Difference between revisions of "IRIS EMC"

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== CVM-H Model in IRIS EMC ==
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*[http://ds.iris.edu/ds/products/emc-cvm_h_v15_1/ IRIS EMC CVM-H Model Page]
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With the model in EMC, IRIS webtools can be used to query it.
 +
Basically, you build a query, and use the model name in the query, and the EMC can query the contributed version of CVM-H.Examples below:
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The EMC Query service documentation:
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*[http://service.iris.edu/irisws/earth-model/1/ EMC URL Builder Docs]
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  http://service.iris.edu/irisws/earth-model/1/
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To get metadata about this CVM-H model:
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*[http://service.iris.edu/irisws/earth-model/1/modelinfo?model=CVM*&nodata=404 CVM-H Metadata]
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  http://service.iris.edu/irisws/earth-model/1/modelinfo?model=CVM*&nodata=404
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To query data for a single point: (This generates and downloads a geocvs file)
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*[http://service.iris.edu/irisws/earth-model/1/line?model=CVM_H_v15_1&variable=vs,vp,rho&latitude=32.5780&longitude=-120.8620&mindepth=-18.0&maxdepth=-17.0&format=geocsv&nodata=404 Point Query]
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  http://service.iris.edu/irisws/earth-model/1/line?model=CVM_H_v15_1&variable=vs,vp,rho&latitude=32.5780&longitude=-120.8620&mindepth=-18.0&maxdepth=-17.0&format=geocsv&nodata=404
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To slice the model: (This generates and downloads a geocsv file)
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*[http://service.iris.edu/irisws/earth-model/1/plane?model=CVM_H_v15_1&variable=vs&minlatitude=31.0&maxlatitude=33.0&minlongitude=-120.0&maxlongitude=-119.0&depth=-40&format=geocsv&nodata=404 Slice Query]
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  http://service.iris.edu/irisws/earth-model/1/plane?model=CVM_H_v15_1&variable=vs&minlatitude=31.0&maxlatitude=33.0&minlongitude=-120.0&maxlongitude=-119.0&depth=-40&format=geocsv&nodata=404
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== Proposed CVM-H Model ==
 
== Proposed CVM-H Model ==
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Characteristics of the proposed version of CVM-H in netCDF format:
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Characteristics of the NetCDF version of CVM-H are:
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* Resolution is 1km x 1km x .5km (depth)
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**n_lon_steps = 754
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**n_lat_steps = 566
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**n_z_steps = 109
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**total_pts = 46,517,276
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* Coverage Region is CVM-H Low Resolution region
 
* Coverage Region is CVM-H Low Resolution region
 
**dataset.geospatial_lat_min = 30.95
 
**dataset.geospatial_lat_min = 30.95
 
**dataset.geospatial_lat_max = 36.613
 
**dataset.geospatial_lat_max = 36.613
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**dataset.geospatial_lat_units = "degrees_north"
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**dataset.geospatial_lat_resolution = 0.01
 
**dataset.geospatial_lon_min = -120.862
 
**dataset.geospatial_lon_min = -120.862
 
**dataset.geospatial_lon_max = -113.333
 
**dataset.geospatial_lon_max = -113.333
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**dataset.geospatial_lon_units = "degrees_east"
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**dataset.geospatial_lon_resolution = 0.01
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**dataset.geospatial_vertical_min = -50.0
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**dataset.geospatial_vertical_max = 4.0
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**dataset.geospatial_vertical_units = "km"
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**dataset.geospatial_vertical_resolution = 0.5
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**dataset.geospatial_vertical_positive = "up"
  
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* Resolution is 1km x 1km x 500m (depth)
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*Variable Names, Units, and Ranges
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**n_lon_steps = 754
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**vp.long_name = "P Velocity"
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**n_lat_steps = 566
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**vp.display_name = "P Velocity (km/s)"
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**n_z_steps = 102
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**vp.units = 'km.s-1'
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**total_pts = 43,529,928
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**vp.valid_range = 0.0,10.0
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**vp.missing_value = -99999.00
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**vs.long_name = "S Velocity"
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**vs.display_name = "S Velocity (km/s)"
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**vs.units = 'km.s-1'
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**vs.valid_range = 0.0,10.0
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**vs.missing_value = -99999.00
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**rho.long_name = "Density"
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**rho.display_name = "Density (kg/m^3)"
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**rho.units = 'kg.m-3'
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**rho.valid_range = 0.0,8000.0
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**rho.missing_value = -99999.00
  
 
* CVM-H flags used in model extraction:  
 
* CVM-H flags used in model extraction:  
 
**cvmh_param=USE_1D_BKG,True
 
**cvmh_param=USE_1D_BKG,True
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**cvmh_param=USE_GTL,False  
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**cvmh_param=USE_GTL,False
  
 
== CVM-H Model Bundle Components ==
 
== CVM-H Model Bundle Components ==
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*[http://hypocenter.usc.edu/research/CME/CVM_H_description.docx CVM-H Model Description]
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*[http://hypocenter.usc.edu/research/CME/CVM_H_webpage.docx CVM-H EMC webpage Model Description]
 
*[http://hypocenter.usc.edu/research/CME/CVM-H_netCDF.meta.txt netCDF CF-1.6 Metadata included in netCDF file]
 
*[http://hypocenter.usc.edu/research/CME/CVM-H_netCDF.meta.txt netCDF CF-1.6 Metadata included in netCDF file]
 
*[http://hypocenter.usc.edu/research/CME/Shaw_et_al_USR_2015.pdf Shaw et al (2015) USR paper describing model]
 
*[http://hypocenter.usc.edu/research/CME/Shaw_et_al_USR_2015.pdf Shaw et al (2015) USR paper describing model]
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*[http://hypocenter.usc.edu/research/CME/emc_cvmh_1k_500m.nc NetCDF file to be contributed to IRIS - (Warning: 544Mb) ]
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*[http://hypocenter.usc.edu/research/CME/CVM_H_Test_Points.txt CVM_H lat/lon/depth points in ASCII Format for Testing netCDF file]
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== CVM-H Model in NetCDF file format ==
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*[http://hypocenter.usc.edu/research/CME/SCEC_CVM_H_v15_1.nc NetCDF file contributed to IRIS - (Warning: 558Mb) ]
  
 
== IRIS Earth Model Collaboration Website ==
 
== IRIS Earth Model Collaboration Website ==
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== NetCDF Guidelines ==
 
== NetCDF Guidelines ==
 
*[https://www.nodc.noaa.gov/data/formats/netcdf/v1.1/ netCDF format guidelines]
 
*[https://www.nodc.noaa.gov/data/formats/netcdf/v1.1/ netCDF format guidelines]
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== Viz tools for viewing NetCDF files ==
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*[https://www.paraview.org/ ParaView Software]
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*[https://github.com/iris-edu/EMC-ParaView IRIS ParaView Plugins]
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*[https://www.unidata.ucar.edu/software/idv/ Unavco NetCDF IDV software]
  
 
== IDV based Comparisons of SCEC models ==
 
== IDV based Comparisons of SCEC models ==

Latest revision as of 21:48, 30 August 2020

CVM-H Model in IRIS EMC

With the model in EMC, IRIS webtools can be used to query it. Basically, you build a query, and use the model name in the query, and the EMC can query the contributed version of CVM-H.Examples below:

The EMC Query service documentation: 

 http://service.iris.edu/irisws/earth-model/1/

To get metadata about this CVM-H model: 

 http://service.iris.edu/irisws/earth-model/1/modelinfo?model=CVM*&nodata=404

To query data for a single point: (This generates and downloads a geocvs file) 

 http://service.iris.edu/irisws/earth-model/1/line?model=CVM_H_v15_1&variable=vs,vp,rho&latitude=32.5780&longitude=-120.8620&mindepth=-18.0&maxdepth=-17.0&format=geocsv&nodata=404

To slice the model: (This generates and downloads a geocsv file) 

 http://service.iris.edu/irisws/earth-model/1/plane?model=CVM_H_v15_1&variable=vs&minlatitude=31.0&maxlatitude=33.0&minlongitude=-120.0&maxlongitude=-119.0&depth=-40&format=geocsv&nodata=404

Proposed CVM-H Model

Characteristics of the NetCDF version of CVM-H are:

  • Resolution is 1km x 1km x .5km (depth)
    • n_lon_steps = 754
    • n_lat_steps = 566
    • n_z_steps = 109
    • total_pts = 46,517,276
  • Coverage Region is CVM-H Low Resolution region
    • dataset.geospatial_lat_min = 30.95
    • dataset.geospatial_lat_max = 36.613
    • dataset.geospatial_lat_units = "degrees_north"
    • dataset.geospatial_lat_resolution = 0.01
    • dataset.geospatial_lon_min = -120.862
    • dataset.geospatial_lon_max = -113.333
    • dataset.geospatial_lon_units = "degrees_east"
    • dataset.geospatial_lon_resolution = 0.01
    • dataset.geospatial_vertical_min = -50.0
    • dataset.geospatial_vertical_max = 4.0
    • dataset.geospatial_vertical_units = "km"
    • dataset.geospatial_vertical_resolution = 0.5
    • dataset.geospatial_vertical_positive = "up"
  • Variable Names, Units, and Ranges
    • vp.long_name = "P Velocity"
    • vp.display_name = "P Velocity (km/s)"
    • vp.units = 'km.s-1'
    • vp.valid_range = 0.0,10.0
    • vp.missing_value = -99999.00
    • vs.long_name = "S Velocity"
    • vs.display_name = "S Velocity (km/s)"
    • vs.units = 'km.s-1'
    • vs.valid_range = 0.0,10.0
    • vs.missing_value = -99999.00
    • rho.long_name = "Density"
    • rho.display_name = "Density (kg/m^3)"
    • rho.units = 'kg.m-3'
    • rho.valid_range = 0.0,8000.0
    • rho.missing_value = -99999.00
  • CVM-H flags used in model extraction:
    • cvmh_param=USE_1D_BKG,True
    • cvmh_param=USE_GTL,False

CVM-H Model Bundle Components

CVM-H Model in NetCDF file format

IRIS Earth Model Collaboration Website

NetCDF Guidelines

Viz tools for viewing NetCDF files

IDV based Comparisons of SCEC models

Related Entries

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