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Welcome to the Weather Information Applications Branch

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About the Weather Information Applications Branch

The Weather Information Applications Branch explores, develops, and implements techniques that generate products and services that enhance the value of NWS forecast products, like the National Digital Forecast Database (NDFD); techniques for data modeling and web services that support NOAA's dissemination needs; techniques for automating the process for creating complete metadata records for aviation interests. WIAB staff are involved in a variety of prototyping efforts using these promising techniques in order to identify and make recommendations on those best suited for implementation into operations. All such techniques are implemented in software on NWS operational platforms and maintained as those systems evolve.



Tabular Product Evolution in eXtensible Markup Language

On December 9th, 2008, the 4 XML products (FOX3, FOX7, ObX and TEX) became operational NWS products. In addition, on January 13th, 2009, operational responsibility for the SCS NWS product was moved from HPC to NDFD. Click on the TPEX link for more information about these products.

Web Services (Past, Present, and Future Planned Work)

The WIAB branch of MDL has been supporting Web Services since 2004, with the Digital Weather Markup Language (DWML) Web Service, a web service that receives more than 50 million hits per day. WIAB staff are currently transitioning the NDFD Web Service into an OGC-compliant web service. The WIAB also worked with NCAR and FAA in prototype design/testing of a Web Coverage /Feature/Map Services and Reg/Rep metadata services. Our prototype work also included recommendations on securing the application layer used by web services. Today, WIAB staff serve as subject matter experts on the team building operational Web Services for IDP. Finally, WIAB staff are collaborating with UK Met Office on the MetOcean Application Profile, an 4D/5D extension of the WCS 2.1 core.

Data Modeling

In response to the growing need for a modern, up-to-date technology for exchanging meteorological data, the WIAB is tasked with developing logical data models for products that serve the nation's weather enterprise. These models, which describe the content and relationships of meteorological data, can be expressed in any number of physical data models, and in this effort, it is XML (eXtensible Markup Language), a widely recognized standard for data interchange over the Internet.

The WIAB role is to create logical data models and corresponding OGC/ISO compliant XML schemas of meteorological products that serve the nation's needs for weather data.

NextGen Metadata Record Creation

MDL continues to lead the development of weather products in formats that are compatible with NextGen Web Services. MDL has been tasked to create, verify, validate, and deliver product metadata records and XML schema for the products identified in the NextGen IT Web Services Product Table for some 200+ gridded and non-gridded NWS Aviation-focused products. Our work includes attempts to automate the process for the creation of these metadata records.

Standards and Committees

The totality of MDL's work in data standards (e.g. GRIB, BUFR, netCDF, HDF, IWXXM, IWXXM-US, USWX, AVWX) and web services (e.g. metadata, WCS, WFS, WMS, WPS) would not be possible without the establishment and strict adherence to international standards. There are World Meteorological Organization (WMO) standards, International Organization for Standardization (ISO) standards, Open Geospatial Consortium (OGC) standards and W3C standards that provide guidance on the methods, procedures, techniques and best practices for both web services and data standards. The purpose of adhering to International Standards is to increase interoperability.


Matt Peroutka photo

Matthew Peroutka

Branch Chief



Welcome to the branch that works on products and services to support the National Weather Service.

What's New

MDL's Mark Oberfield recently attended the WMO's Task Team on Aviation XML meeting in Hong Kong as a NWS Technical representative. Mark presented a white paper on a concept of how to accommodate additional requirements into IWXXM in a way that permitted systems that were not equipped to interpret new information to ignore the new information. This would help tie in IWXXM-US data model with the IWXXM authoritative model better.

Questions or Comments?