CVM-H - Revision history

Mei: /* Downloads */

2019-11-05T17:44:22Z

Downloads

Mei: /* Downloads */

2019-02-04T23:37:14Z

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Pauk at 15:33, 19 March 2018

2018-03-19T15:33:00Z

Davidgil: /* Downloads */

2016-04-25T20:42:40Z

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Davidgil: /* Current Release */

2015-10-26T16:26:05Z

Current Release

Davidgil: /* Downloads */

2015-02-12T19:01:01Z

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Maechlin: /* References */

2015-02-12T03:41:10Z

References

Maechlin: /* References */

2015-02-12T03:40:55Z

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Maechlin: /* References */

2015-02-12T03:39:31Z

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Maechlin: /* References */

2015-02-12T03:39:03Z

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@@ Line 84: / Line 84: @@
 | Linux
 | '''SCEC CVM-H 15.1.1 md5 (small text file)'''
-| [http://hypocenter.usc.edu/research/cvmh/15.1.1/cvmh-15.1.1.md5 cvmh-15.1.1.md5]
+| [http://hypocenter.usc.edu/research/cvmh/15.1.1/cvmh-15.1.1.tar.gz.md5 cvmh-15.1.1.tar.gz.md5]
+|
 | Latest official release

@@ Line 77: / Line 77: @@
 |-
 | Linux
-| '''SCEC CVM-H 15.1.0 Source (532 MB tar (tar.gz) file)'''
+| '''SCEC CVM-H 15.1.1 Source (532 MB tar (tar.gz) file)'''
-| [http://hypocenter.usc.edu/research/cvmh/15.1.0/cvmh-15.1.0.tar.gz cvmh-15.1.0.tar.gz]
+| [http://hypocenter.usc.edu/research/cvmh/15.1.1/cvmh-15.1.1.tar.gz cvmh-15.1.1.tar.gz]
+|
 | Latest official release
 |-
 | Linux
-| '''SCEC CVM-H 15.1.0 md5 (small text file)'''
+| '''SCEC CVM-H 15.1.1 md5 (small text file)'''
-| [http://hypocenter.usc.edu/research/cvmh/15.1.0/cvmh-15.1.0.md5 cvmh-15.1.0.md5]
+| [http://hypocenter.usc.edu/research/cvmh/15.1.1/cvmh-15.1.1.md5 cvmh-15.1.1.md5]
+|
 | Latest official release

@@ Line 13: / Line 13: @@
 Previous improvements that appeared in version 11.9, and also appear in 15.1.0, include a newly compiled Moho surface, opening up the offshore Santa Maria basin to the western model margin, a detailed representation of the San Bernardino basin, a much smoother transition between low resolution area and high resolution area at its southern border in the Los Angeles region and removal of various small near surface artifacts.  The new Moho surface was compiled by Tape et al. from a large number of data sources, including global data sets, receiver functions and local studies. In replacing this surface care was taken that the depth interval around the Moho level both in the mantle and in the crustal portions of the model which were affected by this change, were assigned the correct domain, and consequently assigned velocities extrapolated from the underlying mantle model or from the crustal background model. In the offshore Santa Maria basin we extended the definition of the basement surface using reflection seismic data (McIntosh et al., 1991) to the very western margin of the model and to the north in order to remove an abrupt transition from the basin to background. We smoothly extrapolated sediment velocities from the onshore model into this new basinal area. Another basin, the relatively small San Bernardino basin, is now represented in the model. The basement surface is based on gravity data (Anderson, 2000) and seismic reflection data (Stephenson et al., 2004). To the west the basin is connected by a thin veneer of sediments to the Los Angeles basin whereas to the ESE the basin is represented as tapering out as is the case in other such basin representation. The ESE is the deepest part of the basin, and the data do not preclude a continuation of the basin in this direction. The Vp velocity structure in the basin is defined by stacking velocities (Stephenson et al., 2004) and a 1D velocity profile (Graves, 2004). Vs is derived from Vp using Brocher (2004). Finally, we removed a discontinuity in the velocity structure between the southern margin of the high resolution model in the Los Angeles area and the surrounding low resolution model. We modified the high resolution area by introducing a smooth N-S gradient in the delta between the low and high resolution models in a region at its southern margin.
-The CVM-H 15.1.0 consists of basin structures defined using high-quality industry seismic reflection profiles and tens of thousands of direct velocity measurements from boreholes (Plesch et al., 2009; Süss and Shaw, 2003). The basin structures are also compatible with the locations and displacements of major faults represented in the SCEC Community Fault Model (CFM) (Plesch et al., 2007). These basin structures were used to develop travel time tomographic models of the crust (after Hauksson, 2000) extending to a depth of 35 km, and upper mantle teleseismic and surface wave models extending to a depth of 300 km (Prindle and Tanimoto, 2006). These various model components were integrated and used to perform a series of 3D adjoint tomographic inversions that highlight areas of the model that were responsible for mismatches between observed and synthetic waveforms (Tape et al, 2009). Sixteen tomographic iterations, requiring 6800 wavefield simulations, yielded perturbations to the starting model that have been incorporated in the latest model release. CVM-H 15.1.0 also incorporates a new Moho surface (Yan and Clayton, 2007) and an upgraded geotechnical layer (GTL) based on a Vs30 map (Ely 2010), the Vp-density scaling relationship, and the code that delivers the model.
+The CVM-H 15.1.0 consists of basin structures defined using high-quality industry seismic reflection profiles and tens of thousands of direct velocity measurements from boreholes (Plesch et al., 2009; Süss and Shaw, 2003). The basin structures are also compatible with the locations and displacements of major faults represented in the [https://www.scec.org/research/cfm SCEC Community Fault Model (CFM)] (Plesch et al., 2007). These basin structures were used to develop travel time tomographic models of the crust (after Hauksson, 2000) extending to a depth of 35 km, and upper mantle teleseismic and surface wave models extending to a depth of 300 km (Prindle and Tanimoto, 2006). These various model components were integrated and used to perform a series of 3D adjoint tomographic inversions that highlight areas of the model that were responsible for mismatches between observed and synthetic waveforms (Tape et al, 2009). Sixteen tomographic iterations, requiring 6800 wavefield simulations, yielded perturbations to the starting model that have been incorporated in the latest model release. CVM-H 15.1.0 also incorporates a new Moho surface (Yan and Clayton, 2007) and an upgraded geotechnical layer (GTL) based on a Vs30 map (Ely 2010), the Vp-density scaling relationship, and the code that delivers the model.
 == Current Release ==

← Older revision		Revision as of 20:42, 25 April 2016
Line 55:		Line 55:
	#Use CVM-H for research purposes.		#Use CVM-H for research purposes.

		+	Please note that, depending on your version of Linux or OS X, some additional steps may be required. If you run into the following error:
		+
		+	configure: error: cannot find install-sh, install.sh, or shtool in ./aux-config "."/./aux-config
		+
		+	Then please follow these steps:
		+
		+	#Install automake. On Ubuntu this is sudo apt install automake. On Linux systems with Yum, the command is yum install automake.
		+	#Run aclocal
		+	#Run automake --force-missing --add-missing
		+	#Run autoconf
		+	#Run ./configure --prefix=/path/to/install/cvmh
		+	#Run make, make check, and make install

	{\| class="wikitable" border="1"		{\| class="wikitable" border="1"

@@ Line 19: / Line 19: @@
 SCEC CVM-H version 15.1.0 was released on Wednesday 11 February 2015.
-Version 15.1.0 includes revisions to the basement surface that include the localization and displacements of faults in the Santa Maria Basin. This affects the boundary between the sediment and basement velocity parameterizations.
+Version 15.1.0 includes revisions to the basement surface that include the localization and displacements of faults in the on-shore Santa Maria Basin. This affects the boundary between the sediment and basement velocity parameterizations.
 Version 11.9.1 represents an improvement on 11.9.0 and it is recommended that all users upgrade to this new version. Specifically, the latest iteration includes the following changes to the high resolution (HR) data set:

@@ Line 49: / Line 49: @@
 #Download the two CVM-H files (CVM-H source, CVM-H md5sum) into a directory and run the md5sum program to confirm you have an undamaged version of the distribution files.
 #Uncompress the distribution (tar.gz) files into a local directory on your computer.
 #Configure the installer by running the ./configure script.
 #Build the executables by running the top level makefile ('make').

@@ Line 267: / Line 267: @@
 == References ==
-#'''Shaw, John H., Plesch, Andreas, Tape, Carl, Suess, M. Peter, Jordan, Thomas H., Ely, Geoffrey, Hauksson, Egill, Tromp, Jeroen, Tanimoto, Toshiro, Graves, Robert, Olsen, Kim, Nicholson, Craig, Maechling, Philip J., Rivero, Carlos, Lovely, Peter, Brankman, Charles M., Munster, Jason (2015) '''Unified Structural Representation of the southern California crust and upper mantle, Earth and Planetary Science Letters, V. 415, Num. 0, p.1-15,http://dx.doi.org/10.1016/j.epsl.2015.01.016
+#'''Shaw, John H., Plesch, Andreas, Tape, Carl, Suess, M. Peter, Jordan, Thomas H., Ely, Geoffrey, Hauksson, Egill, Tromp, Jeroen, Tanimoto, Toshiro, Graves, Robert, Olsen, Kim, Nicholson, Craig, Maechling, Philip J., Rivero, Carlos, Lovely, Peter, Brankman, Charles M., Munster, Jason (2015) '''Unified Structural Representation of the southern California crust and upper mantle, Earth and Planetary Science Letters, V. 415, Num. 0, p.1-15, http://dx.doi.org/10.1016/j.epsl.2015.01.016
 #'''Suess, M. P., and J. H. Shaw, 2003:''' P-wave seismic velocity structure derived from sonic logs and industry reflection data in the Los Angeles basin, California, Journal of Geophysical Research, 108/B3.
 #'''Plesch, A., C. Tape, J. H. Shaw, and members of the USR working group, 2009, CVM-H 6.0:''' Inversion integration, the San Joaquin Valley and other advances in the community velocity model, in 2009 Southern California Earthquake Center Annual Meeting, Proceedings and Abstracts, vol. 19, pp. 260–261.
 #'''Tape, C., Q. Liu, A. Maggi, and J. Tromp, 2009:''' Adjoint tomography of the southern California crust, Science, v. 325, p. 988-992.
 #''' Ely, G., 2010:''' [http://earth.usc.edu/~gely/cvmh/ Vs30 Derived GTL]