Evaluation of TerraSAR-X Observations for Wetland InSAR Application

Hong, Sungeon; Wdowinski, S.; Kim, Sang Wan

doi:10.1109/tgrs.2009.2026895

Cited by 90 publications

(22 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The 92-days interferogram observations are located almost in opposite sides of the tide amplitude cycle, allowing InSAR to better detect differences in the tide inundation level. With the 3-5 cm accuracy of L-band observations [8,10], the patterns inferred from the fringes, which are in the range of 7-30 cm, bearing the method uncertainty level and hence conclusions made are solid.…”

Section: Discussionmentioning

confidence: 91%

“…With the 3-5 cm accuracy of L-band observations [8,10], the patterns inferred from the fringes, which are in the range of 7-30 cm, bearing the method uncertainty level and hence conclusions made are solid.…”

Section: Discussionmentioning

confidence: 91%

“…The inland fringe patterns are mostly a result of water level changes in wetlands or agriculture activities, like the ones on the central area of tracks 168 and 167. Long wavelength fringes (20-40 km) in the north part of the interferogram from track 165 and 168 are most likely phase changes due to atmospheric effects [10]. Fringe discontinuities occur along swath edges, because the selected interferograms are from different time periods and, hence, represent distinct signal response according to phase changes of each interferogram.…”

Section: Resultsmentioning

confidence: 99%

“…Studies have shown that InSAR observations can detect water level change with 3-5 cm accuracy level over wide wetland areas (e.g., [8][9][10][11]). InSAR measures phase difference between two SAR acquisitions from roughly the same location in space.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

InSAR-Based Mapping of Tidal Inundation Extent and Amplitude in Louisiana Coastal Wetlands

Oliver-Cabrera

Wdowinski

2016

Remote Sensing

View full text Add to dashboard Cite

Abstract:The Louisiana coast is among the most productive coastal areas in the US and home to the largest coastal wetland area in the nation. However, Louisiana coastal wetlands have been disappearing at an alarming rate due to natural and anthropogenic processes, including sea level rise, land subsidence and infrastructure development. Wetland loss occurs mainly along the tidal zone, which varies in width and morphology along the Louisiana shoreline. In this study, we use Interferometric Synthetic Aperture Radar (InSAR) observations to detect the extent of the tidal inundation zone and evaluate the interaction between tidal currents and coastal wetlands. Our data consist of ALOS and Radarsat-1 observations acquired between 2006-2011 and 2003-2008, respectively. Interferometric processing of the data provides detailed maps of water level changes in the tidal zone, which are validated using sea level data from a tide gauge station. Our results indicate vertical tidal changes up to 30 cm and horizontal tidal flow limited to 5-15 km from open waters. The results also show that the tidal inundation is disrupted by various man-made structures, such as canals and roads, which change the natural tidal flow interaction with the coast.

show abstract

Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

InSAR-Based Mapping of Tidal Inundation Extent and Amplitude in Louisiana Coastal Wetlands

Oliver-Cabrera

Wdowinski

2016

Remote Sensing

View full text Add to dashboard Cite

show abstract

“…However, the fact that coherent InSAR observations can be obtained in wetlands indicates that they are stable for SAR scattering and can maintain phase over weeks and months (Kim et al, 2013). Indeed, the method has been successfully applied to study wetland hydrology in the Everglades (Wdowinski et al, 2004(Wdowinski et al, , 2008Hong et al, 2010), in Louisiana (Kim et al, 2009;Kwoun and Lu, 2009), and at other locations (e.g., Gondwe et al, 2010).…”

Section: B Y S H I M O N W D O W I N S K I S a N G -H O O N H O N Gmentioning

confidence: 99%