NOAA
)gnize
on the
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B7, 2012
XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia
30
Figure 4. 17-16 September 1999 ERS Interferogram. Area in
red rectangle effected by tropospheric delay
According to these results it can be said that troposphere
delays can be really effective on radio signals not only GPS
signal but also the RADAR signals. Delay difference amount
for tandem imaging days for selected data can be reach up to
20cm to from 14 cm. This results shows us the importance of
delay in SAR processing, mainly interferograms can be
affected by any kind of tropospheric turbulence which cause
errors on height information in the most accurate technique
for finding changes in height, InSAR.
3. CONCLUSION
By taking into the consideration of region characteristics,
best fitted delay model for the region will be determined and
used in this study. An automatic flow or algorithm will be
created for integration of these delays with the SAR images
for fast and accurate correction. Tools like ArcGIS or
MATLAB will be used for automatic correction flow or a
Graphical User Interface (GUI) obtained using MATLAB.
As a result of this study, importance of atmospheric change
in Turkey climate will be pointed out using SAR and GPS
data integration with meteorological aspects. The importance
of CORS networks and densities for atmospheric
observations will be evaluated for Turkey. Also it will helpful
for further atmospheric and InSAR studies over Turkey and
(MAGNET) about potential earthquakes like Istanbul
earthquake (predicted as Mw=7).
References
Dach, R., Hugentobler, U., & Walser, P. (2009). Bernese
GPS Software Version 5.0 Tutorial. Processing. Bern:
Astronomical Institute, University of Bern.
Reilinger, R. E., Ergintav, S., Biirgmann, R., McClusky, S.,
Lenk, O., Barka, A., Gurkan, O., et al. (2000).
Coeseismic and Postseismic Fault Slip for the 17
August 1999, M=7.5, Izmit , Turkey Earthquake.
Science, 289, 1519-1524.
27
Rosen, P., Hensley, S., & Peltzer, G. (2004). Updated repeat
orbit interferometry package released. Eos,
Transactions, 85(5), 47. Retrieved from
http://europa.agu.org/?uri=/journals/eo/v085/i005/200
4EO050004.xml&view-article
Cakir, Z., Chabalier, J.-B. D., Armijo, R., Meyer, B., Barka,
A., & Peltzer, G. (2003). Coseismic and early post-
seismic slip associated with the 1999 Izmit earthquake
(Turkey), from SAR interferometry and tectonic field
observations. Geophysical Journal International,
155(1), 93-110. doi:10.1046/j.1365-
246X.2003.02001.x
