| Acronym | Start | End | Title | Role | Agency |
| GEOSS Portfolio | 03/2010 | 11/2010 | GEOSS Portfolio for Science and Technology | PI | SCG/EPA |
| GreatBasin | 02/2009 | 04/2012 | Revealing the Nature of Contemporary Uplift and Collapse in the Sierra Nevada - Great Basin System | Co-Investigator | NSF |
| GPSInSAR | 02/2009 | 01/2012 | Geodetic Imaging of Earth's Surface Deformation Using Integrated InSAR and GPS Observations | Co-Investigator | NASA |
| GREAT | 10/2008 | 09/2011 | GPS-aided Real-Time Earthquake and Tsunami (GREAT) Alert System | Co-Investigator | NASA |
| IGCP 565 | 03/2008 | 12/2012 | Developing the Global Geodetic Observing System into a Monitoring System for the Global Water Cycle | Coordinator | UNESCO/IGCP |
| RESGPS | 01/2008 | 12/2010 | Development of Real-Time Tsunami Warning Systems with Continuous GPS | Co-Investigator | NASA |
| SURFMASS | 11/2007 | 10/2010 | Surface Mass Loads From GRACE, GPS, and Earth Rotation Measurements | Institutional PI | NASA |
| GPSTWS | 12/2006 | 12/2007 | System Design for a GPS component of Real-Time Earthquake Source Determination and Tsunami Warning Systems: Collaborative Research with University of Nevada, Reno and Northwestern University | Co-Investigator | USGS-NEHRP |
| GGOS2020 | 07/2006 | 01/2009 | The Global Geodetic Observing System: Meeting the Requirements of a Global Society on a Changing Planet in 2020 | Principal Investigator | JPL/NASA |
| LSLRV | 03/2005 | 01/2006 | Appraisal of relative sea level rise scenarios for Venice | Project leader | Consorzio Venezia Nuova |
| NatGeoInf | 12/2004 | 08/2005 | National geodetic infrastructure: status today and future requirements | Project leader | Norwegian Mapping Authority |
| SHAPE | 10/2004 | 09/2008 | Synthesis of NASA data on Earth's changing geometrical and gravitational shapes to assess changes in terrestrial water storage and its effect on sea level, lithospheric loading, and Earth rotation, to image mantle rheology | Researcher | NASA |
| YUCCA | 10/2003 | 09/2008 | Geodetic Monitoring of Yucca Mountain using GPS | Researcher | DOE |
| GeoCorr | 01/2003 | 05/2004 | Determination of geodetic coordinates for EGNOS RIMS and NLES | Project leader | ESA |
| GOCINA | 11/2002 | 10/2005 | Geoid and Ocean Circulation in the North Atlantic | Colaborator | European Commission |
| ESEAS-RI | 11/2002 | 10/2005 | European Sea Level Service - Research Infrastructure | Coordinator (until 10/2004) | European Commission |
| GeoGal | 06/2002 | 03/2004 | Geodetic Galileo: High accuracy applications of Galileo | Project leader | ESA |
| IERS GGFC SBL | 02/2002 | on-going | Special Bureau for Loading | Chair | National |
| OCTAS | 01/2002 | 12/2006 | Ocean Circulation and heat transport between the North Atlantic and the Arctic Sea | Project leader (until 09/2004) | Norwegian Research Council |
| ESEAS CB | 07/2001 | 01/2005 | Central Bureau for ESEAS | Director | National funding |
| COST 716 | 12/1998 | 05/2004 | Exploitation of ground-based GPS for Operational Numerical Weather Prediction and Climate Applications | Vice-chair | European Commission |
| COST 40 | 12/1997 | 12/2002 | European Sea Level Observing System | Chair (since 1998) | European Commission |