HR: 1340h
AN: IN33A-1172 [Abstracts]
TI: Web-Based Services: Combined and Validated GPS Data Products for the Western US
AU: * Bock, Y
EM: ybock@ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Drive
IGPP 4208, La Jolla, CA 92093-0225
United States
AU: Webb, F
EM: fhw@cobra.jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, Pasadena, CA 91109
United States
AU: Dong, D
EM: dong@cobra.jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, Pasadena, CA 91109
United States
AU: Newport, B
EM: bjn@cobra.jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, Pasadena, CA 91109
United States
AU: Jamason, P
EM: pjamason@gpsmail.ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Drive
IGPP 4208, La Jolla, CA 92093-0225
United States
AU: Scharber, M
EM: mscharber@gpsmail.ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Drive
IGPP 4208, La Jolla, CA 92093-0225
United States
AU: Kedar, S
EM: Sharon.Kedar@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, Pasadena, CA 91109
United States
AU: Owen, S
EM: Susan.E.Owen@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, Pasadena, CA 91109
United States
AU: Prawirodirdjo, L
EM: linette@gpsmail.ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Drive
IGPP 4208, La Jolla, CA 92093-0225
United States
AU: Fang, P
EM: pfang@ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Drive
IGPP 4208, La Jolla, CA 92093-0225
United States
AU: Chang, R
EM: rjc@gpsmail.ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Drive
IGPP 4208, La Jolla, CA 92093-0225
United States
AU: Wadsworth, G
EM: gwadswor@gpsmail.ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Drive
IGPP 4208, La Jolla, CA 92093-0225
United States
AU: King, N
EM: nking@usgs.gov
AF: U.S. Geological Survey, 525 South Wilson Ave., Pasadena, CA 91106
United States
AU: Stark, K
EM: stark@dukester.com
AF: U.S. Geological Survey, 525 South Wilson Ave., Pasadena, CA 91106
United States
AU: Granat, R
EM: Robert.A.Granat@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, Pasadena, CA 91109
United States
AU: Argus, D
EM: argus@cobra.jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, Pasadena, CA 91109
United States
AB:
The purpose of this project is to produce and deliver high quality GPS time series and higher-level data products derived
from multiple GPS networks along the western US plate boundary, and to use modern IT methodology to make these products
easily accessible to the community.
This multi-year NASA funded project, "GPS DATA PRODUCTS FOR SOLID EARTH SCIENCE" (GDPSES), has completed the product
development phase and automation of Level-1 Data products. The project processes and posts a daily solution generated by a
combination of two independent GPS station position solutions, generated at SIO and JPL using GAMIT and GIPSY respectively. A
combination algorithm has been implemented. A combined 10-year long time-series for over 450 western US GPS sites is
available for viewing and download for the scientific community via the project's web portal at http://reason.scign.org. In
addition to ongoing product generation GDPSES has a capability to reprocess and combine over a decade of data from the entire
western US within a few days, which enables a quick update of the Level-1 products and their derivatives, when new models
are tested and implemented.
To achieve the project goals and support current data products, several ongoing IT developments are taking place. In the
forefront is an Adaptive Seamless Archive System, which uses web services for GPS data discovery, exchange and storage.
GDPSES has unified the station data and metadata inputs into the processing procedures at the independent analysis centers.
The project has developed XML schemas for GPS time series, and is developing and implementing an array of data quality tools,
to ensure a high-quality combined solution, and to detect anomalies in the time series. Event leveraging will alert users to
tectonic, anthropogenic and processing 'events'. In the next few months the project, through its new data portal called GPS
Explorer, will enable users to zoom in and access subsets of the data via web services. As part of its IT effort the project
is participating in NASA's Earth Science Data Systems Working Groups (ESDSWG), and contributing to the Standards working
group.
UR: http://reason.scign.org
DE: 1294 Instruments and techniques
DE: 9820 Techniques applicable in three or more fields
SC: Earth and Space Science Informatics [IN]
MN: Fall Meeting 2005