DefSAR

Acronym: DefSAR

Programme: National Centre for Research and Development - Program Badań Stosowanych PBS 2; path B

Contract No.: PBS2/B2/13/2014

Project implementation period of time: 1.03.2014 – 30.09.2017

Total value of the project: PLN 7 461 267

ITB’s budget: PLN 522 111

Coordinator on behalf of ITB: Stanisław Łukasik, PhD

Leader/Coordinating organisation: INSTYTUT GEODEZJI I KARTOGRAFII (INSTITUTE OF GEODESY AND CARTOGRAPHY)

Participants:

INSTYTUT TECHNIKI BUDOWLANEJ (Building Research Institute)

WARSZAWSKIE PRZEDSIĘBIORSTWO GEODEZYJNE (the Warsaw Surveying Company SA)

Short description: the main aim of the project was to elaborate the integrated system for monitoring ground deformations using satellite radar interferometry with PSInSAR persistent scatters, precise levelling and measurements from permanent GNSS stations. The research is carried out within Warsaw area and in its surroundings. The study is done both for large area movements of Warsaw Pan and for local deformations caused by metro construction and other elements of infrastructure.

In the radar interferometry project the following types of microwave data are used:

• ERS-1/2 data collected from 1992 till 2010 (over 300 images)
• ENVISAT data collected between 202 and 2010 (over 200 images), acquired from nine different ascending and descending orbits
• High-resolution CosmoSkymed images collected from 2011 till 2016 (over 100 images)

Measurements from permanent GPS stations will serve for absolute georeferencing of the results, while precise levelling and the dedicated experiment will be used for assessing accuracy of the proposed solution. Determination of local and regional ground deformations will be interpreted in the context of geological structure of the study area and impact of technical infrastructure objects on ground.