Next Article in Journal
Visual Analysis for Nowcasting of Multidimensional Lightning Data
Previous Article in Journal
Semantic Interoperability of Sensor Data with Volunteered Geographic Information: A Unified Model
Article Menu

Export Article

Open AccessArticle
ISPRS Int. J. Geo-Inf. 2013, 2(3), 797-816; doi:10.3390/ijgi2030797

A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate Measurement

Finnish Geodetic Institute, Geodeetinrinne 2, FI-02431 Masala, Finland
*
Author to whom correspondence should be addressed.
Received: 20 June 2013 / Revised: 1 August 2013 / Accepted: 15 August 2013 / Published: 21 August 2013
View Full-Text   |   Download PDF [1298 KB, uploaded 21 August 2013]   |  

Abstract

It is well known that the most accurate method to detect changes of height is the geodetic precise leveling method. Due to the high demand work and time needed for precise leveling alternative methods are studied to obtain high quality height information. Differential SAR interferometry techniques such as the Persistent Scatterer Interferometry (PSI) method are studied to detect millimeter level deformations in urban areas. Additionally, SAR analysis will provide spatially extensive information on subsidence. On the other hand, PSI subsidence rates have not yet been comprehensively compared to the precise leveling measurements of the subsidence of individual buildings. Typically subsidence rates are interpolated to a continuous spatial surface, but in this study, spatially discontinuous subsidence was measured for a set of individual buildings. Therefore, we conducted three precise leveling campaigns and measured in total 82 geodetic-grade bolts, which were tightly attached to the building foundations. Moreover, we used additional leveling data (obtained from the local authorities), which contained long time series of leveling data for individual buildings. In the present study, ERS and ENVISAT satellite SAR data were processed using a PSI algorithm and the results were compared to leveling data of individual buildings. View Full-Text
Keywords: persistent scatterer interferometry PSI; precise leveling; discontinuous urban subsidence; SAR; Turku persistent scatterer interferometry PSI; precise leveling; discontinuous urban subsidence; SAR; Turku
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Karila, K.; Karjalainen, M.; Hyyppä, J.; Koskinen, J.; Saaranen, V.; Rouhiainen, P. A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate Measurement. ISPRS Int. J. Geo-Inf. 2013, 2, 797-816.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
ISPRS Int. J. Geo-Inf. EISSN 2220-9964 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top