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Nighttime lights time series of tsunami damage recovery and economic metrics in Sumatra Indonesia

机译:印度尼西亚苏门答腊岛夜间照明系统的海啸破坏恢复和经济指标的时间序列

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摘要

On 26 December 2004, a magnitude 9.2 earthquake off the west coast of the northern Sumatra, Indonesia resulted in 160,000 Indonesians killed. We examine the Defense Meteorological Satellite Program-Operational Linescan System (DMSP-OLS) nighttime light imagery brightness values for 307 communities in the Study of the Tsunami Aftermath and Recovery (STAR), a household survey in Sumatra from 2004 to 2008. We examined night light time series between the annual brightness and extent of damage, economic metrics collected from STAR households and aggregated to the community level. There were significant changes in brightness values from 2004 to 2008 with a significant drop in brightness values in 2005 due to the tsunami and pre-tsunami nighttime light values returning in 2006 for all damage zones. There were significant relationships between the nighttime imagery brightness and per capita expenditures, and spending on energy and on food. Results suggest that Defense Meteorological Satellite Program nighttime light imagery can be used to capture the impacts and recovery from the tsunami and other natural disasters and estimate time series economic metrics at the community level in developing countries.
机译:2004年12月26日,印度尼西亚北部苏门答腊岛西海岸发生9.2级地震,造成160,000印度尼西亚人丧生。我们在2004年至2008年苏门答腊的一项家庭调查中,研究了307个社区的国防气象卫星计划-运行线扫描系统(DMSP-OLS)夜间光成像亮度值。每年亮度和破坏程度之间的光照时间序列,从STAR家庭收集并汇总到社区的经济指标。从2004年到2008年,亮度值发生了显着变化,由于所有损坏区域的海啸和海啸前夜间光照值在2006年恢复,2005年的亮度值显着下降。夜间图像亮度和人均支出与能源和食品支出之间存在显着的关系。结果表明,国防气象卫星计划夜间光成像可用于捕获海啸和其他自然灾害的影响和恢复,并估计发展中国家社区一级的时间序列经济指标。

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