A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate Measurement
It is well known that the most accurate method to detect changes of height is the geodetic precise leveling method. Due to the high demand work and time needed for precise leveling alternative methods are studied to obtain high quality height information. Differential SAR interferometry techniques s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2013-08-01
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| Series: | ISPRS International Journal of Geo-Information |
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| Online Access: | http://www.mdpi.com/2220-9964/2/3/797 |
| _version_ | 1818324155400978432 |
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| author | Paavo Rouhiainen Jarkko Koskinen Veikko Saaranen Juha Hyyppä Mika Karjalainen Kirsi Karila |
| author_facet | Paavo Rouhiainen Jarkko Koskinen Veikko Saaranen Juha Hyyppä Mika Karjalainen Kirsi Karila |
| author_sort | Paavo Rouhiainen |
| collection | DOAJ |
| description | It is well known that the most accurate method to detect changes of height is the geodetic precise leveling method. Due to the high demand work and time needed for precise leveling alternative methods are studied to obtain high quality height information. Differential SAR interferometry techniques such as the Persistent Scatterer Interferometry (PSI) method are studied to detect millimeter level deformations in urban areas. Additionally, SAR analysis will provide spatially extensive information on subsidence. On the other hand, PSI subsidence rates have not yet been comprehensively compared to the precise leveling measurements of the subsidence of individual buildings. Typically subsidence rates are interpolated to a continuous spatial surface, but in this study, spatially discontinuous subsidence was measured for a set of individual buildings. Therefore, we conducted three precise leveling campaigns and measured in total 82 geodetic-grade bolts, which were tightly attached to the building foundations. Moreover, we used additional leveling data (obtained from the local authorities), which contained long time series of leveling data for individual buildings. In the present study, ERS and ENVISAT satellite SAR data were processed using a PSI algorithm and the results were compared to leveling data of individual buildings. |
| first_indexed | 2024-12-13T11:24:05Z |
| format | Article |
| id | doaj.art-49c7becbf07446aca360051d1dd6a467 |
| institution | Directory Open Access Journal |
| issn | 2220-9964 |
| language | English |
| last_indexed | 2024-12-13T11:24:05Z |
| publishDate | 2013-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ISPRS International Journal of Geo-Information |
| spelling | doaj.art-49c7becbf07446aca360051d1dd6a4672022-12-21T23:48:20ZengMDPI AGISPRS International Journal of Geo-Information2220-99642013-08-012379781610.3390/ijgi2030797A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate MeasurementPaavo RouhiainenJarkko KoskinenVeikko SaaranenJuha HyyppäMika KarjalainenKirsi KarilaIt is well known that the most accurate method to detect changes of height is the geodetic precise leveling method. Due to the high demand work and time needed for precise leveling alternative methods are studied to obtain high quality height information. Differential SAR interferometry techniques such as the Persistent Scatterer Interferometry (PSI) method are studied to detect millimeter level deformations in urban areas. Additionally, SAR analysis will provide spatially extensive information on subsidence. On the other hand, PSI subsidence rates have not yet been comprehensively compared to the precise leveling measurements of the subsidence of individual buildings. Typically subsidence rates are interpolated to a continuous spatial surface, but in this study, spatially discontinuous subsidence was measured for a set of individual buildings. Therefore, we conducted three precise leveling campaigns and measured in total 82 geodetic-grade bolts, which were tightly attached to the building foundations. Moreover, we used additional leveling data (obtained from the local authorities), which contained long time series of leveling data for individual buildings. In the present study, ERS and ENVISAT satellite SAR data were processed using a PSI algorithm and the results were compared to leveling data of individual buildings.http://www.mdpi.com/2220-9964/2/3/797persistent scatterer interferometry PSIprecise levelingdiscontinuous urban subsidenceSARTurku |
| spellingShingle | Paavo Rouhiainen Jarkko Koskinen Veikko Saaranen Juha Hyyppä Mika Karjalainen Kirsi Karila A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate Measurement ISPRS International Journal of Geo-Information persistent scatterer interferometry PSI precise leveling discontinuous urban subsidence SAR Turku |
| title | A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate Measurement |
| title_full | A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate Measurement |
| title_fullStr | A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate Measurement |
| title_full_unstemmed | A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate Measurement |
| title_short | A Comparison of Precise Leveling and Persistent Scatterer SAR Interferometry for Building Subsidence Rate Measurement |
| title_sort | comparison of precise leveling and persistent scatterer sar interferometry for building subsidence rate measurement |
| topic | persistent scatterer interferometry PSI precise leveling discontinuous urban subsidence SAR Turku |
| url | http://www.mdpi.com/2220-9964/2/3/797 |
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