Updates to the IERS Conventions (2010): Chapter 7 - Displacement of reference points
Working version last updated: 10 June 2013 see List of updates

Text of Chapter 7: TeX file; PDF file
Chapter 7 Figures (eps format)

Files for Chapter 7:
See the software page for subroutines pertaining to Chapter 7.

  • annual.pole - Table of yearly mean of pole coordinates from 1976.0 to 2010.0, used to generate the IERS (2010) mean pole model in Section 7.1.4. Provided by D. Gambis.
  • opoleloadcoefcmcor.txt.gz - Table of coefficients for the ocean pole tide loading model (gzipped). Provided by S. Desai.
  • opoleloadcmcor.test - Test run for the ocean pole tide model. Provided by S. Desai.
Additional material for Chapter 7 is available here.

List of updates:

  • 23 September 2011: The subroutine ARG2.F has been corrected for a bug that caused an error for dates starting with year 2000 (noted by Sha Liu). Note that the IYEAR argument is now the four-digit year.
  • 14 October 2011: The subroutine ARG2.F has been corrected to not modify internally the IYEAR argument (the four-digit year).
  • 26 March 2012: Have been modified to account for the next leap second to occur June 30, 2012:
    • The program HARDISP.F and its subroutine ETUTC.F
    • The subroutine DEHANTTIDEINEL.F and its subroutines from the SOFA package DAT.F and CAL2JD.F.

      • Note that the previous version of DEHANTTIDEINEL.F, which is the one available on the Conventions 2010 web page, erroneously did not include the update dated April 10, 2009, see the archive of updates. This version reinstalls this update (a 0.05 mm effect).

  • 10 June 2013: The subroutine DEHANTTIDEINEL.F is corrected for a bug that occurred at the update dated 26 March 2012 (noted by D. Ferguson). The potential error is below 0.1 mm.