supporting positioning in australia through open access ... · supporting positioning in australia...
TRANSCRIPT
Session: GNSS Networks, Processing and Calibrations
Supporting positioning in Australia through open access multi-GNSS data.Ryan Ruddick, Nicholas Brown, Brandon Owen, Ted Zhou and Bart Thomas
Overview of Presentation
IGNSS – Sydney, December 2016
AUSCORS Data CentreMulti-GNSS
IGNSS – Sydney, December 2016
IGNSS – Sydney, December 2016
IGNSS – Sydney, December 2016
Data Products
IGNSS – Sydney, December 2016
Daily Hourly Highrate Stream
Multi-GNSS Transition Plan
Currently• All stations – Daily RINEXv2 and RTCM 3.1 (MT 1004/1012).
• 70% of stations – Daily RINEXv3 and RTCM 3.2 (MSM4,5 or 7).
12 to 18 Months
• All stations providing only RINEXv3 and RTCM 3.2 (MSM7).
• Users wanting RINEXv2 will be able to request down converted files.
Accessing Data
IGNSS – Sydney, December 2016
ftp.ga.gov.au
Connected to ftp.ga.gov.au.220 FTP Server ready.Name (ftp.ga.gov.au:rruddick): anonymous331 Anonymous login ok, send your complete email address as your passwordPassword:230- Geoscience Australia
================================================================================With the exception of the contents requiring a password, all other contents are
released under a Creative Commons Attribution 4.0 Australia Licence
(http://creativecommons.org/licenses/by/4.0/) and the limitation of
liability and warranty clause contained within this licence apply.================================================================================
230 Anonymous login ok, restrictions apply.Remote system type is UNIX.Using binary mode to transfer files.ftp> cd geodesy-outgoing250-Welcome to the Geoscience Australia geodesy data archive
FTP Directory: ftp://ftp.ga.gov.au/geodesy-outgoing/
Data and products are contained in the following main directories.
/apref APREF information and products/doris DORIS data and products/gnss GNSS data and products/gravity AusGeoid09, absolute and tidal gravity data/insar InSAR data and products/local_tie Survey reports for geodetic infrastructure/miscell Miscellaneous information and products/slr SLR data and products/vlbi VLBI data and products
This is a read only server. For data submission please [email protected].
Real-time Global Navigation Satellite System (GNSS) data productsare available by subscription (please note no differentialcorrections are provided). For further information on accessingthese data streams please contact [email protected].
Geoscience Australia has applied the Creative Commons Attribution 3.0Australia Licence. Full details of your obligations when using GeoscienceAustralia's material can be viewed at http://www.ga.gov.au/copyright.html.Geoscience Australia supports and encourages the dissemination and exchangeof information.
ftp>
Accessing Data
IGNSS – Sydney, December 2016
auscors.ga.gov.au
GA Data Centre Statistics
IGNSS – Sydney, December 2016
+ 900 CORS Archive Upload Download
1.6 TB 75 GBper month
164 GBper month
SubscribersStreams Read Written
178 0.4 TBper month
2.4 TBper month
316
Data Centre Projects
IGNSS – Sydney, December 2016
eGeodesy
< META >
Data Centre
Station Metadata
IGNSS – Sydney, December 2016
• Parsing and vetting challenges
• Metadata needed in multiple formats
• Managing files is a chore
• No facilitation of machine-to-machine exchange
• Station metadata is currently stored in text based “static” log files.
Station Metadata - GeodesyML
IGNSS – Sydney, December 2016
• http://www.geodesyml.org
IGNSS – Sydney, December 2016
CORS
GA Data Centre
Data Archive
FTP Server
Validation and QC
eGeodesyDatabase
Incoming Bucket
Internet
Cloud Based Data Centre
Advantages and Changes.
• Improved data validation and quality checking.
• RINEX headers validated against our database.
• Multi-GNSS data QC’d using G-NUT/ANUBIS.
• Reduced latency.
• Improved accessibility of our data.
Changes
• All data will now be gzipped rather than UNIX compressed.
• No FTP access.
IGNSS – Sydney, December 2016
Accessing Data (Future)
IGNSS – Sydney, December 2016
Webpage API
Programmatically AWS Tools
curl –XGET archive‐api.geodesy.ga.gov.au/bulk?dataType=obs&fileLength=daily&sites=ALIC,SYM1&fromDate=2016310&toDate=2016315
Phone: +61 2 6249 9426Web: www.ga.gov.auEmail: [email protected]: Cnr Jerrabomberra Avenue and Hindmarsh Drive, Symonston ACT 2609Postal Address: GPO Box 378, Canberra ACT 2601