Atmospheric phase delay correction of PS-InSAR to Monitor Land Subsidence in Surabaya

Ulma, Toifatul; Anjasmara, Ira Mutiara; Hayati, Noorlaila

doi:10.1088/1755-1315/936/1/012033

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…The subsidence value of the observation point in this area has a significant value compared to the land subsidence that occurred in the eastern or southern regions. These results are in agreement with the studies by Ulma et al [7] that monitoring land subsidence by PS-InSAR. In terms of geology, subsidence occurs in alluvial areas which are still undergoing a process of compaction and consolidation.…”

Section: Figure 2 Velocity Rate Of Surabayasupporting

confidence: 94%

Monitoring Land Subsidence and its Effect on Surabaya Coastal Inundation by Utilizing GPS Campaigns Data

Riastama

Anjasmara

Maulida

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Land subsidence is a process of land movement based on a certain datum (geodetic reference frame) in which there are various variables causing it. This phenomenon occurs in many big cities in Indonesia, which is the city of Surabaya. The Surabaya city has a type of soil in the form of alluvial soil which is prone to movement. The accumulation of land subsidence that occurs will certainly cause its own losses. As a result, it can damage urban infrastructure so that in the future it can cause disruption to the environment, economic activities, and social life in the region. In addition, the Surabaya area is also a coastal area. Coastal areas have characteristics where this area will be strongly influenced by natural events. One of the natural events that affect the oceans and coastal areas is global temperature changes. The phenomenon of global temperature changes can affect sea level rise. If sea level rise occurs accompanied by an increase in the rate of land subsidence, this can result in flooding or inundation in coastal areas. Considering that the city of Surabaya is a metropolitan city that has a high population density and a continuous level of development, mitigation efforts are important in following up on land subsidence in this area. One of the efforts that can be applied is by conducting GPS observations. The outcomes of the GPS observations were then processed using scientific software in the form of GAMIT/GLOBK. According to the study’s findings indicated that Surabaya is experiencing land subsidence in the northern and eastern coastal areas with a range of 0.2 – 83.3 mm/year. The point that experienced a significant decline was in the border area of Tandes and Asemrowo, namely station BM35. Furthermore, land subsidence conditions influence the extent of tidal inundation, where in 2032 tidal inundation will inundate 105.411 km2.

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Section: Figure 2 Velocity Rate Of Surabayasupporting

confidence: 94%

Monitoring Land Subsidence and its Effect on Surabaya Coastal Inundation by Utilizing GPS Campaigns Data

Riastama

Anjasmara

Maulida

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Thus, an effective GACOS correction can help reduce the influence of tropospheric impacts on the study area. However, the accuracy of the turbulence recordings within the GACOS product determines the potential correction effect [4].…”

Section: Resultsmentioning

confidence: 99%

“…Multi-Temporal Interferometric SAR (MT-InSAR) analysis technique can provide spatially continuous measurements of the ground deformation [2] and monitoring of tectonic-induced geological phenomena [3]. Several researchers use the geodetic method, such as the implementation of the InSAR technique as already done by Ulma et al [4], Ayani et al [5], and the GNSS technique by Anjasmara et al [6] to detect ground deformation 1127 (2023) 012007 IOP Publishing doi:10.1088/1755-1315/1127/1/012007 2 by only taking a case study from one of the cities, Surabaya, traversed by the Kendeng Fault. In contrast, each segment of the Kendeng Fault has a different and complex geological structure.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Ground Deformation around The Segments of Kendeng Fault in East Java 2017-2020 using Multi-Temporal InSAR Analysis with GACOS Correction Product

Syahputri

Anjasmara

Hayati

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Multi-Temporal Interferometric SAR (MT-InSAR) analysis technique can provide spatially continuous measurements of the ground deformation and monitoring caused by the movement of four segments in the Kendeng Fault, East Java. Most ground deformation in these segments is indicated by the dominance of local thrust movements, folds, and the seismic density of earthquakes. In this study, ground deformation detection was carried out using the Small Baseline Subset Algorithm in the MT-InSAR process with the tropospheric correction from GACOS to determine ground deformation during 2017-2020. The percentage of change in the deformation velocity value resulting from applying the GACOS correction is up to 33.8% compared to without the tropospheric correction. The most significant troposphere effect correction is the area around the Cepu segments, which are dominated by high elevation thrust and folds. The results of the mean LOS velocity around the southern segments of Cepu, Waru, and Surabaya based on the Sentinel 1A SAR represent the occurrence of land subsidence in the south part of the area around segments with values ranging from 3.0 mm/yr to 6.0 mm/yr. Thus, the deformation effect causes land subsidence in the area around the delineation of the northern fault segment up to -3.0 mm/yr.

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“…The results of [27] also indicated that InSAR-derived land deformation data on a monthly scale could be used for characterization of the hydraulic head and aquifer properties in con ned aquifer systems, even those experiencing signi cant subsidence. Although data availability has been greatly improved by Sentinel-1, there are still barriers to analysis of satellite images and has been used for different applications such as land subsidence estimation [27,40,41,42], landslide estimation [43,44], and earthquake and other deformation estimation [45,46]. The motivation for choosing GMTSAR in this paper was due to its high processing performance, C-shell scripting susceptibility, good potential for parallel implementation, and free access compared to other commercial SBAS processing systems (such as SARscape -https://l3harrisgeospatial.com and GAMMA [47]).…”

Section: Introductionmentioning

confidence: 99%

Use of InSAR Data for the Measurement of Land Subsidence in Response to Groundwater Fluctuations and Climate Change (Case Study: Ardabil Plain, Iran)

Ghorbani

Khosravi

Mojtahedi

et al. 2022

Preprint

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The Ardabil plain, with an approximate area of 1097.2 km² in northwestern Iran, has experienced land subsidence due to intensive groundwater withdrawal and long seasons of drought in recent years. Different techniques have been used to investigate and evaluate subsidence in this region including: Global Positioning Systems (GPS), Levelling, and Geotechnical methods. These methods are typically expensive, time-consuming, and identify only a small fraction of the areas prone to subsidence. This study employs an Interferometric Synthetic Aperture Radar (InSAR) technique to measure the long-term subsidence of the plain. An open-source SAR interferometry time series analysis package, LiCSBAS, that integrates with the automated Sentinel-1 InSAR processor (COMET-LiCSAR) is used to analyze Sentinel-1 satellite images from October 2014 to January 2021. Processing of Sentinel-1 images shows that the Ardabil plain has been facing rapid subsidence due to groundwater pumping and reduced rainfall, especially between May 2018 to January 2019. The maximum subsidence rate was 45 mm/yr, measured at the southeastern part of the plain. While providing significant advantages (less processing time and disk space) over other InSAR processing packages, implementation of the LiCSBAS processing package and its accuracy for land subsidence measurements at different scales needs further evaluation. This study provides a procedure for evaluating its efficiency and accuracy for land subsidence measurements by comparing its measurements with the results of the GMTSAR and geotechnical numerical modeling. The results of geotechnical numerical modeling showed land subsidence with an average annual rate of 3.8 cm between 2006 and 2020, which was close to measurements using the InSAR technique. Comparison of the subsidence measurements of the Ardabil plain using the LiCSBAS package with results obtained from other techniques shows that LiCSBAS is able to accurately detect land deformation at large scales (~ km). However, they may not be optimized for more local deformations such as infrastructure monitoring.

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Atmospheric phase delay correction of PS-InSAR to Monitor Land Subsidence in Surabaya

Cited by 6 publications

References 13 publications

Monitoring Land Subsidence and its Effect on Surabaya Coastal Inundation by Utilizing GPS Campaigns Data

Monitoring Land Subsidence and its Effect on Surabaya Coastal Inundation by Utilizing GPS Campaigns Data

Investigation of Ground Deformation around The Segments of Kendeng Fault in East Java 2017-2020 using Multi-Temporal InSAR Analysis with GACOS Correction Product

Use of InSAR Data for the Measurement of Land Subsidence in Response to Groundwater Fluctuations and Climate Change (Case Study: Ardabil Plain, Iran)

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