Difference between revisions of "Study 16.9 Velocity Plots"

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Line 2: Line 2:
  
 
s001 is one of the overlapping sites, near Ventura.  The volume is 2400 x 4400 x 288 grid points (420 x 770 x 50.4 km).
 
s001 is one of the overlapping sites, near Ventura.  The volume is 2400 x 4400 x 288 grid points (420 x 770 x 50.4 km).
 +
 +
These plots were constructed using CCA, CVM-S4.26, and the 1D model.
  
 
=== Horizontal Plots ===
 
=== Horizontal Plots ===
  
 
{|
 
{|
 +
! No smoothing: CCA06 and CVM-S4.26
 
| [[File:s001_CCA_depth0_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=0 km]]
 
| [[File:s001_CCA_depth0_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=0 km]]
 
| [[File:s001_CCA_depth6_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=1.05 km]]
 
| [[File:s001_CCA_depth6_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=1.05 km]]
Line 11: Line 14:
 
| [[File:s001_CCA_depth143_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=25.025 km]]
 
| [[File:s001_CCA_depth143_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=25.025 km]]
 
| [[File:s001_CCA_depth287_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=50.225 km]]
 
| [[File:s001_CCA_depth287_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=50.225 km]]
 +
|-
 +
! Smoothing: CCA06, USGS Bay Area, and CVM-S4.26
 +
| [[File:s001_CCA_depth0_horiz_smoothed_slice.png|thumb|300px|Horizontal cross-section, depth=0 km]]
 +
| [[File:s001_CCA_depth6_horiz_smoothed_slice.png|thumb|300px|Horizontal cross-section, depth=1.05 km]]
 +
| [[File:s001_CCA_depth57_horiz_smoothed_slice.png|thumb|300px|Horizontal cross-section, depth=9.975 km]]
 +
| [[File:s001_CCA_depth143_horiz_smoothed_slice.png|thumb|300px|Horizontal cross-section, depth=25.025 km]]
 +
| [[File:s001_CCA_depth287_horiz_smoothed_slice.png|thumb|300px|Horizontal cross-section, depth=50.225 km]]
 
|}
 
|}
  
Line 24: Line 34:
  
 
{|
 
{|
−
| [[File:s001_CCA_vert_slice_y_50.png|thumb|300px|Vertical cross-section, NW/SE, 8.75 km from SW boundary]]
+
! No smoothing: CCA06 and CVM-S4.26
−
| [[File:s001_CCA_vert_slice_y_1200.png|thumb|300px|Vertical cross-section, NW/SE, 210 km from SW boundary]]
+
| [[File:s001_CCA_vert_slice_y_50.png|thumb|300px|50 Y vertical cross-section, NW/SE, 8.75 km from SW boundary]]
−
| [[File:s001_CCA_vert_slice_y_2350.png|thumb|300px|Vertical cross-section, NW/SE, 411.25 km from SW boundary]]
+
| [[File:s001_CCA_vert_slice_y_1200.png|thumb|300px|1200 Y vertical cross-section, NW/SE, 210 km from SW boundary]]
 +
| [[File:s001_CCA_vert_slice_y_2350.png|thumb|300px|2350 Y vertical cross-section, NW/SE, 411.25 km from SW boundary]]
 +
|-
 +
! Smoothing: CCA06, USGS Bay Area, and CVM-S4.26
 +
| [[File:s001_CCA_vert_smoothed_slice_y_50.png|thumb|300px|50 Y vertical cross-section, NW/SE, 8.75 km from SW boundary]]
 +
| [[File:s001_CCA_vert_smoothed_slice_y_1200.png|thumb|300px|1200 Y vertical cross-section, NW/SE, 210 km from SW boundary]]
 +
| [[File:s001_CCA_vert_smoothed_slice_y_2350.png|thumb|300px|2350 Y vertical cross-section, NW/SE, 411.25 km from SW boundary]]
 
|}
 
|}
  
Line 32: Line 48:
  
 
{|
 
{|
−
| [[File:s001_CCA_vert_slice_x_475.png|thumb|300px|Vertical cross-section, SW/NE, 83.125 km from NW boundary]]
+
! No smoothing: : CCA06 and CVM-S4.26
−
| [[File:s001_CCA_vert_slice_x_1575.png|thumb|300px|Vertical cross-section, SW/NE, 275.625 km from NW boundary]]
+
| [[File:s001_CCA_vert_slice_x_475.png|thumb|300px|475 X vertical cross-section, SW/NE, 83.125 km from NW boundary]]
−
| [[File:s001_CCA_vert_slice_x_2725.png|thumb|300px|Vertical cross-section, SW/NE, 476.875 km from NW boundary]]
+
| [[File:s001_CCA_vert_slice_x_1575.png|thumb|300px|1575 X vertical cross-section, SW/NE, 275.625 km from NW boundary]]
−
| [[File:s001_CCA_vert_slice_x_3875.png|thumb|300px|Vertical cross-section, SW/NE, 678.125 km from NW boundary]]
+
| [[File:s001_CCA_vert_slice_x_2725.png|thumb|300px|2725 X vertical cross-section, SW/NE, 476.875 km from NW boundary]]
 +
| [[File:s001_CCA_vert_slice_x_3875.png|thumb|300px|3875 X vertical cross-section, SW/NE, 678.125 km from NW boundary]]
 +
|-
 +
! Smoothing: CCA06, USGS Bay Area, and CVM-S4.26
 +
| [[File:s001_CCA_vert_smoothed_slice_x_475.png|thumb|300px|475 X vertical cross-section, SW/NE, 83.125 km from NW boundary]]
 +
| [[File:s001_CCA_vert_smoothed_slice_x_1575.png|thumb|300px|1575 X vertical cross-section, SW/NE, 275.625 km from NW boundary]]
 +
| [[File:s001_CCA_vert_smoothed_slice_x_2725.png|thumb|300px|2725 X vertical cross-section, SW/NE, 476.875 km from NW boundary]]
 +
| [[File:s001_CCA_vert_smoothed_slice_x_3875.png|thumb|300px|3875 X vertical cross-section, SW/NE, 678.125 km from NW boundary]]
 +
|}
 +
 
 +
=== Hazard Curves ===
 +
 
 +
Hazard curves comparing smoothed velocity model (in blue) and unsmoothed (in black) results.
 +
 
 +
{|
 +
| [[File:s001_4744_v_4729_2secSA.png|thumb|400px|Smoothed velocity model (blue) vs unsmoothed (black)]]
 +
| [[File:s001_4744_v_4729_3secSA.png|thumb|400px|Smoothed velocity model (blue) vs unsmoothed (black)]]
 +
| [[File:s001_4744_v_4729_5secSA.png|thumb|400px|Smoothed velocity model (blue) vs unsmoothed (black)]]
 +
| [[File:s001_4744_v_4729_10secSA.png|thumb|400px|Smoothed velocity model (blue) vs unsmoothed (black)]]
 
|}
 
|}
  
Line 41: Line 75:
  
 
s1252 is a site in the mountains near the San Andreas and just far enough north to include northern San Andreas events within the 200 km cutoff.
 
s1252 is a site in the mountains near the San Andreas and just far enough north to include northern San Andreas events within the 200 km cutoff.
 +
 +
These plots were generated using CCA, USGS Bay Area, and CVM-S4.26.  We generated plots both without and with smoothing.
  
 
=== Horizontal Plots ===
 
=== Horizontal Plots ===
  
 
{|
 
{|
 +
! No smoothing
 
| [[File:s1252_CCA_depth0_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=0 km]]
 
| [[File:s1252_CCA_depth0_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=0 km]]
 
| [[File:s1252_CCA_depth6_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=1.05 km]]
 
| [[File:s1252_CCA_depth6_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=1.05 km]]
Line 50: Line 87:
 
| [[File:s1252_CCA_depth143_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=25.025 km]]
 
| [[File:s1252_CCA_depth143_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=25.025 km]]
 
| [[File:s1252_CCA_depth287_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=50.225 km]]
 
| [[File:s1252_CCA_depth287_horiz_slice.png|thumb|300px|Horizontal cross-section, depth=50.225 km]]
 +
|-
 +
! Smoothing
 +
| [[File:s1252_CCA_depth0_horiz_slice_smoothed.png|thumb|300px|Horizontal cross-section, depth=0 km]]
 +
| [[File:s1252_CCA_depth6_horiz_slice_smoothed.png|thumb|300px|Horizontal cross-section, depth=1.05 km]]
 +
| [[File:s1252_CCA_depth57_horiz_slice_smoothed.png|thumb|300px|Horizontal cross-section, depth=9.975 km]]
 +
| [[File:s1252_CCA_depth143_horiz_slice_smoothed.png|thumb|300px|Horizontal cross-section, depth=25.025 km]]
 +
| [[File:s1252_CCA_depth287_horiz_slice_smoothed.png|thumb|300px|Horizontal cross-section, depth=50.225 km]]
 +
|}
 +
 +
=== Cutoff Plots ===
 +
 +
To verify that the cutoffs are being correctly applied (Vs=900 m/s, Vp=rho=3060), we created the following plots.
 +
{|
 +
| [[File:s1252_CCA_depth0_horiz_slice_vp.png|thumb|300px|Vp, horizontal cross-section, depth=0 km]]
 +
| [[File:s1252_CCA_depth0_horiz_slice_alt_colors.png|thumb|300px|Vs, horizontal cross-section, depth=0 km]]
 +
| [[File:s1252_CCA_depth0_horiz_slice_rho.png|thumb|300px|rho, horizontal cross-section, depth=0 km]]
 +
|}
 +
 +
Since rho is getting washed out, we produced the below series of plots at a variety of depths with a very low cutoff (Vs=100 m/s, Vp=rho=340), to see what the models look like without the above cutoffs.
 +
 +
{|
 +
!
 +
! Vp
 +
! Vs
 +
! Density
 +
|-
 +
! 0 km depth
 +
| [[File:s1252_CCA06_depth0_nocutoff_horiz_slice_vp.png|thumb|400px|Vp, horizontal cross-section, depth=0 km]]
 +
| [[File:s1252_CCA06_depth0_nocutoff_horiz_slice_vs.png|thumb|400px|Vs, horizontal cross-section, depth=0 km]]
 +
| [[File:s1252_CCA06_depth0_nocutoff_horiz_slice_rho.png|thumb|400px|Rho, horizontal cross-section, depth=0 km]]
 +
|-
 +
! 1.05 km depth
 +
| [[File:s1252_CCA06_depth6_nocutoff_horiz_slice_vp.png|thumb|400px|Vp, horizontal cross-section, depth=1.05 km]]
 +
| [[File:s1252_CCA06_depth6_nocutoff_horiz_slice_vs.png|thumb|400px|Vs, horizontal cross-section, depth=1.05 km]]
 +
| [[File:s1252_CCA06_depth6_nocutoff_horiz_slice_rho.png|thumb|400px|Rho, horizontal cross-section, depth=1.05 km]]
 +
|-
 +
! 9.975 km depth
 +
| [[File:s1252_CCA06_depth57_nocutoff_horiz_slice_vp.png|thumb|400px|Vp, horizontal cross-section, depth=9.975 km]]
 +
| [[File:s1252_CCA06_depth57_nocutoff_horiz_slice_vs.png|thumb|400px|Vs, horizontal cross-section, depth=9.975 km]]
 +
| [[File:s1252_CCA06_depth57_nocutoff_horiz_slice_rho.png|thumb|400px|Rho, horizontal cross-section, depth=9.975 km]]
 +
|-
 +
! 25.025 km depth
 +
| [[File:s1252_CCA06_depth143_nocutoff_horiz_slice_vp.png|thumb|400px|Vp, horizontal cross-section, depth=25.025 km]]
 +
| [[File:s1252_CCA06_depth143_nocutoff_horiz_slice_vs.png|thumb|400px|Vs, horizontal cross-section, depth=25.025 km]]
 +
| [[File:s1252_CCA06_depth143_nocutoff_horiz_slice_rho.png|thumb|400px|Rho, horizontal cross-section, depth=25.025 km]]
 +
|-
 +
! 50.225 km depth
 +
| [[File:s1252_CCA06_depth287_nocutoff_horiz_slice_vp.png|thumb|400px|Vp, horizontal cross-section, depth=50.225 km]]
 +
| [[File:s1252_CCA06_depth287_nocutoff_horiz_slice_vs.png|thumb|400px|Vs, horizontal cross-section, depth=50.225 km]]
 +
| [[File:s1252_CCA06_depth287_nocutoff_horiz_slice_rho.png|thumb|400px|Rho, horizontal cross-section, depth=50.225 km]]
 
|}
 
|}
  
 
=== Vertical Plots ===
 
=== Vertical Plots ===
 +
 +
Here's a plot showing where the cross sections come from:
 +
 +
{|
 +
| [[File:s1252_slices_marked.png|thumb|400px]]
 +
|}
  
 
Cross-sections parallel to the Y (long) axis:
 
Cross-sections parallel to the Y (long) axis:
  
 
{|
 
{|
−
| [[File:s1252_CCA_vert_slice_y_50.png|thumb|300px|Vertical cross-section, NW/SE, 8.75 km from SW boundary]]
+
! No smoothing
−
| [[File:s1252_CCA_vert_slice_y_1200.png|thumb|300px|Vertical cross-section, NW/SE, 210 km from SW boundary]]
+
| [[File:s1252_CCA_vert_slice_y_50.png|thumb|300px|50 Y vertical cross-section, NW/SE, 8.75 km from SW boundary]]
−
| [[File:s1252_CCA_vert_slice_y_2350.png|thumb|300px|Vertical cross-section, NW/SE, 411.25 km from SW boundary]]
+
| [[File:s1252_CCA_vert_slice_y_1200.png|thumb|300px|1200 Y vertical cross-section, NW/SE, 210 km from SW boundary]]
 +
| [[File:s1252_CCA_vert_slice_y_2350.png|thumb|300px|2350 Y vertical cross-section, NW/SE, 411.25 km from SW boundary]]
 +
|-
 +
! Smoothing
 +
| [[File:s1252_CCA_vert_slice_smoothed_y_50.png|thumb|300px|50 Y vertical cross-section, NW/SE, 8.75 km from SW boundary]]
 +
| [[File:s1252_CCA_vert_slice_smoothed_y_1200.png|thumb|300px|1200 Y vertical cross-section, NW/SE, 210 km from SW boundary]]
 +
| [[File:s1252_CCA_vert_slice_smoothed_y_2350.png|thumb|300px|2350 Y vertical cross-section, NW/SE, 411.25 km from SW boundary]]
 
|}
 
|}
  
−
Cross-sections parallel to the X (short) axis:
 
 
Cross-sections parallel to the X (short) axis:
 
Cross-sections parallel to the X (short) axis:
  
 
{|
 
{|
−
| [[File:s1252_CCA_vert_slice_x_445.png|thumb|300px|Vertical cross-section, SW/NE, 83.125 km from NW boundary]]
+
! No smoothing
−
| [[File:s1252_CCA_vert_slice_x_1595.png|thumb|300px|Vertical cross-section, SW/NE, 275.625 km from NW boundary]]
+
| [[File:s1252_CCA_vert_slice_x_445.png|thumb|280px|445 X vertical cross-section, SW/NE, 83.125 km from NW boundary]]
−
| [[File:s1252_CCA_vert_slice_x_2745.png|thumb|300px|Vertical cross-section, SW/NE, 476.875 km from NW boundary]]
+
| [[File:s1252_CCA_vert_slice_x_1595.png|thumb|280px|1595 X vertical cross-section, SW/NE, 275.625 km from NW boundary]]
−
| [[File:s1252_CCA_vert_slice_x_3895.png|thumb|300px|Vertical cross-section, SW/NE, 678.125 km from NW boundary]]
+
| [[File:s1252_CCA_vert_slice_x_2745.png|thumb|280px|2745 X vertical cross-section, SW/NE, 476.875 km from NW boundary]]
−
| [[File:s1252_CCA_vert_slice_x_5045.png|thumb|300px|Vertical cross-section, SW/NE, 678.125 km from NW boundary]]
+
| [[File:s1252_CCA_vert_slice_x_3895.png|thumb|280px|3895 X vertical cross-section, SW/NE, 678.125 km from NW boundary]]
−
| [[File:s1252_CCA_vert_slice_x_6195.png|thumb|300px|Vertical cross-section, SW/NE, 678.125 km from NW boundary]]
+
| [[File:s1252_CCA_vert_slice_x_5045.png|thumb|280px|5045 X vertical cross-section, SW/NE, 678.125 km from NW boundary]]
 +
| [[File:s1252_CCA_vert_slice_x_6195.png|thumb|280px|6195 X vertical cross-section, SW/NE, 678.125 km from NW boundary]]
 +
|-
 +
! Smoothing
 +
| [[File:s1252_CCA_vert_slice_smoothed_x_445.png|thumb|280px|445 X vertical cross-section, SW/NE, 83.125 km from NW boundary]]
 +
| [[File:s1252_CCA_vert_slice_smoothed_x_1595.png|thumb|280px|1595 X vertical cross-section, SW/NE, 275.625 km from NW boundary]]
 +
| [[File:s1252_CCA_vert_slice_smoothed_x_2745.png|thumb|280px|2745 X vertical cross-section, SW/NE, 476.875 km from NW boundary]]
 +
| [[File:s1252_CCA_vert_slice_smoothed_x_3895.png|thumb|280px|3895 X vertical cross-section, SW/NE, 678.125 km from NW boundary]]
 +
| [[File:s1252_CCA_vert_slice_smoothed_x_5045.png|thumb|280px|5045 X vertical cross-section, SW/NE, 678.125 km from NW boundary]]
 +
| [[File:s1252_CCA_vert_slice_smoothed_x_6195.png|thumb|280px|6195 X vertical cross-section, SW/NE, 678.125 km from NW boundary]]
 
|}
 
|}

Latest revision as of 17:52, 23 January 2017

s001

s001 is one of the overlapping sites, near Ventura. The volume is 2400 x 4400 x 288 grid points (420 x 770 x 50.4 km).

These plots were constructed using CCA, CVM-S4.26, and the 1D model.

Horizontal Plots

No smoothing: CCA06 and CVM-S4.26
Horizontal cross-section, depth=0 km
Horizontal cross-section, depth=1.05 km
Horizontal cross-section, depth=9.975 km
Horizontal cross-section, depth=25.025 km
Horizontal cross-section, depth=50.225 km
Smoothing: CCA06, USGS Bay Area, and CVM-S4.26
Horizontal cross-section, depth=0 km
Horizontal cross-section, depth=1.05 km
Horizontal cross-section, depth=9.975 km
Horizontal cross-section, depth=25.025 km
Horizontal cross-section, depth=50.225 km

Vertical Plots

Here's a plot showing where the cross sections come from:

S001 slices marked.png

Cross-sections parallel to the Y (long) axis:

No smoothing: CCA06 and CVM-S4.26
50 Y vertical cross-section, NW/SE, 8.75 km from SW boundary
1200 Y vertical cross-section, NW/SE, 210 km from SW boundary
2350 Y vertical cross-section, NW/SE, 411.25 km from SW boundary
Smoothing: CCA06, USGS Bay Area, and CVM-S4.26
50 Y vertical cross-section, NW/SE, 8.75 km from SW boundary
1200 Y vertical cross-section, NW/SE, 210 km from SW boundary
2350 Y vertical cross-section, NW/SE, 411.25 km from SW boundary

Cross-sections parallel to the X (short) axis:

No smoothing: : CCA06 and CVM-S4.26
475 X vertical cross-section, SW/NE, 83.125 km from NW boundary
1575 X vertical cross-section, SW/NE, 275.625 km from NW boundary
2725 X vertical cross-section, SW/NE, 476.875 km from NW boundary
3875 X vertical cross-section, SW/NE, 678.125 km from NW boundary
Smoothing: CCA06, USGS Bay Area, and CVM-S4.26
475 X vertical cross-section, SW/NE, 83.125 km from NW boundary
1575 X vertical cross-section, SW/NE, 275.625 km from NW boundary
2725 X vertical cross-section, SW/NE, 476.875 km from NW boundary
3875 X vertical cross-section, SW/NE, 678.125 km from NW boundary

Hazard Curves

Hazard curves comparing smoothed velocity model (in blue) and unsmoothed (in black) results.

Smoothed velocity model (blue) vs unsmoothed (black)
Smoothed velocity model (blue) vs unsmoothed (black)
Smoothed velocity model (blue) vs unsmoothed (black)
Smoothed velocity model (blue) vs unsmoothed (black)

s1252

s1252 is a site in the mountains near the San Andreas and just far enough north to include northern San Andreas events within the 200 km cutoff.

These plots were generated using CCA, USGS Bay Area, and CVM-S4.26. We generated plots both without and with smoothing.

Horizontal Plots

No smoothing
Horizontal cross-section, depth=0 km
Horizontal cross-section, depth=1.05 km
Horizontal cross-section, depth=9.975 km
Horizontal cross-section, depth=25.025 km
Horizontal cross-section, depth=50.225 km
Smoothing
Horizontal cross-section, depth=0 km
Horizontal cross-section, depth=1.05 km
Horizontal cross-section, depth=9.975 km
Horizontal cross-section, depth=25.025 km
Horizontal cross-section, depth=50.225 km

Cutoff Plots

To verify that the cutoffs are being correctly applied (Vs=900 m/s, Vp=rho=3060), we created the following plots.

Vp, horizontal cross-section, depth=0 km
Vs, horizontal cross-section, depth=0 km
rho, horizontal cross-section, depth=0 km

Since rho is getting washed out, we produced the below series of plots at a variety of depths with a very low cutoff (Vs=100 m/s, Vp=rho=340), to see what the models look like without the above cutoffs.

Vp Vs Density
0 km depth
Vp, horizontal cross-section, depth=0 km
Vs, horizontal cross-section, depth=0 km
Rho, horizontal cross-section, depth=0 km
1.05 km depth
Vp, horizontal cross-section, depth=1.05 km
Vs, horizontal cross-section, depth=1.05 km
Rho, horizontal cross-section, depth=1.05 km
9.975 km depth
Vp, horizontal cross-section, depth=9.975 km
Vs, horizontal cross-section, depth=9.975 km
Rho, horizontal cross-section, depth=9.975 km
25.025 km depth
Vp, horizontal cross-section, depth=25.025 km
Vs, horizontal cross-section, depth=25.025 km
Rho, horizontal cross-section, depth=25.025 km
50.225 km depth
Vp, horizontal cross-section, depth=50.225 km
Vs, horizontal cross-section, depth=50.225 km
Rho, horizontal cross-section, depth=50.225 km

Vertical Plots

Here's a plot showing where the cross sections come from:

S1252 slices marked.png

Cross-sections parallel to the Y (long) axis:

No smoothing
50 Y vertical cross-section, NW/SE, 8.75 km from SW boundary
1200 Y vertical cross-section, NW/SE, 210 km from SW boundary
2350 Y vertical cross-section, NW/SE, 411.25 km from SW boundary
Smoothing
50 Y vertical cross-section, NW/SE, 8.75 km from SW boundary
1200 Y vertical cross-section, NW/SE, 210 km from SW boundary
2350 Y vertical cross-section, NW/SE, 411.25 km from SW boundary

Cross-sections parallel to the X (short) axis:

No smoothing
445 X vertical cross-section, SW/NE, 83.125 km from NW boundary
1595 X vertical cross-section, SW/NE, 275.625 km from NW boundary
2745 X vertical cross-section, SW/NE, 476.875 km from NW boundary
3895 X vertical cross-section, SW/NE, 678.125 km from NW boundary
5045 X vertical cross-section, SW/NE, 678.125 km from NW boundary
6195 X vertical cross-section, SW/NE, 678.125 km from NW boundary
Smoothing
445 X vertical cross-section, SW/NE, 83.125 km from NW boundary
1595 X vertical cross-section, SW/NE, 275.625 km from NW boundary
2745 X vertical cross-section, SW/NE, 476.875 km from NW boundary
3895 X vertical cross-section, SW/NE, 678.125 km from NW boundary
5045 X vertical cross-section, SW/NE, 678.125 km from NW boundary
6195 X vertical cross-section, SW/NE, 678.125 km from NW boundary
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