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Background
The WCSRI is an implementation of the Web Coverage Service (WCS) 1.1.2 specification published by the Open Geospatial Consortium (OGC). The server provides access to gridded weather data products that have binary data encodings, such as GRIB and NetCDF, as well as accompanying metadata. The specification implementation includes support for geospatial and temporal filtering as well as caching functions to allow for flexible and efficient distribution of weather data. The WCS supports both the publish/subscribe and request/reply message exchange patterns (MEP) in a consistent manner to meet use cases related to both real-time data dissemination and ad-hoc requests for information.
The WCSRI is an implementation of the services specified by the WCS 1.1.2 and WS-Notification (WS-N) specifications. The WCS specification provides the operations to advertise the server's capabilities and retrieve weather data subsets and related metadata. The WS-N specification provides the operations for supporting real-time data distribution including subscriptions and notifications. The server is implemented as a service-oriented architecture (SOA) built upon core messaging services and SOA-defined infrastructure. It's implemented using a variety of open-source and well-known technologies and runs within the Apache enterprise-service bus (ESB), called servicemix. In order to provide a robust implementation appropriate for an operational environment, the WCSRI provides enterprise-level capabilities for improved Quality of Service (QOS) such as high-availability/failover and scalability/load-balancing.
MDL's Role
MDL used the WCSRI software and set up a set of servers to transmit aviation-focused gridded data in grib and netCDF-4 "CF" compliant to the FAA Technical Center as part of the NextGen Program initiative
MDL used 5 dedicated T1 lines, CE Router in Egg Harbor and the OpsNet Cloud on a secure line to disseminate these products in an ad-hoc as well as publication/subscription
In 2010, MDL obtained an XML Gateway Server to protect the application layer and developed prototype security process for interconnections through external NextGen Enterprise Messaging Systems (NEMS).
Later on, MDL developed a WMS capability for the visualization of Web Service WCS and WFS data. This was called the NextGen on a tablet display.
