The data set used for this study was acquired for the 1-in-150-
year flood that took place on the lower Severn around Tewkesbury,
UK, in July 2007 (Mason et al., 2010). This resulted in substantial
flooding of urban and rural areas, about 1500 homes in Tewkesbury
being flooded. Tewkesbury lies at the confluence of the Severn,
flowing in from the northwest, and the Avon, flowing in from the
northeast. TerraSAR-X acquired a 3 m-resolution (1.5 m pixel spacing)
X-band StripMap image of the region, showing great detail of
the flooded urban areas. The TerraSAR-X incidence angle was 24◦,
and the image was multi-look ground range spatially enhanced.
The HH polarisation mode chosen provided good discrimination
between flooded and non-flooded regions. At the time of overpass,
there was relatively low wind speed and no rain. Contemporaneous
aerial photos of the flooding were also acquired, and these were
used to validate the flood extent extracted from the TerraSAR-X
image. The data set also included LiDAR data (2 m resolution, 0.1 m
height accuracy) of the un-flooded area. Further details of this data
set are given in Mason et al. (2010).
The data set used for this study was acquired for the 1-in-150-year flood that took place on the lower Severn around Tewkesbury,UK, in July 2007 (Mason et al., 2010). This resulted in substantialflooding of urban and rural areas, about 1500 homes in Tewkesburybeing flooded. Tewkesbury lies at the confluence of the Severn,flowing in from the northwest, and the Avon, flowing in from thenortheast. TerraSAR-X acquired a 3 m-resolution (1.5 m pixel spacing)X-band StripMap image of the region, showing great detail ofthe flooded urban areas. The TerraSAR-X incidence angle was 24◦,and the image was multi-look ground range spatially enhanced.The HH polarisation mode chosen provided good discriminationbetween flooded and non-flooded regions. At the time of overpass,there was relatively low wind speed and no rain. Contemporaneousaerial photos of the flooding were also acquired, and these wereused to validate the flood extent extracted from the TerraSAR-Ximage. The data set also included LiDAR data (2 m resolution, 0.1 mheight accuracy) of the un-flooded area. Further details of this dataset are given in Mason et al. (2010).
การแปล กรุณารอสักครู่..