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User Preferences for Weather Data Dissemination Standards on the Web

User Preferences for Weather Data Dissemination Standards on the Web. 23rd Conference on Interactive Information Processing Systems for Meteorology, Oceanography, and Hydrology January 13, 2009 John Schattel, Meteorological Development Laboratory

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User Preferences for Weather Data Dissemination Standards on the Web

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  1. User Preferences for Weather Data Dissemination Standards on the Web 23rd Conference on Interactive Information Processing Systems for Meteorology, Oceanography, and Hydrology January 13, 2009 John Schattel, Meteorological Development Laboratory Paul Hershberg , Meteorological Development Laboratory Robert Bunge, Office of Chief Information Officer User Preferences for Weather Data Dissemination Standards on the Web

  2. Background/Overview • National Research Council (NRC) 2003 Fair Weather Report recommendation “The National Weather Service (NWS) should make its data and products available in Internet-accessible digital forms.” • Acting on NRC recommendation requires digital database and services • Implies choosing formats and protocols • Involves considering user preferences • NWS now operates four internet services to disseminate National Digital Forecast Database (NDFD) data User Preferences for Weather Data Dissemination Standards on the Web

  3. Highs for Alaska Grid Wave Height for Puerto Rico Grid Wind for Hawaii Grid Weather for CONUS grid NWS Digital Database • NDFD • NWS official 7-day human prepared forecast • Grids for over 40 sensible weather elements User Preferences for Weather Data Dissemination Standards on the Web

  4. GRIB2 Services XML Services NDFD Services Center Grids GRIB2 Download Service Gateway HTTP/FTP Server Internet Users NDFD (GRIB2) http://www.weather.gov/ndfd/ NWS Web Site WFO Grids SOAP Service REST Service WFS Service User Preferences for Weather Data Dissemination Standards on the Web

  5. NDFD Services User Preferences for Weather Data Dissemination Standards on the Web

  6. Many Users Familiar With SOAP Fewer Users Employ WX/GIS Standards Service Users Relatively New Standard User Preferences for Weather Data Dissemination Standards on the Web

  7. Service Downloads User Preferences for Weather Data Dissemination Standards on the Web

  8. Daily Users (>90%) Regular Users (51 – 90%) Occasional Users (11 – 50%) Infrequent Users (≤10%) User Access Frequency • Approximately 25% SOAP/REST users access service daily while 6% WFS users access service daily • Approximately 75% WFS users access service infrequently compared to 42% and 26% for SOAP and REST User Preferences for Weather Data Dissemination Standards on the Web

  9. Individual Users (<25 Downloads) Small Application Users (25 – 500 Downloads) Industrial Users (501 – 12,000 Downloads) Policy Violator Users (>12,000 Downloads) User Download Frequency User Preferences for Weather Data Dissemination Standards on the Web

  10. Summary • Multiple protocols and formats needed to serve different user communities • Web Applications users with small data needs prefer SOAP and simple XML dialect • Users with larger data volume requirements prefer GRIB2 encoded files • User preferences likely driven by familiarity and development tools support for standards User Preferences for Weather Data Dissemination Standards on the Web

  11. John.Schattel@noaa.gov Extended Abstract: http://ams.confex.com/ams/89annual/techprogram/paper_142686.htm User Preferences for Weather Data Dissemination Standards on the Web

  12. Acronyms • DwGML – Digital Weather Geography Markup Language • DWML – Digital Weather Markup Language • FTP – File Transfer Protocol • GRIB2 – General Regularly-distributed Information in Binary Version 2 • HTTP – Hypertext Transfer Protocol • SOAP – Simple Object Access Protocol • REST – Representational State Transfer • WFO – Weather Forecast Office • WFS – Web Feature Service User Preferences for Weather Data Dissemination Standards on the Web

  13. SOAP1.1 SOAP1.2 GML2.1.2 GML3.1.1 NDFD SOAP NDFD WFS NDFD GRIB2 NDFD REST GRIB2 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 GML3 GML2 GML1 WFS1.0 WFS1.1 Standard Stability User Preferences for Weather Data Dissemination Standards on the Web

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