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Gridded Model Output Statistics (MOS)

A Work in Progress


NOTE! NOTE! This page is old and will not be updated as of February 2008. For the current version, please go to http://weather.gov/mdl/synop/gmos.php


Initial Implementation August 15, 2006

Sky Cover, QPF, Wind Gusts and Snowfall added June 5, 2007


Gridded MOS Images

  • MOS graphics as part of the National Digital Guidance Database (NDGD) (Open for comments)
  • ftp site for gridded MOS GRIB2 binary files
  • Gridded MOS Implementation Details

  • Stations used in analysis ordered by WFO
  • Log of Changes to Gridded MOS
  • Specifics of cycle averaging - Coming soon
  • Gridded MOS Technical Specifications

  • Description of gridded MOS GRIB2 ftp file structure (updated 4/08/08)
  • Available Elements and Projections (pdf format)
  • WMO Communication Headers (pdf format)
  • GRIB2 encoding of gridded MOS
  • Coming Soon - Grid Specifications - for now see GRIB2 encoding page above for specs
  • Gridded MOS Notifications

  • Amended Technical Implementation Notice 05-56 (TIN) Transmitted July 27, 2006
  • Amended Technical Implementation Notice 06-87 (TIN) Transmitted March 8, 2007
  • Technical Implementation Notice 07-82 (TIN) Transmitted October 24, 2007
  • Data Review Group - NWS Request for Change (RC) approved, Initial implementation, August 15, 2006
  • Data Review Group - NWS Request for Change (RC) approved, Second implementation, June 5, 2007
  • Data Review Group - NWS Request for Change (RC) approved, Initial Alaska implementation, scheduled for February 26, 2008
  • Gridded MOS Training Material

  • MOSGuide - IFPS Smart Tools Gridded GFS MOS Reference Page, Courtesy of Eastern Region Scientific Services Division - D. Novak
  • AMS Short Course - The Role of Model Output Statistics (MOS) in Downscaling of NWP Model Output - Glahn 2006 (PowerPoint Presentation)
  • Gridded MOS - Techniques, Status, and Plans - Dallavalle and Glahn 2006 (PowerPoint Presentation)
  • Gridded MOS - Techniques, Status, and Plans - Dallavalle and Glahn 2006 (published for web)
  • Gridded MOS Presentation for Western Region SOOs (PowerPoint Presentation)
  • Gridded MOS References

    Available in pdf format

  • One-page Need/Opportunity Identification Document
  • Gridded MOS Statement of Need (SON)
  • Gridded MOS Concept of Operations (CONOPS)
  • Gridded MOS Operational Requirements Document (ORD)
  • Gridded MOS Program Plan - Updated 7/27/06
  • Gridded MOS Business Case Analysis (BCA)
  • Technical Requirements for AWIPS
  • Toward A Gridded MOS System - Dallavalle and Glahn, 2005
  • Using Geographical Information Systems to Develop Gridded Model Output Statistics - Sheets et al., 2005
  • Gridded MOS - Techniques, Status, and Plans - Glahn and Dallavalle 2006
  • MDL Office Note 06-01 - Performance of Three Forecast Systems at Selected MOS and Non-MOS Stations -Schenk 2006
  • CONOPS Appendix Items

  • Flow diagram of Grids to AWIPS/N-AWIPS
  • Sample of Tradiitional MOS vs Gridded MOS MAX Temperature grids
  • Sample of Gridded MOS MAX Temperatures

  • National Weather Service
    Office Of Science and Technology
    Meteorological Development Laboratory
    Statistical Modeling Branch
    1325 East West Highway
    Silver Spring, MD 20910
    Page last modified: 10 January 2008
    Page Author: MOS Web Team
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