Imperial College London

Dr Philippa J Mason

Faculty of EngineeringDepartment of Earth Science & Engineering

Senior Teaching Fellow



+44 (0)20 7594 6528p.j.mason Website




G31Royal School of MinesSouth Kensington Campus






BibTex format

author = {Scoular, J and Ghail, R and Lawrence, J and Mason, P and Bellhouse, M and Holley, R and Morgan, T},
doi = {10.3390/rs12050849},
journal = {Remote Sensing},
pages = {1--19},
title = {Retrospective InSAR analysis of East London during the construction of the Lee Tunnel},
url = {},
volume = {12},
year = {2020}

RIS format (EndNote, RefMan)

AB - The Lee Tunnel was constructed as the first part of the Thames Tideway Improvement scheme, between 2010 and 2016. With tunnelling for the East section of the main Thames Tideway Tunnel, which joins the Lee Tunnel at Abbey Mills Pumping Station, beginning in early 2020, this paper investigates patterns of deformation in East London during construction of the Lee Tunnel. An unexpected geological feature, later identified as a drift filled hollow, was discovered during tunnelling. This study demonstrates that had eight years of ERS Persistent Scatterer Interferometry (PSI) data been analysed prior to tunnelling, the unusual pattern of displacement may have been recognised and further targeted borehole investigations taken place before the launch of the tunnel boring machine. Results also show how areas of different land use, including cemeteries and historic landfill, exhibit differences in settlement behaviour, compared with surrounding terraced housing. This research highlights the challenges in interpreting PSI results in an urban area with ongoing construction and the value of a long archive of data, which now spans almost three decades in London, that can be used to establish a baseline prior to construction.
AU - Scoular,J
AU - Ghail,R
AU - Lawrence,J
AU - Mason,P
AU - Bellhouse,M
AU - Holley,R
AU - Morgan,T
DO - 10.3390/rs12050849
EP - 19
PY - 2020///
SN - 2072-4292
SP - 1
TI - Retrospective InSAR analysis of East London during the construction of the Lee Tunnel
T2 - Remote Sensing
UR -
UR -
UR -
VL - 12
ER -