XXII ISPRS Congress 2012: Technical Commission VII

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Multivolume work

Persistent identifier:: 1663813779

Title:: XXII ISPRS Congress 2012

Sub title:: Melbourne, Australia, 25 August-1 September 2012

Year of publication:: 2013

Place of publication:: Red Hook, NY

Publisher of the original:: Curran Associates, Inc.

Identifier (digital):: 1663813779

Language:: English

Additional Notes:: Kongress-Thema: Imaging a sustainable future

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Document type:: Multivolume work

Volume

Persistent identifier:: 1663821976

Title:: Technical Commission VII

Scope:: 546 Seiten

Year of publication:: 2013

Place of publication:: Red Hook, NY

Publisher of the original:: Curran Associates, Inc.

Identifier (digital):: 1663821976

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(39,B7)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist ermittelt.; Literaturangaben

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: [VII/2: SAR INTERFEROMETRY]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: INSAR ATMOSPHERIC DELAY MIGITIGATION BY GPS; CASE STUDY IZMIT EARTQUAKE INTERFEROGRAMS M. U. Altin, E, Tari, L. Ge

Document type:: Multivolume work

Structure type:: Chapter

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 INSAR ATMOSPHERIC DELAY MIGITIGATION BY GPS; CASE STUDY IZMIT EARTQUAKE INTERFEROGRAMS M.U. Altin* *, E, Tari*, L. Ge° * ITU, Civil Engineering Faculty, 80626 Maslak Istanbul, Turkey — (altinm, tari)@itu.edu.tr ^ UNSW, School of Surveying and Spatial Inf. Sys., Kensington, NSW 2052, Australia ge@unsw.edu.au KEY WORDS: GPS, SAR, InSAR, Troposphere, Turkey ABSTRACT: The Propagation delay when radar signals travel from the troposphere has been one of the major limitations for the applications of high accuracy Interferometric Synthetic Aparture Radar (InSAR). In this GPS data used for defining meteorological effects on radio signals. 1999 Izmit earthquake is chosen for the case study of tropospheric effects on InSAR images according to previous studies. Due to process of GPS data with BERNESE tropospheric delay model gained and compared with ROI PAC processed interferograms and it can easy figured out that the delay amounts are really reliable. 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. 1. INTRODUCTION Earth sciences are developed in last decades with the development of space technologies especially in space geodesy and remote sensing. Global Navigation Satellite Systems (GPS) and remote sensing sensors are highly affected from these fast developments. As known space geodesy is based on electromagnetic waves and their reflection from earth surface. Variation in the refractive index of the atmosphere causes changes in the electromagnetic waves propagating through it. Therefore corrections of these atmospheric effects should be determined and applied with the assessed measurements. Atmospheric effects grouped in two types; ionospheric and tropospheric effects. Ionospheric effects can be removed by signal combinations during data processing. Tropospheric effects are directly related to troposphere and cannot be removed but can be modeled. The aim this of study is the correction of troposphere effects over Synthetic Aperture Radar (SAR) images and interferograms by using acquired GPS measurements in Izmit, Turkey. Turkey is divided into seven regions due to socio-economical, administrative, climate and natural (soil, vegetation) similarities of related land. Izmit Province (40° 45°N 30° 01’E) which is in Marmara Region. Marmara has the largest share in production and industry of Turkey. The area is just 23 on the North Anatolian Fault (NAF), which extends from Karliova in Eastern Turkey to the Gulf of Saros in the Northern Aegean Sea, is one of the longest active strike-slip faults in the world with about 1500km length and hit region 2 times with large earthquakes in 17 August and 12 November 1999 with 7.4 and 7.2 Mw. After these earthquakes Ziyadin Cakir and Rob Reilinger worked with the SAR data and publish papers by the help of these papers using InSAR technique for deformation monitoring to get more current insight in Turkey.(Cakir et al., 2003)(Reilinger et al., 2000) 2. GPS AND SAR DATA The data for this study are GPS and ERSI/2 tandem SAR images before and after earthquake (12-13 August 1999 and 16-17 September 1999). GPS data is gathered form Marmara GPS Network (MAGNET) continuous operated GPS network which is designed and managed by TUBITAK Marmara Research Center and SAR images are taken from Dr. Ziyadin Cakir (Istanbul Technical University). (Figure 1) Open source software is chosen for image and GPS data analysis. BERNESE software used for troposphere modeling due to capabilities of modeling time interval to get the more

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