HighF v14.12

2015-03-04T06:23:23Z

Enjuilee: /* Point Source Parameters */

== High-F 14.12 Verification and Validation Exercise ==
This page collects information about a proposed high frequency verification and validation exercise. Planning started in Dec 2014.

== Agreements Needed ==
* Simulation Volumes
* Rotation Angle
* Projections used
* Points per wavelength used
* Number and location of sites used for ground motion comparison
* Proposed Station List to save results
* La Habra Point Source parameters
* Currently available code capabilities in GPU codes
** small scale heterogeneities
** FDQ
** Plasticity
** dynamic rupture source
* V and V exercise stages - need to be reviiewed and approved

== Station Lists ==
*[http://hypocenter.usc.edu/research/High-F/lahabra_sites.kml En-Jui Station List w/ Simulation Region (KML Format)]
*[http://hypocenter.usc.edu/research/High-F/BB_sta_LaHabra_list2.tex En-Jui Station List (Text Format)]
*[http://earth.usc.edu/~patrices/hercules/lahabra/ Hercules La Habra Stations]

== Source Description ==
Trimmed, low-pass filtered (fc=5Hz, Butterworth, 2 forward passes, 4 poles), 4300 points, dt=0.001s (and plot of what is should look like).
*[http://hypocenter.usc.edu/research/High-F/sv1_0291_5hz_trim.pdf Time domain Plot of Select Source]
*[http://hypocenter.usc.edu/research/High-F/sv1_0291_5hz_trim.dat Data File For 5Hz Plot]
*[http://hypocenter.usc.edu/research/High-F/spectra.pdf Source Frequency Domain Plot w/ and w/o Filtering]

== Volume ==

The four corners are:
* -119.288842 34.120549
* -118.354016 35.061096
* -116.846030 34.025873
* -117.780976 33.096503

Volume size:
*180,000 m x 135,000 m x 61,875 m = 1.503e15 m3

== 1D Velocity Model Definition ==

*[[Broadband_File_Format_Guide#Velocity_Model_File]]

== Simulation Box / Velocity Model ==

{| class="wikitable" border="1"
|-
! Parameter
! Value
! Notes
|-
| Dimensions (km)
| 180 x 135 x 61.875 (31 km for 1d Model)
|
|-
| Bounding Box (LL)
| -119.288842 34.120549, -118.354016 35.061096, -116.846030 34.025873, -117.780976 33.096503
|
|-
| Rotation Angle
| 39.9
|-
| UCVM Version
| 14.3.0
| No heterogeneities
|-
| Velocity Model Versions
| CVM-S4v26
|-
|Miniumum Vs
| 500 m/s
|
|-
| Samples per wavelength
| 6 to 7 - AWP
| 10 to 12 - Hercules
|}

=== Point Source Parameters ===

{| class="wikitable" border="1"
|-
! Parameter
! Value
! Notes
|-
| Event Name
| La Habra
|
|-
| Mw
| 5.1
| Ref: http://www.scsn.org/2014lahabra.html
|-
| Origin Time
| 2014/03/29 04:09:42.97
| Source: En-Jui
|-
| Origin Location
| -117.930; 33.922; 5.0km
| Source: En-Jui
|-
| Strike/Dip/Rake
| 239/70/38
| Source: En-Jui, based on review of aftershock sequence
|-
| Rise Time
| 0.75 s
|
|}

== Solver Parameters ==

{| class="wikitable" border="1"
|-
! Parameter
! Value
! Notes
|-
| Frequency
| 4.0 Hz
|
|-
| Simulation Length (Duration)
|100 s
|
|-
| Delta T
| 0.005
|
|-
| Plane Output Resolution
| 250m
|
|-
| I/O Print Rate
| every 10 steps
|
|-
| Station List
| TBD
|-
| Software Version
| TBD
|}

[[Image:LaHabra aftershocks.png|256px|thumb|right|Fig 1:Location of La Habra Main Shock and aftershocks, used to select preferred fault plane solution. (Image Credit: En-Jui Lee) ]]

== High-F VandV Exercise Planning Documents (2015) ==
* [http://hypocenter.usc.edu/research/High-F/HighF_VandV_15Jan2015.pptx High-F V and V Exercise Description - Jan 2015 (pptx)]

== High-F Project Plan (2012) ==
* [http://hypocenter.usc.edu/research/High-F/High-F_Project_Plan_6Sept2012.pdf Original High-F Project Plan (pdf)]
* [http://hypocenter.usc.edu/research/High-F/High-F_Project_Plan_6Sept2012.docx Original High-F Project Plan (docx)]

== References Used ==
* Taborda, R. and J. Bielak (2013). Ground-motion simulation and validation of the 2008 Chino Hills, California, earthquake, Bull. Seismol. Soc. Am. 103, no. 1, 131–156, doi 10.1785/0120110325.

== Related Entries ==
*[[High-F Project]]
*[[CME Project]]
*[[AWP-ODC]]
*[[Hercules]]

SCECpedia - User contributions [en]

HighF v14.12