Dr.ir. H. (Hans) van der Marel

Profile

Hans van der Marel obtained his PhD (cum laude) in 1988 on the data analysis for ESA’s astronomical satellite Hipparcos. He was involved in Hipparcos until publication of the catalogue in 1997. Since 1989 he is working at the Delft University of Technology on Global Navigation Satellite Systems (GNSS) with focus on: GNSS permanent networks, the use of GNSS for atmospheric remote sensing, precise positioning and navigation, land surface motions, and scientific applications of GNSS in general.

Research themes

• Global Navigation Satellite Systems (GNSS)
• Volcano and Earthquake Deformation
• Radar
• Atmosphere

Research

My research focuses on continuously operating GNSS networks and the professional and scientific applications that result from these networks. My research involve analysis of GNSS data for deformation studies, development of algorithms for precise positioning and navigation, GPS atmospheric sensing and meteorology, and more recently GNSS reflections and integration of GPS with levelling and INSAR. What I like most about GNSS is the proverbial one man’s noise is another man’s signal, and vice versa.

Key publications

• On the Use of Transponders as Coherent Radar Targets for SAR Interferometry
  Pooja S. Mahapatra · Sami Samiei-Esfahany · Hans van der Marel · Ramon F. Hanssen, IEEE Transactions on Geoscience and Remote Sensing 03/2014; 52(3):1869-1878. DOI:10.1109/TGRS.2013.2255881
• Altimetry with GNSS-R interferometry: First proof of concept experiment
  Antonio Rius · Oleguer Nogués-Correig · Serni Ribó · Estel Cardellach · Santi Oliveras · Enric Valencia · Hyuk Park · José Miguel Tarongí · Adriano Camps · Hans van der Marel · Roel van Bree · Bas Altena · Manuel Martín-Neira
  GPS Solutions 04/2012; 16(2):231-241. DOI:10.1007/s10291-011-0225-9 ·
• Geometry-free undifferenced, single and double differenced analysis of single frequency GPS, EGNOS and GIOVE-A/B measurements. GPS Solutions
  Peter F. de Bakker, Hans van der Marel, Christian C. J. M. Tiberius
  GPS Solutions 09/2009; 13(4). DOI:10.1007/s10291-009-0123-6
• Observing three dimensional water vapour using a surface network of GPS receivers, S. De Haan · H. Van der Marel, Atmospheric Chemistry and Physics 09/2008; 8(5). DOI:10.5194/acpd-8-17193-2008
• COST716 demonstration project for the near real-time estimation of integrated water vapour from GPS, H van der Marel, Physics and Chemistry of the Earth Parts A/B/C 01/2004; 29(2):187-199. DOI:10.1016/j.pce.2004.01.001
• Integrated atmospheric water vapor estimates from a regional GPS network, Klein Baltink, H., H. van der Marel, and A. G. A. van der Hoeven, J. Geophys. Res., 107(D3), doi:10.1029/2000JD000094, 2002.
• Virtual GPS Reference Stations in the Netherlands, H. van der Marel, Proceedings of the 11th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1998), Nashville, TN, September 1998, pp. 49-58.
• The Hipparcos Catalogue, M. A. C. Perryman et al.,  Astronomy and Astrophysics 06/1997; 323(1):L49-L52.
• HIPPARCOS great-circle reduction - Theory, results and intercomparisons, Hans van der Marel · Carsten Petersen,  Astronomy and Astrophysics 04/1992; 258:60-69.

More publications

Educational activities

• CIE4604 Simulation and Visualization for Geosciences – MSc course
• CIE4522 GPS for Civil Engineering and Geosciences – MSc course
• CIE4615 Iceland Field Work – MSc field work
• CIE4606 Geodesy and Remote Sensing – MSc course (GPS lecture and practical)
• CIE5603 App development – MSc course

Projects

Over the years I have been involved in many interesting projects for ESA, EU, SRON and others. My favourite projects are: The HIPPARCOS data reduction in the framework of the FAST consortium (1982-1997), the European COST action (COST-716) for the exploitation of ground based GPS for climate and numerical weather predication applications (1999-2004), the International GNSS service (IGS) and EUREF (European Reference Frame). 

Software

Over the years I developed several pieces of software that I would like to share. You can find this software on the GNSS data server.