Difference between revisions of "UCVM BBP1D Model Check"

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== Introduction ==
 
−
 
 
We are verifying the included Broadband 1D model within UCVM. The currently included version is intended to be an interpolated version of the LA Basin velocity model used in the June 2013 validation. This model has an added 1km moho transition.
 
We are verifying the included Broadband 1D model within UCVM. The currently included version is intended to be an interpolated version of the LA Basin velocity model used in the June 2013 validation. This model has an added 1km moho transition.
  
−
=== What Is Included In UCVM ===
+
== What Is Included In UCVM ==
 +
The following model is included within UCVM. This is the model that was used in the CyberShake run.
  
−
The following model is included within UCVM.
+
[[File:Bbp1d_moho_interpolated.png|right|thumbnail|150px]]
−
 
 
−
[[File:Bbp1d_moho_interpolated.png|left|400px]]
 
 
<pre>
 
<pre>
 
# Broadband Platform 1D Velocity Model Configuration
 
# Broadband Platform 1D Velocity Model Configuration
Line 47: Line 44:
 
999.0000        7.8000  4.5000  3.2000  450.0000        225.0000
 
999.0000        7.8000  4.5000  3.2000  450.0000        225.0000
 
</pre>
 
</pre>
 +
 +
== BBP1D Northridge Layer Model layers and depths ==
 +
<pre>
 +
Layer thickness in meters: 2.00
 +
Layer ends at depth: 2.00
 +
Layer thickness in meters: 4.00
 +
Layer ends at depth: 6.00
 +
Layer thickness in meters: 6.00
 +
Layer ends at depth: 12.00
 +
Layer thickness in meters: 8.00
 +
Layer ends at depth: 20.00
 +
Layer thickness in meters: 10.00
 +
Layer ends at depth: 30.00
 +
Layer thickness in meters: 70.00
 +
Layer ends at depth: 100.00
 +
Layer thickness in meters: 200.00
 +
Layer ends at depth: 300.00
 +
Layer thickness in meters: 200.00
 +
Layer ends at depth: 500.00
 +
Layer thickness in meters: 200.00
 +
Layer ends at depth: 700.00
 +
Layer thickness in meters: 300.00
 +
Layer ends at depth: 1000.00
 +
Layer thickness in meters: 2000.00
 +
Layer ends at depth: 3000.00
 +
Layer thickness in meters: 2000.00
 +
Layer ends at depth: 5000.00
 +
Layer thickness in meters: 1000.00
 +
Layer ends at depth: 6000.00
 +
Layer thickness in meters: 5000.00
 +
Layer ends at depth: 11000.00
 +
Layer thickness in meters: 5000.00
 +
Layer ends at depth: 16000.00
 +
Layer thickness in meters: 5000.00
 +
Layer ends at depth: 21000.00
 +
Layer thickness in meters: 9000.00
 +
Layer ends at depth: 30000.00
 +
Layer thickness in meters: 1000.00
 +
Layer ends at depth: 31000.00
 +
Layer thickness in meters: 999000.00
 +
Layer ends at depth: 1030000.00
 +
</pre>
 +
 +
== Linearly Interpolated 1D Model Without The Moho Transition ==
 +
 +
This was the version originally proposed for the CyberShake 1D run. It is an interpolated version of the BBP 1D LA Basin model. This model was agreed upon, however there were concerns about there being a lack of a moho which was added into the final version that was used and included within UCVM.
 +
 +
[[File:Bbp1d_no_moho_interpolated.png|right|thumbnail|150px]]
 +
 +
<pre>
 +
# Broadband Platform 1D Velocity Model Configuration
 +
#
 +
# Reads in a 1D model in the Broadband Platform format.
 +
#
 +
 +
# Name of model.
 +
version=Los Angeles Basin Broadband Model without 1km Moho Transition
 +
 +
# Number of layers.
 +
num_z=19
 +
 +
# Interpolation method.
 +
interpolation=linear
 +
 +
# Start of model.
 +
 +
--MODEL--
 +
</pre>
 +
# 0.0020          1.7000  0.4500  2.0000  45.0000        22.5000
 +
# 0.0040          1.8000  0.6500  2.1000  65.0000        32.5000
 +
# 0.0060          1.8000  0.8500  2.1000  85.0000        42.5000
 +
# 0.0080          1.9000  0.9500  2.1000  95.0000        47.5000
 +
# 0.0100          2.0000  1.1500  2.2000  115.0000        57.5000
 +
# 0.0700          2.4000  1.2000  2.2000  120.0000        60.0000
 +
# 0.2000          2.8000  1.4000  2.3000  140.0000        70.0000
 +
# 0.2000          3.1000  1.6000  2.4000  160.0000        80.0000
 +
# 0.2000          3.4000  1.8000  2.4500  180.0000        90.0000
 +
# 0.3000          3.7000  2.1000  2.5000  210.0000        105.0000
 +
# 2.0000          4.4000  2.4000  2.6000  240.0000        120.0000
 +
# 2.0000          5.1000  2.8000  2.7000  280.0000        140.0000
 +
# 1.0000          5.6000  3.1500  2.7500  315.0000        157.5000
 +
# 5.0000          6.1500  3.6000  2.8250  360.0000        180.0000
 +
# 5.0000          6.3200  3.6500  2.8500  365.0000        182.5000
 +
# 5.0000          6.5500  3.7000  2.9000  370.0000        185.0000
 +
# 10.0000        6.8000  3.8000  2.9500  380.0000        190.0000
 +
# 999.0000        7.8000  4.5000  3.2000  450.0000        225.0000
 +
 +
 +
== Original Staircase Model ==
 +
 +
The original LA Basin model is a staircase model (meaning no interpolation). Interpolation was favored for the 3D wave propagation simulation.
 +
 +
[[File:Bbp1d_no_moho_no_interpolation.png|right|thumbnail|150px]]
 +
 +
<pre>
 +
# Broadband Platform 1D Velocity Model Configuration
 +
#
 +
# Reads in a 1D model in the Broadband Platform format.
 +
#
 +
 +
# Name of model.
 +
version=Los Angeles Basin Broadband Model without 1km Moho Transition No Interpolation
 +
 +
# Number of layers.
 +
num_z=19
 +
 +
# Interpolation method.
 +
interpolation=none
 +
 +
# Start of model.
 +
 +
--MODEL--
 +
 +
0.0020          1.7000  0.4500  2.0000  45.0000        22.5000
 +
0.0040          1.8000  0.6500  2.1000  65.0000        32.5000
 +
0.0060          1.8000  0.8500  2.1000  85.0000        42.5000
 +
0.0080          1.9000  0.9500  2.1000  95.0000        47.5000
 +
0.0100          2.0000  1.1500  2.2000  115.0000        57.5000
 +
0.0700          2.4000  1.2000  2.2000  120.0000        60.0000
 +
0.2000          2.8000  1.4000  2.3000  140.0000        70.0000
 +
0.2000          3.1000  1.6000  2.4000  160.0000        80.0000
 +
0.2000          3.4000  1.8000  2.4500  180.0000        90.0000
 +
0.3000          3.7000  2.1000  2.5000  210.0000        105.0000
 +
2.0000          4.4000  2.4000  2.6000  240.0000        120.0000
 +
2.0000          5.1000  2.8000  2.7000  280.0000        140.0000
 +
1.0000          5.6000  3.1500  2.7500  315.0000        157.5000
 +
5.0000          6.1500  3.6000  2.8250  360.0000        180.0000
 +
5.0000          6.3200  3.6500  2.8500  365.0000        182.5000
 +
5.0000          6.5500  3.7000  2.9000  370.0000        185.0000
 +
10.0000        6.8000  3.8000  2.9500  380.0000        190.0000
 +
999.0000        7.8000  4.5000  3.2000  450.0000        225.0000
 +
</pre>
 +
 +
== BBP 1D Model Unmodified ==
 +
The model below is defined in Table 3 of this paper:
 +
Bulletin of the Seismological Society of America, Vol. 100, No. 5A, pp. 2095–2123, October 2010, doi: 10.1785/0120100057
 +
Broadband Ground-Motion Simulation Using a Hybrid Approach
 +
by Robert W. Graves* and Arben Pitarka
 +
 +
<pre>
 +
Model Layer Thickness (km) P velocity (km/s) S velocity (km/s) Density (g/cm^3) QP QS
 +
 +
LA (Los Angeles Area)
 +
 +
        1 0.002 1.7 0.45 2 45 22.5
 +
2 0.004 1.8 0.65 2.1 65 32.5
 +
3 0.006 1.8 0.85 2.1 85 42.5
 +
4 0.008 1.9 0.95 2.1 95 47.5
 +
5 0.01 2 1.15 2.2 115 57.5
 +
6 0.07 2.4 1.2 2.2 120 60
 +
7 0.2 2.8 1.4 2.3 140 70
 +
8 0.2 3.1 1.6 2.4 160 80
 +
9 0.2 3.4 1.8 2.45 180 90
 +
10 0.3 3.7 2.1 2.5 210 105
 +
11 2 4.4 2.4 2.6 240 120
 +
12 2 5.1 2.8 2.7 280 140
 +
13 1 5.6 3.15 2.75 315 157.5
 +
14 5 6.15 3.6 2.825 360 180
 +
15 5 6.32 3.65 2.85 365 182.5
 +
16 5 6.55 3.7 2.9 370 185
 +
17 10 6.8 3.8 2.95 380 190
 +
18 999 7.8 4.5 3.2 450 225
 +
</pre>
 +
 +
== Related Entries ==
 +
* [[1D_Model_Development]]
 +
* [[CyberShake_1D_Model]]
 +
* [[UCVM]]

Latest revision as of 20:38, 5 March 2017

We are verifying the included Broadband 1D model within UCVM. The currently included version is intended to be an interpolated version of the LA Basin velocity model used in the June 2013 validation. This model has an added 1km moho transition.

What Is Included In UCVM

The following model is included within UCVM. This is the model that was used in the CyberShake run.

Bbp1d moho interpolated.png 
# Broadband Platform 1D Velocity Model Configuration
#
# Reads in a 1D model in the Broadband Platform format.
#

# Name of model.
version=Los Angeles Basin Broadband Model with 1km Moho Transition

# Number of layers.
num_z=19

# Interpolation method.
interpolation=linear

# Start of model.

--MODEL--

0.0020          1.7000  0.4500  2.0000  45.0000         22.5000
0.0040          1.8000  0.6500  2.1000  65.0000         32.5000
0.0060          1.8000  0.8500  2.1000  85.0000         42.5000
0.0080          1.9000  0.9500  2.1000  95.0000         47.5000
0.0100          2.0000  1.1500  2.2000  115.0000        57.5000
0.0700          2.4000  1.2000  2.2000  120.0000        60.0000
0.2000          2.8000  1.4000  2.3000  140.0000        70.0000
0.2000          3.1000  1.6000  2.4000  160.0000        80.0000
0.2000          3.4000  1.8000  2.4500  180.0000        90.0000
0.3000          3.7000  2.1000  2.5000  210.0000        105.0000
2.0000          4.4000  2.4000  2.6000  240.0000        120.0000
2.0000          5.1000  2.8000  2.7000  280.0000        140.0000
1.0000          5.6000  3.1500  2.7500  315.0000        157.5000
5.0000          6.1500  3.6000  2.8250  360.0000        180.0000
5.0000          6.3200  3.6500  2.8500  365.0000        182.5000
5.0000          6.5500  3.7000  2.9000  370.0000        185.0000
9.0000          6.8000  3.8000  2.9500  380.0000        190.0000
1.0000          7.8000  4.5000  3.2000  450.0000        225.0000
999.0000        7.8000  4.5000  3.2000  450.0000        225.0000

BBP1D Northridge Layer Model layers and depths

Layer thickness in meters: 2.00
Layer ends at depth: 2.00
Layer thickness in meters: 4.00
Layer ends at depth: 6.00
Layer thickness in meters: 6.00
Layer ends at depth: 12.00
Layer thickness in meters: 8.00
Layer ends at depth: 20.00
Layer thickness in meters: 10.00
Layer ends at depth: 30.00
Layer thickness in meters: 70.00
Layer ends at depth: 100.00
Layer thickness in meters: 200.00
Layer ends at depth: 300.00
Layer thickness in meters: 200.00
Layer ends at depth: 500.00
Layer thickness in meters: 200.00
Layer ends at depth: 700.00
Layer thickness in meters: 300.00
Layer ends at depth: 1000.00
Layer thickness in meters: 2000.00
Layer ends at depth: 3000.00
Layer thickness in meters: 2000.00
Layer ends at depth: 5000.00
Layer thickness in meters: 1000.00
Layer ends at depth: 6000.00
Layer thickness in meters: 5000.00
Layer ends at depth: 11000.00
Layer thickness in meters: 5000.00
Layer ends at depth: 16000.00
Layer thickness in meters: 5000.00
Layer ends at depth: 21000.00
Layer thickness in meters: 9000.00
Layer ends at depth: 30000.00
Layer thickness in meters: 1000.00
Layer ends at depth: 31000.00
Layer thickness in meters: 999000.00
Layer ends at depth: 1030000.00

Linearly Interpolated 1D Model Without The Moho Transition

This was the version originally proposed for the CyberShake 1D run. It is an interpolated version of the BBP 1D LA Basin model. This model was agreed upon, however there were concerns about there being a lack of a moho which was added into the final version that was used and included within UCVM.

Bbp1d no moho interpolated.png 
# Broadband Platform 1D Velocity Model Configuration
#
# Reads in a 1D model in the Broadband Platform format.
#

# Name of model.
version=Los Angeles Basin Broadband Model without 1km Moho Transition

# Number of layers.
num_z=19

# Interpolation method.
interpolation=linear

# Start of model.

--MODEL--
  1. 0.0020 1.7000 0.4500 2.0000 45.0000 22.5000
  2. 0.0040 1.8000 0.6500 2.1000 65.0000 32.5000
  3. 0.0060 1.8000 0.8500 2.1000 85.0000 42.5000
  4. 0.0080 1.9000 0.9500 2.1000 95.0000 47.5000
  5. 0.0100 2.0000 1.1500 2.2000 115.0000 57.5000
  6. 0.0700 2.4000 1.2000 2.2000 120.0000 60.0000
  7. 0.2000 2.8000 1.4000 2.3000 140.0000 70.0000
  8. 0.2000 3.1000 1.6000 2.4000 160.0000 80.0000
  9. 0.2000 3.4000 1.8000 2.4500 180.0000 90.0000
  10. 0.3000 3.7000 2.1000 2.5000 210.0000 105.0000
  11. 2.0000 4.4000 2.4000 2.6000 240.0000 120.0000
  12. 2.0000 5.1000 2.8000 2.7000 280.0000 140.0000
  13. 1.0000 5.6000 3.1500 2.7500 315.0000 157.5000
  14. 5.0000 6.1500 3.6000 2.8250 360.0000 180.0000
  15. 5.0000 6.3200 3.6500 2.8500 365.0000 182.5000
  16. 5.0000 6.5500 3.7000 2.9000 370.0000 185.0000
  17. 10.0000 6.8000 3.8000 2.9500 380.0000 190.0000
  18. 999.0000 7.8000 4.5000 3.2000 450.0000 225.0000


Original Staircase Model

The original LA Basin model is a staircase model (meaning no interpolation). Interpolation was favored for the 3D wave propagation simulation.

Bbp1d no moho no interpolation.png 
# Broadband Platform 1D Velocity Model Configuration
#
# Reads in a 1D model in the Broadband Platform format.
#

# Name of model.
version=Los Angeles Basin Broadband Model without 1km Moho Transition No Interpolation

# Number of layers.
num_z=19

# Interpolation method.
interpolation=none

# Start of model.

--MODEL--

0.0020          1.7000  0.4500  2.0000  45.0000         22.5000
0.0040          1.8000  0.6500  2.1000  65.0000         32.5000
0.0060          1.8000  0.8500  2.1000  85.0000         42.5000
0.0080          1.9000  0.9500  2.1000  95.0000         47.5000
0.0100          2.0000  1.1500  2.2000  115.0000        57.5000
0.0700          2.4000  1.2000  2.2000  120.0000        60.0000
0.2000          2.8000  1.4000  2.3000  140.0000        70.0000
0.2000          3.1000  1.6000  2.4000  160.0000        80.0000
0.2000          3.4000  1.8000  2.4500  180.0000        90.0000
0.3000          3.7000  2.1000  2.5000  210.0000        105.0000
2.0000          4.4000  2.4000  2.6000  240.0000        120.0000
2.0000          5.1000  2.8000  2.7000  280.0000        140.0000
1.0000          5.6000  3.1500  2.7500  315.0000        157.5000
5.0000          6.1500  3.6000  2.8250  360.0000        180.0000
5.0000          6.3200  3.6500  2.8500  365.0000        182.5000
5.0000          6.5500  3.7000  2.9000  370.0000        185.0000
10.0000         6.8000  3.8000  2.9500  380.0000        190.0000
999.0000        7.8000  4.5000  3.2000  450.0000        225.0000

BBP 1D Model Unmodified

The model below is defined in Table 3 of this paper: Bulletin of the Seismological Society of America, Vol. 100, No. 5A, pp. 2095–2123, October 2010, doi: 10.1785/0120100057 Broadband Ground-Motion Simulation Using a Hybrid Approach by Robert W. Graves* and Arben Pitarka 

Model	Layer	Thickness (km)	P velocity (km/s)	S velocity (km/s)	Density (g/cm^3)	QP	QS

LA (Los Angeles Area)	

        1	0.002	1.7	0.45	2	45	22.5
	2	0.004	1.8	0.65	2.1	65	32.5
	3	0.006	1.8	0.85	2.1	85	42.5
	4	0.008	1.9	0.95	2.1	95	47.5
	5	0.01	2	1.15	2.2	115	57.5
	6	0.07	2.4	1.2	2.2	120	60
	7	0.2	2.8	1.4	2.3	140	70
	8	0.2	3.1	1.6	2.4	160	80
	9	0.2	3.4	1.8	2.45	180	90
	10	0.3	3.7	2.1	2.5	210	105
	11	2	4.4	2.4	2.6	240	120
	12	2	5.1	2.8	2.7	280	140
	13	1	5.6	3.15	2.75	315	157.5
	14	5	6.15	3.6	2.825	360	180
	15	5	6.32	3.65	2.85	365	182.5
	16	5	6.55	3.7	2.9	370	185
	17	10	6.8	3.8	2.95	380	190
	18	999	7.8	4.5	3.2	450	225

Related Entries

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