Title :
Use of Semivariograms to Identify Earthquake Damage in an Urban Area
Author :
Sertel, Elif ; Kaya, Sinasi ; Curran, Paul J.
Author_Institution :
Geodesy & Photogrammetry Dept., Istanbul Tech. Univ.
fDate :
6/1/2007 12:00:00 AM
Abstract :
The 1999 Izmit earthquake (Mw 7.4) on the North Anatolian Fault Zone resulted in severe damage to the urban areas of Izmit, Adapazari (Sakarya), Golcuk, and Yalova. A semivariogram approach was used to quantify earthquake-induced spatial variation and thereby the degree of damage in the Adapazari inner city. Semivariograms were calculated for 24 transects on SPOT high resolution visible infrared (HRVIR) panchromatic images obtained before and after the earthquake. The differences between the pre- and postearthquake semivariogram shape and measures of shape, range, nugget, and sill were related to the severity of earthquake damage
Keywords :
disasters; earthquakes; geophysical signal processing; image processing; remote sensing; AD 1999; Adapazari; Golcuk; HRVIR panchromatic images; Izmit; North Anatolian Fault Zone; SPOT images; Sakarya; Yalova; earthquake damage identification; earthquake induced spatial variation; high resolution visible infrared images; post-earthquake semivariogram; pre-earthquake semivariogram; semivariograms; urban area; Cities and towns; Earthquakes; Heart rate variability; Image resolution; Infrared imaging; Remote sensing; Seismic measurements; Shape measurement; Spatial resolution; Urban areas; Data processing; earthquakes; remote sensing; urban areas;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2007.894019
