Global Navigation Satellite System (GNSS) Station unavco/gnss/PBO-Nucleus High Rate/AC26/8483/L0/00:00:01 Processing Level:L0
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Dataset Identification:
Resource Abstract:
Global Navigation Satellite System (GNSS) Station unavco/gnss/PBO-Nucleus High Rate/AC26/8483/L0/00:00:01 Name: Cape_Gull_AK2008_1HZ
Processing Level: L0 measurement_technique: gnss variable_measured: position creator:UNAVCO data_start_time:2018-01-23T14:00:00
data_stop_time:2018-01-23T19:59:59 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 unavco/gnss/PBO-Nucleus High Rate/AC26/8483/L0/00:00:01 Processing Level:L0
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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.