Research interests:

My research interests relate to understanding the movement of water around the world, particularly changes that affect sea-level. This very complex issue requires a huge joint effort by scientists around the world using a wide range of techniques. My contribution falls into two parts:

-striving to improve measurement of land motion by improving the capabilities of precise GPS processing and our understanding of the errors

-performing precise GPS processing for applications of interest and interpreting the results. Vertical movement is particularly challenging and is very important for understanding sea level change and glacial isostatic adjustment.

Applications

My main current project is working with Antarctic GPS data to produce vertical rates and assess their errors as part of the RATES and REGINA projects. I am working with two international teams headed by Jonathan Bamber (Bristol) and Ingo Sasgen (GFZ).

Career history:

Present: Lecturer (Geography), University of Glasgow

May 2010–Aug 2014: Research Associate, Newcastle University, UK

Oct 2006–Jul 2010: PhD in Satellite Geodesy, Newcastle University, UK

Active research projects:

Not available

Recent publications:

Martin-Espanol, A. et al. (2016) Spatial and temporal Antarctic ice sheet mass trends, glacio-isostatic adjustment, and surface processes from a joint inversion of satellite altimeter, gravity, and GPS data. Journal of Geophysical Research: Earth Surface, (doi:10.1002/2015JF003550) (Early Online Publication)

Gazeaux, J. et al. (2013) Detecting offsets in GPS time series: First results from the detection of offsets in GPS experiment. Journal of Geophysical Research: Solid Earth, 118(5), pp. 2397-2407. (doi:10.1002/jgrb.50152)

Petrie, E. J., Hernández-Pajares, M., Spalla, P., Moore, P., and King, M. A. (2011) A review of higher order ionospheric refraction effects on dual frequency GPS. Surveys in Geophysics, 32(3), pp. 197-253. (doi:10.1007/s10712-010-9105-z)

Lavallée, D.A., Moore, P., Clarke, P.J., Petrie, E.J., van Dam, T., and King, M.A. (2010) J2: An evaluation of new estimates from GPS, GRACE, and load models compared to SLR. Geophysical Research Letters, 37(22), (doi:10.1029/2010GL045229)

Petrie, E. J., King, M. A., Moore, P., and Lavallée, D. A. (2010) A first look at the effects of ionospheric signal bending on a globally processed GPS network. Journal of Geodesy, 84(8), pp. 491-499. (doi:10.1007/s00190-010-0386-2)