Difference between revisions of "CyberShake Data for Asimaki Team"
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=== Database data format === | === Database data format === | ||
| − | The data is available as a SQLite file, downloadable here. | + | The data is available as a SQLite file, downloadable [https://g-c662a6.a78b8.36fe.data.globus.org/cybershake/Study_22.12/initial_data.sqlite here]. It is approximately 1.2 GB. |
The SQLite database consists of two tables, CyberShake_Site_Info and IM_Data. | The SQLite database consists of two tables, CyberShake_Site_Info and IM_Data. | ||
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=== Distance metrics === | === Distance metrics === | ||
| − | As part of his GMM calculations, Kevin calculates a number of distance metrics needed for the NGAWest2 GMMs. A zip file containing CSVs for each site, with Rrup, Rjb, Rx, and Ry0 is available [ | + | As part of his GMM calculations, Kevin calculates a number of distance metrics needed for the NGAWest2 GMMs. A zip file containing CSVs for each site, with Rrup, Rjb, Rx, and Ry0 is available [https://opensha.usc.edu/ftp/kmilner/cybershake/site_flat_files/study_22_12_lf.zip here]. It is approximately 50 MB. |
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| + | == List of ruptures == | ||
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| + | I've produced a list of all the (source ID, rupture ID) combinations used by any site in Study 22.12, which is approximately 8500 ruptures. This list is available [https://g-c662a6.a78b8.36fe.data.globus.org/cybershake/Study_22.12/Rupture_list.csv here] in CSV format. It's less than 100 KB. | ||
Latest revision as of 17:29, 8 April 2024
This page documents assembling CyberShake 22.12 data for the Asimaki Team in spring 2023.
Initial data retrieval
As an initial test, we've retrieved CyberShake Study 22.12 low-frequency RotD50 data for 6 sites (LADT, PAS, SBSM, STNI, USC, WNGC) at 6 periods (2, 3, 4, 5, 7.5, 10 sec).
Database data format
The data is available as a SQLite file, downloadable here. It is approximately 1.2 GB.
The SQLite database consists of two tables, CyberShake_Site_Info and IM_Data.
The CyberShake_Site_Info schema is: CyberShake_Site_Info (Site_Name TEXT, Site_Lat REAL, Site_Lon REAL, Model_Vs30 REAL, Z1_0 REAL, Z2_5 REAL)
- Site_Name: the 3-5 character CyberShake site name
- Site_Lat: the latitude of the site
- Site_Lon: the longitude of the site
- Model_Vs30: The Vs30 value, created by querying the velocity model at 1-meter increments in the range [0.5, 29.5] and taking the slowness average. Note that for CyberShake, we apply a Vs floor of 500 m/s when we generate the velocity mesh used for the simulations. Therefore, values less than 500 m/s in the model aren't "seen" by the simulations.
- Z1_0: The Z1.0 value. We determine this value by querying the model in 10-meter increments, and selecting the point at which the Vs value crosses from below 1000 m/s to above. If the value crosses more than once, we use the 2nd crossing.
- Z2_5: The Z2.5 value. As with Z1.0, we query the model in 10-meter increments and select the point where Vs crosses from below 2500 m/s to above. If there are multiple crossings, we use the 2nd crossing.
The IM_Data schema is: IM_Data (Site_Name TEXT, Run_ID INTEGER, Source_ID INTEGER, Rupture_ID INTEGER, Rup_Var_ID INTEGER, Magnitude REAL, Site_Rupture_Dist REAL, IM_Period REAL, IM_Value REAL)
- Site_Name: the 3-5 character CyberShake site name
- Run_ID: the CyberShake run ID associated with the Study 22.12 LF run for this site
- Source_ID: the source ID of the event, assigned in UCERF2
- Rupture_ID: the rupture ID of the event, assigned in UCERF2
- Rup_Var_ID: the rupture variation ID of the event, which identifies a unique hypocenter location and slip distribution
- Magnitude: magnitude of the event. Note that all rupture variations for the same source ID and rupture ID will share the same magnitude.
- Site_Rupture_Dist: a distance metric between the site and rupture. I believe this is the shortest distance between the site and any point on the rupture surface.
- IM_Period: RotD50 period
- IM_Value: RotD50 acceleration value, in cm/s2.
Distance metrics
As part of his GMM calculations, Kevin calculates a number of distance metrics needed for the NGAWest2 GMMs. A zip file containing CSVs for each site, with Rrup, Rjb, Rx, and Ry0 is available here. It is approximately 50 MB.
List of ruptures
I've produced a list of all the (source ID, rupture ID) combinations used by any site in Study 22.12, which is approximately 8500 ruptures. This list is available here in CSV format. It's less than 100 KB.
