AWIPS: Then and Now
Over the last nine years, AWIPS has transitioned from a system built on HP hardware and the operating system HP UX 10.2, used in 1997 but still running on AWIPS hardware in fall 2005, to a system built around the Linux operating system and commodity hardware. During the same time, NOAA's NWS has transitioned from text based public forecasts to forecasts generated from a 5 km gridded forecast data base. Industry trends have been similarly dramatic, ranging from the ubiquitous presence of the Internet, dramatic increases computing and storage capacity to the emergence and acceptance of the open source software paradigm.
This paper traces the changes in the AWIPS system against the corresponding changes in technology and weather operations.