Flow of Processing in GPSMET System

July 7, 2017

Flow of Data Acquisition, Processing, and Delivery of TPW products

Data	Source	Data types	# Stations
GPS Raw data
GPS Observation	Multiple data providers	Phase and code with 30 sec. sampling

GNSS Satellite Products for Processing
GNSS Orbit/clock	VERIPOS	GNSS orbit and clock for PPP processing

Compute TPW from ZTD
Surface met data	NOAA METAR	Surface met observation
GPS Met data	Multiple data providers	Surface met. data at GPS station

Comparisons and Verification
Radiosonde	NOAA	Upper-air metorological observations
GFS Analysis and Forecat	NOAA	NOAA NCEP Global model analysis and forecasts	Grid

Network	Access Information	Status Update
NOAA NGS CORS	CORS (NGS): Top Page FTP: "geodesy" , "alt" Map: CORS Update: Newsletter Notice: CORS Site Notices	Contact NGS CORS: ngs.cors@noaa.gov 10 USCG stations have sent raw data since late in June, 2017.
UNAVCO	UNAVCO PBO: PBO FTP: UNAVCO FTP FTP: UNAVCO highrate FTP Realtimei (RT): Streaming RT Status: Network Status RT Latency: Completeness by Region RT Health: State-of-Health RT Complete: Percent Complete (JSON) RT Latency: Latency (JSON) Outage: Outage Status	Real-time data: RTCM3 Missing: 2017-069 (3/9) 4pm- Outage HP (2017-03-09)
SOPAC	SOPAC: SOPAC/UCSD ("Announcements" for status) FTP: NRT Data
TX DoT	TXDOT: TXDOT-GPS FTP: TX DOT T02 FTP: TX DOT RINEX
DWR	FTP: DWR FTP	Trimble T02 T00 data ( need "runpkr00" )
Decommissioned
NOAA/ESRL (Decommissioned)	FTP: gpsdmz.fsl / outgoing	Decommissioned at around September 28, 2016.

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