Technical Working Groups

National ESPC Technical Working Groups

Common Model Architecture

This committee will develop a common architecture based on the Earth System Modeling Framework (ESMF) and coding standards as necessary to accelerate transition of research and avoid unnecessary duplication of effort.

  • Agree to ESMF architecture, degree and detail of implementation
  • Agree to additional software or hardware standards required to promote interoperability
  • Minimize disruption to operational centers and existing development efforts
  • Estimate cost and time to implement

This committee will define a common physical architecture that enables greater interoperability of specific physical earth system prediction components. The physical architecture is defined as the scientific scope of components - what processes they include - and the relationship of components to each other in the modeling system.

  • Interact with the Content Standards Committee (CSC) to evolve standards suitable for future systems
  • Interact with the Committee for Operational Processing Centers (COPC) on recommendations for computer hardware requirements
  • The development of a common model architecture is expected to be an incremental and exploratory process, and will start with the coupling of major models

Nominal Memership

  • Air Force
  • Colorado University
  • DOE
  • NASA: ESD, GSFC and JPL
  • NCAM
  • NCAR: ESMS, NESL, RAL
  • NOAA: CIRES, CPC, EMC, ESRL and GFDL
  • UK Science and Technology Facilities Council (STFC)

Content Standards Committee

  • Responsible for evolving and expanding the NUOPC interoperability standards
  • Responsible for developing conventions for metadata, documentation, physical constants, and other areas that require mutually agreed on values and formats
  • Not responsible for the design of software or software interfaces
  • Coordinate with the ESMF Core Development Team (CDT) since software will be required to support implementation of some of the conventions
  • Decide model content standards, with input from the CDT, and then give the work to the CDT
  • Receive guidance on priorities from the NUOPC Project Manager and the ESMF Change Review Board (CRB) and pass standards to the CDT for implementation in the NUOPC Interoperability Layer

Nominal Membership

  • Air Force
  • Colorado University
  • DOE
  • ESMF
  • Navy: FNMOC, NAVO, NRLMRY and NRLSSC
  • NOAA: EMC, ESRL, GFDL and OAR

Coupled Global Modeling

This committee will identify ongoing partner research and development efforts to coupled global atmosphere-ocean-land-sea ice models. the committee will assess the status of these efforts and identify the issues affecting progress for these efforts. The committee will identify skill metrics and establish skill goals for mesoscale/synoptic to seasonal coupled prediction systems. The committee will promote discussions on the science of coupled modeling, details of coupling configurations and other key scientific and technical issues.

Nominal Membership:

  • CMC
  • DOE
  • NASA
  • Navy: NRLMRY, NRLSSC and FNMOC
  • NCAR
  • NOAA: EMC, ESRL PSD, ESRL GSD and GFDL
  • UKMO

Coupled Global Modeling Charter

High Performance Computing

This committee examines the current and future High Performance Computing (HPC) architecture needs to meet the requirements of current and future Earth System Modeling Applications.  These requirements will include both legislated/externally documented requirements and internally perceived requirements to research and operationally Earth System Models now and in the future.

Membership will be drawn from the participating agencies with stakeholders as needed.

 

Physics Interoperability

This committee was formed to modernize the Kalnay rules, guidelines developed in 1989 to help facilitate the interchange of Fortran subroutines for physical parameterizations. Modernizing the Kalnay rules addresses changes in computational hardware and software needed for operational NWP:

  • Parallel computing technology
  • Message Passing Interface (MPI)
  • Threading (OpenMP)
  • Accelerators
  • New Fortran standards
  • More complex physical parameterizations

This committee is developing a software driver interface that will allow for the incorporation of physical parameterizations into operational and research NWP models in a more efficient and standardized matter.

Nominal Membership

  • Air Force
  • NASA
  • Navy: NRLMRY
  • NOAA: EMC, ESRL and GFDL
  • NSF

Unified Ensemble Operations

This committee will establish commitment of the NUOPC OPCs for implementation, upgrade, operation, and management of the NUE. It will review the operational processes at NCEP, FNMOC, and AFWA. Monitor implementation of the NUE operational schedule including

  • Transmission of raw member data
  • Transmission of statistically derived parameters
  • Product distribution between centers and to the public

It will present evaluation results to the ESG (for oversight) and OPC (for approaval)

  • NCEP and FNMOC will present metric results
  • NCEP, FNMOC, and AFWA will each make recommendations on which NUOPC multi-model products will be produced

Make resource estimates for implementation of selected products

  • Include post-processing costs (if any)
  • Include NOMADS upgrade costs (if any) to add multi-model products
  • Include public access costs to add NUOPC products at each organization's public websites and include upgrade/maintenance costs for those web sites

Coordinate UEO upgrades

  • Description of Participant model technical and performance changes 
  • Advanced notification of expected implementation schedule
  • Dissemination of test datasets, as appropriate

Review and recommend to the ESG NUE requirments for computational and communications infrastructure.

UEO NUOPC Reporting Metrics

Nominal Membership

  • U.S. Air Force
  • Navy: FNMOC and NRLMRY
  • NOAA: EMC