material nor shall the fact of distribution constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. The following disclaimer pertains to the software from the Boost library: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. SUPERLU COPYRIGHT INFORMATION Copyright (c) 2003, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from U.S. Dept. of Energy) All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: (1) Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. (2) Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. (3) Neither the name of Lawrence Berkeley National Laboratory, U.S. Dept. of Energy nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. CONTENTS List of files: OF11-1124.pdf OF11-1118_data.zip 00README.txt The data folders include these files and (or) folders as well as other subfolders and files: OF11-1124_data Examples AmplitudeInvRadarTraces CalcRadarTraces PhaseInvRadarTraces PhaseInvRefractionTimes ReadMe.doc ReadMe.txt Libraries Debug LamchForSuperLu MyUtilities Release SparseLinearSystem SuperLu x64 Libraries.ncb Libraries.sln Utility Programs AcousticModelConverter Bin2Txt EmDispersionAdjuster EmModelConverter FdModelInterpolator GreensFuctionsWriter ReferenceValuesReset Release TACalculator TraceMaker x64 UtilityPrograms.ncb UtilityPrograms.sln WaveFormInv3 DataVolume GFCalculator LinearizedSoln Misc Model WaveEqn WaveFormInv x64 Bugs.txt ExecutionSpeed.txt Improvements.txt JobsToDo.txt WaveformInv3.ncb Waveform3.sln INSTRUCTIONS AND DOCUMENTATION FOR U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 2011-1124 The database can be downloaded via the Web from http://pubs.usgs.gov/of/2011/1124/. Files and folders may be extracted from a compressed zip file (OF11-1124_data.zip). In addition, an Adobe Portable Document Format (PDF) file (OF11-1124.pdf) can be downloaded, from which paper copies may be printed and requires Adobe Acrobat for viewing. Acrobat software runs on a variety of systems, and is available for download free of charge from Adobe at: http://www.adobe.com.