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Multiscale Visualization of Surface Motion Point Measurements Associated with Persistent Scatterer Interferometry

Authors :
Panagiotis Kalaitzis
Michael Foumelis
Antonios Mouratidis
Dimitris Kavroudakis
Nikolaos Soulakellis
Source :
ISPRS International Journal of Geo-Information, Vol 13, Iss 7, p 236 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

Persistent scatterer interferometry (PSI) has been proven to be a robust method for studying complex and dynamic phenomena such as ground displacement over time. Proper visualization of PSI measurements is both crucial and challenging from a cartographic standpoint. This study focuses on the development of an interactive cartographic web map application, providing suitable visualization of PSI data, and exploring their geographic, cartographic, spatial, and temporal attributes. To this end, PSI datasets, generalized at different resolutions, are visualized in eight predefined cartographic scales. A multiscale generalization algorithm is proposed. The automation of this procedure, spurred by the development of a web application, offers users the flexibility to properly visualize PSI datasets according to the specific cartographic scale. Additionally, the web map application provides a toolset, offering state-of-the-art cartographic approaches for exploring PSI datasets. This toolset consists of exploration, measurement, filtering (based on the point’s spatial attributes), and exporting tools customized for PSI measurement. Furthermore, a graph tool, offering users the capability to interactively plot PSI time-series and investigate the evolution of ground deformation over time, has been developed and integrated into the web interface. This study reflects the need for appropriate visualization of PSI datasets at different cartographic scales. It is shown that each original PSI dataset possesses a suitable cartographic scale at which it should be visualized. Innovative cartographic approaches, such as web applications, can prove to be effective tools for users working in the domain of mapping and monitoring the dynamic behavior of surface motion.

Details

Language :
English
ISSN :
22209964
Volume :
13
Issue :
7
Database :
Directory of Open Access Journals
Journal :
ISPRS International Journal of Geo-Information
Publication Type :
Academic Journal
Accession number :
edsdoj.835987a64afe46a2ae20a8dbac2f929a
Document Type :
article
Full Text :
https://doi.org/10.3390/ijgi13070236