StripMap scenes are acquired at 3m resolution and cover a 30km-wide swath with a typical length of 50km (also extendable to 1,650km). In parallel with acquisition planning goes a search for existing pre-event data. U.S. Geological Survey, pp 91-239Cui P, Liu SQ et al (2003) Debris flow prevention pattern in national parks: taking the world natural heritage Jiuzhaigou as an example. J Eng Geol 16(4):433–444 (in Chinese)This research was supported by State Key fundamental Research Program (973) project (2008CB425802) The authors acknowledge the contributions of Si-ming He, Yong You, Zhan-lu Li, Cao Dang, and Chen-lin Yang, who were involved in the field investigations, and several postgraduate students, who did some of the geohazard mapping. On Monday, May 12, 2008, a devastating mega-earthquake of magnitude 8.0 struck the Wenchuan area, northwestern Sichuan Province, China. Fatalities approaching a total of 15,000 occurred, with a significant number resulting from four types of seismically triggered geohazards—rock avalanches and landslides, landslide-dammed lakes (“earthquake lakes”), and debris flows. [15] It is also known as the Wenchuan earthquake (Chinese: 汶川大地震; pinyin: Wènchuān dà dìzhèn), after the … Debris flows become the most remarkable geohazards featured by increasing number, high frequency, and low triggering rainfall. The 2008 Sichuan earthquake [9] or the Great Sichuan Earthquake was a deadly earthquake that measured at 8.0 M s [1] [10] [11] and 7.9 M w [12] [13] occurred at 14:28:01 CST (06:28 UTC) [14] on Monday, May 12, 2008 in Sichuan province of China, killing an estimated 68,000 people. Rock avalanches and landslides caused many fatalities directly and disrupted the transportation system, extensively disrupting rescue efforts and thereby causing additional fatalities. May 12, 2008, Sichuan earthquake in context The devastating earthquake that struck Sichuan province five years ago marked one of a series in the earthquake-prone region. For example, debris flows occurred on rock avalanches and landslides, followed by landslide-dammed lakes, and then by additional debris flows and breakouts of the landslide-dammed lakes and downstream flooding. The 2008 Sichuan earthquake was one of the deadliest natural disasters in China’s recent history, and it inspired unprecedented activism in China. ScanSAR provides the greatest area coverage from a single scene, with image dimensions of 100km (in range direction) by 150km (in azimuth direction,extendable to 1,650km) and corresponding ground resolution of 18m. Copyright reserved.
An integrated strategy of continuing emergency response and economic reconstruction is required. Find the perfect 2008 Sichuan Earthquake stock photos and editorial news pictures from Getty Images. Background Emergency response to the May 2008 Sichuan earthquake has already been described. flooding caused by natural dams, was crucial for onsite emergency response.
The role of SAR imagery in emergency rapid response to global disaster is firmly established. Seismic analysis confirms that the major shock occurred on the Beichuan–Yingxiu Fault and that aftershocks rapidly extended in a straight …
Access to relevant data is crucial at the time of a disaster. You can also search for this author in The death toll from the most deadly earthquake to hit China in more than three decades today reached nearly 10,000 in Sichuan province alone, the state-run Xinhua news agency reported.. Seismic analysis confirms that the major shock occurred on the Beichuan–Yingxiu Fault and that aftershocks rapidly extended in a straight northeast–southeast direction along the Longmenshan Fault zone. Chengdu. Particular attention was given to four key issues: assessment of damage to buildings and … In: Baker VR, Kochel RC, Patton PC (eds) US Geological Survey Open-File Report, vol 54Costa JE, Schuster RL (1991) Documented historical landslide dams from around the world. doi:Kallen D, Xiang W et al (2006) Landslides at Qingjiang river in the downstream area of Shuibuya dam site, China. It can be anticipated that post-earthquake geohazards, particularly for debris flows, will continue for 5–10 years and even for as long as 20 years.
Sci China Ser E 46(Suppl):1–11Cui P, Wei FQ, He SM et al (2008) Mountain disasters induced by the earthquake of May 12 in Wenchuan and the disaster mitigation.
Landslide-dammed lakes not only flooded human habitats in upstream areas but also posed threats to potentially inundated downstream areas with large populations.
A plan for geohazard prevention in the earthquake-active mountainous areas is needed in advance.Immediate online access to all issues from 2019. Acquisitions in HH deliver a higher contrast between water and land surface as compared to VV, and are therefore generally the better choice. HV data is only available in combination with a co-polarisation channel. Pairing richer provinces with poorer ones to spur … The multi-mission platform UN-SPIDER not only provides access but also increases awareness of the value of such data.
The last two issues of GIM International featured the valuable contribution made by spaceborne remote sensing to rapidemergency response activities.
You can also search for this author in The first choice is previous TerraSAR-X data, allowing direct comparison. In an emergency, however, acquiring the first possible scene of the affected area clearly takes priority. Debris flow (3), Chongqing Branch of Science and Technology Literature Press, Chongqing, pp 58–66 (in Chinese)Yin YP (2008) Researches on the geo-hazards triggered by Wenchuan earthquake, Sichuan. For a high-resolution image of a particular feature (e.g. China Geological Survey has identified 4,970 potentially risky sites, 1,701 landslides, 1,844 rock avalanches, 515 debris flows, and 1,093 unstable slopes. (Lin et al, 2014).
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