A New Collaboration for a Web-Services Enabled Geodesy Seamless Archive
The NASA ROSES ACCESS Program has recently funded UNAVCO, CDDIS and SOPAC, to expand and modernize metadata exchange definitions and technologies first developed in the late 1990s as the GPS Seamless Archive Centers (GSAC). See the old GSAC Web pages for historical reference. The resulting system provides comprehensive user access to a broad range of space geodetic data including GPS/GNSS, DORIS, SLR, and VLBI.
The three partnering Data Centers will provide technical expertise to develop metadata definitions for a set of data-exchange and query Web Services. A new Web Services enabled Geodesy Seamless Archive (GSAC-WS) is being developed. The University of Nevada, Reno (UNR) is a fourth partner in the GSAC-WS project and will test the Web Services by incorporating them into their daily GNSS data processing scheme. The UNR effort will include quality assessment of current and legacy data.
We have fielded 3 implementations so far:
