Difference between revisions of "CyberShake 1D Model"

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== BBP 1D Model for LA Basin ==
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The following plots show a 1D velocity model that we will use for our CyberShake 14.2 Production run.  This is a layer model. We will linearly interpolate the layers with this rule: Vp,Vs, and rho values are linearly interpolated between layer n to n+1.  We decided to linearly interpolate this model to avoid issues with the step function and to more closely match the average.
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<pre>
 
  
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18
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== Linearly Interpolated BBP 1D model with 1km Moho Velocity Profiles ==
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  0.0020  1.7000  0.4500  2.0000    45.00    22.50
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Below are plots showing Vp, Vs, and rho from the selected 1D model.  These layers were linearly interpolated to avoid reflection issues.
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  0.0040  1.8000  0.6500  2.1000    65.00    32.50
 
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  0.0060  1.8000  0.8500  2.1000    85.00    42.50
 
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  0.0080  1.9000  0.9500  2.1000    95.00    47.50
 
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  0.0100  2.0000  1.1500  2.2000  115.00    57.50
 
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  0.0700  2.4000  1.2000  2.2000  120.00    60.00
 
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  0.2000  2.8000  1.4000  2.3000  140.00    70.00
 
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  0.2000  3.1000  1.6000  2.4000  160.00    80.00
 
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  0.2000  3.4000  1.8000  2.4500  180.00    90.00
 
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  0.3000  3.7000  2.1000  2.5000  210.00  105.00
 
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  2.0000  4.4000  2.4000  2.6000  240.00  120.00
 
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  2.0000  5.1000  2.8000  2.7000  280.00  140.00
 
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  1.0000  5.6000  3.1500  2.7500  315.00  157.50
 
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  5.0000  6.1500  3.6000  2.8250  360.00  180.00
 
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  5.0000  6.3200  3.6500  2.8500  365.00  182.50
 
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  5.0000  6.5500  3.7000  2.9000  370.00  185.00
 
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  10.0000  6.8000  3.8000  2.9500  380.00  190.00
 
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999.0000  7.8000  4.5000  3.2000  450.00  225.00
 
  
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</pre>
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{|
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|<b>Linearly Interpolated Broadband Platform 1D model with 1km Moho to 60km Depth</b>
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|<b>Linearly Interpolated Broadband Platform 1D model to 5000m Depth</b>
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|-
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|[[File:plotbbp1dmoho.png|600px]]
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|[[File:bbp5k.png|600px]]
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|}
  
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== Linearly Interpolated BBP 1D model with 1km Moho Overlay Plots ==
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Below are plots showing 1D profiles extracted from CVM-S4 for the 386 CyberShake sites in the study, with the selected 1D model plotted on top of this collection of profiles.
  
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== 1D Model Selection for CyberShake ==
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{|
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|[[File:bbp1d_cvms_comp_vp.png|600px]]
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|[[File:bbp1d_cvms_comp_vs.png|600px]]
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|}
  
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Currently, there are multiple alternative 1D models being evaluated for the next CyberShake run.
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== Z1.0 and Z2.5 Values ==
  
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Below are plots averaging each CVM (CVM-S4, CVM-S4.26, and CVM-H 11.9.1 with GTL) over the 286 stations included within the last CyberShake 13.4 study.
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The Z1.0 depth is 22.5 meters.<br />
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The Z2.5 depth is 3500 meters.
  
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=== CVM-S ===
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== Numerical Description of 1D model used in CyberShake ==
  
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[http://hypocenter.usc.edu/research/plots/1dcybershake/plot_CVM-S_Vp_avg.pdf Vp average plot] <br />
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This is the configuration file that was used in CyberShake 14.2 (the "BBP 1D model").
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[http://hypocenter.usc.edu/research/plots/1dcybershake/plot_CVM-S_Vs_avg.pdf Vs average plot] <br />
 
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[http://hypocenter.usc.edu/research/plots/1dcybershake/plot_CVM-S_Rho_avg.pdf Rho average plot]
 
  
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=== CVM-S4.26 ===
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<pre>
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*Layer Number - Depth to Bottom of Layer (km) - Layer Thickness (km) - Vp (km/s) - Vs(km/s) - rho() - Qp - Qs
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[http://hypocenter.usc.edu/research/plots/1dcybershake/plot_CVM-S4.26_Vp_avg.pdf Vp average plot] <br />
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1) 0.002  0.0020  1.7000  0.4500  2.0000    45.00    22.50
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[http://hypocenter.usc.edu/research/plots/1dcybershake/plot_CVM-S4.26_Vs_avg.pdf Vs average plot] <br />
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2) 0.006  0.0040  1.8000  0.6500  2.1000    65.00    32.50
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[http://hypocenter.usc.edu/research/plots/1dcybershake/plot_CVM-S4.26_Rho_avg.pdf Rho average plot]
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3) 0.012  0.0060  1.8000  0.8500  2.1000    85.00    42.50
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4) 0.020  0.0080  1.9000  0.9500  2.1000    95.00    47.50
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=== CVM-H 11.9.1 with GTL ===
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5) 0.030  0.0100  2.0000  1.1500  2.2000  115.00    57.50
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6) 0.100  0.0700  2.4000  1.2000  2.2000  120.00    60.00
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[http://hypocenter.usc.edu/research/plots/1dcybershake/plot_CVM-H%2011.9.1%20with%20GTL_Vp_avg.pdf Vp average plot] <br />
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7) 0.300  0.2000  2.8000  1.4000  2.3000  140.00    70.00
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[http://hypocenter.usc.edu/research/plots/1dcybershake/plot_CVM-H%2011.9.1%20with%20GTL_Vs_avg.pdf Vs average plot] <br />
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8) 0.500  0.2000  3.1000  1.6000  2.4000  160.00    80.00
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[http://hypocenter.usc.edu/research/plots/1dcybershake/plot_CVM-H%2011.9.1%20with%20GTL_Rho_avg.pdf Rho average plot]
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9) 0.700  0.2000  3.4000  1.8000  2.4500  180.00    90.00
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10) 1.000  0.3000  3.7000  2.1000  2.5000  210.00  105.00
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[[file:plot_CVM-S_Vs_avg.png|250px|CVM-S4]]
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11) 3.000  2.0000  4.4000  2.4000  2.6000  240.00  120.00
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[[file:plot_CVM-S4.26_Vs_avg.png|250px|CVM-S4.26]]
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12) 5.000  2.0000  5.1000  2.8000  2.7000  280.00  140.00
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[[file:plot_CVM-H 11.9.1 with GTL_Vs_avg.png|250px|CVM-H]]
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13) 6.000  1.0000  5.6000  3.1500  2.7500  315.00  157.50
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14) 11.000  5.0000  6.1500  3.6000  2.8250  360.00  180.00
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=== BBP 1D vs. SCEC 1D ===
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15) 16.000  5.0000  6.3200  3.6500  2.8500  365.00  182.50
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16) 21.000  5.0000  6.5500  3.7000  2.9000  370.00  185.00
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[http://hypocenter.usc.edu/research/plots/1dcybershake/1Dcomp_Vp.pdf Vp plot] <br />
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17) 30.000  9.0000  6.8000  3.8000  2.9500  380.00  190.00
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[http://hypocenter.usc.edu/research/plots/1dcybershake/1Dcomp_Vs.pdf Vs plot] <br />
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18) 31.000  1.0000  7.8000  4.5000  3.2000  450.00  225.00
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[http://hypocenter.usc.edu/research/plots/1dcybershake/1Dcomp_Rho.pdf Rho plot]
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19) 1030.000  999.0000  7.8000  4.5000  3.2000  450.00  225.00
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</pre>
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=== SCEC 1D ===
 
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[[file:Plot_SCEC1D.png|600px|SCEC 1D]]
 
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=== BBP 1D ===
 
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[[file:Plot_BBP1D.png|600px|BBP 1D]]
 
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=== SCEC 1D vs CVM-S ===
 
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[[file:Plot_SCEC1D_CVM-S_Vp_comp.png|600px|SCEC 1D vs CVM-S Average Vp]]
 
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[[file:Plot_SCEC1D_CVM-S_Vs_comp.png|600px|SCEC 1D vs CVM-S Average Vs]]
 
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=== BBP 1D vs CVM-S ===
 
  
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[[file:Plot_BBP1D_CVM-S_Vp_comp.png|600px|BBP 1D vs CVM-S Average Vp]]
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== Related Entries ==
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[[file:Plot_BBP1D_CVM-S_Vs_comp.png|600px|BBP 1D vs CVM-S Average Vs]]
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*[[1D Model Development]] Additional details on the various 1D models that were considered
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*[[UCVM]]

Latest revision as of 23:35, 23 March 2017

The following plots show a 1D velocity model that we will use for our CyberShake 14.2 Production run. This is a layer model. We will linearly interpolate the layers with this rule: Vp,Vs, and rho values are linearly interpolated between layer n to n+1. We decided to linearly interpolate this model to avoid issues with the step function and to more closely match the average.

Linearly Interpolated BBP 1D model with 1km Moho Velocity Profiles

Below are plots showing Vp, Vs, and rho from the selected 1D model. These layers were linearly interpolated to avoid reflection issues.

Linearly Interpolated Broadband Platform 1D model with 1km Moho to 60km Depth Linearly Interpolated Broadband Platform 1D model to 5000m Depth
Plotbbp1dmoho.png Bbp5k.png

Linearly Interpolated BBP 1D model with 1km Moho Overlay Plots

Below are plots showing 1D profiles extracted from CVM-S4 for the 386 CyberShake sites in the study, with the selected 1D model plotted on top of this collection of profiles.

Bbp1d cvms comp vp.png Bbp1d cvms comp vs.png

Z1.0 and Z2.5 Values

The Z1.0 depth is 22.5 meters.
The Z2.5 depth is 3500 meters.

Numerical Description of 1D model used in CyberShake

This is the configuration file that was used in CyberShake 14.2 (the "BBP 1D model"). 

*Layer Number - Depth to Bottom of Layer (km) - Layer Thickness (km) - Vp (km/s) - Vs(km/s) - rho() - Qp - Qs
1) 0.002   0.0020   1.7000   0.4500   2.0000    45.00    22.50
2) 0.006   0.0040   1.8000   0.6500   2.1000    65.00    32.50
3) 0.012   0.0060   1.8000   0.8500   2.1000    85.00    42.50
4) 0.020   0.0080   1.9000   0.9500   2.1000    95.00    47.50
5) 0.030   0.0100   2.0000   1.1500   2.2000   115.00    57.50
6) 0.100   0.0700   2.4000   1.2000   2.2000   120.00    60.00
7) 0.300   0.2000   2.8000   1.4000   2.3000   140.00    70.00
8) 0.500   0.2000   3.1000   1.6000   2.4000   160.00    80.00
9) 0.700   0.2000   3.4000   1.8000   2.4500   180.00    90.00
10) 1.000   0.3000   3.7000   2.1000   2.5000   210.00   105.00
11) 3.000   2.0000   4.4000   2.4000   2.6000   240.00   120.00
12) 5.000   2.0000   5.1000   2.8000   2.7000   280.00   140.00
13) 6.000   1.0000   5.6000   3.1500   2.7500   315.00   157.50
14) 11.000   5.0000   6.1500   3.6000   2.8250   360.00   180.00
15) 16.000   5.0000   6.3200   3.6500   2.8500   365.00   182.50
16) 21.000   5.0000   6.5500   3.7000   2.9000   370.00   185.00
17) 30.000   9.0000   6.8000   3.8000   2.9500   380.00   190.00
18) 31.000   1.0000   7.8000   4.5000   3.2000   450.00   225.00
19) 1030.000   999.0000   7.8000   4.5000   3.2000   450.00   225.00

Related Entries

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