1. Interpolating atmospheric water vapor delay by incorporating terrain elevation information

   • W. B. Xu
   • Z. W. Li
   • J. J. Zhu

   Original Article 08 March 2011 Pages: 555 - 564

2. Assessment of periodic sub-diurnal Earth rotation variations at tidal frequencies through transformation of VLBI normal equation systems

   • Thomas Artz
   • Sarah Tesmer née Böckmann
   • Axel Nothnagel

   Original Article 09 March 2011 Pages: 565 - 584

3. Alternative method for angular rate determination within the GOCE gradiometer processing

   • C. Stummer
   • T. Fecher
   • R. Pail

   Original Article 29 March 2011 Pages: 585 - 596

4. Strapdown INS/DGPS airborne gravimetry tests in the Gulf of Mexico

   • Xiaopeng Li

   Original Article 26 March 2011 Pages: 597 - 605

5. Assessing Greenland ice mass loss by means of point-mass modeling: a viable methodology

   • Oliver Baur
   • Nico Sneeuw

   Original Article 29 March 2011 Pages: 607 - 615

6. The impact of celestial pole offset modelling on VLBI UT1 intensive results

   • Zinovy Malkin

   Original Article 12 April 2011 Pages: 617 - 622

7. Atmospheric range correction for two-frequency SLR measurements

   • Dudy D. Wijaya
   • Fritz K. Brunner

   Original Article 17 April 2011 Pages: 623 - 635

8. Simulation study of the influence of the ionospheric layer height in the thin layer ionospheric model

   • Claudio Brunini
   • Emilio Camilion
   • Francisco Azpilicueta

   Original Paper 19 April 2011 Pages: 637 - 645

9. IAG Newsletter

   • Gyula Tóth

   IAG Newsletter 30 July 2011 Pages: 647 - 650