Global Navigation Satellite System (GNSS) Station unr/gnss/J193/6383/L2/24:00:00 Processing Level:L2 Variable:
Dataset Identification:
Resource Abstract:
Global Navigation Satellite System (GNSS) Station unr/gnss/J193/6383/L2/24:00:00 Name: J193 Processing Level: L2 measurement_technique:
gnss variable_measured: position creator:GSI, JAPAN data_start_time:2009-01-02T00:00:00 data_stop_time:2018-03-16T00:00:00
GPS/GNSS instrumentation records broadcast signals from the GPS and other satellite constellation, and these raw data are
converted into standard daily RINEX files suitable for processing. GPS/GNSS data are recorded at 15-s or 30-s intervals. Several
hundred stations of the PBO network also supply downloaded or streamed 1-s data for archiving and distribution. In addition
highrate data of 1 Hz or 5 Hz may be Custom Data Requested in association with an event such as a significant earthquake.
For data of all rates UNAVCO translates to RINEX and quality checks the data using teqc. GAGE Analysis Centers process data
for all 1100 sites in the PBO GPS/GNSS network and for other sites, including most of the sites in COCONet in the Caribbean
region and an additional 500 sites distributed across North America, most of which are operated by other institutions. The
final, processed products are SINEX solutions, position ti Web Service Link [" The hydrologic models are surface-loading displacement
time series calculated at GAGE-processed sites from hydrological data. Soil moisture, snow-water equivalent from snowpack,
and water stored in vegetation exert a load on the Earth's surface that is modeled to obtain displacements at GPS/GNSS sites.
Outputs GPS crustal motion velocity field estimates. "] Web Service Link [" Results from daily GPS station position solutions
are combined to generate long-term velocity estimate solutions of stations in IGS08 and NAM08 (North America fixed) reference
frames. Station offsets due to earthquakes and equipment changes are estimated and low-quality outliers due to snow, for example,
are removed from the velocity estimate solutions "]
Citation
Title Global Navigation Satellite System (GNSS) Station unr/gnss/J193/6383/L2/24:00:00 Processing Level:L2 Variable:
Description Outputs processed GPS station position time series. Basic descriptions of parameter options are provided on the form. Note
that the analysisCenter and referenceFrame parameters are codependent. More detailed descriptions are provided here
Description Outputs GPS crustal motion velocity field estimates. Results from daily GPS station position solutions are combined to generate
long-term velocity estimate solutions of stations in IGS08 and NAM08 (North America fixed) reference frames. Station offsets
due to earthquakes and equipment changes are estimated and low-quality outliers due to snow, for example, are removed from
the velocity estimate solutions. More detailed descriptions are provided here: https://www.unavco.org/data/web-services/documentation/gps-velocity-documentation.html
Digital Transfer Options
Linkage for online resource
name GET /hydro/model/load/displacement/{station}/beta
Description Outputs Hydrological Loading Timeseries. Hydrological products are displacement models calculated at GPS/GNSS station coordinates
and based on loading from water stored as snowpack, soil moisture, and in vegetation. More detailed descriptions are provided
here: https://www.unavco.org/data/web-services/documentation/hydro-loading-documentation.html.