Prior leveling data along the Mornos aqueduct had been obtained in 1984. No height data were available for the intermediate time interval 1984-2001; however no major seismic event had taken place in that period. The two co-seismic ARQ197 clinical trial sets of leveling data were considered AZD9291 EGFR adequate Inhibitors,Modulators,Libraries to investigate the vertical displacement in the affected by the earthquake area and verify the InSAR derived observations. Figure 1(a) illustrates the leveling path legs and the Mornos aqueduct projected onto the 1:50,000-scale map. Figure 1(b) Inhibitors,Modulators,Libraries shows the area where leveling data were acquired, projected onto the calculated interferogram. The test area extends from 38��09��N 23��31��E to 38��06��N 23��38��E.Figure 1.

(a) Plots of the Mornos aqueduct (blue) and height network (red) projected on 1:50000-scale map and (b) onto an ERS-2 SAR image interferogram.

The scope of this paper is the evaluation of the InSAR derived displacement field caused by the Sept 7, 1999 Athens earthquake, using as reference an external data source Inhibitors,Modulators,Libraries provided by terrestrial surveying along the Mornos river open aqueduct. Research works relating to InSAR �C leveling interoperability issues have been published Inhibitors,Modulators,Libraries in the past, focusing on either verifying the InSAR derived subsidence, or integrating them with Inhibitors,Modulators,Libraries the leveling data to increase the reliability of the measurement. In [10] a spatially dense network of leveling benchmarks was used, to Inhibitors,Modulators,Libraries integrate terrestrial measurements Inhibitors,Modulators,Libraries with InSAR data, and sums of Gaussian surfaces were proposed to approximate the subsidence field induced from oil/gas extraction activity.

Moreover, in [11] a method to improve the InSAR derived deformation field was presented, by splitting the differences between InSAR and leveling derived assessments to two components: one mathematical model accounted for the mean tropospheric effects and orbital errors, and a second model Inhibitors,Modulators,Libraries was used Brefeldin_A to describe for the local, less correlated error sources, such as Digital Elevation Model (DEM) errors and local atmospheric effects. By approximating models with polynomials and by generating a non �C mathematical model for the residuals of the approximations, corrections for the InSAR derived deformations were produced for the entire SAR image.

In [12] a study for mine subsidence monitoring using ERS-1/2 and JERS-1/2 Cilengitide was investigated, combining the resulted subsidence with ground-collected data.

In [13] InSAR derived www.selleckchem.com/products/PD-0332991.html deformations were compared and correlated with temporally dense leveling data for settlements monitoring in the reclaimed land under of the new Hong Kong international airport and the Fairview Park.This paper is structured as follows: section 2 refers to the preliminary processing of the input data, namely the InSAR and leveling measurements. Section 3 presents in an analytic way the distinct steps in rendering the two data sets compatible.