The Operations Planning Committee for Infrastructure (OPC-I) is charged with oversight of planning for SZ4D infrastructure construction and operation, including:

• MultiArray (Chile), 

• Onshore/offshore domestic instrumentation,

• Physical Infrastructure required for GeoArray,

• Physical Infrastructure required for modeling,

• Physical Infrastructure required for experiments and sample archiving. 

• Physical Infrastructure required for data management

• Other physical infrastructure identified by OPC-A or WGs. 

The OPC-I supports the development of SZ4D infrastructure proposals by: 

• Making informed recommendations to proposal development teams (based on scientific guidance and technical guidance as appropriate and in reference to the Implementation Plan and Array Success Criteria) regarding: 

  • Instrument types, numbers, models, etc

  • Deployment locations (blobs-to-targets-to-dots) and modes (e.g., telemetry, power, logistics, etc)

  • Staffing requirements for infrastructure construction and operation

• Making informed recommendations on the relative priority of competing  infrastructure needs

• Reviewing and overseeing infrastructure proposal budgets (for completeness, bloat, accuracy)

• Developing and implementing a change control process for MultiHazard Array and domestic onshore/offshore deployments.

OPC-I reports regularly to the Steering Committee on its activities. 

OPC-I regularly coordinates with other SZ4D committees and external groups:

• Solicit scientific guidance from working groups as a basis for recommendations to infrastructure proposal PIs and to Steering Committee

• Solicit technical guidance from infrastructure vendors, relevant facilities (OBSIC, Earthscope, RAPID, etc), and community members with relevant expertise

• Synchronize with facilities and projects related to SZ4D (EarthScope, OBSIC, CRESCENT, etc) to remain knowledgeable about and responsive to complementary infrastructure efforts.