Raw

• What is the format for a RINEX file?
• What is the format for an IGS site log?

Processed

• How are the PBO GPS Level 2 products generated?
• How are PBO GPS products named?
• What is the format for a SINEX file?
• What is the format for a PBO phase RMS file?
• What is the format for a PBO station position time series file?
• What is the format for a PBO network velocity field file?
• What is modified Julian date?
• How do I convert GPS week/day to other date standards?
• How do I plot PBO GPS station position time series?

  » Download our parsing code

  This is a Matlab script called plot_pbo_ts.m. Contact Adrian Borsa for assistance.

Strain Products

Raw

• How do long-baseline laser strainmeters work?
• What is the format for a PBO Ice-9 file?
• What is the format for a PBO bottle file?
• What is the PBO SEED network code? Channel codes? Location codes?
• SEED manual, version 2.4
• How to access SEED data at the IRIS DMC?
• How to access SEED data at the NCEDC?
• How do I read a SEED file?
• How do I convert a SEED file to ASCII format?

  SEED files can be converted to ASCII format using programs such as HAM or msi. The program rdseed will output SAC ASCII format upon request (output option 6).

• Are there any web sites with SEED tools I can download?

  Yes, IRIS DMC and ORFEUS have SEED software libraries.

• Is there a script to download bottle data

  The script pbo-fetch-strain can be used to download bottle data from the archives. The script uses wget.

• How are PBO pore pressure data archived?
• How is the pore pressure measured?
• How are data downsampled by the GTSM21 data logger?

Processed

• How are the PBO Level 2 borehole strainmeter products generated?
• How are the PBO Level 2 laser strainmeter products generated?
• What is the polarity of PBO borehole strainmeter data?

  Extension is positive for all PBO borehole strainmeter data.

• What is the format for a PBO strain XML file?
• How do I read XML files?

  The program rdstrain.pl can be used to extract data from PBO LSM and BSM XML files. You can extract a specific time period from the file and output the data as a smaller XML file or as a tab delimited ASCII file.

  » Download our parsing code

  This is a Perl script called rdstrain.txt. You will need to rename it to rdstrain.pl. Please run rdstrain.pl -h for instructions, or contact Kathleen Hodgkinson for assistance.

• Tidal Analysis Software
  • BAYTAP-G (Tamura et al., 1991)
  • SPOTL (Agnew, 1996)
  • PIASD (Agnew, 2004)
  • 2005 Strainmeter and Tiltmeter Course

Miscellaneous

• Glossary of Strainmeter Terms
• Strainmeter Information Mailing List